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Run idnits with the --verbose option for more detailed information about the items above. -------------------------------------------------------------------------------- 2 Network Working Group E. Beili 3 Internet-Draft Actelis Networks 4 Intended status: Standards Track N. Nair 5 Expires: October 31, 2007 Wipro Technologies 6 April 29, 2007 8 xDSL multi-pair bonding using Time-Division Inverse Multiplexing 9 (G.Bond/TDIM) MIB 10 draft-ietf-adslmib-gbond-tdim-mib-00.txt 12 Status of This Memo 14 By submitting this Internet-Draft, each author represents that any 15 applicable patent or other IPR claims of which he or she is aware 16 have been or will be disclosed, and any of which he or she becomes 17 aware will be disclosed, in accordance with Section 6 of BCP 79. 19 Internet-Drafts are working documents of the Internet Engineering 20 Task Force (IETF), its areas, and its working groups. Note that 21 other groups may also distribute working documents as Internet- 22 Drafts. 24 Internet-Drafts are draft documents valid for a maximum of six months 25 and may be updated, replaced, or obsoleted by other documents at any 26 time. It is inappropriate to use Internet-Drafts as reference 27 material or to cite them other than as "work in progress." 29 The list of current Internet-Drafts can be accessed at 30 http://www.ietf.org/ietf/1id-abstracts.txt. 32 The list of Internet-Draft Shadow Directories can be accessed at 33 http://www.ietf.org/shadow.html. 35 This Internet-Draft will expire on October 31, 2007. 37 Copyright Notice 39 Copyright (C) The IETF Trust (2007). 41 Abstract 43 This document defines Management Information Base (MIB) module for 44 use with network management protocols in TCP/IP based internets. 45 This document proposes an extension to the G.Bond MIB module with a 46 set of objects for managing multi-pair bonded xDSL interfaces using 47 Time-Division Inverse Multiplexing (TDIM), defined in ITU-T 48 recommendation G.998.3. 50 Table of Contents 52 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 53 2. The Internet-Standard Management Framework . . . . . . . . . . 3 54 3. The DSL Forum Management Framework for xDSL Bonding . . . . . 3 55 4. Relationship to other MIB modules . . . . . . . . . . . . . . 3 56 4.1. Relationship to Interfaces Group MIB module . . . . . . . 4 57 4.2. Relationship to G.Bond MIB module . . . . . . . . . . . . 4 58 4.3. Relationship to Other MIB modules . . . . . . . . . . . . 4 59 5. MIB Structure . . . . . . . . . . . . . . . . . . . . . . . . 4 60 5.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . 4 61 5.2. Protection Configuration . . . . . . . . . . . . . . . . . 4 62 5.3. Service Configuration . . . . . . . . . . . . . . . . . . 4 63 5.3.1. Management of TDM Services . . . . . . . . . . . . . . 5 64 5.4. Mapping of ITU-T G.998.3 Managed Objects . . . . . . . . . 5 65 5.5. Mapping of DSL Forum WT-159 Managed Objects . . . . . . . 7 66 6. G.Bond/TDIM MIB Definitions . . . . . . . . . . . . . . . . . 7 67 7. Security Considerations . . . . . . . . . . . . . . . . . . . 25 68 8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 26 69 9. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 26 70 10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 26 71 10.1. Normative References . . . . . . . . . . . . . . . . . . . 26 72 10.2. Informative References . . . . . . . . . . . . . . . . . . 27 74 1. Introduction 76 The Multi-pair bonding using time-division inverse multiplexing 77 (TDIM), a.k.a. G.Bond/TDIM, is specified in ITU-T G.998.3 78 recommendation [G.998.3], which defines a method for bonding (or 79 aggregating) of multiple xDSL lines into a single bi-directional 80 logical link carrying a mix of various traffic streams, e.g. 81 Ethernet, Asynchronous Transfer Mode (ATM), Time-Division 82 Multiplexing (TDM). 84 The MIB module, defined in this document, provides G.Bond/TDIM 85 specific objects for the management of G.998.3 bonded interfaces, 86 extending the common bonding objects specified in GBOND-MIB 87 [I-D.ietf-adslmib-gbond-mib] module. 89 2. The Internet-Standard Management Framework 91 For a detailed overview of the documents that describe the current 92 Internet-Standard Management Framework, please refer to section 7 of 93 RFC 3410 [RFC3410]. 95 Managed objects are accessed via a virtual information store, termed 96 the Management Information Base or MIB. MIB objects are generally 97 accessed through the Simple Network Management Protocol (SNMP). 98 Objects in the MIB are defined using the mechanisms defined in the 99 Structure of Management Information (SMI). This memo specifies a MIB 100 module that is compliant to the SMIv2, which is described in STD 58, 101 RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580 102 [RFC2580]. 104 The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", 105 "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this 106 document are to be interpreted as described in RFC 2119 [RFC2119]. 108 3. The DSL Forum Management Framework for xDSL Bonding 110 This document makes use of the DSL Forum technical report Management 111 Framework for xDSL Bonding [WT-159], defining a management model and 112 a hierarchy of management objects for the bonded xDSL interfaces. 114 4. Relationship to other MIB modules 116 This section outlines the relationship of the MIB modules defined in 117 this document with other MIB modules described in the relevant RFCs. 118 Specifically, the following MIB modules are discussed: Interfaces 119 Group MIB (IF-MIB) and G.Bond MIB (GBOND-MIB). 121 4.1. Relationship to Interfaces Group MIB module 123 A G.Bond/TDIM port is a private case of a Bonded multi-pair xDSL 124 interface and as such is managed using generic interface management 125 objects defined in the IF-MIB [RFC2863]. In particular an interface 126 index (ifIndex) is used to index instances of G.Bond/TDIM ports in a 127 system. 129 4.2. Relationship to G.Bond MIB module 131 GBOND-MIB [I-D.ietf-adslmib-gbond-mib] module defines management 132 objects common for all Bonded multi-pair xDSL interfaces. In 133 particular is describes the bonding management, port and channel 134 configuration, initialization sequence etc. 136 Both GBOND-MIB and GBOND-TDIM-MIB modules are REQUIRED to manage a 137 G.Bond/TDIM port. 139 4.3. Relationship to Other MIB modules 141 _EdNote: Add here services layering model and MIBs for ATM, Ethernet 142 and TDM services. _ 144 5. MIB Structure 146 5.1. Overview 148 _EdNote: TBC... _ 150 5.2. Protection Configuration 152 G.Bond/TDIM specification allows an optional Forward Error Correction 153 (FEC) and Interleaver block, which, if supported and enabled, 154 provides a degree of protection against micro-interruptions, alien 155 noise, and even individual Bonding Channel Entity (BCE) failures, 156 a.k.a. cut-line protection. 158 Management objects in the gBondTdimPortConfTable can be used to 159 configure and quiery the FEC and Interleaver function of the G.Bond/ 160 TDIM port. 162 5.3. Service Configuration 164 Unlike the other two xDSL Multi-Pair Bonding schemes (G.Bond/ATM and 165 G.Bond/Ethernet), which send the information required for reassembly 166 of the fragmented data along with the data, G.Bond/TDIM is a 167 synchronous scheme, requiring both ends to know the data distribution 168 tables before any actual data transfer can happen. 170 Management objects in the gBondTdimServiceTable can be used to 171 configure and quiery the configuration of services transported via 172 the G.Bond/TDIM link. The services may be configured when the link 173 is down prior to the link's initialization. The sum of all the 174 services' bandwidth SHOULD be less or equal to the target data rate 175 of the bonded link. Note that G.Bond/TDIM links are symmetrical, 176 i.e. their upstream data rate equals to the downstream data rate. 178 5.3.1. Management of TDM Services 180 G.Bond/TDIM protocol provides an ability to map TDM services into the 181 TDIM bonded link directly, without any additional overhead. It 182 addresses only structure-agnostic TDM transport, disregarding any 183 structure that may be imposed on these streams, in particular the 184 structure imposed by the standard TDM framing [G.704]. 186 _EdNote: Describe service allocation + conection with IfIndex of the 187 service ports, prioritization and notifications. Should we allow 188 dynamic service assignment while the G.Bond/TDIM link is up? Think 189 about Performance Monitoring for services. Think about common things 190 between G.Bond/TDIM and PWE3, may be there's a potential for reuse, 191 see PW-*-MIB modules in 192 http://www.ietf.org/html.charters/pwe3-charter.html _ 194 5.4. Mapping of ITU-T G.998.3 Managed Objects 196 This section contains the mapping between relevant managed objects 197 (attributes) defined in [G.998.3] and managed objects defined in this 198 document. 200 +------------------------+--------------------------------------+ 201 | G.998.3 Managed Object | Corresponding SNMP Object | 202 +------------------------+--------------------------------------+ 203 | oGroup | | 204 +------------------------+--------------------------------------+ 205 | aFECSupported | gBondTdimFecSupported | 206 +------------------------+--------------------------------------+ 207 | aFECAdminState | gBondTdimFecAdminState | 208 +------------------------+--------------------------------------+ 209 | aFECWordSize | gBondTdimFecWordSize | 210 +------------------------+--------------------------------------+ 211 | aFECRedundancySize | gBondTdimFecRedundancySize | 212 +------------------------+--------------------------------------+ 213 | aFECInterleaverType | gBondTdimFecInterleaverType | 214 +------------------------+--------------------------------------+ 215 | aFECInterleaverDepth | gBondTdimFecInterleaverDepth | 216 +------------------------+--------------------------------------+ 217 | aFECWordSize | gBondTdimFecMaxWordSize | 218 +------------------------+--------------------------------------+ 219 | aFECRedundancySize | gBondTdimFecMaxRedundancySize | 220 +------------------------+--------------------------------------+ 221 | aFECInterleaverType | gBondTdimFecInterleaverTypeSupported | 222 +------------------------+--------------------------------------+ 223 | aFECInterleaverDepth | gBondTdimFecMaxInterleaverDepth | 224 +------------------------+--------------------------------------+ 225 | aCRC4Errors | gBondTdimCrc4Errors | 226 +------------------------+--------------------------------------+ 227 | aCRC6Errors | gBondTdimCrc6Errors | 228 +------------------------+--------------------------------------+ 229 | aCRC8Errors | gBondTdimCrc8Errors | 230 +------------------------+--------------------------------------+ 231 | oService | | 232 +------------------------+--------------------------------------+ 233 | aServiceID | gBondTdimServiceIndex | 234 +------------------------+--------------------------------------+ 235 | aServiceType | gBondTdimServiceType | 236 +------------------------+--------------------------------------+ 237 | aServiceSize | gBondTdimServiceSize | 238 +------------------------+--------------------------------------+ 239 | TBC... | TBC... | 240 +------------------------+--------------------------------------+ 242 Table 1: Mapping of G.998.3 Managed Objects 244 _EdNote: Finish the table and remove TBC... _ 246 5.5. Mapping of DSL Forum WT-159 Managed Objects 248 This section contains the mapping between relevant managed objects 249 (attributes) defined in [WT-159] and managed objects defined in this 250 document. 252 +-----------------------+---------------------------+ 253 | WT-159 Managed Object | Corresponding SNMP Object | 254 +-----------------------+---------------------------+ 255 | aServiceIfIdx | gBondTdimServiceIfIdx | 256 +-----------------------+---------------------------+ 257 | TBC... | TBC... | 258 +-----------------------+---------------------------+ 260 Table 2: Mapping of WT-159 Managed Objects 262 _EdNote: Finish the table and remove TBC... make sure aServiceIfIdx 263 is in WT-159. _ 265 6. G.Bond/TDIM MIB Definitions 267 GBOND-TDIM-MIB DEFINITIONS ::= BEGIN 269 IMPORTS 270 MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, 271 Unsigned32, Counter32 272 FROM SNMPv2-SMI -- RFC 2578 273 TEXTUAL-CONVENTION, TruthValue 274 FROM SNMPv2-TC -- RFC 2579 275 MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP 276 FROM SNMPv2-CONF -- RFC 2580 277 ifIndex, InterfaceIndex 278 FROM IF-MIB -- RFC 2863 279 gBondMIB 280 FROM GBOND-MIB -- RFC YYYY 281 -- EdNote: Replace YYYY with the actual RFC number & 282 -- remove this note 283 ; 285 gBondTdimMIB MODULE-IDENTITY 286 LAST-UPDATED "200704290000Z" -- April 29, 2007 287 ORGANIZATION "IETF ADSL MIB Working Group" 288 CONTACT-INFO 289 "WG charter: 290 http://www.ietf.org/html.charters/adslmib-charter.html 292 Mailing Lists: 293 General Discussion: adslmib@ietf.org 294 To Subscribe: adslmib-request@ietf.org 295 In Body: subscribe your_email_address 297 Chair: Menachem Dodge 298 Postal: ECI Telecom, Ltd. 299 30 Hasivim St., 300 Petach-Tikva 49517 301 Israel 302 Phone: +972-3-926-8421 303 EMail: menachem.dodge@ecitele.com 305 Editor: Edward Beili 306 Postal: Actelis Networks, Inc. 307 25 Bazel St., P.O.B. 10173 308 Petach-Tikva 10173 309 Israel 310 Phone: +972-3-924-3491 311 EMail: edward.beili@actelis.com 313 Editor: Narendranath Nair 314 Postal: Wipro Technologies 315 Keonics Electronics City 316 Bangalore 560 100 317 India 318 Phone: +91-80-2852-0408 x85338 319 EMail: narendranath.nair@wipro.com" 321 DESCRIPTION 322 "The objects in this MIB module are used to manage the 323 multi-pair bonded xDSL Interfaces using time-division inverse 324 multiplexing (TDIM), defined in ITU-T recommendation G.998.3 325 (G.Bond/TDIM). 327 This MIB module MUST be used in conjunction with GBOND-MIB 328 module, common to all G.Bond technologies. 330 The following references are used throughout this MIB module: 332 [G.998.3] refers to: 333 ITU-T Recommendation G.998.1: 'Multi-pair bonding using 334 time-division inverse multiplexing', January 2005. 336 [WT-159] refers to: 337 DSL Forum Technical Report: 'Management Framework for xDSL 338 Bonding', January 2007. 340 Naming Conventions: 341 BCE - Bonding Channel Entity 342 CO - Central Office 343 CPE - Customer Premises Equipment 344 GBS - Generic Bonding Sublayer 345 SNR - Signal to Noise Ratio 347 Copyright (C) The Internet Society (2007). This version of this 348 MIB module is part of RFC XXXX; see the RFC itself for full 349 legal notices." 351 REVISION "200704290000Z" -- April 29, 2007 352 DESCRIPTION "Initial version, published as RFC XXXX." 354 -- EdNote: Replace XXXX with the actual RFC number & 355 -- remove this note 357 ::= { gBondMIB 3 } 359 -- Sections of the module 360 -- Structured as recommended by RFC 4181, Appendix D 362 gBondTdimObjects OBJECT IDENTIFIER ::= { gBondTdimMIB 1 } 364 gBondTdimConformance OBJECT IDENTIFIER ::= { gBondTdimMIB 2 } 366 -- Groups in the module 368 gBondTdimPort OBJECT IDENTIFIER ::= { gBondTdimObjects 1 } 370 -- Textual Conventions 372 GBondTdimServiceIndex ::= TEXTUAL-CONVENTION 373 DISPLAY-HINT "d" 374 STATUS current 375 DESCRIPTION 376 "A unique value, greater than zero, for each Service defined 377 in the managed G.Bond TDIM port, showing its relative position 378 inside the G.Bond/TDIM frame. 379 It is RECOMMENDED that values are assigned contiguously 380 starting from 1. The value for each Service MUST remain 381 constant at least from one re-initialization of the entity's 382 network management system to the next re-initialization." 383 SYNTAX Unsigned32 (1..60) 385 -- Port Notifications Group 387 gBondTdimPortNotifications OBJECT IDENTIFIER 388 ::= { gBondTdimPort 0 } 390 gBondTdimServiceUp NOTIFICATION-TYPE 391 OBJECTS { 392 -- ifIndex is not needed here since we are under specific GBS 393 gBondTdimServiceIfIdx, 394 gBondTdimServiceOperState 395 } 396 STATUS current 397 DESCRIPTION 398 "This notification indicates that a service indicated by the 399 gBondTdimServiceIfIdx in a particular G.Bond TDIM port' is 400 passing traffic. 402 This notification MAY be send for the G.Bond TDIM port, while 403 the port is Up, when the gBondTdimServiceOperState object has 404 left the Down state. 406 Generation of this notification is controlled by the 407 gBondTdimServiceUpDownEnable object." 408 ::= { gBondTdimPortNotifications 1 } 410 gBondTdimServiceDown NOTIFICATION-TYPE 411 OBJECTS { 412 -- ifIndex is not needed here since we are under specific GBS 413 gBondTdimServiceIfIdx, 414 gBondTdimServiceOperState 415 } 416 STATUS current 417 DESCRIPTION 418 "This notification indicates that a service indicated by the 419 gBondTdimServiceIfIdx in a particular G.Bond TDIM port' has 420 stopped passing the traffic. 422 This notification MAY be send for the G.Bond TDIM port, while 423 the port is Up, when the gBondTdimServiceOperState object has 424 entered the Down state. 426 Generation of this notification is controlled by the 427 gBondTdimServiceUpDownEnable object." 428 ::= { gBondTdimPortNotifications 2 } 430 -- G.Bond TDIM Port group 432 gBondTdimPortConfTable OBJECT-TYPE 433 SYNTAX SEQUENCE OF GBondTdimPortConfEntry 434 MAX-ACCESS not-accessible 435 STATUS current 436 DESCRIPTION 437 "Table for Configuration of G.Bond TDIM ports. Entries in 438 this table MUST be maintained in a persistent manner" 439 ::= { gBondTdimPort 1 } 441 gBondTdimPortConfEntry OBJECT-TYPE 442 SYNTAX GBondTdimPortConfEntry 443 MAX-ACCESS not-accessible 444 STATUS current 445 DESCRIPTION 446 "An entry in the G.Bond TDIM Port Configuration table. 447 Each entry represents an G.Bond TDIM port indexed by the 448 ifIndex. Additional conifguration parameters are available 449 via the gBondPortConfEntry of GBOND-MIB. 450 Note that an G.Bond TDIM port runs on top of a single or 451 multiple BCE port(s), which are also indexed by ifIndex." 452 INDEX { ifIndex } 453 ::= { gBondTdimPortConfTable 1 } 455 GBondTdimPortConfEntry ::= 456 SEQUENCE { 457 gBondTdimFecAdminState TruthValue, 458 gBondTdimFecWordSize Unsigned32, 459 gBondTdimFecRedundancySize Unsigned32, 460 gBondTdimFecInterleaverType INTEGER, 461 gBondTdimFecInterleaverDepth Unsigned32, 462 gBondTdimServiceUpDownEnable TruthValue 463 } 465 gBondTdimFecAdminState OBJECT-TYPE 466 SYNTAX TruthValue 467 MAX-ACCESS read-write 468 STATUS current 469 DESCRIPTION 470 "A desired state of the OPTIONAL Forward Error Correction 471 (FEC) function of the G.Bond TDIM port. 473 A value of 'false' indicates that the FEC function is 474 disabled. A value of 'true' indicates that the FEC SHALL be 475 enabled, if supported by the G.Bond TDIM port, as indicated 476 by the gBondTdimFecSupported object. 478 For the GBS-R ports, the value of this object cannot be 479 changed directly. This value may be changed as a result of 480 writing operation on the gBondTdimFecSupported object of a 481 remote GBS-C. 483 Modifications of this object MUST be performed when the link 484 is Down. 485 Attempts to change this object MUST be rejected (in case of 486 SNMP with the error inconsistentValue), if the link is Up or 487 Initializing or if it is an GBS-R. 489 This object MUST be maintained in a persistent manner. 491 This object maps to G.998.3 attribute aFECAdminState" 492 REFERENCE 493 "[G.998.3] Appendix II, B-X" 494 ::= { gBondTdimPortConfEntry 1 } 496 gBondTdimFecWordSize OBJECT-TYPE 497 SYNTAX Unsigned32(0|20..255) 498 UNITS "octets" 499 MAX-ACCESS read-write 500 STATUS current 501 DESCRIPTION 502 "A FEC code word size in octets for the G.Bond TDIM ports 503 supporting FEC function. 505 This object is read-write for the GBS-C ports and read-only 506 for the GBS-R. 508 A value of zero SHALL be returned if the FEC is disabled 509 (via gBondTdimFecAdminState) or not supported. 511 Changing of the FEC code word size MUST be performed when the 512 FEC enabled link is Down. Attempts to change this object MUST 513 be rejected (In case of SNMP with the error 514 inconsistentValue), if the link is Up or Initializing or the 515 FEC function is disabled/not supported. 517 This object MUST be maintained in a persistent manner. 519 This object maps to G.998.3 attribute aFECWordSize" 520 REFERENCE 521 "[G.998.3] Appendix II, B-XI" 522 ::= { gBondTdimPortConfEntry 2 } 524 gBondTdimFecRedundancySize OBJECT-TYPE 525 SYNTAX Unsigned32(0|2|4|8|16|20) 526 UNITS "octets" 527 MAX-ACCESS read-write 528 STATUS current 529 DESCRIPTION 530 "A FEC redundancy word size in octets for the G.Bond TDIM 531 ports supporting FEC function. 533 This object is read-write for the GBS-C ports and read-only 534 for the GBS-R. 536 A value of zero SHALL be returned if the FEC is disabled 537 (via gBondTdimFecAdminState) or not supported. 539 Changing of the FEC redundancy word size MUST be performed 540 when the FEC enabled link is Down. Attempts to change this 541 object MUST be rejected (In case of SNMP with the error 542 inconsistentValue), if the link is Up or Initializing or the 543 FEC function is disabled/not supported. 545 This object MUST be maintained in a persistent manner. 547 This object maps to G.998.3 attribute aFECRedundancySize" 548 REFERENCE 549 "[G.998.3] Appendix II, B-XII" 550 ::= { gBondTdimPortConfEntry 3 } 552 gBondTdimFecInterleaverType OBJECT-TYPE 553 SYNTAX INTEGER { 554 none(0), 555 block(1), 556 convolution(2) 557 } 558 MAX-ACCESS read-write 559 STATUS current 560 DESCRIPTION 561 "An Interleaver type for the G.Bond TDIM ports supporting 562 FEC function. 564 This object is read-write for the GBS-C ports and read-only 565 for the GBS-R. 567 A value of none(0) SHALL be returned if the FEC is disabled 568 (via gBondTdimFecAdminState) or not supported. 570 Changing of the Interleaver type MUST be performed when the 571 FEC enabled link is Down. Attempts to change this object MUST 572 be rejected (In case of SNMP with the error 573 inconsistentValue), if the link is Up or Initializing or the 574 FEC function is disabled/not supported. 576 This object MUST be maintained in a persistent manner. 578 This object maps to G.998.3 attribute aFECInterleaverType" 579 REFERENCE 580 "[G.998.3] Appendix II, B-XIII" 581 ::= { gBondTdimPortConfEntry 4 } 583 gBondTdimFecInterleaverDepth OBJECT-TYPE 584 SYNTAX Unsigned32(0|1|2|3|4|6|8|12|16|24|32|48|96) 585 MAX-ACCESS read-write 586 STATUS current 587 DESCRIPTION 588 "An Interleaver Depth for the G.Bond TDIM ports supporting 589 FEC function. 591 This object is read-write for the GBS-C ports and read-only 592 for the GBS-R. 594 A value of zero SHALL be returned if the FEC is disabled 595 (via gBondTdimFecAdminState) or not supported. 597 Changing of the Interleaver Depth MUST be performed when the 598 FEC enabled link is Down. Attempts to change this object MUST 599 be rejected (In case of SNMP with the error 600 inconsistentValue), if the link is Up or Initializing or the 601 FEC function is disabled/not supported. 603 This object MUST be maintained in a persistent manner. 605 This object maps to G.998.3 attribute aFECInterleaverDepth" 606 REFERENCE 607 "[G.998.3] Appendix II, B-XIV" 608 ::= { gBondTdimPortConfEntry 5 } 610 gBondTdimServiceUpDownEnable OBJECT-TYPE 611 SYNTAX TruthValue 612 MAX-ACCESS read-write 613 STATUS current 614 DESCRIPTION 615 "Indicates whether gBondTdimServiceUp and gBondTdimServiceDown 616 notifications should be generated for this interface. 618 Value of true(1) indicates that the notifications are enabled. 619 Value of false(2) indicates that the notifications are 620 disabled. 622 This object MUST be maintained in a persistent manner." 623 ::= { gBondTdimPortConfEntry 6 } 625 gBondTdimPortCapabilityTable OBJECT-TYPE 626 SYNTAX SEQUENCE OF GBondTdimPortCapabilityEntry 627 MAX-ACCESS not-accessible 628 STATUS current 629 DESCRIPTION 630 "Table for Capabilities of G.Bond TDIM ports. Entries in this 631 table MUST be maintained in a persistent manner" 632 ::= { gBondTdimPort 2 } 634 gBondTdimPortCapabilityEntry OBJECT-TYPE 635 SYNTAX GBondTdimPortCapabilityEntry 636 MAX-ACCESS not-accessible 637 STATUS current 638 DESCRIPTION 639 "An entry in the G.Bond TDIM port Capability table. 640 Each entry represents an G.Bond TDIM port indexed by the 641 ifIndex. Additional capabilities are available via the 642 gBondPortCapabilityEntry of GBOND-MIB. 643 Note that a G.Bond TDIM port runs on top of a single 644 or multiple BCE port(s), which are also indexed by ifIndex." 645 INDEX { ifIndex } 646 ::= { gBondTdimPortCapabilityTable 1 } 648 GBondTdimPortCapabilityEntry ::= 649 SEQUENCE { 650 gBondTdimFecSupported TruthValue, 651 gBondTdimFecMaxWordSize Unsigned32, 652 gBondTdimFecMaxRedundancySize Unsigned32, 653 gBondTdimFecInterleaverTypeSupported INTEGER, 654 gBondTdimFecMaxInterleaverDepth Unsigned32 655 } 657 gBondTdimFecSupported OBJECT-TYPE 658 SYNTAX TruthValue 659 MAX-ACCESS read-only 660 STATUS current 661 DESCRIPTION 662 "FEC and Interleaver Capability of the G.Bond/TDIM port. 663 This object has a value of true(1) when the port supports the 664 FEC and Interleaver function. 665 A value of false(2) is returned when the port does not 666 support the FEC and Interleaver function. 668 This object maps to the G.998.3 attribute aFECSupported." 669 REFERENCE 670 "[G.998.3] Appendix II, B-VI" 671 ::= { gBondTdimPortCapabilityEntry 1 } 673 gBondTdimFecMaxWordSize OBJECT-TYPE 674 SYNTAX Unsigned32(0|20..255) 675 UNITS "octets" 676 MAX-ACCESS read-only 677 STATUS current 678 DESCRIPTION 679 "A Maximum supported FEC code word size in octets for the 680 G.Bond TDIM ports with FEC function. 682 A value of zero SHALL be returned if the FEC is not supported. 684 This object partially maps to G.998.3 attribute aFECWordSize" 685 REFERENCE 686 "[G.998.3] Appendix II, B-XI" 687 ::= { gBondTdimPortCapabilityEntry 2 } 689 gBondTdimFecMaxRedundancySize OBJECT-TYPE 690 SYNTAX Unsigned32(0|2|4|8|16|20) 691 UNITS "octets" 692 MAX-ACCESS read-only 693 STATUS current 694 DESCRIPTION 695 "A Maximum supported FEC redundancy word size in octets for 696 the G.Bond TDIM ports with FEC function. 698 A value of zero SHALL be returned if the FEC is not supported. 700 This object partially maps to G.998.3 attribute 701 aFECRedundancySize" 702 REFERENCE 703 "[G.998.3] Appendix II, B-XII" 704 ::= { gBondTdimPortCapabilityEntry 3 } 706 gBondTdimFecInterleaverTypeSupported OBJECT-TYPE 707 SYNTAX INTEGER { 708 none(0), 709 block(1), 710 convolution(2), 711 blockConvolution(3) 712 } 713 MAX-ACCESS read-only 714 STATUS current 715 DESCRIPTION 716 "Suported Interleaver types for the G.Bond TDIM ports with 717 FEC function. 719 Possible values are: 720 none - the port does not support interleaving 721 block - the port supports Block Interleaver 722 convolution - the port supports Convolution Interleaver 723 blockConvolution - the port supports both Block and 724 Convolution Interleaver 726 This object partially maps to G.998.3 attribute 727 aFECInterleaverType" 728 REFERENCE 729 "[G.998.3] Appendix II, B-XIII" 730 ::= { gBondTdimPortCapabilityEntry 4 } 732 gBondTdimFecMaxInterleaverDepth OBJECT-TYPE 733 SYNTAX Unsigned32(0|1|2|3|4|6|8|12|16|24|32|48|96) 734 MAX-ACCESS read-only 735 STATUS current 736 DESCRIPTION 737 "A Maximum Interleaver Depth for the G.Bond TDIM ports with 738 FEC function. 740 A value of zero SHALL be returned if the Interleaver is not 741 supported. 743 This object partially maps to G.998.3 attribute 744 aFECInterleaverDepth" 745 REFERENCE 746 "[G.998.3] Appendix II, B-XIV" 747 ::= { gBondTdimPortCapabilityEntry 5 } 749 gBondTdimPortStatusTable OBJECT-TYPE 750 SYNTAX SEQUENCE OF GBondTdimPortStatusEntry 751 MAX-ACCESS not-accessible 752 STATUS current 753 DESCRIPTION 754 "This table provides overall status information of G.Bond 755 TDIM ports, complementing the generic status information from 756 the ifTable of IF-MIB and gBondFltStatus of GBOND-MIB. 757 Additional status information about connected BCEs is 758 available from the relevant line MIBs 760 This table contains live data from the equibcent. As such, 761 it is NOT persistent." 762 ::= { gBondTdimPort 3 } 764 gBondTdimPortStatusEntry OBJECT-TYPE 765 SYNTAX GBondTdimPortStatusEntry 766 MAX-ACCESS not-accessible 767 STATUS current 768 DESCRIPTION 769 "An entry in the G.Bond TDIM port Status table. 770 Each entry represents a G.Bond TDIM port indexed by the 771 ifIndex. 772 Note that an G.Bond GBS port runs on top of a single 773 or multiple BCE port(s), which are also indexed by ifIndex." 774 INDEX { ifIndex } 775 ::= { gBondTdimPortStatusTable 1 } 777 GBondTdimPortStatusEntry ::= 778 SEQUENCE { 779 gBondTdimCrc4Errors Counter32, 780 gBondTdimCrc6Errors Counter32, 781 gBondTdimCrc8Errors Counter32, 782 gBondTdimFltStatus BITS 783 } 785 gBondTdimCrc4Errors OBJECT-TYPE 786 SYNTAX Counter32 787 MAX-ACCESS read-only 788 STATUS current 789 DESCRIPTION 790 "The total number of CRC-4 errors (frame header error) on all 791 pairs in the G.Bond TDIM port. Simultaneous errors on M lines 792 SHOULD be counted M times. 794 This object maps to G.998.3 attribute aCRC4Errors. 796 Discontinuities in the value of this counter can occur at 797 re-initialization of the management system, and at other times 798 as indicated by the value of ifCounterDiscontinuityTime, 799 defined in IF-MIB." 800 REFERENCE 801 "[G.998.3] Appendix II, B-VII" 802 ::= { gBondTdimPortStatusEntry 1 } 804 gBondTdimCrc6Errors OBJECT-TYPE 805 SYNTAX Counter32 806 MAX-ACCESS read-only 807 STATUS current 808 DESCRIPTION 809 "The total number of CRC-6 errors (super-frame error) on all 810 pairs in the G.Bond TDIM port. Simultaneous errors on M lines 811 SHOULD be counted 1 time. 813 This object maps to G.998.3 attribute aCRC6Errors. 815 Discontinuities in the value of this counter can occur at 816 re-initialization of the management system, and at other times 817 as indicated by the value of ifCounterDiscontinuityTime, 818 defined in IF-MIB." 819 REFERENCE 820 "[G.998.3] Appendix II, B-VIII" 822 ::= { gBondTdimPortStatusEntry 2 } 824 gBondTdimCrc8Errors OBJECT-TYPE 825 SYNTAX Counter32 826 MAX-ACCESS read-only 827 STATUS current 828 DESCRIPTION 829 "The total number of CRC-8 errors (event/message error) on all 830 pairs in the G.Bond TDIM port. Simultaneous errors on M lines 831 SHOULD be counted M times. 833 This object maps to G.998.3 attribute aCRC8Errors. 835 Discontinuities in the value of this counter can occur at 836 re-initialization of the management system, and at other times 837 as indicated by the value of ifCounterDiscontinuityTime, 838 defined in IF-MIB." 839 REFERENCE 840 "[G.998.3] Appendix II, B-IX" 841 ::= { gBondTdimPortStatusEntry 3 } 843 gBondTdimFltStatus OBJECT-TYPE 844 SYNTAX BITS { 845 serviceDown(0), 846 wrongConfig(1) 847 } 848 MAX-ACCESS read-only 849 STATUS current 850 DESCRIPTION 851 "G.Bond TDIM port Fault Status. This is a bitmap of possible 852 conditions. The various bit positions are: 853 serviceDown - at least one of the services defined 854 for this aggregation group is down 855 (due to low rate). 856 wrongConfig - at least one BCE at the remote GBS-R 857 is already connected to another GBS. 859 This object is intended to supplement ifOperStatus object 860 in IF-MIB and gBondFltStatus in GBOND-MIB." 861 REFERENCE 862 "G.998.3 Section 6.3; 863 IF-MIB, ifOperStatus; GBOND-MIB, gBondFltStatus" 864 ::= { gBondTdimPortStatusEntry 4 } 866 gBondTdimServiceTable OBJECT-TYPE 867 SYNTAX SEQUENCE OF GBondTdimServiceEntry 868 MAX-ACCESS not-accessible 869 STATUS current 870 DESCRIPTION 871 "Table of Services in G.Bond TDIM ports. 872 Entries in this table MUST be maintained in a persistent 873 manner" 874 ::= { gBondTdimPort 4 } 876 gBondTdimServiceEntry OBJECT-TYPE 877 SYNTAX GBondTdimServiceEntry 878 MAX-ACCESS not-accessible 879 STATUS current 880 DESCRIPTION 881 "An entry in the G.Bond TDIM Port Service table, containing 882 the management information applicable to a particular Service 883 in a G.Bond TDIM port, indexed by the gBondTdimServiceIdx." 884 INDEX { gBondTdimServiceIdx } 885 ::= { gBondTdimServiceTable 1 } 887 GBondTdimServiceEntry ::= 888 SEQUENCE { 889 gBondTdimServiceIdx GBondTdimServiceIndex, 890 gBondTdimServiceIfIdx InterfaceIndex, 891 gBondTdimServiceType INTEGER, 892 gBondTdimServiceSize Unsigned32, 893 gBondTdimServiceOperState INTEGER 894 } 896 gBondTdimServiceIdx OBJECT-TYPE 897 SYNTAX GBondTdimServiceIndex 898 MAX-ACCESS not-accessible 899 STATUS current 900 DESCRIPTION 901 "G.Bond TDIM Service index - a unique index associated with 902 a particular service entry, indicating relative placement of 903 the service inside the G.Bond/TDIM frame. 905 There can be up to 60 services defined over TDIM bonded 906 facility. Services with lower indices have higher priority in 907 case of bandwidth degradation. 909 This objects maps to G.998.3 attribute aServiceID." 910 REFERENCE 911 "[G.998.3] Appendix II, C-I" 912 ::= { gBondTdimServiceEntry 1 } 914 gBondTdimServiceIfIdx OBJECT-TYPE 915 SYNTAX InterfaceIndex 916 MAX-ACCESS read-write 917 STATUS current 918 DESCRIPTION 919 "This is a unique index within the ifTable. It represents 920 the interface index of a service to be transmitted over the 921 G.Bond/TDIM service instance. 923 This objects maps to WT-159 attribute aServiceIfIndex." 924 REFERENCE 925 "[WT-159] ZZZ" 926 -- EdNote: update WT-159 and replace ZZZ and aServiceIfIndex 927 -- with exact references 928 ::= { gBondTdimServiceEntry 2 } 930 gBondTdimServiceType OBJECT-TYPE 931 SYNTAX INTEGER { 932 ds1(0), 933 e1(1), 934 nxds0(2), 935 nxe0(3), 936 ds3(4), 937 e3(5), 938 clock(6), 939 ethernet(7), 940 atm(8), 941 gfpNoFCS(9), 942 gfp(10) 943 } 944 MAX-ACCESS read-write 945 STATUS current 946 DESCRIPTION 947 "G.Bond TDIM Service Type. 949 Possible values are: 950 ds1 - Clear Channel DS1 (synchronous) 951 e1 - Clear Channel E1 (synchronous) 952 nxds0 - Fractional DS1 (synchronous) 953 nxe0 - Fractional E1 (synchronous) 954 ds3 - DS3 (synchronous) 955 e3 - E3 (synchronous) 956 clock - Clock transfer (synchronous) 957 ethernet - Ethernet (asynchronous) 958 atm - ATM (asynchronous) 959 gfpNoFCS - GFP encapsulated without FCS (asynchronous) 960 gfp - GFP encapsulated with FCS (asynchronous) 962 For the GBS-R ports, the value of this object cannot be 963 changed directly. This value may be changed as a result of 964 writing operation on the gBondTdimServiceType object of a 965 remote GBS-C. 967 Modifications of this object MUST be performed when the link 968 is Down. 969 Attempts to change this object MUST be rejected (in case of 970 SNMP with the error inconsistentValue), if the link is Up or 971 Initializing or if it is an GBS-R. 973 This object MUST be maintained in a persistent manner. 975 This object maps to G.998.3 attribute aServiceType" 976 REFERENCE 977 "[G.998.3] Appendix II, C-II" 978 ::= { gBondTdimServiceEntry 3 } 980 gBondTdimServiceSize OBJECT-TYPE 981 SYNTAX Unsigned32(0|20..255) 982 UNITS "octets" 983 MAX-ACCESS read-write 984 STATUS current 985 DESCRIPTION 986 "Service size in octets per bonding sub-block for a specific 987 service identified by gBondTdimServiceIdx. 989 For TDM (synchronous) services with variable size 990 e.g. fractional DS1/E1 - this object represents the number of 991 DS0/E0 channels. 992 For asynchronous services (Ethernet, ATM, GFPnoFCS or GFP) - 993 this object represents max. number of octets. 995 A GET operation returns current value. 996 A SET operation, allowed on GBS-C only when the link is Down, 997 changes the service size to the indicated value. If the link 998 is not down or the service type is fixed rate TDM service 999 (gBondTdimServiceType is NxDS0, NxE0, DS1, E1, DS3, E3 or 1000 Clock), the operation MUST be rejected (in case of SNMP with 1001 the error inconsistentValue). 1003 This object MUST be maintained in a persistent manner. 1005 This object maps to G.998.3 attribute aServiceSize" 1006 REFERENCE 1007 "[G.998.3] Appendix II, C-III" 1008 ::= { gBondTdimServiceEntry 4 } 1010 gBondTdimServiceOperState OBJECT-TYPE 1011 SYNTAX INTEGER { 1012 up(1), 1013 down(2) 1014 } 1015 MAX-ACCESS read-only 1016 STATUS current 1017 DESCRIPTION 1018 "G.Bond TDIM Service Operation State. 1020 Possible values are: 1021 up - Service is up passing traffic. 1022 down - Service is down, due to a variety of 1023 reasons, e.g. G.Bond TDIM port is 1024 down, current link bandwidth is too 1025 low to support a particular service, 1026 etc." 1027 REFERENCE 1028 "[G.998.3] 10.2.3" 1029 ::= { gBondTdimServiceEntry 5 } 1031 -- 1032 -- Conformance Statements 1033 -- 1035 gBondTdimGroups OBJECT IDENTIFIER 1036 ::= { gBondTdimConformance 1 } 1038 gBondTdimCompliances OBJECT IDENTIFIER 1039 ::= { gBondTdimConformance 2 } 1041 -- Object Groups 1043 gBondTdimBasicGroup OBJECT-GROUP 1044 OBJECTS { 1045 gBondTdimCrc4Errors, 1046 gBondTdimCrc6Errors, 1047 gBondTdimCrc8Errors, 1048 gBondTdimFecSupported, 1049 gBondTdimServiceIfIdx, 1050 gBondTdimServiceType, 1051 gBondTdimServiceSize, 1052 gBondTdimServiceOperState, 1053 gBondTdimServiceUpDownEnable, 1054 gBondTdimFltStatus 1055 } 1056 STATUS current 1057 DESCRIPTION 1058 "A collection of objects representing management information 1059 for G.Bond TDIM ports." 1061 ::= { gBondTdimGroups 1 } 1063 gBondTdimFecGroup OBJECT-GROUP 1064 OBJECTS { 1065 gBondTdimFecSupported, 1066 gBondTdimFecAdminState, 1067 gBondTdimFecWordSize, 1068 gBondTdimFecRedundancySize, 1069 gBondTdimFecInterleaverType, 1070 gBondTdimFecInterleaverDepth, 1071 gBondTdimFecMaxWordSize, 1072 gBondTdimFecMaxRedundancySize, 1073 gBondTdimFecInterleaverTypeSupported, 1074 gBondTdimFecMaxInterleaverDepth 1075 } 1076 STATUS current 1077 DESCRIPTION 1078 "A collection of objects supporting OPTIONAL Forward Error 1079 Correction (FEC) and Interleaver function in G.Bond TDIM 1080 ports." 1081 ::= { gBondTdimGroups 2 } 1083 gBondTdimAlarmConfGroup OBJECT-GROUP 1084 OBJECTS { 1085 gBondTdimServiceUpDownEnable 1086 } 1087 STATUS current 1088 DESCRIPTION 1089 "A collection of objects required for configuration of alarm 1090 thresholds and notifications in G.Bond TDIM ports." 1091 ::= { gBondTdimGroups 3 } 1093 gBondTdimNotificationGroup NOTIFICATION-GROUP 1094 NOTIFICATIONS { 1095 gBondTdimServiceUp, 1096 gBondTdimServiceDown 1097 } 1098 STATUS current 1099 DESCRIPTION 1100 "This group supports notifications of significant conditions 1101 associated with G.Bond TDIM ports." 1102 ::= { gBondTdimGroups 4 } 1104 -- Compliance Statements 1106 gBondTdimCompliance MODULE-COMPLIANCE 1107 STATUS current 1108 DESCRIPTION 1109 "The compliance statement for G.Bond TDIM interfaces. 1110 Compliance with the following external compliance statements 1111 is REQUIRED: 1113 MIB Module Compliance Statement 1114 ---------- -------------------- 1115 IF-MIB ifCompliance3 1116 GBOND-MIB gBondCompliance" 1118 MODULE -- this module 1119 MANDATORY-GROUPS { 1120 gBondTdimBasicGroup, 1121 gBondTdimAlarmConfGroup, 1122 gBondTdimNotificationGroup 1123 } 1125 GROUP gBondTdimFecGroup 1126 DESCRIPTION 1127 "Support for this group is only required for implementations 1128 supporting G.Bond FEC and Interleaver function." 1130 ::= { gBondTdimCompliances 1 } 1131 END 1133 7. Security Considerations 1135 There is a number of managed objects defined in the GBOND-TDIM-MIB 1136 module that have a MAX-ACCESS clause of read-write or read-create. 1137 Most objects are writeable only when the link is Down. Writing to 1138 these objects can have potentially disruptive effects on network 1139 operation, for example: 1141 o Changing of gBondTdimServiceTable configuration paratemers (e.g. 1142 gBondTdimServiceType or gBondTdimServiceSize) MAY lead to a 1143 potential service impairment, for example a TDM service would be 1144 dropped if there's not enough actual bandwidth on the bonded link 1145 to support this service. 1147 o Changing of gBondTdimPortConfTable configuration parameters (e.g. 1148 gBondTdimFecAdminState) MAY lead to anything from link quality and 1149 rate degradation to a complete link initialization failure. 1151 The user of the GBOND-TDIM-MIB module must therefore be aware that 1152 support for SET operations in a non-secure environment without proper 1153 protection can have a negative effect on network operations. 1155 The readable objects in the GBOND-TDIM-MIB module (i.e., those with 1156 MAX-ACCESS other than not-accessible) may be considered sensitive in 1157 some environments since, collectively, they provide information about 1158 the performance of network interfaces and can reveal some aspects of 1159 their configuration. 1161 In such environments it is important to control also GET and NOTIFY 1162 access to these objects and possibly even to encrypt their values 1163 when sending them over the network via SNMP. 1165 SNMP versions prior to SNMPv3 did not include adequate security. 1166 Even if the network itself is secure (for example by using IPSec), 1167 even then, there is no control as to who on the secure network is 1168 allowed to access and GET/SET (read/change/create/delete) the objects 1169 in this MIB module. 1171 It is RECOMMENDED that implementers consider the security features as 1172 provided by the SNMPv3 framework (see [RFC3410], section 8), 1173 including full support for the SNMPv3 cryptographic mechanisms (for 1174 authentication and privacy). 1176 Further, deployment of SNMP versions prior to SNMPv3 is NOT 1177 RECOMMENDED. Instead, it is RECOMMENDED to deploy SNMPv3 and to 1178 enable cryptographic security. It is then a customer/operator 1179 responsibility to ensure that the SNMP entity giving access to an 1180 instance of this MIB module is properly configured to give access to 1181 the objects only to those principals (users) that have legitimate 1182 rights to indeed GET or SET (change/create/delete) them. 1184 8. IANA Considerations 1186 A new IANAifType value of g9983 SHALL be defined by the IANA [1] in 1187 the IANAifType-MIB module [IANAifType-MIB], before this document is 1188 published as an RFC. 1190 9. Acknowledgments 1192 This document was produced by the IETF ADSL MIB Working Group [2]. 1194 10. References 1196 10.1. Normative References 1198 [G.998.3] ITU-T, "Multi-pair bonding using time- 1199 division inverse multiplexing", ITU-T 1200 Recommendation G.998.3, January 2005. 1202 [RFC2119] Bradner, S., "Key words for use in RFCs 1203 to Indicate Requirement Levels", 1204 BCP 14, RFC 2119, March 1997. 1206 [RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., 1207 and J. Schoenwaelder, Ed., "Structure 1208 of Management Information Version 2 1209 (SMIv2)", STD 58, RFC 2578, April 1999. 1211 [RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., 1212 and J. Schoenwaelder, Ed., "Textual 1213 Conventions for SMIv2", STD 58, 1214 RFC 2579, April 1999. 1216 [RFC2580] McCloghrie, K., Perkins, D., and J. 1217 Schoenwaelder, "Conformance Statements 1218 for SMIv2", STD 58, RFC 2580, 1219 April 1999. 1221 [RFC3410] Case, J., Mundy, R., Partain, D., and 1222 B. Stewart, "Introduction and 1223 Applicability Statements for Internet- 1224 Standard Management Framework", 1225 RFC 3410, December 2002. 1227 [WT-159] Morgenstern, M., Beili, E., and N. 1228 Nair, "Management Framework for xDSL 1229 Bonding", DSL Forum technical 1230 report WT-159, Jan 2007. 1232 10.2. Informative References 1234 [G.704] ITU-T, "Synchronous frame structures 1235 used at 1544, 6312, 2048, 8448 and 1236 44736 Kbit/s hierarchical levels.", 1237 ITU-T Recommendation G.704, 1238 October 1998. 1240 [I-D.ietf-adslmib-gbond-mib] Beili, E., Morgenstern, M., and N. 1241 Nair, "xDSL multi-pair bonding (G.Bond) 1242 MIB", draft-ietf-adslmib-gbond-mib-00 1243 (work in progress), February 2007. 1245 [IANAifType-MIB] Internet Assigned Numbers Authority 1246 (IANA), "IANAifType Textual Convention 1247 definition", http://www.iana.org/ 1248 assignments/ianaiftype-mib. 1250 [RFC2863] McCloghrie, K. and F. Kastenholz, "The 1251 Interfaces Group MIB", RFC 2863, 1252 June 2000. 1254 URIs 1256 [1] 1258 [2] 1260 Authors' Addresses 1262 Edward Beili 1263 Actelis Networks 1264 25 Bazel St. 1265 Petach-Tikva 49103 1266 Israel 1268 Phone: +972-3-924-3491 1269 EMail: edward.beili@actelis.com 1271 Narendranath Nair 1272 Wipro Technologies 1273 Keonics Electronics City 1274 Bangalore 560 100 1275 India 1277 Phone: +91-80-2852-0408 x85338 1278 EMail: narendranath.nair@wipro.com 1280 Full Copyright Statement 1282 Copyright (C) The IETF Trust (2007). 1284 This document is subject to the rights, licenses and restrictions 1285 contained in BCP 78, and except as set forth therein, the authors 1286 retain all their rights. 1288 This document and the information contained herein are provided on an 1289 "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS 1290 OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND 1291 THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS 1292 OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF 1293 THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED 1294 WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 1296 Intellectual Property 1298 The IETF takes no position regarding the validity or scope of any 1299 Intellectual Property Rights or other rights that might be claimed to 1300 pertain to the implementation or use of the technology described in 1301 this document or the extent to which any license under such rights 1302 might or might not be available; nor does it represent that it has 1303 made any independent effort to identify any such rights. Information 1304 on the procedures with respect to rights in RFC documents can be 1305 found in BCP 78 and BCP 79. 1307 Copies of IPR disclosures made to the IETF Secretariat and any 1308 assurances of licenses to be made available, or the result of an 1309 attempt made to obtain a general license or permission for the use of 1310 such proprietary rights by implementers or users of this 1311 specification can be obtained from the IETF on-line IPR repository at 1312 http://www.ietf.org/ipr. 1314 The IETF invites any interested party to bring to its attention any 1315 copyrights, patents or patent applications, or other proprietary 1316 rights that may cover technology that may be required to implement 1317 this standard. Please address the information to the IETF at 1318 ietf-ipr@ietf.org. 1320 Acknowledgement 1322 Funding for the RFC Editor function is provided by the IETF 1323 Administrative Support Activity (IASA).