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Displaying route flap dampening statistics – Brocade BigIron RX Series Configuration Guide User Manual

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BigIron RX Series Configuration Guide

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Displaying BGP4 information

27

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.
You can view the IP route table.

To display the IP route table, enter the following command.

BigIron RX# show ip route

Syntax: show ip route [<ip-addr> | <num> | bgp | ospf | rip | isis]

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. Refer to

“Using regular

expressions”

on page 871.

Communities

The communities that routes with this set of attributes are in.

AS Path

The ASs through which routes with this set of attributes have passed.
The local AS is shown in parentheses.

TABLE 143

BGP4 route-attribute entries information (Continued)

This field...

Displays...

BigIron RX# show ip route

Type Codes - B:BGP D:Connected I:ISIS S:Static R:RIP O:OSPF; Cost - Dist/Metric

Destination Gateway Port Cost Type

1 130.130.130.0/24 11.11.11.1 ve 1 200/0 B

2 130.130.131.0/24 11.11.11.1 ve 1 200/0 B

BigIron RX# 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