[spring] https://tools.ietf.org/html/draft-ietf-lsr-flex-algo-08 (OSPFv2 flex algo)

Rajesh M <mrajesh@juniper.net> Fri, 07 August 2020 04:03 UTC

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From: Rajesh M <mrajesh@juniper.net>
To: Peter Psenak <ppsenak@cisco.com>, Shraddha Hegde <shraddha@juniper.net>, "cfilsfil@cisco.com" <cfilsfil@cisco.com>, "ketant@cisco.com" <ketant@cisco.com>, "Gulko, Arkadiy (Refinitiv)" <arkadiy.gulko@refinitiv.com>
CC: SPRING WG <spring@ietf.org>
Thread-Topic: https://tools.ietf.org/html/draft-ietf-lsr-flex-algo-08 (OSPFv2 flex algo)
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Date: Fri, 7 Aug 2020 04:03:34 +0000
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Subject: [spring] https://tools.ietf.org/html/draft-ietf-lsr-flex-algo-08 (OSPFv2 flex algo)
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Note : Discussion is not about FAPM.

For flex algorithm (example take it as 128) OSPF Prefix (For summary/external prefixes),  how to get the prefix cost ? there is no prefix cost field in OSPFv2 Extended Prefix TLV.
Currently only way I can see is prefix needs to be advertised in flex algo zero(as summary or external prefixes in legacy ospf) as well as in flex algo 128 (OSPFv2 Extended Prefix TLV)

Thanks
Rajesh




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