Command Line Reference Guide

Usage
Information
The following describes the show ip bgp ipv6 unicast neighbors command
shown in the Example below.
Lines Beginning
with
Description
BGP neighbor Displays the BGP neighbor address and its AS number. The last
phrase in the line indicates whether the link between the BGP router
and its neighbor is an external or internal one. If they are located in
the same AS, then the link is internal; otherwise, the link is external.
BGP version Displays the BGP version (always version 4) and the remote router ID.
BGP state Displays the neighbor’s BGP state and the amount of time in
hours:minutes:seconds it has been in that state.
Last read This line displays the following information:
• last read is the time (hours:minutes:seconds) the router reads
a message from its neighbor
• hold time is the number of seconds configured between
messages from its neighbor
• keepalive interval is the number of seconds between
keepalive messages to help ensure that the TCP session is
still alive
Received
messages
This line displays the number of BGP messages received, the number
of notifications (error messages), and the number of messages
waiting in a queue for processing.
Sent messages The line displays the number of BGP messages sent, the number of
notifications (error messages), and the number of messages waiting
in a queue for processing.
Received updates This line displays the number of BGP updates received and sent.
Soft
reconfiguration
This line indicates that soft reconfiguration inbound is configured.
Minimum time Displays the minimum time, in seconds, between advertisements.
(List of inbound
and outbound
policies)
Displays the policy commands configured and the names of the Route
map, AS-PATH ACL, or Prefix list configured for the policy.
For address
family:
Displays IPv6 Unicast as the address family.
BGP table version Displays which version of the primary BGP routing table the router
and the neighbor are using.
Prefixes
accepted
Displays the number of network prefixes accepted by the router and
the amount of memory used to process those prefixes.
Prefixes
advertised
Displays the number of network prefixes advertised, the number
rejected, and the number withdrawn from the BGP routing table.
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