From: Lord, Chris (chris.lord@lorien.co.uk)
Date: Tue Jan 13 2004 - 06:45:57 GMT-3
Thanks to all of you who came to my rescue! ..... naturally I feel more than a little embarassed (as a mere mortal) for doubting IPExpert!
The crux of the matter was that in a fully meshed NBMA net, things will work no matter which router becomes the DIS. However, in a partial mesh you have to make sure that the hub router is the DIS. In my lab one of the spokes had been elected as the DIS so that the other spoke couldn't form an adjacency with the hub. Use of isis priority 0 on the two spokes fixed everything.
I noted from CCO that given the same ISIS metric and priority, the DIS is elected based on mac address. In which case the published IPE solution could only have worked by chance since the priority command was not present in the configs?
Thx again,
Chris.
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