Asymmetric Routing

From: Danny.Andaluz@triaton-na.com
Date: Fri Nov 14 2003 - 13:08:11 GMT-3


Hey, Group.
 
I had a question about asymmetric routing. Here's a simple diagram:
 
http://home.comcast.net/~practice.lab.examples/asymmetricrouting.jpg
<http://home.comcast.net/~practice.lab.examples/asymmetricrouting.jpg>
 
If a requirement states that R1 must send all packets to R3 via R2, is it
safe to assume that the traffic has to come back from R3 the same way? Is
this the case even if it is not explicitly stated in the requirement that it
must? Would it be ok if the return traffic came back via R4? I know this
is probably not best practice, but for a lab, would it matter? I'm thinking
traffic should be sent and returned the most optimal way, but in this case,
the paths from R3 to R1 have the same metric.
 
Thanks,
Danny



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