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| -rw-r--r-- | docs/configuration/protocols/bgp.rst | 138 |
1 files changed, 136 insertions, 2 deletions
diff --git a/docs/configuration/protocols/bgp.rst b/docs/configuration/protocols/bgp.rst index 54d996e8..b577e5b9 100644 --- a/docs/configuration/protocols/bgp.rst +++ b/docs/configuration/protocols/bgp.rst @@ -497,7 +497,8 @@ Peer Parameters This command allows sessions to be established with eBGP neighbors when they are multiple hops away. When the neighbor is not directly connected and this knob is not enabled, the session will not establish. - The number of hops range is 1 to 255. + The number of hops range is 1 to 255. This command is mutually + exclusive with :cfgcmd:`ttl-security hops`. .. cfgcmd:: set protocols bgp <asn> neighbor <address|interface> local-as <asn> [no-prepend] [replace-as] @@ -527,7 +528,7 @@ Peer Parameters This command enforces Generalized TTL Security Mechanism (GTSM), as specified in :rfc:`5082`. With this command, only neighbors that are the specified number of hops away will be allowed to - become neighbors. The number of hops range is 1 to 254.This + become neighbors. The number of hops range is 1 to 254. This command is mutually exclusive with :cfgcmd:`ebgp-multihop`. Peer Groups @@ -596,6 +597,139 @@ Timers This command specifies keep-alive time in seconds. The timer can range from 4 to 65535.The default value is 60 second. +Operational Mode Commands +========================= + +Show +---- + +.. opcmd:: show <ip|ipv6> bgp + + This command displays all entries in BGP routing table. + +.. code-block:: none + + BGP table version is 10, local router ID is 10.0.35.3, vrf id 0 + Default local pref 100, local AS 65000 + Status codes: s suppressed, d damped, h history, * valid, > best, = multipath, + i internal, r RIB-failure, S Stale, R Removed + Nexthop codes: @NNN nexthop's vrf id, < announce-nh-self + Origin codes: i - IGP, e - EGP, ? - incomplete + + Network Next Hop Metric LocPrf Weight Path + *> 198.51.100.0/24 10.0.34.4 0 0 65004 i + *> 203.0.113.0/24 10.0.35.5 0 0 65005 i + + Displayed 2 routes and 2 total paths + +.. opcmd:: show <ip|ipv6> bgp <address|prefix> + + This command displays information about the particular entry in the BGP routing table. + +.. code-block:: none + + BGP routing table entry for 198.51.100.0/24 + Paths: (1 available, best #1, table default) + Advertised to non peer-group peers: + 10.0.13.1 10.0.23.2 10.0.34.4 10.0.35.5 + 65004 + 10.0.34.4 from 10.0.34.4 (10.0.34.4) + Origin IGP, metric 0, valid, external, best (First path received) + Last update: Wed Jan 6 12:18:53 2021 + +.. opcmd:: show ip bgp cidr-only + + This command displays routes with classless interdomain routing (CIDR). + +.. opcmd:: show <ip|ipv6> bgp community <value> + + This command displays routes that belong to specified BGP communities. + Valid value is a community number in the range from 1 to 4294967200, + or AA:NN (autonomous system-community number/2-byte number), no-export, + local-as, or no-advertise. + +.. opcmd:: show <ip|ipv6> bgp community-list <name> + + This command displays routes that are permitted by the BGP + community list. + +.. opcmd:: show ip bgp dampened-paths + + This command displays BGP dampened routes. + +.. opcmd:: show <ip|ipv6> bgp neighbors <address> advertised-routes + + This command displays BGP routes advertised to a neighbor. + +.. opcmd:: show <ip|ipv6> bgp neighbors <address> received-routes + + This command displays BGP routes originating from the specified BGP + neighbor before inbound policy is applied. To use this command inbound + soft reconfiguration must be enabled. + +.. opcmd:: show <ip|ipv6> bgp neighbors <address> routes + + This command displays BGP received-routes that are accepted after filtering. + +.. opcmd:: show <ip|ipv6> bgp neighbors <address> dampened-routes + + This command displays dampened routes received from BGP neighbor. + +.. opcmd:: show <ip|ipv6> bgp regexp <text> + + This command displays information about BGP routes whose AS path + matches the specified regular expression. + +.. opcmd:: show <ip|ipv6> bgp summary + + This command displays the status of all BGP connections. + +.. code-block:: none + + IPv4 Unicast Summary: + BGP router identifier 10.0.35.3, local AS number 65000 vrf-id 0 + BGP table version 11 + RIB entries 5, using 920 bytes of memory + Peers 4, using 82 KiB of memory + + Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd + 10.0.13.1 4 65000 148 159 0 0 0 02:16:01 0 + 10.0.23.2 4 65000 136 143 0 0 0 02:13:21 0 + 10.0.34.4 4 65004 161 163 0 0 0 02:16:01 1 + 10.0.35.5 4 65005 162 166 0 0 0 02:16:01 1 + + Total number of neighbors 4 + +Reset +----- + +.. opcmd:: reset <ip|ipv6> bgp <address> [soft [in|out]] + + This command resets BGP connections to the specified neighbor IP address. + With argument :cfgcmd:`soft` this command initiates a soft reset. If + you do not specify the :cfgcmd:`in` or :cfgcmd:`out` options, both + inbound and outbound soft reconfiguration are triggered. + +.. opcmd:: reset ip bgp all + + This command resets all BGP connections of given router. + +.. opcmd:: reset ip bgp dampening + + This command uses to clear BGP route dampening information and to + unsuppress suppressed routes. + +.. opcmd:: reset ip bgp external + + This command resets all external BGP peers of given router. + +.. opcmd:: reset ip bgp peer-group <name> [soft [in|out]] + + This command resets BGP connections to the specified peer group. + With argument :cfgcmd:`soft` this command initiates a soft reset. If + you do not specify the :cfgcmd:`in` or :cfgcmd:`out` options, both + inbound and outbound soft reconfiguration are triggered. + Configuration Examples ---------------------- |