[j-nsp] spring/sr ospf - opaque lsa's

[Aaron Gould]

My first look at spring/sr.



I have 5 nodes with node sids and able to do l3vpn over spring-enabled-ospf



node sid's like this..... (forgive the 1,2,5 out of sequence usage...long
story)



101------1------2------5------102



pe1------p------p------p------pe





Does anyone know the purposes of these different lsa-ids that I learn from
my 5 spring nodes ?



***@vmx-blcn> show ospf database opaque-area lsa-id 4.0.0.0



OSPF database, Area 0.0.0.1

Type ID Adv Rtr Seq Age Opt Cksum Len

OpaqArea 4.0.0.0 10.111.0.20 0x8000001d 2972 0x22 0xb29d 284

OpaqArea 4.0.0.0 10.111.0.30 0x8000001d 2959 0x22 0x76cf 284

OpaqArea*4.0.0.0 10.111.128.1 0x8000001d 2827 0x22 0xcbf7 284

OpaqArea 4.0.0.0 10.111.128.2 0x8000001d 2836 0x22 0xdfff 284

OpaqArea 4.0.0.0 10.111.128.5 0x8000001d 2775 0x22 0x3c7f 284



***@vmx-blcn> show ospf database opaque-area lsa-id 7.0.0.1



OSPF database, Area 0.0.0.1

Type ID Adv Rtr Seq Age Opt Cksum Len

OpaqArea 7.0.0.1 10.111.0.20 0x8000001d 2395 0x22 0x20e0 44

OpaqArea 7.0.0.1 10.111.0.30 0x8000001d 2381 0x22 0x8a61 44

OpaqArea*7.0.0.1 10.111.128.1 0x8000001d 2350 0x22 0x5832 44

OpaqArea 7.0.0.1 10.111.128.2 0x8000001d 2359 0x22 0x7a0d 44

OpaqArea 7.0.0.1 10.111.128.5 0x8000001d 2369 0x22 0xe09d 44



***@vmx-blcn> show ospf database opaque-area lsa-id 8.0.0.1



OSPF database, Area 0.0.0.1

Type ID Adv Rtr Seq Age Opt Cksum Len

OpaqArea 8.0.0.1 10.111.0.20 0x8000001e 606 0x22 0x667f 52

OpaqArea 8.0.0.1 10.111.0.30 0x8000001e 593 0x22 0x7d02 52

OpaqArea*8.0.0.1 10.111.128.1 0x8000001e 1361 0x22 0xde6a 48

OpaqArea 8.0.0.1 10.111.128.2 0x8000001e 870 0x22 0x87c8 48

OpaqArea 8.0.0.1 10.111.128.5 0x8000001e 1094 0x22 0xf54f 48



***@vmx-blcn> show ospf database opaque-area lsa-id 8.0.0.2



OSPF database, Area 0.0.0.1

Type ID Adv Rtr Seq Age Opt Cksum Len

OpaqArea*8.0.0.2 10.111.128.1 0x8000001e 867 0x22 0xac6b 48

OpaqArea 8.0.0.2 10.111.128.2 0x8000001e 376 0x22 0x64d8 52

OpaqArea 8.0.0.2 10.111.128.5 0x8000001e 672 0x22 0x35db 52



***@vmx-blcn> show ospf database opaque-area lsa-id 8.0.0.3



OSPF database, Area 0.0.0.1

Type ID Adv Rtr Seq Age Opt Cksum Len

OpaqArea*8.0.0.3 10.111.128.1 0x8000001e 369 0x22 0xf1fc 48

OpaqArea 8.0.0.3 10.111.128.5 0x8000001e 245 0x22 0xa64b 48



- Aaron

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[James Bensley]

Hi Aaron,

I'm not 100% what you're asking here. Opaque LSAs are used in SR to
advertise the SID for a prefix/node/adj within the IGP:

https://tools.ietf.org/html/draft-ietf-ospf-segment-routing-extensions-25

Cheers,
James.
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[Aaron Gould]

Thanks for the link and comment James... I have some reading/learning to do.

Aaron

Post by James Bensley
Hi Aaron,
I'm not 100% what you're asking here. Opaque LSAs are used in SR to
https://tools.ietf.org/html/draft-ietf-ospf-segment-routing-extensions-25
Cheers,
James.

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