Re: [Idr] draft-chavali-bgp-prefixlimit-02.txt as an IDR WG document

[Eric Rosen <erosen at cisco.com>]

> In the current implementation, the  prefix limit is only configured on the
> BGP receiver (e.g., provider edge router), the BGP speaker (e.g. CPE) does
> not  have   any  control.   Some  implementation  has   warning  threshold
> option. When warning  limit is reached, the trap will only  show up on the
> provider  side, the  operator  has to  contact  the customer  by phone  or
> through some messaging systems.  

This suggests that it is useful for  a BGP speaker to know that a given peer
will only be  able to receive n prefixes.  In that  case, it certainly makes
sense for  the value  n to be  learned dynamically.   Both of the  drafts in
question support that functionality. 

I don't see the argument  for dynamically learning multiple threshold levels
from a peer.  Especially as there  are no real semantics associated with the
other thresholds. 


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