Deprecation of MIB Module NAT-MIB: Managed Objects for Network Address Translators (NATs)
RFC 7658
Document | Type |
RFC
- Proposed Standard
(October 2015)
Obsoletes RFC 4008
Was
draft-perrault-behave-deprecate-nat-mib-v1
(individual)
|
|
---|---|---|---|
Authors | Simon Perreault , Tina Tsou (Ting ZOU) , Senthil Sivakumar , Tom Taylor | ||
Last updated | 2018-12-20 | ||
RFC stream | Internet Engineering Task Force (IETF) | ||
Formats | |||
IESG | Responsible AD | Spencer Dawkins | |
Send notices to | (None) |
RFC 7658
quot;RFC 7658, RFC 7659" ::= { natProtocolEntry 4 } -- -- Notifications section -- natMIBNotifications OBJECT IDENTIFIER ::= { natMIB 0 } -- -- Notifications -- natPacketDiscard NOTIFICATION-TYPE OBJECTS { ifIndex } STATUS deprecated DESCRIPTION "This notification is generated when IP packets are discarded by the NAT function; e.g., due to lack of mapping space when NAT is out of addresses or ports. Note that the generation of natPacketDiscard notifications is throttled by the agent, as specified by the 'natNotifThrottlingInterval' object. Deprecated in favor of NATV2-MIB." REFERENCE "RFC 7658, RFC 7659" ::= { natMIBNotifications 1 } Perreault, et al. Standards Track [Page 48] RFC 7658 Deprecation of NAT-MIB v1 October 2015 -- -- Conformance information. -- natMIBConformance OBJECT IDENTIFIER ::= { natMIB 2 } natMIBGroups OBJECT IDENTIFIER ::= { natMIBConformance 1 } natMIBCompliances OBJECT IDENTIFIER ::= { natMIBConformance 2 } -- -- Units of conformance -- natConfigGroup OBJECT-GROUP OBJECTS { natInterfaceRealm, natInterfaceServiceType, natInterfaceStorageType, natInterfaceRowStatus, natAddrMapName, natAddrMapEntryType, natAddrMapTranslationEntity, natAddrMapLocalAddrType, natAddrMapLocalAddrFrom, natAddrMapLocalAddrTo, natAddrMapLocalPortFrom, natAddrMapLocalPortTo, natAddrMapGlobalAddrType, natAddrMapGlobalAddrFrom, natAddrMapGlobalAddrTo, natAddrMapGlobalPortFrom, natAddrMapGlobalPortTo, natAddrMapProtocol, natAddrMapStorageType, natAddrMapRowStatus, natBindDefIdleTimeout, natUdpDefIdleTimeout, natIcmpDefIdleTimeout, natOtherDefIdleTimeout, natTcpDefIdleTimeout, natTcpDefNegTimeout, natNotifThrottlingInterval } STATUS deprecated DESCRIPTION "A collection of configuration-related information required to support management of devices supporting NAT. Deprecated in favor of NATV2-MIB." REFERENCE "RFC 7658, RFC 7659" Perreault, et al. Standards Track [Page 49] RFC 7658 Deprecation of NAT-MIB v1 October 2015 ::= { natMIBGroups 1 } natTranslationGroup OBJECT-GROUP OBJECTS { natAddrBindNumberOfEntries, natAddrBindGlobalAddrType, natAddrBindGlobalAddr, natAddrBindId, natAddrBindTranslationEntity, natAddrBindType, natAddrBindMapIndex, natAddrBindSessions, natAddrBindMaxIdleTime, natAddrBindCurrentIdleTime, natAddrBindInTranslates, natAddrBindOutTranslates, natAddrPortBindNumberOfEntries, natAddrPortBindGlobalAddrType, natAddrPortBindGlobalAddr, natAddrPortBindGlobalPort, natAddrPortBindId, natAddrPortBindTranslationEntity, natAddrPortBindType, natAddrPortBindMapIndex, natAddrPortBindSessions, natAddrPortBindMaxIdleTime, natAddrPortBindCurrentIdleTime, natAddrPortBindInTranslates, natAddrPortBindOutTranslates, natSessionPrivateSrcEPBindId, natSessionPrivateSrcEPBindMode, natSessionPrivateDstEPBindId, natSessionPrivateDstEPBindMode, natSessionDirection, natSessionUpTime, natSessionAddrMapIndex, natSessionProtocolType, natSessionPrivateAddrType, natSessionPrivateSrcAddr, natSessionPrivateSrcPort, natSessionPrivateDstAddr, natSessionPrivateDstPort, natSessionPublicAddrType, natSessionPublicSrcAddr, natSessionPublicSrcPort, natSessionPublicDstAddr, natSessionPublicDstPort, natSessionMaxIdleTime, natSessionCurrentIdleTime, Perreault, et al. Standards Track [Page 50] RFC 7658 Deprecation of NAT-MIB v1 October 2015 natSessionInTranslates, natSessionOutTranslates } STATUS deprecated DESCRIPTION "A collection of BIND-related objects required to support management of devices supporting NAT. Deprecated in favor of NATV2-MIB." REFERENCE "RFC 7658, RFC 7659" ::= { natMIBGroups 2 } natStatsInterfaceGroup OBJECT-GROUP OBJECTS { natInterfaceInTranslates, natInterfaceOutTranslates, natInterfaceDiscards } STATUS deprecated DESCRIPTION "A collection of NAT statistics associated with the interface on which NAT is configured, to aid troubleshooting/monitoring of the NAT operation. Deprecated in favor of NATV2-MIB." REFERENCE "RFC 7658, RFC 7659" ::= { natMIBGroups 3 } natStatsProtocolGroup OBJECT-GROUP OBJECTS { natProtocolInTranslates, natProtocolOutTranslates, natProtocolDiscards } STATUS deprecated DESCRIPTION "A collection of protocol-specific NAT statistics, to aid troubleshooting/monitoring of NAT operation. Deprecated in favor of NATV2-MIB." REFERENCE "RFC 7658, RFC 7659" ::= { natMIBGroups 4 } natStatsAddrMapGroup OBJECT-GROUP OBJECTS { natAddrMapInTranslates, natAddrMapOutTranslates, natAddrMapDiscards, natAddrMapAddrUsed } STATUS deprecated DESCRIPTION "A collection of address-map-specific NAT statistics, to aid troubleshooting/monitoring of NAT operation. Deprecated in favor of NATV2-MIB." REFERENCE "RFC 7658, RFC 7659" ::= { natMIBGroups 5 } Perreault, et al. Standards Track [Page 51] RFC 7658 Deprecation of NAT-MIB v1 October 2015 natMIBNotificationGroup NOTIFICATION-GROUP NOTIFICATIONS { natPacketDiscard } STATUS deprecated DESCRIPTION "A collection of notifications generated by devices supporting this MIB. Deprecated in favor of NATV2-MIB." REFERENCE "RFC 7658, RFC 7659" ::= { natMIBGroups 6 } -- -- Compliance statements -- natMIBFullCompliance MODULE-COMPLIANCE STATUS deprecated DESCRIPTION "When this MIB is implemented with support for read-create, then such an implementation can claim full compliance. Such devices can then be both monitored and configured with this MIB. The following index objects cannot be added as OBJECT clauses but nevertheless have the compliance requirements: Deprecated in favor of NATV2-MIB." REFERENCE "RFC 7658, RFC 7659" -- OBJECT natAddrBindLocalAddrType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- DESCRIPTION -- "An implementation is required to support -- global IPv4 and/or IPv6 addresses, depending -- on its support for IPv4 and IPv6." -- OBJECT natAddrBindLocalAddr -- SYNTAX InetAddress (SIZE(4|16)) -- DESCRIPTION -- "An implementation is required to support -- global IPv4 and/or IPv6 addresses, depending -- on its support for IPv4 and IPv6." -- OBJECT natAddrPortBindLocalAddrType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- DESCRIPTION -- "An implementation is required to support -- global IPv4 and/or IPv6 addresses, depending -- on its support for IPv4 and IPv6." Perreault, et al. Standards Track [Page 52] RFC 7658 Deprecation of NAT-MIB v1 October 2015 -- OBJECT natAddrPortBindLocalAddr -- SYNTAX InetAddress (SIZE(4|16)) -- DESCRIPTION -- "An implementation is required to support -- global IPv4 and/or IPv6 addresses, depending -- on its support for IPv4 and IPv6." MODULE IF-MIB -- The interfaces MIB, RFC2863 MANDATORY-GROUPS { ifCounterDiscontinuityGroup } MODULE -- this module MANDATORY-GROUPS { natConfigGroup, natTranslationGroup, natStatsInterfaceGroup } GROUP natStatsProtocolGroup DESCRIPTION "This group is optional." GROUP natStatsAddrMapGroup DESCRIPTION "This group is optional." GROUP natMIBNotificationGroup DESCRIPTION "This group is optional." OBJECT natAddrMapLocalAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrMapLocalAddrFrom SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrMapLocalAddrTo SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrMapGlobalAddrType Perreault, et al. Standards Track [Page 53] RFC 7658 Deprecation of NAT-MIB v1 October 2015 SYNTAX InetAddressType { ipv4(1), ipv6(2) } DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrMapGlobalAddrFrom SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrMapGlobalAddrTo SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrBindGlobalAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrBindGlobalAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrPortBindGlobalAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrPortBindGlobalAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." Perreault, et al. Standards Track [Page 54] RFC 7658 Deprecation of NAT-MIB v1 October 2015 OBJECT natSessionPrivateAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPrivateSrcAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPrivateDstAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPublicAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPublicSrcAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPublicDstAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." ::= { natMIBCompliances 1 } natMIBReadOnlyCompliance MODULE-COMPLIANCE STATUS deprecated DESCRIPTION Perreault, et al. Standards Track [Page 55] RFC 7658 Deprecation of NAT-MIB v1 October 2015 "When this MIB is implemented without support for read-create (i.e., in read-only mode), then such an implementation can claim read-only compliance. Such a device can then be monitored but cannot be configured with this MIB. The following index objects cannot be added as OBJECT clauses but nevertheless have the compliance requirements: Deprecated in favor of NATV2-MIB." REFERENCE "RFC 7658, RFC 7659" -- OBJECT natAddrBindLocalAddrType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- DESCRIPTION -- "An implementation is required to support -- global IPv4 and/or IPv6 addresses, depending -- on its support for IPv4 and IPv6." -- OBJECT natAddrBindLocalAddr -- SYNTAX InetAddress (SIZE(4|16)) -- DESCRIPTION -- "An implementation is required to support -- global IPv4 and/or IPv6 addresses, depending -- on its support for IPv4 and IPv6." -- OBJECT natAddrPortBindLocalAddrType -- SYNTAX InetAddressType { ipv4(1), ipv6(2) } -- DESCRIPTION -- "An implementation is required to support -- global IPv4 and/or IPv6 addresses, depending -- on its support for IPv4 and IPv6." -- OBJECT natAddrPortBindLocalAddr -- SYNTAX InetAddress (SIZE(4|16)) -- DESCRIPTION -- "An implementation is required to support -- global IPv4 and/or IPv6 addresses, depending -- on its support for IPv4 and IPv6." MODULE IF-MIB -- The interfaces MIB, RFC 2863 MANDATORY-GROUPS { ifCounterDiscontinuityGroup } MODULE -- this module MANDATORY-GROUPS { natConfigGroup, natTranslationGroup, natStatsInterfaceGroup } Perreault, et al. Standards Track [Page 56] RFC 7658 Deprecation of NAT-MIB v1 October 2015 GROUP natStatsProtocolGroup DESCRIPTION "This group is optional." GROUP natStatsAddrMapGroup DESCRIPTION "This group is optional." GROUP natMIBNotificationGroup DESCRIPTION "This group is optional." OBJECT natInterfaceRowStatus SYNTAX RowStatus { active(1) } MIN-ACCESS read-only DESCRIPTION "Write access is not required, and active is the only status that needs to be supported." OBJECT natAddrMapLocalAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } MIN-ACCESS read-only DESCRIPTION "Write access is not required. An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrMapLocalAddrFrom SYNTAX InetAddress (SIZE(4|16)) MIN-ACCESS read-only DESCRIPTION "Write access is not required. An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrMapLocalAddrTo SYNTAX InetAddress (SIZE(4|16)) MIN-ACCESS read-only DESCRIPTION "Write access is not required. An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrMapGlobalAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } MIN-ACCESS read-only DESCRIPTION "Write access is not required. An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." Perreault, et al. Standards Track [Page 57] RFC 7658 Deprecation of NAT-MIB v1 October 2015 OBJECT natAddrMapGlobalAddrFrom SYNTAX InetAddress (SIZE(4|16)) MIN-ACCESS read-only DESCRIPTION "Write access is not required. An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrMapGlobalAddrTo SYNTAX InetAddress (SIZE(4|16)) MIN-ACCESS read-only DESCRIPTION "Write access is not required. An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrMapRowStatus SYNTAX RowStatus { active(1) } MIN-ACCESS read-only DESCRIPTION "Write access is not required, and active is the only status that needs to be supported." OBJECT natAddrBindGlobalAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrBindGlobalAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrPortBindGlobalAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natAddrPortBindGlobalAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 Perreault, et al. Standards Track [Page 58] RFC 7658 Deprecation of NAT-MIB v1 October 2015 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPrivateAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPrivateSrcAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPrivateDstAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPublicAddrType SYNTAX InetAddressType { ipv4(1), ipv6(2) } DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPublicSrcAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." OBJECT natSessionPublicDstAddr SYNTAX InetAddress (SIZE(4|16)) DESCRIPTION "An implementation is required to support global IPv4 and/or IPv6 addresses, depending on its support for IPv4 and IPv6." ::= { natMIBCompliances 2 } END Perreault, et al. Standards Track [Page 59] RFC 7658 Deprecation of NAT-MIB v1 October 2015 5. Security Considerations All objects in this MIB module have been deprecated. As a result, the security considerations in [RFC7659] apply instead. Amongst other matters, these considerations cover the case where both this MIB module and NATV2-MIB are present. In fact, such a situation is unlikely because [RFC4008], as a MIB module oriented toward configuration, was overtaken by events and saw little implementation. 6. IANA Considerations IANA has assigned object identifier 123 to the natMIB module, with prefix iso.org.dod.internet.mgmt.mib-2 in the Network Management Parameters registry [SMI-NUMBERS]. IANA has marked that identifier as DEPRECATED and updated the reference from [RFC4008] to the present document. 7. References 7.1. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, <http://www.rfc-editor.org/info/rfc2119>. [RFC2578] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Structure of Management Information Version 2 (SMIv2)", STD 58, RFC 2578, DOI 10.17487/RFC2578, April 1999, <http://www.rfc-editor.org/info/rfc2578>. [RFC2579] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Textual Conventions for SMIv2", STD 58, RFC 2579, DOI 10.17487/RFC2579, April 1999, <http://www.rfc-editor.org/info/rfc2579>. [RFC2580] McCloghrie, K., Ed., Perkins, D., Ed., and J. Schoenwaelder, Ed., "Conformance Statements for SMIv2", STD 58, RFC 2580, DOI 10.17487/RFC2580, April 1999, <http://www.rfc-editor.org/info/rfc2580>. [RFC3411] Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for Describing Simple Network Management Protocol (SNMP) Management Frameworks", STD 62, RFC 3411, DOI 10.17487/RFC3411, December 2002, <http://www.rfc-editor.org/info/rfc3411>. Perreault, et al. Standards Track [Page 60] RFC 7658 Deprecation of NAT-MIB v1 October 2015 [RFC4001] Daniele, M., Haberman, B., Routhier, S., and J. Schoenwaelder, "Textual Conventions for Internet Network Addresses", RFC 4001, DOI 10.17487/RFC4001, February 2005, <http://www.rfc-editor.org/info/rfc4001>. [RFC7659] Perreault, S., Tsou, T., Sivakumar, S., and T. Taylor, "Definitions of Managed Objects for Network Address Translators (NATs)", RFC 7659, DOI 10.17487/RFC7659, October 2015, <http://www.rfc-editor.org/info/rfc7659>. 7.2. Informative References [RFC792] Postel, J., "Internet Control Message Protocol", STD 5, RFC 792, DOI 10.17487/RFC0792, September 1981, <http://www.rfc-editor.org/info/rfc792>. [RFC2663] Srisuresh, P. and M. Holdrege, "IP Network Address Translator (NAT) Terminology and Considerations", RFC 2663, DOI 10.17487/RFC2663, August 1999, <http://www.rfc-editor.org/info/rfc2663>. [RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB", RFC 2863, DOI 10.17487/RFC2863, June 2000, <http://www.rfc-editor.org/info/rfc2863>. [RFC3022] Srisuresh, P. and K. Egevang, "Traditional IP Network Address Translator (Traditional NAT)", RFC 3022, DOI 10.17487/RFC3022, January 2001, <http://www.rfc-editor.org/info/rfc3022>. [RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction and Applicability Statements for Internet- Standard Management Framework", RFC 3410, DOI 10.17487/RFC3410, December 2002, <http://www.rfc-editor.org/info/rfc3410>. [RFC3413] Levi, D., Meyer, P., and B. Stewart, "Simple Network Management Protocol (SNMP) Applications", STD 62, RFC 3413, DOI 10.17487/RFC3413, December 2002, <http://www.rfc-editor.org/info/rfc3413>. [RFC4008] Rohit, R., Srisuresh, P., Raghunarayan, R., Pai, N., and C. Wang, "Definitions of Managed Objects for Network Address Translators (NAT)", RFC 4008, DOI 10.17487/RFC4008, March 2005, <http://www.rfc-editor.org/info/rfc4008>. Perreault, et al. Standards Track [Page 61] RFC 7658 Deprecation of NAT-MIB v1 October 2015 [RFC4443] Conta, A., Deering, S., and M. Gupta, Ed., "Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification", RFC 4443, DOI 10.17487/RFC4443, March 2006, <http://www.rfc-editor.org/info/rfc4443>. [SMI-NUMBERS] IANA, "Structure of Management Information (SMI) Numbers (MIB Module Registrations)", <http://www.iana.org/assignments/smi-numbers>. Authors' Addresses Simon Perreault Jive Communications Quebec, QC Canada Email: sperreault@jive.com Tina Tsou Huawei Technologies Bantian, Longgang District Shenzhen 518129 China Email: tina.tsou.zouting@huawei.com Senthil Sivakumar Cisco Systems 7100-8 Kit Creek Road Research Triangle Park, North Carolina 27709 United States Phone: +1 919 392 5158 Email: ssenthil@cisco.com Tom Taylor PT Taylor Consulting Ottawa Canada Email: tom.taylor.stds@gmail.com Perreault, et al. Standards Track [Page 62]