inter-domain link recovery

Wed Aug 15 07:22:50 UTC 2007

----------- rdobbins at cisco.com wrote:---------------
On Aug 14, 2007, at 9:06 PM, Chengchen Hu wrote:

> 1. Why BGP-like protocol failed to recover the path sometimes? Is  
> it mainly because the policy setting by the ISP and network operators?

There are an infinitude of possible answers to these questions which  
have nothing to do with BGP, per se; those answers are very  
subjective in nature.  Can you provide some specific examples  
-------------------------------------------------------

Perhaps your path flapped numerous times and you were "dampened" by your upstream provider?

First web search using "route dampening" gives:
www.inetdaemon.com/tutorials/internet/ip/routing/bgp/operation/bgp_route_flap_dampening.shtml

As Roland mentions, specific examples (for example, "show" commands from the router) would help.

scott