This blog was originally started to better help me understand the technologies in the CCIE R&S blueprint; after completing the R&S track I have decided to transition the blog into a technology blog.

CCIE #29033

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Monday, November 29, 2010

Question 176

What is the path attributes used to manipulate return traffic?

3 comments:

Praveen said...

FOR incoming we manipulate MED attribute................

Packets Analyzed said...

So as the traffic leaves your AS you manipulate the MED value. What is the issue when leveraging MED and what other attribute manipulation can be done to influence the return traffic.

Rich said...

You can also preppend AS's on the AS path to create a less preferred path as the route is advertised into the next AS.

That's probably the easiest way to do control return traffic without having to involve the administrators of the devices on the peer AS (usually the ISP).

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