Displaying route flap dampening statistics – Brocade Virtual ADX Switch and Router Guide (Supporting ADX v03.1.00) User Manual
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Brocade Virtual ADX Switch and Router Guide
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Displaying BGP4 information
8
Displaying the routes BGP4 has placed in
the IP route table
The IP route table indicates the routes it has received from BGP4 by listing “BGP” as the route type.
To display the IP route table, enter the following command.
Virtual ADX# show ip route
Syntax: show ip route [ip-addr | num | bgp | ospf]
This example shows the information displayed by this command. Notice that most of the routes in
this example have type “B”, indicating that their source is BGP4.
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
The address mask parameters specify a particular route. If you also use the optional
longer-prefixes parameter, 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 10.157.0.0 longer, 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 can also display route flap statistics for routes learned from a
neighbor by entering the show ip bgp neighbor ip-addr flap-statistics.command.
Virtual ADX# show ip route
Total number of IP routes: 7
Start index: 1 B:BGP Be:EBGP Bi:IBGP D:Connected S:Static
O:OSPF IA:Inter area IR:Intra area E1:External type 1 E2:External type 2
(N): Don't advertise *:Candi-default
Destination
NetMask
Gateway
Port
Cost
Type
--------------------------------------------------------------------------
1
10.130.130.0
255.255.255.0
10.11.11.1
ve 1
200/0
B
2
10.130.131.0
255.255.255.0
10.11.11.1
ve 1
200/0
B
Virtual ADX# 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>
10.50.206.0/23
10.90.213.77
1
0 :0 :13 0 :0 :0 65001 4355 1 701
h>
10.255.192.0/20
10.90.213.77
1
0 :0 :13 0 :0 :0 65001 4355 1 7018
h>
10.252.165.0/24
10.90.213.77
1
0 :0 :13 0 :0 :0 65001 4355 1 7018
h>
10.50.208.0/23
10.90.213.77
1
0 :0 :13 0 :0 :0 65001 4355 1 701
h>
10.33.0.0/16
10.90.213.77
1
0 :0 :13 0 :0 :0 65001 4355 1 701
*>
10.17.220.0/24
10.90.213.77
1
0 :1 :4 0 :0 :0 65001 4355 701 62