CLI Guide
Lines Beginning
With
Description
• last read is the time (hours:minutes:seconds) the router reads a message from its
neighbor
• hold time is the number of seconds congured 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 notications
(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 notications (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.
Minimum time Displays the minimum time, in seconds, between advertisements.
(List of inbound and
outbound policies)
Displays the policy commands congured and the names of the Route map, AS-PATH
ACL, or Prex list congured 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.
Accepted Prexes Displays the number of network prexes accepted by the router and the amount of
memory used to process those prexes.
Prexes advertised Displays the number of network prexes advertised, the number rejected, and the number
withdrawn from the BGP routing table.
Connections
established
Displays the number of TCP connections established and dropped between the two peers
to exchange BGP information.
Last reset Displays the amount of time since the peering session was last reset. Also states if the
peer resets the peering session. If the peering session was never reset, the word “never”
is displayed.
Local host: Displays the peering address of the local router and the TCP port number.
Foreign host: Displays the peering address of the neighbor and the TCP port number.
Example
Dell#show ip bgp ipv6 unicast neighbors
BGP neighbor is 5ffe:10::3, remote AS 1, external link
BGP version 4, remote router ID 5.5.5.3
BGP state ESTABLISHED, in this state for 00:00:32
Last read 00:00:32, last write 00:00:32
Hold time is 180, keepalive interval is 60 seconds
Received 1404 messages, 0 in queue
3 opens, 1 notifications, 1394 updates
6 keepalives, 0 route refresh requests
Sent 48 messages, 0 in queue
3 opens, 2 notifications, 0 updates
43 keepalives, 0 route refresh requests
Minimum time between advertisement runs is 30 seconds
Minimum time before advertisements start is 0 seconds
Capabilities received from neighbor for IPv6 Unicast :
MULTIPROTO_EXT(1)
ROUTE_REFRESH(2)
CISCO_ROUTE_REFRESH(128)
IPv6 Border Gateway Protocol (IPv6 BGP) 743