From: Akaradeth.N@datacraft-asia.com
Date: Wed Mar 29 2006 - 00:46:47 GMT-3
Hi Dan,
Thank you very much for your answer.
After I study on this issue, I can prevent the loop by "never permit route
sent from one IGP get back into its own IGP" again, by filtering using:
1. route-map with tag
2. distribute-list, offset-list, or distance
every time when doing mutual redistribution more than 1 point.
I can check whether it is running routing loop by "show ip route", "ping
all_IP", and using:
1. show ip ospf database
2. show ip rip database
3. show ip eigrp topology
Please correct me if I'm wrong.
Regards,
Akaradeth
-----Original Message-----
From: Dan Espino [mailto:drespino@gmail.com]
Sent: Wednesday, March 29, 2006 1:44 AM
To: Akaradeth N@MS@DCTH-BKK
Subject: Re: Best practice to prevent routing loop
for starters, you can have 2 kinds of problems
1 loops due to AD
2 blackhole of your traffic
for 1. be sure to filter (thats only one answer...)
for 2 use a tcl script to pind all devices from everywhere to be sure
ou have reachability, if not, the route may not be in the table (or
flapping)
This is a large topic, but at least you have a starting point
-Dan
On 3/15/06, Akaradeth.N@datacraft-asia.com
<Akaradeth.N@datacraft-asia.com> wrote:
> Hi all,
>
>
>
> I'm confusing about redistribution and preventing routing loop, can anyone
> help me to guide about routing loop?
>
>
>
> Waiting for your advice,
>
> Akaradeth
>
>
>
>
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