CE 用户:ce1 和ce2,可能是主备,咱们上次通过as-override 和 allow-as-in可以消除bgp as 相同防环机制 (目前个人理解,后面如有深入在做补充) R2: 写个route-map: route-map R2-R4-soo permit 10 set extcommunity soo 65001:1 然后R2 对PE1-R4 in方向调用 router bgp 100 address-family ipv4 vrf ABC ...
I have a question about as-prepend with as-override use on PEs on the same service provider. i would like to temporarely deploy new routers in parrallel (time to migrate) on the same site with duplicate client subnets. (192.168.1.0 & 192.168.2.0 ...same configuration) CE1,2,3,4 are...
The BGP AS-Override Split-Horizon feature enables a Provider Edge (PE) device using split-horizon to avoid advertisement of routes propagated by a Customer Edge (CE) device to the same CE device. The BGP AS-Override Split-Horizon feature also enables a PE or CE d...
I know I can resolve this by having SP A configure allowas-in or replace-as however they claim neither command is supported on their PE at this time. I am not sure why, these are pretty common configurations in BGP. What are my other options to resolve this? Will as-override work? Th...
c)Bgp bestpath med missing-as-worst,默认情况下收到条目没有带MED时认为MED为0,配置本条命令之后,认为MED为4294967294,也就是说会优选带有其他MED的相同条目,但是查看BGP表时,MED还是显示0,一般来说要和bgp always-compare-med一起使用,否则不通AS学来的条目不比较MED值。
此規則適用於Cisco IOS XR路由器為同一AS中的兩個外部邊界網關協定(eBGP)對等體充當傳輸路由器時。 Rule 如果其他引數匹配,則所有未配置as-override的鄰居將被放置在一個公共更新組中。 (a)當更新組僅包含一個鄰居時,執行傳送端環路檢測。這樣,AS路徑的第一個AS編號與鄰居的AS匹配的所有路由都不會通告...
1 BGP AS-PATH entries using 24 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 16928 total bytes of memory BGP activity 140/68 prefixes, 220/144 paths, scan interval 60 secs ...
1 BGP AS-PATH entries using 24 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 16928 total bytes of memory BGP activity 140/68 prefixes, 220/144 paths, scan interval 60 secs ...
ctrl bgp:PeerAfControl(scalar:Bitmask16) Peer address-family control SELECTION: 4 - rr-client 8 - nh-self 16 - dis-peer-as-check 32 - allow-self-as 64 - default-originate 128 - advertisement-interval 256 - supp...
1048576 - as-override 2097152 - next-hop-third-party 4194304 - wght 8388608 - soo 16777216 - advt-map 33554432 - encap-mpls 67108864 - rewrite-rt-asn 134217728 - adv-gw-ip 268435456 - adv-loc-lbl-rt 536870912 ...