Administrator Guide

show ip bgp dampened-paths
View BGP routes that are dampened (non-active).
Z-Series
Syntax
show ip bgp [ipv4 {multicast | unicast} | ipv6 unicast] dampened-paths
Parameters
ipv4 unicast (OPTIONAL) Enter the keywords ipv4 followed by the keyword unicast to view
information related only to ipv4 unicast routes.
ipv6 unicast (OPTIONAL) Enter the keyword ipv6 followed by the keyword unicast to view
information related only to ipv6 unicast routes.
Command Modes
● EXEC
● EXEC Privilege
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
Networking OS Command Line Reference Guide.
The following is a list of the Dell Networking OS version history for this command.
Version Description
9.7(0.0) Added the ipv4 multicast and ipv6 unicast parameters.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series.
Usage
Information
To determine a BGP session flap, both a route-down event and a subsequent route-up event
corresponding to a single route are considered. As a result, a flap event is penalized only one time during
the route-down event. The subsequent route-up event corresponding to the same route is not considered
as a flap and is not penalized.
The history paths that the show ip bgp command displays contain only the prefix and the next-hop
information. The next-hop information shows the ip address of the neighbor. It does not show the actual
next-hop details.
The following describes the show ip bgp damp command shown in the following example.
Field Description
Network Displays the network ID to which the route is dampened.
From Displays the IP address of the neighbor advertising the dampened route.
Reuse Displays the hour:minutes:seconds until the dampened route is available.
Path Lists all the ASs the dampened route passed through to reach the destination
network.
Example
Dell#show ip bgp dampened-paths
BGP local RIB : Routes to be Added 0, Replaced 0, Withdrawn 0
BGP local router ID is 192.168.11.5
Status codes: s suppressed, S stale, d dampened, h history, * valid, >
best
Path source: I - internal, a - aggregate, c - confed-external, r -
redistributed
Border Gateway Protocol 361