Overview

Figure 6-12 Figure 12 Use of Confederations to Reduce IBGP Mesh

Confederation

Sub AS-302

AS-3

 

XSR A

IBGP

XSR B

EBGP

Peer using Sub-AS

 

numbers

XSR C

 

IBGP

IBGP

IBGP

 

XSR D

XSR E

Sub AS-301

EBGP

Peer using real

 

AS numbers

AS-4

XSR F

Displaying System and Network Statistics

The XSR supports BGP statistical displays such as routing table entries, caches, and databases. The XSR can also show data about node accessibility and the path packets take through the network. The XSR offers the following BGP show commands:

Show BGP routing table entries: show ip bgp

Show routes within communities: show ip bgp community

Show routes sanctioned by a community list: show ip bgp community-list

Show paths suppressed due to dampening: show ip bgp dampened-list

Show routes matched by the AS path ACL: show ip bgp filter-list

Show routes with conflicting originating ASs: show ip bgp inconsistent-as

Show data on a neighbor’s TCP and BGP links: show ip bgp neighbors

XSR User’s Guide 6-21

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Enterasys Networks X-PeditionTM manual Displaying System and Network Statistics