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Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) User Manual

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Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide

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Displaying BGP or MPLS VPNv4 information

6

Displaying Flap statistics for a specified VPNv4 neighbor by IP address

To display flap-statistics for routes learned from the specified VRF neighbor, enter the following
command at any level of the CLI.

R3-2547(config)# show ip bgp vpnv4 neighbors 10.2.2.2 flap-statistics

Total number of flapping routes: 0

Syntax: show ip bgp vpnv4 vrf-name neighbor ip-addr flap-statistics

The vrf-name parameter specifies the VPNv4 neighbor the user wants to display flap-statistics for.

The address / mask parameter specifies a particular route. When the user also uses 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, when the user specifies
10.157.0.0 longer, then all routes with the prefix 10.157 or that have a longer prefix (such as
10.157.22) are displayed.

This display shows the following information.

TABLE 116

Route flap dampening statistics

This field...

Displays...

Total number of flapping routes

The total number of routes in the device’s BGP4 route table that have
changed state and thus have been marked as flapping routes.

Atomic

Whether the network information in this set of attributes has been
aggregated and this aggregation has resulted in information loss:

TRUE – Indicates information loss has occurred

FALSE – Indicates no information loss has occurred

NOTE: Information loss under these circumstances is a normal part of

BGP4 and does not indicate an error.

Local Pref

The degree of preference for routes that use this set of attributes relative
to other routes in the local AS.

Communities

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

Extended Community

The extended community attributes of the device.

AS Path

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

Address

This field is for internal Brocade debugging purposes only.

Hash

This field is for internal Brocade debugging purposes only.

Reference Counts

This field is for internal Brocade debugging purposes only.

TABLE 115

BGP4 route-attribute entries information

(Continued)

This field...

Displays...