Connectivity Guide

• Foreign host — Displays the peering address of the neighbor and the TCP port number.
Although the status codes for routes received from a BGP neighbor may not display in the show ip bgp
neighbors
ip-address received-routes output, they display correctly in the show ip bgp output.
Example
OS10# show ip bgp neighbors
BGP neighbor is 80.1.1.2, remote AS 800, local AS 102 external link
BGP version 4, remote router ID 12.12.0.2
BGP state ESTABLISHED, in this state for 00:02:51
Last read 00:18:23 seconds
Hold time is 90, keepalive interval is 30 seconds
Configured hold time is 180, keepalive interval is 60 seconds
Fall-over disabled
Received 11 messages
1 opens, 0 notifications, 3 updates
7 keepalives, 0 route refresh requests
Sent 8 messages
1 opens, 0 notifications, 0 updates
7 keepalives, 0 route refresh requests
Minimum time between advertisement runs is 30 seconds
Description: n1_abcd
Capabilities received from neighbor for IPv4 Unicast:
MULTIPROTO_EXT(1)MULTIPROTO_EXT(1)MULTIPROTO_EXT(1)ROUTE_REFRESH(2)
Capabilities advertised to neighbor for IPv4 Unicast:
MULTIPROTO_EXT(1)MULTIPROTO_EXT(1)ROUTE_REFRESH(2)CISCO_ROUTE_REFRESH
(128)4_OCTET_AS(65)
Prefixes accepted 5, Prefixes advertised 0
Connections established 1; dropped 1
Closed by neighbor sent 00:02:51 ago
For address family: IPv4 Unicast
Next hop set to self
Allow local AS number 0 times in AS-PATH attribute
For address family: IPv6 Unicast
Next hop set to self
Allow local AS number 0 times in AS-PATH attribute
Local host: 80.1.1.1, Local port: 57812
Foreign host: 80.1.1.2, Foreign port: 179
Example advertised-
routes
OS10# show ip bgp ipv6 unicast neighbors 192:168:1::2 advertised-routes
BGP local router ID is 100.1.1.1
Status codes: s suppressed, S stale, d dampened, h history, * valid, > best
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>55::/64 192:168:1::1 0 0 0 100i
*>55:0:0:1::/64 192:168:1::1 0 0 0 100i
*>55:0:0:2::/64 192:168:1::1 0 0 0 100i
*>55:0:0:3::/64 192:168:1::1 0 0 0 100i
*>55:0:0:4::/64 192:168:1::1 0 0 0 100i
*>55:0:0:5::/64 192:168:1::1 0 0 0 100i
*>55:0:0:6::/64 192:168:1::1 0 0 0 100i
*>55:0:0:7::/64 192:168:1::1 0 0 0 100i
*>55:0:0:8::/64 192:168:1::1 0 0 0 100i
*>55:0:0:9::/64 192:168:1::1 0 0 0 100i
*>172:16:1::/64 192:168:1::1 0 0 0 100?
Total number of prefixes: 11
OS10#
Example received-
routes
OS10# show ip bgp ipv6 unicast neighbors 172:16:1::2 received-routes
BGP local router ID is 100.1.1.1
Status codes: D denied
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Path
Layer 3 487