From: Peter van Oene (pvo@usermail.com)
Date: Tue Mar 18 2003 - 17:43:18 GMT-3
At 01:26 PM 3/18/2003 -0500, steve r wrote:
>I been looking in cisco's sites and docs on ISIS and its topology with frame
>point to point and multipoint to different interfaces and subinterfaces.(All
>I found was some what worthless)
>Does any one have any info OUTSIDE of Cisco on ISIS and its behavior with
>frame-relay interfaces
>OR Any Real World Experience on ISIS from ISPs.??
Most people don't run ISIS over partial mesh point to point Frame links.
> (please hold back on the canned answer of use point to point to point to
>point, or interface to interface only ).
You must match network types for adjacencies to form. Until very recently
(and maybe not in the lab) Cisco hasn't provided a knob to override network
type selection (ie ip ospf net type) This is a canned answer because its
the only one.
> The complex problems of ISIS using different interfaces types have turned
>me on to shooting in dark, with trial and error to get things working with
>redistribution with other protocols.
There really isn't much complexity to it. Point to point sub-interfaces or
Point to Point interfaces in general use point to point hellos for
adjacency formation, and physical multi-access interfaces and point to
multipoint use LAN hellos. You need to pick versions on each side that
match..
>Stephen R
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