1// 2// This module has been generated by smidump 0.4.5. Do not edit. 3// 4module IF-MIB { 5 6 import IANAifType-MIB (IANAifType); 7 import IRTF-NMRG-SMING (Counter32, Counter64, 8 DisplayString255, Gauge32, 9 PhysAddress, TimeStamp, TimeTicks, 10 TruthValue); 11 import IRTF-NMRG-SMING-SNMP (AutonomousType, RowStatus, 12 TestAndIncr, mib-2); 13 import SNMPv2-MIB (snmpTraps); 14 15// 16// MODULE META INFORMATION 17// 18 19 organization 20 "IETF Interfaces MIB Working Group"; 21 22 contact 23 " Keith McCloghrie 24 Cisco Systems, Inc. 25 170 West Tasman Drive 26 San Jose, CA 95134-1706 27 US 28 29 408-526-5260 30 kzm@cisco.com"; 31 32 description 33 "The MIB module to describe generic objects for network 34 interface sub-layers. This MIB is an updated version of 35 MIB-II's ifTable, and incorporates the extensions defined in 36 RFC 1229."; 37 38 revision { 39 date "2000-06-14 00:00"; 40 description 41 "Clarifications agreed upon by the Interfaces MIB WG, and 42 published as RFC 2863."; 43 }; 44 revision { 45 date "1996-02-28 21:55"; 46 description 47 "Revisions made by the Interfaces MIB WG, and published in 48 RFC 2233."; 49 }; 50 revision { 51 date "1993-11-08 21:55"; 52 description 53 "Initial revision, published as part of RFC 1573."; 54 }; 55 56 identity ifMIB; 57 58// 59// TYPE DEFINITIONS 60// 61 62 typedef OwnerString { 63 type OctetString (0..255); 64 format "255a"; 65 status deprecated; 66 description 67 "This data type is used to model an administratively 68 assigned name of the owner of a resource. This information 69 is taken from the NVT ASCII character set. It is suggested 70 that this name contain one or more of the following: ASCII 71 form of the manager station's transport address, management 72 station name (e.g., domain name), network management 73 personnel's name, location, or phone number. In some cases 74 the agent itself will be the owner of an entry. In these 75 cases, this string shall be set to a string starting with 76 'agent'."; 77 }; 78 79 typedef InterfaceIndex { 80 type Integer32 (1..2147483647); 81 format "d"; 82 description 83 "A unique value, greater than zero, for each interface or 84 interface sub-layer in the managed system. It is 85 recommended that values are assigned contiguously starting 86 from 1. The value for each interface sub-layer must remain 87 constant at least from one re-initialization of the entity's 88 network management system to the next re-initialization."; 89 }; 90 91 typedef InterfaceIndexOrZero { 92 type Integer32 (0..2147483647); 93 format "d"; 94 description 95 "This textual convention is an extension of the 96 InterfaceIndex convention. The latter defines a greater 97 than zero value used to identify an interface or interface 98 sub-layer in the managed system. This extension permits the 99 additional value of zero. the value zero is object-specific 100 and must therefore be defined as part of the description of 101 any object which uses this syntax. Examples of the usage of 102 zero might include situations where interface was unknown, 103 or when none or all interfaces need to be referenced."; 104 }; 105 106// 107// OBJECT DEFINITIONS 108// 109 110 111 node interfaces { 112 oid mib-2.2; 113 }; 114 115 scalar ifNumber { 116 oid interfaces.1; 117 type Integer32; 118 access readonly; 119 description 120 "The number of network interfaces (regardless of their 121 current state) present on this system."; 122 }; 123 124 table ifTable { 125 oid interfaces.2; 126 description 127 "A list of interface entries. The number of entries is 128 given by the value of ifNumber."; 129 130 row ifEntry { 131 oid ifTable.1; 132 index (ifIndex); 133 description 134 "An entry containing management information applicable to a 135 particular interface."; 136 137 column ifIndex { 138 oid ifEntry.1; 139 type InterfaceIndex; 140 access readonly; 141 description 142 "A unique value, greater than zero, for each interface. It 143 is recommended that values are assigned contiguously 144 starting from 1. The value for each interface sub-layer 145 must remain constant at least from one re-initialization of 146 the entity's network management system to the next re- 147 initialization."; 148 }; 149 150 column ifDescr { 151 oid ifEntry.2; 152 type DisplayString (0..255); 153 access readonly; 154 description 155 "A textual string containing information about the 156 interface. This string should include the name of the 157 manufacturer, the product name and the version of the 158 interface hardware/software."; 159 }; 160 161 column ifType { 162 oid ifEntry.3; 163 type IANAifType; 164 access readonly; 165 description 166 "The type of interface. Additional values for ifType are 167 assigned by the Internet Assigned Numbers Authority (IANA), 168 through updating the syntax of the IANAifType textual 169 convention."; 170 }; 171 172 column ifMtu { 173 oid ifEntry.4; 174 type Integer32; 175 access readonly; 176 description 177 "The size of the largest packet which can be sent/received 178 on the interface, specified in octets. For interfaces that 179 are used for transmitting network datagrams, this is the 180 size of the largest network datagram that can be sent on the 181 interface."; 182 }; 183 184 column ifSpeed { 185 oid ifEntry.5; 186 type Gauge32; 187 access readonly; 188 description 189 "An estimate of the interface's current bandwidth in bits 190 per second. For interfaces which do not vary in bandwidth 191 or for those where no accurate estimation can be made, this 192 object should contain the nominal bandwidth. If the 193 bandwidth of the interface is greater than the maximum value 194 reportable by this object then this object should report its 195 maximum value (4,294,967,295) and ifHighSpeed must be used 196 to report the interace's speed. For a sub-layer which has 197 no concept of bandwidth, this object should be zero."; 198 }; 199 200 column ifPhysAddress { 201 oid ifEntry.6; 202 type PhysAddress; 203 access readonly; 204 description 205 "The interface's address at its protocol sub-layer. For 206 example, for an 802.x interface, this object normally 207 contains a MAC address. The interface's media-specific MIB 208 must define the bit and byte ordering and the format of the 209 value of this object. For interfaces which do not have such 210 an address (e.g., a serial line), this object should contain 211 an octet string of zero length."; 212 }; 213 214 column ifAdminStatus { 215 oid ifEntry.7; 216 type Enumeration (up(1), down(2), testing(3)); 217 access readwrite; 218 description 219 "The desired state of the interface. The testing(3) state 220 indicates that no operational packets can be passed. When a 221 managed system initializes, all interfaces start with 222 ifAdminStatus in the down(2) state. As a result of either 223 explicit management action or per configuration information 224 retained by the managed system, ifAdminStatus is then 225 changed to either the up(1) or testing(3) states (or remains 226 in the down(2) state)."; 227 }; 228 229 column ifOperStatus { 230 oid ifEntry.8; 231 type Enumeration (up(1), down(2), testing(3), 232 unknown(4), dormant(5), notPresent(6), 233 lowerLayerDown(7)); 234 access readonly; 235 description 236 "The current operational state of the interface. The 237 testing(3) state indicates that no operational packets can 238 be passed. If ifAdminStatus is down(2) then ifOperStatus 239 should be down(2). If ifAdminStatus is changed to up(1) 240 then ifOperStatus should change to up(1) if the interface is 241 ready to transmit and receive network traffic; it should 242 change to dormant(5) if the interface is waiting for 243 external actions (such as a serial line waiting for an 244 incoming connection); it should remain in the down(2) state 245 if and only if there is a fault that prevents it from going 246 to the up(1) state; it should remain in the notPresent(6) 247 state if the interface has missing (typically, hardware) 248 components."; 249 }; 250 251 column ifLastChange { 252 oid ifEntry.9; 253 type TimeTicks; 254 access readonly; 255 description 256 "The value of sysUpTime at the time the interface entered 257 its current operational state. If the current state was 258 entered prior to the last re-initialization of the local 259 network management subsystem, then this object contains a 260 zero value."; 261 }; 262 263 column ifInOctets { 264 oid ifEntry.10; 265 type Counter32; 266 access readonly; 267 description 268 "The total number of octets received on the interface, 269 270 271 including framing characters. 272 273 Discontinuities in the value of this counter can occur at 274 re-initialization of the management system, and at other 275 times as indicated by the value of 276 ifCounterDiscontinuityTime."; 277 }; 278 279 column ifInUcastPkts { 280 oid ifEntry.11; 281 type Counter32; 282 access readonly; 283 description 284 "The number of packets, delivered by this sub-layer to a 285 higher (sub-)layer, which were not addressed to a multicast 286 or broadcast address at this sub-layer. 287 288 Discontinuities in the value of this counter can occur at 289 re-initialization of the management system, and at other 290 times as indicated by the value of 291 ifCounterDiscontinuityTime."; 292 }; 293 294 column ifInNUcastPkts { 295 oid ifEntry.12; 296 type Counter32; 297 access readonly; 298 status deprecated; 299 description 300 "The number of packets, delivered by this sub-layer to a 301 higher (sub-)layer, which were addressed to a multicast or 302 broadcast address at this sub-layer. 303 304 Discontinuities in the value of this counter can occur at 305 re-initialization of the management system, and at other 306 times as indicated by the value of 307 ifCounterDiscontinuityTime. 308 309 This object is deprecated in favour of ifInMulticastPkts and 310 ifInBroadcastPkts."; 311 }; 312 313 column ifInDiscards { 314 oid ifEntry.13; 315 type Counter32; 316 access readonly; 317 description 318 "The number of inbound packets which were chosen to be 319 discarded even though no errors had been detected to prevent 320 321 322 their being deliverable to a higher-layer protocol. One 323 possible reason for discarding such a packet could be to 324 free up buffer space. 325 326 Discontinuities in the value of this counter can occur at 327 re-initialization of the management system, and at other 328 times as indicated by the value of 329 ifCounterDiscontinuityTime."; 330 }; 331 332 column ifInErrors { 333 oid ifEntry.14; 334 type Counter32; 335 access readonly; 336 description 337 "For packet-oriented interfaces, the number of inbound 338 packets that contained errors preventing them from being 339 deliverable to a higher-layer protocol. For character- 340 oriented or fixed-length interfaces, the number of inbound 341 transmission units that contained errors preventing them 342 from being deliverable to a higher-layer protocol. 343 344 Discontinuities in the value of this counter can occur at 345 re-initialization of the management system, and at other 346 times as indicated by the value of 347 ifCounterDiscontinuityTime."; 348 }; 349 350 column ifInUnknownProtos { 351 oid ifEntry.15; 352 type Counter32; 353 access readonly; 354 description 355 "For packet-oriented interfaces, the number of packets 356 received via the interface which were discarded because of 357 an unknown or unsupported protocol. For character-oriented 358 or fixed-length interfaces that support protocol 359 multiplexing the number of transmission units received via 360 the interface which were discarded because of an unknown or 361 unsupported protocol. For any interface that does not 362 support protocol multiplexing, this counter will always be 363 0. 364 365 Discontinuities in the value of this counter can occur at 366 re-initialization of the management system, and at other 367 times as indicated by the value of 368 ifCounterDiscontinuityTime."; 369 }; 370 371 column ifOutOctets { 372 oid ifEntry.16; 373 type Counter32; 374 access readonly; 375 description 376 "The total number of octets transmitted out of the 377 interface, including framing characters. 378 379 Discontinuities in the value of this counter can occur at 380 re-initialization of the management system, and at other 381 times as indicated by the value of 382 ifCounterDiscontinuityTime."; 383 }; 384 385 column ifOutUcastPkts { 386 oid ifEntry.17; 387 type Counter32; 388 access readonly; 389 description 390 "The total number of packets that higher-level protocols 391 requested be transmitted, and which were not addressed to a 392 multicast or broadcast address at this sub-layer, including 393 those that were discarded or not sent. 394 395 Discontinuities in the value of this counter can occur at 396 re-initialization of the management system, and at other 397 times as indicated by the value of 398 ifCounterDiscontinuityTime."; 399 }; 400 401 column ifOutNUcastPkts { 402 oid ifEntry.18; 403 type Counter32; 404 access readonly; 405 status deprecated; 406 description 407 "The total number of packets that higher-level protocols 408 requested be transmitted, and which were addressed to a 409 multicast or broadcast address at this sub-layer, including 410 those that were discarded or not sent. 411 412 Discontinuities in the value of this counter can occur at 413 re-initialization of the management system, and at other 414 times as indicated by the value of 415 ifCounterDiscontinuityTime. 416 417 This object is deprecated in favour of ifOutMulticastPkts 418 and ifOutBroadcastPkts."; 419 }; 420 421 column ifOutDiscards { 422 oid ifEntry.19; 423 type Counter32; 424 access readonly; 425 description 426 "The number of outbound packets which were chosen to be 427 discarded even though no errors had been detected to prevent 428 their being transmitted. One possible reason for discarding 429 such a packet could be to free up buffer space. 430 431 Discontinuities in the value of this counter can occur at 432 re-initialization of the management system, and at other 433 times as indicated by the value of 434 ifCounterDiscontinuityTime."; 435 }; 436 437 column ifOutErrors { 438 oid ifEntry.20; 439 type Counter32; 440 access readonly; 441 description 442 "For packet-oriented interfaces, the number of outbound 443 packets that could not be transmitted because of errors. 444 For character-oriented or fixed-length interfaces, the 445 number of outbound transmission units that could not be 446 transmitted because of errors. 447 448 Discontinuities in the value of this counter can occur at 449 re-initialization of the management system, and at other 450 times as indicated by the value of 451 ifCounterDiscontinuityTime."; 452 }; 453 454 column ifOutQLen { 455 oid ifEntry.21; 456 type Gauge32; 457 access readonly; 458 status deprecated; 459 description 460 "The length of the output packet queue (in packets)."; 461 }; 462 463 column ifSpecific { 464 oid ifEntry.22; 465 type ObjectIdentifier; 466 access readonly; 467 status deprecated; 468 description 469 "A reference to MIB definitions specific to the particular 470 media being used to realize the interface. It is 471 472 473 recommended that this value point to an instance of a MIB 474 object in the media-specific MIB, i.e., that this object 475 have the semantics associated with the InstancePointer 476 textual convention defined in RFC 2579. In fact, it is 477 recommended that the media-specific MIB specify what value 478 ifSpecific should/can take for values of ifType. If no MIB 479 definitions specific to the particular media are available, 480 the value should be set to the OBJECT IDENTIFIER { 0 0 }."; 481 }; 482 }; 483 }; 484 485 node ifMIB { 486 oid mib-2.31; 487 }; 488 489 node ifMIBObjects { 490 oid ifMIB.1; 491 }; 492 493 table ifXTable { 494 oid ifMIBObjects.1; 495 description 496 "A list of interface entries. The number of entries is 497 given by the value of ifNumber. This table contains 498 additional objects for the interface table."; 499 500 row ifXEntry { 501 oid ifXTable.1; 502 augments ifEntry; 503 description 504 "An entry containing additional management information 505 applicable to a particular interface."; 506 507 column ifName { 508 oid ifXEntry.1; 509 type DisplayString; 510 access readonly; 511 description 512 "The textual name of the interface. The value of this 513 object should be the name of the interface as assigned by 514 the local device and should be suitable for use in commands 515 entered at the device's `console'. This might be a text 516 name, such as `le0' or a simple port number, such as `1', 517 depending on the interface naming syntax of the device. If 518 several entries in the ifTable together represent a single 519 interface as named by the device, then each will have the 520 same value of ifName. Note that for an agent which responds 521 to SNMP queries concerning an interface on some other 522 (proxied) device, then the value of ifName for such an 523 interface is the proxied device's local name for it. 524 525 If there is no local name, or this object is otherwise not 526 applicable, then this object contains a zero-length string."; 527 }; 528 529 column ifInMulticastPkts { 530 oid ifXEntry.2; 531 type Counter32; 532 access readonly; 533 description 534 "The number of packets, delivered by this sub-layer to a 535 higher (sub-)layer, which were addressed to a multicast 536 address at this sub-layer. For a MAC layer protocol, this 537 includes both Group and Functional addresses. 538 539 Discontinuities in the value of this counter can occur at 540 re-initialization of the management system, and at other 541 542 543 times as indicated by the value of 544 ifCounterDiscontinuityTime."; 545 }; 546 547 column ifInBroadcastPkts { 548 oid ifXEntry.3; 549 type Counter32; 550 access readonly; 551 description 552 "The number of packets, delivered by this sub-layer to a 553 higher (sub-)layer, which were addressed to a broadcast 554 address at this sub-layer. 555 556 Discontinuities in the value of this counter can occur at 557 re-initialization of the management system, and at other 558 times as indicated by the value of 559 ifCounterDiscontinuityTime."; 560 }; 561 562 column ifOutMulticastPkts { 563 oid ifXEntry.4; 564 type Counter32; 565 access readonly; 566 description 567 "The total number of packets that higher-level protocols 568 requested be transmitted, and which were addressed to a 569 multicast address at this sub-layer, including those that 570 were discarded or not sent. For a MAC layer protocol, this 571 includes both Group and Functional addresses. 572 573 Discontinuities in the value of this counter can occur at 574 re-initialization of the management system, and at other 575 times as indicated by the value of 576 ifCounterDiscontinuityTime."; 577 }; 578 579 column ifOutBroadcastPkts { 580 oid ifXEntry.5; 581 type Counter32; 582 access readonly; 583 description 584 "The total number of packets that higher-level protocols 585 requested be transmitted, and which were addressed to a 586 broadcast address at this sub-layer, including those that 587 were discarded or not sent. 588 589 Discontinuities in the value of this counter can occur at 590 re-initialization of the management system, and at other 591 592 593 times as indicated by the value of 594 ifCounterDiscontinuityTime."; 595 }; 596 597 column ifHCInOctets { 598 oid ifXEntry.6; 599 type Counter64; 600 access readonly; 601 description 602 "The total number of octets received on the interface, 603 including framing characters. This object is a 64-bit 604 version of ifInOctets. 605 606 Discontinuities in the value of this counter can occur at 607 re-initialization of the management system, and at other 608 times as indicated by the value of 609 ifCounterDiscontinuityTime."; 610 }; 611 612 column ifHCInUcastPkts { 613 oid ifXEntry.7; 614 type Counter64; 615 access readonly; 616 description 617 "The number of packets, delivered by this sub-layer to a 618 higher (sub-)layer, which were not addressed to a multicast 619 or broadcast address at this sub-layer. This object is a 620 64-bit version of ifInUcastPkts. 621 622 Discontinuities in the value of this counter can occur at 623 re-initialization of the management system, and at other 624 times as indicated by the value of 625 ifCounterDiscontinuityTime."; 626 }; 627 628 column ifHCInMulticastPkts { 629 oid ifXEntry.8; 630 type Counter64; 631 access readonly; 632 description 633 "The number of packets, delivered by this sub-layer to a 634 higher (sub-)layer, which were addressed to a multicast 635 address at this sub-layer. For a MAC layer protocol, this 636 includes both Group and Functional addresses. This object 637 is a 64-bit version of ifInMulticastPkts. 638 639 Discontinuities in the value of this counter can occur at 640 re-initialization of the management system, and at other 641 times as indicated by the value of 642 ifCounterDiscontinuityTime."; 643 }; 644 645 column ifHCInBroadcastPkts { 646 oid ifXEntry.9; 647 type Counter64; 648 access readonly; 649 description 650 "The number of packets, delivered by this sub-layer to a 651 higher (sub-)layer, which were addressed to a broadcast 652 address at this sub-layer. This object is a 64-bit version 653 of ifInBroadcastPkts. 654 655 Discontinuities in the value of this counter can occur at 656 re-initialization of the management system, and at other 657 times as indicated by the value of 658 ifCounterDiscontinuityTime."; 659 }; 660 661 column ifHCOutOctets { 662 oid ifXEntry.10; 663 type Counter64; 664 access readonly; 665 description 666 "The total number of octets transmitted out of the 667 interface, including framing characters. This object is a 668 64-bit version of ifOutOctets. 669 670 Discontinuities in the value of this counter can occur at 671 re-initialization of the management system, and at other 672 times as indicated by the value of 673 ifCounterDiscontinuityTime."; 674 }; 675 676 column ifHCOutUcastPkts { 677 oid ifXEntry.11; 678 type Counter64; 679 access readonly; 680 description 681 "The total number of packets that higher-level protocols 682 requested be transmitted, and which were not addressed to a 683 multicast or broadcast address at this sub-layer, including 684 those that were discarded or not sent. This object is a 685 64-bit version of ifOutUcastPkts. 686 687 Discontinuities in the value of this counter can occur at 688 re-initialization of the management system, and at other 689 times as indicated by the value of 690 ifCounterDiscontinuityTime."; 691 }; 692 693 column ifHCOutMulticastPkts { 694 oid ifXEntry.12; 695 type Counter64; 696 access readonly; 697 description 698 "The total number of packets that higher-level protocols 699 requested be transmitted, and which were addressed to a 700 multicast address at this sub-layer, including those that 701 were discarded or not sent. For a MAC layer protocol, this 702 includes both Group and Functional addresses. This object 703 is a 64-bit version of ifOutMulticastPkts. 704 705 Discontinuities in the value of this counter can occur at 706 re-initialization of the management system, and at other 707 times as indicated by the value of 708 ifCounterDiscontinuityTime."; 709 }; 710 711 column ifHCOutBroadcastPkts { 712 oid ifXEntry.13; 713 type Counter64; 714 access readonly; 715 description 716 "The total number of packets that higher-level protocols 717 requested be transmitted, and which were addressed to a 718 broadcast address at this sub-layer, including those that 719 were discarded or not sent. This object is a 64-bit version 720 of ifOutBroadcastPkts. 721 722 Discontinuities in the value of this counter can occur at 723 re-initialization of the management system, and at other 724 times as indicated by the value of 725 ifCounterDiscontinuityTime."; 726 }; 727 728 column ifLinkUpDownTrapEnable { 729 oid ifXEntry.14; 730 type Enumeration (enabled(1), disabled(2)); 731 access readwrite; 732 description 733 "Indicates whether linkUp/linkDown traps should be generated 734 for this interface. 735 736 By default, this object should have the value enabled(1) for 737 interfaces which do not operate on 'top' of any other 738 interface (as defined in the ifStackTable), and disabled(2) 739 otherwise."; 740 }; 741 742 column ifHighSpeed { 743 oid ifXEntry.15; 744 type Gauge32; 745 access readonly; 746 description 747 "An estimate of the interface's current bandwidth in units 748 of 1,000,000 bits per second. If this object reports a 749 value of `n' then the speed of the interface is somewhere in 750 the range of `n-500,000' to `n+499,999'. For interfaces 751 which do not vary in bandwidth or for those where no 752 accurate estimation can be made, this object should contain 753 the nominal bandwidth. For a sub-layer which has no concept 754 of bandwidth, this object should be zero."; 755 }; 756 757 column ifPromiscuousMode { 758 oid ifXEntry.16; 759 type TruthValue; 760 access readwrite; 761 description 762 "This object has a value of false(2) if this interface only 763 accepts packets/frames that are addressed to this station. 764 This object has a value of true(1) when the station accepts 765 all packets/frames transmitted on the media. The value 766 true(1) is only legal on certain types of media. If legal, 767 setting this object to a value of true(1) may require the 768 interface to be reset before becoming effective. 769 770 The value of ifPromiscuousMode does not affect the reception 771 of broadcast and multicast packets/frames by the interface."; 772 }; 773 774 column ifConnectorPresent { 775 oid ifXEntry.17; 776 type TruthValue; 777 access readonly; 778 description 779 "This object has the value 'true(1)' if the interface 780 sublayer has a physical connector and the value 'false(2)' 781 otherwise."; 782 }; 783 784 column ifAlias { 785 oid ifXEntry.18; 786 type DisplayString (0..64); 787 access readwrite; 788 description 789 "This object is an 'alias' name for the interface as 790 specified by a network manager, and provides a non-volatile 791 'handle' for the interface. 792 793 On the first instantiation of an interface, the value of 794 ifAlias associated with that interface is the zero-length 795 string. As and when a value is written into an instance of 796 ifAlias through a network management set operation, then the 797 agent must retain the supplied value in the ifAlias instance 798 associated with the same interface for as long as that 799 interface remains instantiated, including across all re- 800 initializations/reboots of the network management system, 801 including those which result in a change of the interface's 802 ifIndex value. 803 804 An example of the value which a network manager might store 805 in this object for a WAN interface is the (Telco's) circuit 806 number/identifier of the interface. 807 808 Some agents may support write-access only for interfaces 809 having particular values of ifType. An agent which supports 810 write access to this object is required to keep the value in 811 non-volatile storage, but it may limit the length of new 812 values depending on how much storage is already occupied by 813 the current values for other interfaces."; 814 }; 815 816 column ifCounterDiscontinuityTime { 817 oid ifXEntry.19; 818 type TimeStamp; 819 access readonly; 820 description 821 "The value of sysUpTime on the most recent occasion at which 822 any one or more of this interface's counters suffered a 823 discontinuity. The relevant counters are the specific 824 instances associated with this interface of any Counter32 or 825 826 827 Counter64 object contained in the ifTable or ifXTable. If 828 no such discontinuities have occurred since the last re- 829 initialization of the local management subsystem, then this 830 object contains a zero value."; 831 }; 832 }; 833 }; 834 835 table ifStackTable { 836 oid ifMIBObjects.2; 837 description 838 "The table containing information on the relationships 839 between the multiple sub-layers of network interfaces. In 840 particular, it contains information on which sub-layers run 841 'on top of' which other sub-layers, where each sub-layer 842 corresponds to a conceptual row in the ifTable. For 843 example, when the sub-layer with ifIndex value x runs over 844 the sub-layer with ifIndex value y, then this table 845 contains: 846 847 ifStackStatus.x.y=active 848 849 For each ifIndex value, I, which identifies an active 850 interface, there are always at least two instantiated rows 851 in this table associated with I. For one of these rows, I 852 is the value of ifStackHigherLayer; for the other, I is the 853 value of ifStackLowerLayer. (If I is not involved in 854 multiplexing, then these are the only two rows associated 855 with I.) 856 857 For example, two rows exist even for an interface which has 858 no others stacked on top or below it: 859 860 ifStackStatus.0.x=active 861 ifStackStatus.x.0=active "; 862 863 row ifStackEntry { 864 oid ifStackTable.1; 865 index (ifStackHigherLayer, ifStackLowerLayer); 866 create ; 867 description 868 "Information on a particular relationship between two sub- 869 layers, specifying that one sub-layer runs on 'top' of the 870 other sub-layer. Each sub-layer corresponds to a conceptual 871 row in the ifTable."; 872 873 column ifStackHigherLayer { 874 oid ifStackEntry.1; 875 type InterfaceIndexOrZero; 876 access noaccess; 877 description 878 "The value of ifIndex corresponding to the higher sub-layer 879 of the relationship, i.e., the sub-layer which runs on 'top' 880 of the sub-layer identified by the corresponding instance of 881 ifStackLowerLayer. If there is no higher sub-layer (below 882 the internetwork layer), then this object has the value 0."; 883 }; 884 885 column ifStackLowerLayer { 886 oid ifStackEntry.2; 887 type InterfaceIndexOrZero; 888 access noaccess; 889 description 890 "The value of ifIndex corresponding to the lower sub-layer 891 of the relationship, i.e., the sub-layer which runs 'below' 892 the sub-layer identified by the corresponding instance of 893 ifStackHigherLayer. If there is no lower sub-layer, then 894 this object has the value 0."; 895 }; 896 897 column ifStackStatus { 898 oid ifStackEntry.3; 899 type RowStatus; 900 access readwrite; 901 description 902 "The status of the relationship between two sub-layers. 903 904 Changing the value of this object from 'active' to 905 'notInService' or 'destroy' will likely have consequences up 906 and down the interface stack. Thus, write access to this 907 object is likely to be inappropriate for some types of 908 interfaces, and many implementations will choose not to 909 support write-access for any type of interface."; 910 }; 911 }; 912 }; 913 914 table ifTestTable { 915 oid ifMIBObjects.3; 916 status deprecated; 917 description 918 "This table contains one entry per interface. It defines 919 objects which allow a network manager to instruct an agent 920 to test an interface for various faults. Tests for an 921 interface are defined in the media-specific MIB for that 922 interface. After invoking a test, the object ifTestResult 923 can be read to determine the outcome. If an agent can not 924 perform the test, ifTestResult is set to so indicate. The 925 object ifTestCode can be used to provide further test- 926 specific or interface-specific (or even enterprise-specific) 927 information concerning the outcome of the test. Only one 928 test can be in progress on each interface at any one time. 929 If one test is in progress when another test is invoked, the 930 second test is rejected. Some agents may reject a test when 931 a prior test is active on another interface. 932 933 Before starting a test, a manager-station must first obtain 934 'ownership' of the entry in the ifTestTable for the 935 interface to be tested. This is accomplished with the 936 ifTestId and ifTestStatus objects as follows: 937 938 try_again: 939 get (ifTestId, ifTestStatus) 940 while (ifTestStatus != notInUse) 941 /* 942 * Loop while a test is running or some other 943 * manager is configuring a test. 944 */ 945 short delay 946 get (ifTestId, ifTestStatus) 947 } 948 949 /* 950 * Is not being used right now -- let's compete 951 * to see who gets it. 952 */ 953 lock_value = ifTestId 954 955 if ( set(ifTestId = lock_value, ifTestStatus = inUse, 956 957 958 ifTestOwner = 'my-IP-address') == FAILURE) 959 /* 960 * Another manager got the ifTestEntry -- go 961 * try again 962 */ 963 goto try_again; 964 965 /* 966 * I have the lock 967 */ 968 set up any test parameters. 969 970 /* 971 * This starts the test 972 */ 973 set(ifTestType = test_to_run); 974 975 wait for test completion by polling ifTestResult 976 977 when test completes, agent sets ifTestResult 978 agent also sets ifTestStatus = 'notInUse' 979 980 retrieve any additional test results, and ifTestId 981 982 if (ifTestId == lock_value+1) results are valid 983 984 A manager station first retrieves the value of the 985 appropriate ifTestId and ifTestStatus objects, periodically 986 repeating the retrieval if necessary, until the value of 987 ifTestStatus is 'notInUse'. The manager station then tries 988 to set the same ifTestId object to the value it just 989 retrieved, the same ifTestStatus object to 'inUse', and the 990 corresponding ifTestOwner object to a value indicating 991 itself. If the set operation succeeds then the manager has 992 obtained ownership of the ifTestEntry, and the value of the 993 ifTestId object is incremented by the agent (per the 994 semantics of TestAndIncr). Failure of the set operation 995 indicates that some other manager has obtained ownership of 996 the ifTestEntry. 997 998 Once ownership is obtained, any test parameters can be 999 setup, and then the test is initiated by setting ifTestType. 1000 On completion of the test, the agent sets ifTestStatus to 1001 'notInUse'. Once this occurs, the manager can retrieve the 1002 results. In the (rare) event that the invocation of tests 1003 by two network managers were to overlap, then there would be 1004 a possibility that the first test's results might be 1005 overwritten by the second test's results prior to the first 1006 1007 1008 results being read. This unlikely circumstance can be 1009 detected by a network manager retrieving ifTestId at the 1010 same time as retrieving the test results, and ensuring that 1011 the results are for the desired request. 1012 1013 If ifTestType is not set within an abnormally long period of 1014 time after ownership is obtained, the agent should time-out 1015 the manager, and reset the value of the ifTestStatus object 1016 back to 'notInUse'. It is suggested that this time-out 1017 period be 5 minutes. 1018 1019 In general, a management station must not retransmit a 1020 request to invoke a test for which it does not receive a 1021 response; instead, it properly inspects an agent's MIB to 1022 determine if the invocation was successful. Only if the 1023 invocation was unsuccessful, is the invocation request 1024 retransmitted. 1025 1026 Some tests may require the interface to be taken off-line in 1027 order to execute them, or may even require the agent to 1028 reboot after completion of the test. In these 1029 circumstances, communication with the management station 1030 invoking the test may be lost until after completion of the 1031 test. An agent is not required to support such tests. 1032 However, if such tests are supported, then the agent should 1033 make every effort to transmit a response to the request 1034 which invoked the test prior to losing communication. When 1035 the agent is restored to normal service, the results of the 1036 test are properly made available in the appropriate objects. 1037 Note that this requires that the ifIndex value assigned to 1038 an interface must be unchanged even if the test causes a 1039 reboot. An agent must reject any test for which it cannot, 1040 perhaps due to resource constraints, make available at least 1041 the minimum amount of information after that test 1042 completes."; 1043 1044 row ifTestEntry { 1045 oid ifTestTable.1; 1046 augments ifEntry; 1047 status deprecated; 1048 description 1049 "An entry containing objects for invoking tests on an 1050 interface."; 1051 1052 column ifTestId { 1053 oid ifTestEntry.1; 1054 type TestAndIncr; 1055 access readwrite; 1056 status deprecated; 1057 description 1058 "This object identifies the current invocation of the 1059 interface's test."; 1060 }; 1061 1062 column ifTestStatus { 1063 oid ifTestEntry.2; 1064 type Enumeration (notInUse(1), inUse(2)); 1065 access readwrite; 1066 status deprecated; 1067 description 1068 "This object indicates whether or not some manager currently 1069 has the necessary 'ownership' required to invoke a test on 1070 this interface. A write to this object is only successful 1071 when it changes its value from 'notInUse(1)' to 'inUse(2)'. 1072 After completion of a test, the agent resets the value back 1073 to 'notInUse(1)'."; 1074 }; 1075 1076 column ifTestType { 1077 oid ifTestEntry.3; 1078 type AutonomousType; 1079 access readwrite; 1080 status deprecated; 1081 description 1082 "A control variable used to start and stop operator- 1083 initiated interface tests. Most OBJECT IDENTIFIER values 1084 assigned to tests are defined elsewhere, in association with 1085 specific types of interface. However, this document assigns 1086 a value for a full-duplex loopback test, and defines the 1087 special meanings of the subject identifier: 1088 1089 noTest OBJECT IDENTIFIER ::= { 0 0 } 1090 1091 When the value noTest is written to this object, no action 1092 is taken unless a test is in progress, in which case the 1093 test is aborted. Writing any other value to this object is 1094 1095 1096 only valid when no test is currently in progress, in which 1097 case the indicated test is initiated. 1098 1099 When read, this object always returns the most recent value 1100 that ifTestType was set to. If it has not been set since 1101 the last initialization of the network management subsystem 1102 on the agent, a value of noTest is returned."; 1103 }; 1104 1105 column ifTestResult { 1106 oid ifTestEntry.4; 1107 type Enumeration (none(1), success(2), 1108 inProgress(3), notSupported(4), 1109 unAbleToRun(5), aborted(6), failed(7)); 1110 access readonly; 1111 status deprecated; 1112 description 1113 "This object contains the result of the most recently 1114 requested test, or the value none(1) if no tests have been 1115 requested since the last reset. Note that this facility 1116 provides no provision for saving the results of one test 1117 when starting another, as could be required if used by 1118 multiple managers concurrently."; 1119 }; 1120 1121 column ifTestCode { 1122 oid ifTestEntry.5; 1123 type ObjectIdentifier; 1124 access readonly; 1125 status deprecated; 1126 description 1127 "This object contains a code which contains more specific 1128 information on the test result, for example an error-code 1129 after a failed test. Error codes and other values this 1130 object may take are specific to the type of interface and/or 1131 test. The value may have the semantics of either the 1132 AutonomousType or InstancePointer textual conventions as 1133 defined in RFC 2579. The identifier: 1134 1135 testCodeUnknown OBJECT IDENTIFIER ::= { 0 0 } 1136 1137 is defined for use if no additional result code is 1138 available."; 1139 }; 1140 1141 column ifTestOwner { 1142 oid ifTestEntry.6; 1143 type OwnerString; 1144 access readwrite; 1145 status deprecated; 1146 description 1147 "The entity which currently has the 'ownership' required to 1148 invoke a test on this interface."; 1149 }; 1150 }; 1151 }; 1152 1153 table ifRcvAddressTable { 1154 oid ifMIBObjects.4; 1155 description 1156 "This table contains an entry for each address (broadcast, 1157 multicast, or uni-cast) for which the system will receive 1158 packets/frames on a particular interface, except as follows: 1159 1160 - for an interface operating in promiscuous mode, entries 1161 are only required for those addresses for which the system 1162 would receive frames were it not operating in promiscuous 1163 mode. 1164 1165 1166 - for 802.5 functional addresses, only one entry is 1167 required, for the address which has the functional address 1168 bit ANDed with the bit mask of all functional addresses for 1169 which the interface will accept frames. 1170 1171 A system is normally able to use any unicast address which 1172 corresponds to an entry in this table as a source address."; 1173 1174 row ifRcvAddressEntry { 1175 oid ifRcvAddressTable.1; 1176 index (ifIndex, ifRcvAddressAddress); 1177 create ; 1178 description 1179 "A list of objects identifying an address for which the 1180 system will accept packets/frames on the particular 1181 interface identified by the index value ifIndex."; 1182 1183 column ifRcvAddressAddress { 1184 oid ifRcvAddressEntry.1; 1185 type PhysAddress; 1186 access noaccess; 1187 description 1188 "An address for which the system will accept packets/frames 1189 on this entry's interface."; 1190 }; 1191 1192 column ifRcvAddressStatus { 1193 oid ifRcvAddressEntry.2; 1194 type RowStatus; 1195 access readwrite; 1196 description 1197 "This object is used to create and delete rows in the 1198 ifRcvAddressTable."; 1199 }; 1200 1201 column ifRcvAddressType { 1202 oid ifRcvAddressEntry.3; 1203 type Enumeration (other(1), volatile(2), 1204 nonVolatile(3)); 1205 access readwrite; 1206 default volatile; 1207 description 1208 "This object has the value nonVolatile(3) for those entries 1209 in the table which are valid and will not be deleted by the 1210 next restart of the managed system. Entries having the 1211 value volatile(2) are valid and exist, but have not been 1212 saved, so that will not exist after the next restart of the 1213 managed system. Entries having the value other(1) are valid 1214 and exist but are not classified as to whether they will 1215 continue to exist after the next restart."; 1216 }; 1217 }; 1218 }; 1219 1220 scalar ifTableLastChange { 1221 oid ifMIBObjects.5; 1222 type TimeTicks; 1223 access readonly; 1224 description 1225 "The value of sysUpTime at the time of the last creation or 1226 deletion of an entry in the ifTable. If the number of 1227 entries has been unchanged since the last re-initialization 1228 of the local network management subsystem, then this object 1229 contains a zero value."; 1230 }; 1231 1232 scalar ifStackLastChange { 1233 oid ifMIBObjects.6; 1234 type TimeTicks; 1235 access readonly; 1236 description 1237 "The value of sysUpTime at the time of the last change of 1238 the (whole) interface stack. A change of the interface 1239 stack is defined to be any creation, deletion, or change in 1240 value of any instance of ifStackStatus. If the interface 1241 stack has been unchanged since the last re-initialization of 1242 the local network management subsystem, then this object 1243 contains a zero value."; 1244 }; 1245 1246 node ifConformance { 1247 oid ifMIB.2; 1248 }; 1249 1250 node ifGroups { 1251 oid ifConformance.1; 1252 }; 1253 1254 node ifCompliances { 1255 oid ifConformance.2; 1256 }; 1257 1258// 1259// NOTIFICATION DEFINITIONS 1260// 1261 1262 notification linkDown { 1263 oid snmpTraps.3; 1264 objects (ifIndex, ifAdminStatus, ifOperStatus); 1265 description 1266 "A linkDown trap signifies that the SNMP entity, acting in 1267 an agent role, has detected that the ifOperStatus object for 1268 one of its communication links is about to enter the down 1269 state from some other state (but not from the notPresent 1270 state). This other state is indicated by the included value 1271 of ifOperStatus."; 1272 }; 1273 1274 notification linkUp { 1275 oid snmpTraps.4; 1276 objects (ifIndex, ifAdminStatus, ifOperStatus); 1277 description 1278 "A linkUp trap signifies that the SNMP entity, acting in an 1279 agent role, has detected that the ifOperStatus object for 1280 one of its communication links left the down state and 1281 transitioned into some other state (but not into the 1282 notPresent state). This other state is indicated by the 1283 included value of ifOperStatus."; 1284 }; 1285 1286// 1287// GROUP DEFINITIONS 1288// 1289 1290 group ifGeneralGroup { 1291 oid ifGroups.1; 1292 members (ifDescr, ifType, ifSpeed, ifPhysAddress, 1293 ifAdminStatus, ifOperStatus, ifLastChange, 1294 ifLinkUpDownTrapEnable, ifConnectorPresent, 1295 ifHighSpeed, ifName); 1296 status deprecated; 1297 description 1298 "A collection of objects deprecated in favour of 1299 ifGeneralInformationGroup."; 1300 }; 1301 1302 group ifFixedLengthGroup { 1303 oid ifGroups.2; 1304 members (ifInOctets, ifOutOctets, ifInUnknownProtos, 1305 ifInErrors, ifOutErrors); 1306 description 1307 "A collection of objects providing information specific to 1308 non-high speed (non-high speed interfaces transmit and 1309 receive at speeds less than or equal to 20,000,000 1310 bits/second) character-oriented or fixed-length-transmission 1311 network interfaces."; 1312 }; 1313 1314 group ifHCFixedLengthGroup { 1315 oid ifGroups.3; 1316 members (ifHCInOctets, ifHCOutOctets, ifInOctets, 1317 ifOutOctets, ifInUnknownProtos, ifInErrors, 1318 ifOutErrors); 1319 description 1320 "A collection of objects providing information specific to 1321 high speed (greater than 20,000,000 bits/second) character- 1322 oriented or fixed-length-transmission network interfaces."; 1323 }; 1324 1325 group ifPacketGroup { 1326 oid ifGroups.4; 1327 members (ifInOctets, ifOutOctets, ifInUnknownProtos, 1328 ifInErrors, ifOutErrors, ifMtu, 1329 ifInUcastPkts, ifInMulticastPkts, 1330 ifInBroadcastPkts, ifInDiscards, 1331 ifOutUcastPkts, ifOutMulticastPkts, 1332 ifOutBroadcastPkts, ifOutDiscards, 1333 ifPromiscuousMode); 1334 description 1335 "A collection of objects providing information specific to 1336 non-high speed (non-high speed interfaces transmit and 1337 receive at speeds less than or equal to 20,000,000 1338 bits/second) packet-oriented network interfaces."; 1339 }; 1340 1341 group ifHCPacketGroup { 1342 oid ifGroups.5; 1343 members (ifHCInOctets, ifHCOutOctets, ifInOctets, 1344 ifOutOctets, ifInUnknownProtos, ifInErrors, 1345 ifOutErrors, ifMtu, ifInUcastPkts, 1346 ifInMulticastPkts, ifInBroadcastPkts, 1347 ifInDiscards, ifOutUcastPkts, 1348 ifOutMulticastPkts, ifOutBroadcastPkts, 1349 ifOutDiscards, ifPromiscuousMode); 1350 description 1351 "A collection of objects providing information specific to 1352 high speed (greater than 20,000,000 bits/second but less 1353 than or equal to 650,000,000 bits/second) packet-oriented 1354 network interfaces."; 1355 }; 1356 1357 group ifVHCPacketGroup { 1358 oid ifGroups.6; 1359 members (ifHCInUcastPkts, ifHCInMulticastPkts, 1360 ifHCInBroadcastPkts, ifHCOutUcastPkts, 1361 ifHCOutMulticastPkts, ifHCOutBroadcastPkts, 1362 ifHCInOctets, ifHCOutOctets, ifInOctets, 1363 ifOutOctets, ifInUnknownProtos, ifInErrors, 1364 ifOutErrors, ifMtu, ifInUcastPkts, 1365 ifInMulticastPkts, ifInBroadcastPkts, 1366 ifInDiscards, ifOutUcastPkts, 1367 ifOutMulticastPkts, ifOutBroadcastPkts, 1368 ifOutDiscards, ifPromiscuousMode); 1369 description 1370 "A collection of objects providing information specific to 1371 higher speed (greater than 650,000,000 bits/second) packet- 1372 oriented network interfaces."; 1373 }; 1374 1375 group ifRcvAddressGroup { 1376 oid ifGroups.7; 1377 members (ifRcvAddressStatus, ifRcvAddressType); 1378 description 1379 "A collection of objects providing information on the 1380 multiple addresses which an interface receives."; 1381 }; 1382 1383 group ifTestGroup { 1384 oid ifGroups.8; 1385 members (ifTestId, ifTestStatus, ifTestType, 1386 ifTestResult, ifTestCode, ifTestOwner); 1387 status deprecated; 1388 description 1389 "A collection of objects providing the ability to invoke 1390 tests on an interface."; 1391 }; 1392 1393 group ifStackGroup { 1394 oid ifGroups.9; 1395 members (ifStackStatus); 1396 status deprecated; 1397 description 1398 "The previous collection of objects providing information on 1399 the layering of MIB-II interfaces."; 1400 }; 1401 1402 group ifGeneralInformationGroup { 1403 oid ifGroups.10; 1404 members (ifIndex, ifDescr, ifType, ifSpeed, 1405 ifPhysAddress, ifAdminStatus, ifOperStatus, 1406 ifLastChange, ifLinkUpDownTrapEnable, 1407 ifConnectorPresent, ifHighSpeed, ifName, 1408 ifNumber, ifAlias, ifTableLastChange); 1409 description 1410 "A collection of objects providing information applicable to 1411 all network interfaces."; 1412 }; 1413 1414 group ifStackGroup2 { 1415 oid ifGroups.11; 1416 members (ifStackStatus, ifStackLastChange); 1417 description 1418 "A collection of objects providing information on the 1419 layering of MIB-II interfaces."; 1420 }; 1421 1422 group ifOldObjectsGroup { 1423 oid ifGroups.12; 1424 members (ifInNUcastPkts, ifOutNUcastPkts, ifOutQLen, 1425 ifSpecific); 1426 status deprecated; 1427 description 1428 "The collection of objects deprecated from the original MIB- 1429 II interfaces group."; 1430 }; 1431 1432 group ifCounterDiscontinuityGroup { 1433 oid ifGroups.13; 1434 members (ifCounterDiscontinuityTime); 1435 description 1436 "A collection of objects providing information specific to 1437 interface counter discontinuities."; 1438 }; 1439 1440 group linkUpDownNotificationsGroup { 1441 oid ifGroups.14; 1442 members (linkUp, linkDown); 1443 description 1444 "The notifications which indicate specific changes in the 1445 value of ifOperStatus."; 1446 }; 1447 1448// 1449// COMPLIANCE DEFINITIONS 1450// 1451 1452 compliance ifCompliance { 1453 oid ifCompliances.1; 1454 status deprecated; 1455 description 1456 "A compliance statement defined in a previous version of 1457 this MIB module, for SNMP entities which have network 1458 interfaces."; 1459 1460 mandatory (ifGeneralGroup, ifStackGroup); 1461 1462 optional ifFixedLengthGroup { 1463 description 1464 "This group is mandatory for all network interfaces which 1465 are character-oriented or transmit data in fixed-length 1466 transmission units."; 1467 }; 1468 optional ifHCFixedLengthGroup { 1469 description 1470 "This group is mandatory only for those network interfaces 1471 which are character-oriented or transmit data in fixed- 1472 length transmission units, and for which the value of the 1473 corresponding instance of ifSpeed is greater than 20,000,000 1474 bits/second."; 1475 }; 1476 optional ifPacketGroup { 1477 description 1478 "This group is mandatory for all network interfaces which 1479 are packet-oriented."; 1480 }; 1481 optional ifHCPacketGroup { 1482 description 1483 "This group is mandatory only for those network interfaces 1484 which are packet-oriented and for which the value of the 1485 corresponding instance of ifSpeed is greater than 1486 650,000,000 bits/second."; 1487 }; 1488 optional ifTestGroup { 1489 description 1490 "This group is optional. Media-specific MIBs which require 1491 interface tests are strongly encouraged to use this group 1492 for invoking tests and reporting results. A medium specific 1493 MIB which has mandatory tests may make implementation of 1494 1495 1496 this group mandatory."; 1497 }; 1498 optional ifRcvAddressGroup { 1499 description 1500 "The applicability of this group MUST be defined by the 1501 media-specific MIBs. Media-specific MIBs must define the 1502 exact meaning, use, and semantics of the addresses in this 1503 group."; 1504 }; 1505 1506 refine ifLinkUpDownTrapEnable { 1507 access readonly; 1508 description 1509 "Write access is not required."; 1510 }; 1511 refine ifPromiscuousMode { 1512 access readonly; 1513 description 1514 "Write access is not required."; 1515 }; 1516 refine ifStackStatus { 1517 type RowStatus (active(1)); 1518 access readonly; 1519 description 1520 "Write access is not required, and only one of the six 1521 enumerated values for the RowStatus textual convention need 1522 be supported, specifically: active(1)."; 1523 }; 1524 refine ifAdminStatus { 1525 type Enumeration (up(1), down(2)); 1526 access readonly; 1527 description 1528 "Write access is not required, nor is support for the value 1529 testing(3)."; 1530 }; 1531 }; 1532 1533 compliance ifCompliance2 { 1534 oid ifCompliances.2; 1535 status deprecated; 1536 description 1537 "A compliance statement defined in a previous version of 1538 this MIB module, for SNMP entities which have network 1539 interfaces."; 1540 1541 mandatory (ifGeneralInformationGroup, ifStackGroup2, 1542 ifCounterDiscontinuityGroup); 1543 1544 optional ifFixedLengthGroup { 1545 description 1546 "This group is mandatory for all network interfaces which 1547 are character-oriented or transmit data in fixed-length 1548 transmission units."; 1549 }; 1550 optional ifHCFixedLengthGroup { 1551 description 1552 "This group is mandatory only for those network interfaces 1553 which are character-oriented or transmit data in fixed- 1554 length transmission units, and for which the value of the 1555 corresponding instance of ifSpeed is greater than 20,000,000 1556 bits/second."; 1557 }; 1558 optional ifPacketGroup { 1559 description 1560 "This group is mandatory for all network interfaces which 1561 are packet-oriented."; 1562 }; 1563 optional ifHCPacketGroup { 1564 description 1565 "This group is mandatory only for those network interfaces 1566 which are packet-oriented and for which the value of the 1567 corresponding instance of ifSpeed is greater than 1568 650,000,000 bits/second."; 1569 }; 1570 optional ifRcvAddressGroup { 1571 description 1572 "The applicability of this group MUST be defined by the 1573 media-specific MIBs. Media-specific MIBs must define the 1574 exact meaning, use, and semantics of the addresses in this 1575 group."; 1576 }; 1577 1578 refine ifLinkUpDownTrapEnable { 1579 access readonly; 1580 description 1581 "Write access is not required."; 1582 }; 1583 refine ifPromiscuousMode { 1584 access readonly; 1585 description 1586 "Write access is not required."; 1587 }; 1588 refine ifStackStatus { 1589 type RowStatus (active(1)); 1590 access readonly; 1591 description 1592 "Write access is not required, and only one of the six 1593 enumerated values for the RowStatus textual convention need 1594 be supported, specifically: active(1)."; 1595 }; 1596 refine ifAdminStatus { 1597 type Enumeration (up(1), down(2)); 1598 access readonly; 1599 description 1600 "Write access is not required, nor is support for the value 1601 testing(3)."; 1602 }; 1603 refine ifAlias { 1604 access readonly; 1605 description 1606 "Write access is not required."; 1607 }; 1608 }; 1609 1610 compliance ifCompliance3 { 1611 oid ifCompliances.3; 1612 description 1613 "The compliance statement for SNMP entities which have 1614 network interfaces."; 1615 1616 mandatory (ifGeneralInformationGroup, 1617 linkUpDownNotificationsGroup); 1618 1619 optional ifFixedLengthGroup { 1620 description 1621 "This group is mandatory for those network interfaces which 1622 are character-oriented or transmit data in fixed-length 1623 transmission units, and for which the value of the 1624 corresponding instance of ifSpeed is less than or equal to 1625 20,000,000 bits/second."; 1626 }; 1627 optional ifHCFixedLengthGroup { 1628 description 1629 "This group is mandatory for those network interfaces which 1630 are character-oriented or transmit data in fixed-length 1631 transmission units, and for which the value of the 1632 corresponding instance of ifSpeed is greater than 20,000,000 1633 bits/second."; 1634 }; 1635 optional ifPacketGroup { 1636 description 1637 "This group is mandatory for those network interfaces which 1638 are packet-oriented, and for which the value of the 1639 corresponding instance of ifSpeed is less than or equal to 1640 20,000,000 bits/second."; 1641 }; 1642 optional ifHCPacketGroup { 1643 description 1644 "This group is mandatory only for those network interfaces 1645 which are packet-oriented and for which the value of the 1646 corresponding instance of ifSpeed is greater than 20,000,000 1647 bits/second but less than or equal to 650,000,000 1648 bits/second."; 1649 }; 1650 optional ifVHCPacketGroup { 1651 description 1652 "This group is mandatory only for those network interfaces 1653 which are packet-oriented and for which the value of the 1654 corresponding instance of ifSpeed is greater than 1655 650,000,000 bits/second."; 1656 }; 1657 optional ifCounterDiscontinuityGroup { 1658 description 1659 "This group is mandatory for those network interfaces that 1660 are required to maintain counters (i.e., those for which one 1661 of the ifFixedLengthGroup, ifHCFixedLengthGroup, 1662 ifPacketGroup, ifHCPacketGroup, or ifVHCPacketGroup is 1663 mandatory)."; 1664 }; 1665 optional ifRcvAddressGroup { 1666 description 1667 "The applicability of this group MUST be defined by the 1668 media-specific MIBs. Media-specific MIBs must define the 1669 exact meaning, use, and semantics of the addresses in this 1670 group."; 1671 }; 1672 1673 refine ifLinkUpDownTrapEnable { 1674 access readonly; 1675 description 1676 "Write access is not required."; 1677 }; 1678 refine ifPromiscuousMode { 1679 access readonly; 1680 description 1681 "Write access is not required."; 1682 }; 1683 refine ifAdminStatus { 1684 type Enumeration (up(1), down(2)); 1685 access readonly; 1686 description 1687 "Write access is not required, nor is support for the value 1688 testing(3)."; 1689 }; 1690 refine ifAlias { 1691 access readonly; 1692 description 1693 "Write access is not required."; 1694 }; 1695 }; 1696 1697}; // end of module IF-MIB. 1698