Video:Simple BGP troubleshooting
[LEFT][CODE]http://wiki.nil.com/Video:Simple_BGP_troubleshooting[/CODE]
The video describes simple BGP troubleshooting techniques, including session troubleshooting, BGP route origination troubleshooting and route propagation troubleshooting. These procedures are illustrated in a simple two-site MPLS/VPN-based network using BGP as the PE-CE routing protocol.
[B]Contents[/B]
[LIST][*]1 Target audience[*]2 Other prerequisite knowledge[*]3 Reference diagram[*]4 Monitoring commands[*]5 BGP troubleshooting video[*]6 Router configurations[/LIST]
[B] Target audience [/B]
CCNA-level engineers who have to configure BGP on customer edge routers connected to MPLS VPN network.
[B] Other prerequisite knowledge [/B]
[LIST][*] [B]Connect a small site to MPLS VPN network using BGP as the PE-CE routing protocol[/B][/LIST]
[B] Reference diagram [/B]
[IMG]http://wiki.nil.com/wk/images/8/89/BGPMPLSVPN_Troubleshooting_Diagram.png[/IMG]
[B] Monitoring commands [/B]
[B]show ip protocol[/B] Display the routing protocols running on a router
[B]show ip bgp summary[/B] Display the state of BGP sessions
[B]show ip route [I]prefix[/I][/B] Display a single IP prefix in the IP routing table
[B]show ip bgp[/B] Display the contents of the BGP table
[B]show ip bgp [I]prefix[/I][/B] Display a single IP prefix in the BGP table
[B]show ip bgp regexp[/B] Display BGP routes where the AS-path matches the specified regular expression
[B]show ip bgp neighbor advertised[/B] Display BGP routes advertised to the specified neighbor
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