IETF 88 ISIS WG1draft-li-isis-mrt-00 Zhenbin Li, Nan Wu, Quintin Zhao (Huawei) Alia Atlas, Chris Bowers(Juniper) Jeff Tantsura(Ericsson) IETF 88, Vancouver,

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Presentation transcript:

IETF 88 ISIS WG1draft-li-isis-mrt-00 Zhenbin Li, Nan Wu, Quintin Zhao (Huawei) Alia Atlas, Chris Bowers(Juniper) Jeff Tantsura(Ericsson) IETF 88, Vancouver, Canada ISIS Extensions for MRT

IETF 88 ISIS WG2draft-li-isis-mrt-00 Outline: Discussing ISIS-MRT Draft Overview of ISIS-MRT IS-IS extension for MRT Capability IS-IS extension advertising & parsing Next step

IETF 88 ISIS WG3draft-li-isis-mrt-00 Overview of ISIS-MRT MRT Capability advertisement  Default profile: A new M-bit introduced into MT-TLV(229).  Non-default profile: A new Sub-TLV planned. Electing GADAG root  An unique root must be chosed for MRT domain.  One priority is planned for each MRT node.  Root is chosed based on priority comparing.

IETF 88 ISIS WG4draft-li-isis-mrt-00 Overview of ISIS-MRT MRT Ineligible link advertisement  Option is provided for certain links do not involved into MRT.  A new Sub-TLV is planned for these links. MRT computation trigger  Topology changes  MRT Capability changes

IETF 88 ISIS WG5draft-li-isis-mrt-00 Outline: Discussing ISIS-MRT Draft Overview of ISIS-MRT IS-IS extension for MRT Capability IS-IS extension advertising & parsing Next step

IETF 88 ISIS WG6draft-li-isis-mrt-00 IS-IS extension for MRT Capability No. of Octets |O |A |M |R | MT ID | M-bit in MT-TLV(229) is used to identify MRT-Capable for default profile. Multiple MT support MRT can have its corresponding M- bit SET. MT-TLV is carried in LSP #0 fragment. MRT-Capability can be updated soon when it changed.

IETF 88 ISIS WG7draft-li-isis-mrt-00 IS-IS extension for MRT Capability Sub-TLV is planned in Router CAPABILITY TLV(242) to advertise MRT profile. Extra MRT Blue&Red MT ID is used for customized profile. Multi-instance of Sub-TLV are used to advertise supporting for multiple MRT profile. No. of Octets |R |R |R |R | MT ID | | Profile ID | | Priority | | MRT-Blue MT ID | | MRT-Red MT ID |

IETF 88 ISIS WG8draft-li-isis-mrt-00 IS-IS extension for MRT Capability Profile ID is in range [0, 255] with zero as the default profile. Priority is in range [0, 255] with 128 as the default priority. Biggest value win as the root with system-Id as tie- breaker. Non-zero Blue&Red MT ID will overwrite the two ID defined in profile. No. of Octets |R |R |R |R | MT ID | | Profile ID | | Priority | | MRT-Blue MT ID | | MRT-Red MT ID |

IETF 88 ISIS WG9draft-li-isis-mrt-00 IS-IS extension for MRT Capability Sub-TLV is planned in Router CAPABILITY TLV(242) to advertise MRT Ineligible Links. IS-IS links are described as IS Reachability without IP info. Multi-instance of Sub-TLV are allowed. If ineligible-link split MRT Island then need to trigger new computation. No. of Octets |R |R |R |R | MT ID | |System ID and pseudo-node number | | Default metric | |System ID and pseudo-node number | | Default metric |

IETF 88 ISIS WG10draft-li-isis-mrt-00 Outline: Discussing ISIS-MRT Draft Overview of ISIS-MRT IS-IS extension for MRT Capability IS-IS extension advertising & parsing Next step

IETF 88 ISIS WG11draft-li-isis-mrt-00 IS-IS extension advertising & parsing MRT should not affect normal IS-IS behavior. MRT info should be ignored if not recognized. MRT info is in level scope. Default MRT profile can be carried MT-TLV in LSP #0 fragment(M-bit). Capability & Ineligible Sub-TLV is optional and carried in Router Capability TLV(242). Multi-instance of MRT is allowed. But care that Blue & Red MT-ID should not conflict in different profile.

IETF 88 ISIS WG12draft-li-isis-mrt-00 Next step Comments and suggestion are welcomed for this draft. Request to be accepted as WG draft.