[chassis/multi-asic] Enable Sending BGP Community over internal neighbors over iBGP Session #16705
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peer device's Signed-off-by: Abhishek Dosi <[email protected]>
Signed-off-by: Abhishek Dosi <[email protected]>
higher value so that BGP learnt default route is higher priority. Signed-off-by: Abhishek Dosi <[email protected]>
Signed-off-by: Abhishek Dosi <[email protected]>
…sis systrem" This reverts commit fcbd38d.
possible Signed-off-by: Abhishek Dosi <[email protected]>
Signed-off-by: Abhishek Dosi <[email protected]>
…t max" This reverts commit 2109e03.
arlakshm
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Sep 26, 2023
judyjoseph
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Sep 26, 2023
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@yxieca , @StormLiangMS , Can you help review/approve for the corresponding branches (202205, 202211,a nd 202305) |
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@abdosi I have a couple questions for this change:
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It should not. community goes in BGP frame and other side will just parse it and use it accordingly. There is no requirement for it to be enable on both side of BGP session. |
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Cherry-pick PR to 202211: #16711 |
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@abdosi have you tested with 202305? |
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…bors over iBGP Session (#16705) What I did: Enable Sending BGP Community over internal neighbors over iBGP Session Microsoft ADO: 25268695 Why I did: Without this change BGP community send by e-BGP Peers are not carry-forward to other e-BGP peers. str2-xxxx-lc1-2# show bgp ipv6 20c0:a801::/64 BGP routing table entry for 20c0:a801::/64, version 52141 Paths: (1 available, best #1, table default) Not advertised to any peer 65000 65500 2603:10e2:400::6 from 2603:10e2:400::6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) Last update: Tue Sep 26 16:08:26 2023 str2-xxxx-lc1-2# show ip bgp 192.168.35.128/25 BGP routing table entry for 192.168.35.128/25, version 52688 Paths: (1 available, best #1, table default) Not advertised to any peer 65000 65502 3.3.3.6 from 3.3.3.6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) Last update: Tue Sep 26 15:45:51 2023 After the change str2-xxxx-lc2-2(config)# router bgp 65100 str2-xxxx-lc2-2(config-router)# address-family ipv4 str2-xxxx-lc2-2(config-router-af)# neighbor INTERNAL_PEER_V4 send-community str2-xxxx-lc2-2(config-router-af)# exit str2-xxxx-lc2-2(config-router)# address-family ipv6 str2-xxxx-lc2-2(config-router-af)# neighbor INTERNAL_PEER_V6 send-community str2-xxxx-lc1-2# show bgp ipv6 20c0:a801::/64 BGP routing table entry for 20c0:a801::/64, version 52400 Paths: (1 available, best #1, table default) Not advertised to any peer 65000 65500 2603:10e2:400::6 from 2603:10e2:400::6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) **Community: 1111:1111** Last update: Tue Sep 26 16:10:19 2023 str2-xxxx-lc1-2# show ip bgp 192.168.35.128/25 BGP routing table entry for 192.168.35.128/25, version 52947 Paths: (1 available, best #1, table default) Not advertised to any peer 65000 65502 3.3.3.6 from 3.3.3.6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) **Community: 1111:1111** Last update: Tue Sep 26 16:10:09 2023 Signed-off-by: Abhishek Dosi <[email protected]>
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@StormLiangMS this is generic FRR change so should work with 202305. We don't have chassis image available as of now for 202305 to test end to end. Change only applies to Chassis/mulit-asic system only |
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…bors over iBGP Session (sonic-net#16705) What I did: Enable Sending BGP Community over internal neighbors over iBGP Session Microsoft ADO: 25268695 Why I did: Without this change BGP community send by e-BGP Peers are not carry-forward to other e-BGP peers. str2-xxxx-lc1-2# show bgp ipv6 20c0:a801::/64 BGP routing table entry for 20c0:a801::/64, version 52141 Paths: (1 available, best sonic-net#1, table default) Not advertised to any peer 65000 65500 2603:10e2:400::6 from 2603:10e2:400::6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) Last update: Tue Sep 26 16:08:26 2023 str2-xxxx-lc1-2# show ip bgp 192.168.35.128/25 BGP routing table entry for 192.168.35.128/25, version 52688 Paths: (1 available, best sonic-net#1, table default) Not advertised to any peer 65000 65502 3.3.3.6 from 3.3.3.6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) Last update: Tue Sep 26 15:45:51 2023 After the change str2-xxxx-lc2-2(config)# router bgp 65100 str2-xxxx-lc2-2(config-router)# address-family ipv4 str2-xxxx-lc2-2(config-router-af)# neighbor INTERNAL_PEER_V4 send-community str2-xxxx-lc2-2(config-router-af)# exit str2-xxxx-lc2-2(config-router)# address-family ipv6 str2-xxxx-lc2-2(config-router-af)# neighbor INTERNAL_PEER_V6 send-community str2-xxxx-lc1-2# show bgp ipv6 20c0:a801::/64 BGP routing table entry for 20c0:a801::/64, version 52400 Paths: (1 available, best sonic-net#1, table default) Not advertised to any peer 65000 65500 2603:10e2:400::6 from 2603:10e2:400::6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) **Community: 1111:1111** Last update: Tue Sep 26 16:10:19 2023 str2-xxxx-lc1-2# show ip bgp 192.168.35.128/25 BGP routing table entry for 192.168.35.128/25, version 52947 Paths: (1 available, best sonic-net#1, table default) Not advertised to any peer 65000 65502 3.3.3.6 from 3.3.3.6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) **Community: 1111:1111** Last update: Tue Sep 26 16:10:09 2023 Signed-off-by: Abhishek Dosi <[email protected]>
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Cherry-pick PR to 202305: #17214 |
mssonicbld
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Nov 18, 2023
…bors over iBGP Session (#16705) What I did: Enable Sending BGP Community over internal neighbors over iBGP Session Microsoft ADO: 25268695 Why I did: Without this change BGP community send by e-BGP Peers are not carry-forward to other e-BGP peers. str2-xxxx-lc1-2# show bgp ipv6 20c0:a801::/64 BGP routing table entry for 20c0:a801::/64, version 52141 Paths: (1 available, best #1, table default) Not advertised to any peer 65000 65500 2603:10e2:400::6 from 2603:10e2:400::6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) Last update: Tue Sep 26 16:08:26 2023 str2-xxxx-lc1-2# show ip bgp 192.168.35.128/25 BGP routing table entry for 192.168.35.128/25, version 52688 Paths: (1 available, best #1, table default) Not advertised to any peer 65000 65502 3.3.3.6 from 3.3.3.6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) Last update: Tue Sep 26 15:45:51 2023 After the change str2-xxxx-lc2-2(config)# router bgp 65100 str2-xxxx-lc2-2(config-router)# address-family ipv4 str2-xxxx-lc2-2(config-router-af)# neighbor INTERNAL_PEER_V4 send-community str2-xxxx-lc2-2(config-router-af)# exit str2-xxxx-lc2-2(config-router)# address-family ipv6 str2-xxxx-lc2-2(config-router-af)# neighbor INTERNAL_PEER_V6 send-community str2-xxxx-lc1-2# show bgp ipv6 20c0:a801::/64 BGP routing table entry for 20c0:a801::/64, version 52400 Paths: (1 available, best #1, table default) Not advertised to any peer 65000 65500 2603:10e2:400::6 from 2603:10e2:400::6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) **Community: 1111:1111** Last update: Tue Sep 26 16:10:19 2023 str2-xxxx-lc1-2# show ip bgp 192.168.35.128/25 BGP routing table entry for 192.168.35.128/25, version 52947 Paths: (1 available, best #1, table default) Not advertised to any peer 65000 65502 3.3.3.6 from 3.3.3.6 (3.3.3.6) Origin IGP, localpref 100, valid, internal, best (First path received) **Community: 1111:1111** Last update: Tue Sep 26 16:10:09 2023 Signed-off-by: Abhishek Dosi <[email protected]>
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What I did:
Enable Sending BGP Community over internal neighbors over iBGP Session
Microsoft ADO: 25268695
Why I did:
Without this change BGP community send by e-BGP Peers are not carry-forward to other e-BGP peers.
How I Verify:
Without this Change
After the change