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Foundry Configuration Guide for the FESX, FSX, and FWSX
21 - 98
© Foundry Networks, Inc.
December 2005
Here is an example of 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. See “Using Regular Expressions” on page 21-42.
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 neighbor
<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 filter(s) are displayed.
FESX424 Router# 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...
FESX424 Router# 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
Содержание FastIron Edge Switch X424
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