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Re: Policy-based routing is evil? Discuss.


From: Bruce Pinsky <bep () whack org>
Date: Fri, 11 Oct 2013 15:59:22 -0700

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Phil Bedard wrote:
I'm having a discussion with a small network in a part of the world
where bandwidth is scarce and multiple DSL lines are often used for
upstream links. The topic is policy-based routing, which is being
described as "load balancing" where end-user traffic is assigned to a
line according to source address.

In my opinion the main problems with this are:

  - It's brittle, when a line fails, traffic doesn't re-route
  - None of the usual debugging tools work properly
  - Adding a new user is complicated because it has to be done in (at
    least) two places

But I'm having a distinct lack of success locating rants and diatribes
or even well-reasoned articles supporting this opinion.

Am I out to lunch?


No, but what better solution do we have to offer them?  There are dynamic
load distribution features and products (think Cisco PfR, for example), but
those are routinely lambasted as well.


- -- 
=========
bep

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