From: Edwards, Andrew M (andrew.m.edwards@boeing.com)
Date: Tue Sep 28 2004 - 12:23:36 GMT-3
For those of you familiar with the lab, I'd appreciate any feedback.
Especially on bgp dampening because I think I really need to get the
purpose of the second route-map permit sequence.
Re: requirement to not accept routes from any other EIGRP routers on
VLAN 1 that may be added in the future
The author used a distribute list with the gateway statement to allow
only R2 to provide updates to R3 on this VLAN.
I used a different method and wanted to run it by the groupstudy.
I used the distance command such that there were two entries in the
following order:
1. distance 90 172.16.0.1 0.0.0.0
2. distance 255 172.16.0.0 0.0.255.255
With this configuration, R3 became adjacent to another router (I used
the 3550 switch to test) on the VLAN, but DID NOT take any routing
updates from it.
Would this have also met the requiremet from the lab? Curious...
re: bgp dampening
I noticed that there were 2 route map sequences in the solution.
I am not sure what the purpose is to the final route-map sequence
"permit 20". Can someone elaborate?
Generally it was this in Lab 3:
bgp dampen route-map dampen
route-map dampen permit 10
match ip add 3
set damp x x x x
route-map dampen permit 20
access-list 3 permit ip w.x.y.z 0.0.0.15
re: bgp rib failures
The author indicates that all the IGP routes should be backdoored for
full points.
If you only backdoor the peered eBGP neighbor networks though the routes
will stop flapping and the other routes will just be eBGP instead of
OSPF.
Is it true, in a lab environment, that we should ALWAYS set backdoor
routes for IGP learned routes over EGP routes?
Andy
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