OcNOS-SP : Layer 3 Guide : Border Gateway Protocol Command Reference : BGP Show Commands : show bgp dampening parameters
show bgp dampening parameters
Use this command to display the BGP dampening parameters.
Command Syntax
show bgp dampening parameters
show bgp (ipv4|ipv6) (unicast|multicast) dampening parameters
show bgp (ipv6) dampening parameters
show ip bgp dampening parameters
show ip bgp ipv4 (unicast|multicast) dampening parameters (vrf (VRFNAME|all|default))
show ip bgp dampening parameters (vrf (VRFNAME|all|default))
Parameters
ipv4
IPv4 routes
ipv6
IPv6 routes
unicast
Unicast prefixes
multicast
Multicast prefixes
VRFNAME
VPN routing/forwarding instance name
all
All VRFs
default
Default VRF
Command Mode
Privileged Exec mode and Exec mode
Applicability
This command was introduced before OcNOS version 1.3.
Examples
#show ip bgp dampening parameters
dampening 5 750 2000 60 15
Dampening Control Block(s):
Reachability Half-Life time : 5 min
Reuse penalty : 750
Suppress penalty : 2000
Max suppress time : 60 min
Un-reachability Half-Life time : 15 min
Max penalty (ceil) : 11999
Min penalty (floor) : 375
#
Table 7-12 explains the output fields.
 
Table 7-12: show ip bgp dampening parameters output details
Field
Description
Dampening Control Block(s)
Flap damping reduces the number of update messages by marking routes as ineligible for selection as the active or preferable route.
Reachability Half-Life time
Number of minutes after which an arbitrary value is halved if a route stays stable.
Reuse penalty
Reuse threshold—Arbitrary value below which a suppressed route can be used again.
Suppress penalty
Cutoff (suppression) threshold—Arbitrary value above which a route can no longer be used or included in advertisements.
Max suppress time
Maximum hold-down time for a route, in minutes.
Un-reachability Half-Life time
Number of minutes after which an arbitrary value is not halved if a route stays stable.
Max penalty (ceil)
Maximum penalty corresponds to the time it would take max-suppress to decay and reach the reuse level (ceil).
Min penalty (floor)
Maximum penalty corresponds to the time it would take max-suppress to decay and reach the reuse level (floor).
 
Last modified date: 10/16/2023