[c-nsp] mpls ip creating traffic disturbance(s)

Jay Hennigan jay at west.net
Thu Jan 17 03:52:59 EST 2013


On 1/17/13 12:40 AM, Adam Vitkovsky wrote:
>> So ospf summary-address statements will break MPLS?
> In MPLS core all that matters is the reachability from one PE loopback to
> other PE loopback (/32 prefixes), actually nothing else needs to be
> advertised by OSPF
> So if all of a sudden you'll replace the /32 loopback prefix with a summary
> prefix you'll basically break the label switched path between the PEs

That explains the point a lot better.  "Any network that depends on an
interface (including a loopback interface) being reachable will break if
the interface isn't reachable", makes perfect sense.

"Summarization breaks MPLS", that's kind of a head-scratcher.

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV


More information about the cisco-nsp mailing list