bgpd: add L2 attr community support as per RFC8214 #17987
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ton31337
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Feb 4, 2025
bgpd/bgp_ecommunity.h
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| #define ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR_PRIMARY_PE_FLAG 0x01 | ||
| #define ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR_BACKUP_PE_FLAG 0x02 | ||
| #define ECOMMUNITY_EVPN_SUBTYPE_LAYER2_ATTR_CONTROL_WORD_FLAG 0x04 | ||
| #define ECOMMUNITY_EVPN_SUBTYPE_PROXY_FLAG 0x04 |
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right. I will remove last define
The L2 attribute extended community can not be decoded when using L2VPN EVPN as a route reflector. Decode the extended community and dump the detailed information about flags and MTU information. > rt4# show bgp l2vpn evpn > BGP table version is 1, local router ID is 4.4.4.4 > Status codes: s suppressed, d damped, h history, * valid, > best, i - internal > Origin codes: i - IGP, e - EGP, ? - incomplete > EVPN type-1 prefix: [1]:[EthTag]:[ESI]:[IPlen]:[VTEP-IP]:[Frag-id] > EVPN type-2 prefix: [2]:[EthTag]:[MAClen]:[MAC]:[IPlen]:[IP] > EVPN type-3 prefix: [3]:[EthTag]:[IPlen]:[OrigIP] > EVPN type-4 prefix: [4]:[ESI]:[IPlen]:[OrigIP] > EVPN type-5 prefix: [5]:[EthTag]:[IPlen]:[IP] > > Network Next Hop Metric LocPrf Weight Path > Route Distinguisher: 1.1.1.1:100 > *>i[1]:[12]:[00:00:00:00:00:00:00:00:00:00]:[32]:[0.0.0.0]:[0] > 1.1.1.1 100 0 i > RT:65500:100 L2: P flag:N, B Flag N, C word N, MTU 0 > Route Distinguisher: 5.5.5.5:100 > *>i[1]:[10]:[00:00:00:00:00:00:00:00:00:00]:[32]:[0.0.0.0]:[0] > 5.5.5.5 100 0 i > RT:65500:100 L2: P flag:N, B Flag N, C word N, MTU 0 > Signed-off-by: Philippe Guibert <[email protected]>
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The L2 attribute extended community can not be decoded when using L2VPN EVPN as a route reflector. Decode the extended community and dump the detailed information about flags and MTU information.