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1088 PowerConnect B-Series FCX Configuration Guide
53-1002266-01
Displaying BGP4 information
30
Displaying route flap dampening statistics
To display route dampening statistics or all the dampened routes, enter the following command at
any level of the CLI.
Syntax: show ip bgp flap-statistics [regular-expression <regular-expression> | <address> <mask>
[longer-prefixes] | neighbor <ip-addr> | filter-list <num>...]
The regular-expression <regular-expression> parameter is a regular expression. The regular
expressions are the same ones supported for BGP4 AS-path filters. Refer to “Using regular
expressions” on page 1036.
The <address> <mask> parameter specifies a particular route. If you also use the optional
longer-prefixes parameter, then all statistics for routes that match the specified route or have a
longer prefix than the specified route are displayed. For example, if you specify 209.157.0.0 longer,
then all routes with the prefix 209.157 or that have a longer prefix (such as 209.157.22) are
displayed.
The neighbor <ip-addr> parameter displays route flap dampening statistics only for routes learned
from the specified neighbor. You also can display route flap statistics for routes learned from a
neighbor by entering the following command: show ip bgp neighbors <ip-addr> flap-statistics.
The filter-list <num> parameter specifies one or more filters. Only the routes that have been
dampened and that match the specified filters are displayed.
Table 192 lists the field definitions for the command output.
PowerConnect#show ip route
Total number of IP routes: 50834
B:BGP D:Directly-Connected O:OSPF R:RIP S:Static
Network Address NetMask Gateway Port Cost Type
3.0.0.0 255.0.0.0 192.168.13.2 1/1 0 B
4.0.0.0 255.0.0.0 192.168.13.2 1/1 0 B
9.20.0.0 255.255.128.0 192.168.13.2 1/1 0 B
10.1.0.0 255.255.0.0 0.0.0.0 1/1 1 D
10.10.11.0 255.255.255.0 0.0.0.0 2/24 1 D
12.2.97.0 255.255.255.0 192.168.13.2 1/1 0 B
12.3.63.0 255.255.255.0 192.168.13.2 1/1 0 B
12.3.123.0 255.255.255.0 192.168.13.2 1/1 0 B
12.5.252.0 255.255.254.0 192.168.13.2 1/1 0 B
12.6.42.0 255.255.254.0 192.168.13.2 1/1 0 B
remaining 50824 entries not shown...
PowerConnect#show ip bgp flap-statistics
Total number of flapping routes: 414
Status Code >:best d:damped h:history *:valid
Network From Flaps Since Reuse Path
h> 192.50.206.0/23 166.90.213.77 1 0 :0 :13 0 :0 :0 65001 4355 1 701
h> 203.255.192.0/20 166.90.213.77 1 0 :0 :13 0 :0 :0 65001 4355 1 7018
h> 203.252.165.0/24 166.90.213.77 1 0 :0 :13 0 :0 :0 65001 4355 1 7018
h> 192.50.208.0/23 166.90.213.77 1 0 :0 :13 0 :0 :0 65001 4355 1 701
h> 133.33.0.0/16 166.90.213.77 1 0 :0 :13 0 :0 :0 65001 4355 1 701
*> 204.17.220.0/24 166.90.213.77 1 0 :1 :4 0 :0 :0 65001 4355 701 62