From: Peter van Oene (pvo@usermail.com)
Date: Mon Mar 03 2003 - 12:16:30 GMT-3
At 12:40 AM 3/4/2003 +1100, Hunt Lee wrote:
>Hi guys,
>
>I did a lab scenario on ISIS. I got all the routes correctly on all of my
>routers.
>However, some of my routes have got different L1 / L2 tags than as the
>model answer.
>
>How do we determine whether a particular ISIS route will be L1 or L2?
It depends upon which LSP (L1 or L2) contained the TLV's that represent the
prefix.
>- if the ISIS network is within the same ISIS area, then it is L1
>- if it is from a different ISIS area, it is L2
>So in the topology...
>
>RTC---RTD (top two is in ISIS Area 1)
> |
>RTA---RTB (bottom four is in ISIS Area 2)
> | \
>RTE RTF
>
>Or does it depends on ISIS Router types / redistribution commands...
In the case of redistribution, it depends on whether the routes are
redistributed into the L1 or L2 LSPs.
>Any help / ideas would be greatly appreciated.
>
>Regards,
>Hunt
>
>
>
>
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