From: Yasser Aly (blackyeyes00@hotmail.com)
Date: Mon Nov 24 2003 - 19:20:39 GMT-3
All,
In TCP/IP Vol 1 Jeff Doyle says ( page 730 ):
Routes may be redistributed into IS-IS as either internal or external routes
and as either level 1 or level 2 routes. He says that the only difference
between redistributing route into ISIS as external rather than internal (
default for redistributed routes is internal level2 ) is that the metrics
of the redistributed routes have increased to higher than 64.
I have two questions:
1- How route metric is calculated while route is redistributred as external
level2 ?
In Doyle's scenario metirc of the route changed from being 10 ( incase of
internal level2 redistribution ) to be 138 ( incase of external level ).
2- How to know from the routing table of ISIS routes that this is an
internal or external route ? There is no O EX like OSPF here.
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