Re: [Bier] [pim] Q on the congestion awareness of routing protocols

[Masataka Ohta <[e-mail]>]

Robert Raszuk wrote:

>> Are you saying that each router receive 999 copies of
>> full route (these days, there are 1M routes) information
>> for iBGP is not a problem?
> 
> If reflectors are configured with ADD-PATHs ALL

TCP mesh between 1000 border routers should mean there is no
reflectors, I'm afraid.

>> OTOH, if there are 1000 border routers, configuration
>> simplicity means to have some automatic mechanism to
>> generate and install configuration files for the routers,
>> with which TCP mesh can be maintained automatically
>> without any added complexity.
> 
> The issue is that while you are absolutely correct in respect to automated
> configuration push when you add or delete an ASBR you do not usually want
> to push config to all remaining 998 border routers to add or delete a TCP
> session to a new/old node.

As adding or deleting an ASBR for ASes almost always implies policy
changes for the ASes, remaining 999 routers needs policy changes.

							Masataka Ohta