show bgp dampening flap-statistics
Use this command to display BGP dampening flap statistics.
Command Syntax
show bgp dampening flap-statistics
show bgp (ipv4|ipv6) (unicast|multicast) dampening flap-statistics
show bgp (ipv6) dampening flap-statistics
show ip bgp dampening flap-statistics
show ip bgp dampening flap-statistics (vrf (VRFNAME|all|default))
show ip bgp ipv4 (unicast|multicast) dampening flap-statistics
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
This sample output shows that the internal route (i), has flapped 3 times and is now categorized as history (h).
#show ip bgp dampening flap-statistics
BGP table version is 1, local router ID is 30.30.30.77
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network From Flaps Duration Reuse Path
hi1.1.1.0/24 10.100.0.62 3 00:01:20 i
Header
BGP table version is 1, local router ID is 30.30.30.77
• BGP table version
• BGP router ID is 30.30.30.77
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, S stale
Table 4-47 shows the status codes displayed at the start of a route entry.
Table 4-48: status details
Status Code | Description | Comments |
|---|
s | suppressed | Whether the route is suppressed and is not advertised to neighbors. |
d | damped | When the penalty of a flapping route exceeds the suppress limit, the route is damped and remains in a withdrawn state until its penalty decreases below the reuse limit. |
h | history | When the penalty of a flapping route does not exceed the suppress limit, the route is not damped and BGP maintains a history of the flapping route. |
p | stale | When the BGP neighbor from which a route is learned is in graceful restart, the route is retained in the BGP routing table, but marked as stale. |
* | valid | Whether the route is valid. When a route is not suppressed, damped, or present in the history, it is valid. |
> | best | The selected route to be installed in the kernel routing table. |
i | internal | The prefix was learned from an iBGP peer. |
Origin codes: i - IGP, e - EGP, ? - incomplete
Table 4-49 shows the codes at the end of each route entry that indicate where the route originated.
Table 4-49: origin details
Origin Code | Description | Comments |
|---|
i | IGP | The route is from an Interior Gateway Protocol. |
e | EGP | The route is from an Exterior Gateway Protocol. |
? | incomplete | Origin not known. Typically, these are routes redistributed from an IGP. |
Table 4-50 explains the output fields.
Table 4-50: show bgp dampening flap-statistics output details
Field | Description |
|---|
Network | Internet address of a network. |
From | IP address of the advertising peer. |
Flaps | Number of times this route has failed and returned (flapped). |
Duration | Elapsed time since the first penalty points were assessed. |
Reuse | The amount of time remaining until this route will be un-suppressed and can be used again. |
Last modified date: 08/28/2023