Re: [Idr] Fwd: New Version Notification for draft-spaghetti-idr-bgp-sendholdtimer-05.txt

[Nick Hilliard <[e-mail]>]

UTTARO, JAMES wrote on 04/08/2022 10:57:
> [Jim U>] There have been multiple dual failures of route reflectors
> that have resulted very large outages. When both of the RRs servicing
> some subset of PEs are compromised it has been due to an event such
> as a bad actor PE spewing BGP message that RRs in a given cluster
> cannot handle, malformed update  etc.... In these cases adding
> tertiary etc. RRs will not address will not help. As there is no
> issue in the forwarding plane for these FOUs ( NH Viability )
> compromising thousands of customers by tearing down the their VPNs is
> not acceptable
yep, for sure there are situations where GR is a really sound technical 
idea.  In regard to Robert's concerns, RS's aren't necessarily included 
in that category.  If a network abruptly drops off an RS, this shouldn't 
affect reachability, even if it may affect other quality parameters 
(latency, etc).  The same can't be said of RRs.

Nick