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= BGP Routing protocol =
 * Link - pushing [[Ospf]] through bgp mpls network.
 * http://ccie-in-3-months.blogspot.com/2008/04/bgp-how-to-display-incomingoutgoing.html - Filtering.
 * http://www.nil.com/ipcorner/DesigningBGPNetworks/
 * http://blog.ioshints.info/2009/09/display-rejected-bgp-routes.html
 * http://puck.nether.net/pipermail/cisco-nsp/2009-February/057944.html - Static tracked route
 * http://etherealmind.com/bgp-redistribution-ospf-statics/
 * http://blog.ioshints.info/2008/02/bgp-essentials-as-path-prepending.html

 * Command to debug
   * #show bgp neighbor a.b.c.d rejected-routes
   * #show ip bgp neighbor a.b.c.d received-routes
     * Display the routes received from the neighbor
   * #show ip bgp neighbor a.b.c.d routes
     * Display the routes sent by the neighbor and accepted by the inbound BGP filters

 * Send output to tftp server.
    {{{
       show ip bgp neighbor a.b.c.d received-routes | redirect tftp://x.x.x.x/received.txt 
       show ip bgp neighbor a.b.c.d routes | redirect tftp://x.x.x.x/routes.txt 
    }}}

 * To simplify testing use, soft reconfig (Check it doubles memory usage)
   {{{
       neighbor a.b.c.d soft-reconfiguration in 
       clear ip bgp a.b.c.d soft in
   }}}

 * Test bgp routes
   {{{
        sh ip bgp neighbors  x.x.x.x received-routes 
        sh ip bgp vpnv4 all neighbors a.b.c.d advertised-routes
   }}}

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CategoryCisco