Shai, I'm not sure if you mean in general terms or the specific lab, but ISIS is designed so that L2 LSPs are not leaked over L1 adjacencies. This can cause L1 routers to use a less optimal path than it would if it could see L2 routes. This is why you may want to leak L2 into L1.
On Fri, Oct 30, 2009 at 12:28 PM, Shai Loufton <[email protected]> wrote: > Ok – so thanks for everything everyone – just thought as long as you all > are here I will ask another question … > > > > > > I cannot understand why its "problematic" to leak routes in ISIS from L2 > into L1 > > > > For example – Vol II – 1st lab – task 2.1+2.2 > > It states that a few routes cannot be seen by router #2 – and then you see > more and more of those routes – so why even filter them? Why not allow all > L2 routes into L1? > > > > This question is specifically for this lab and also as a general "why" > question J > > > > Thanks > > Shai L > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > -- Bryan Bartik CCIE #23707 (R&S), CCNP Sr. Support Engineer - IPexpert, Inc. URL: http://www.IPexpert.com
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