Prepending is not an effective way of forcing other providers to send
their traffic through your preferred upstream. In fact, there is no good
way to do it at all. It is far better to just have quality upstreams.
-Matt
Don Annas wrote:
When peering with multiple providers, is it a requirement that you pick a
primary to send and receive traffic or can you not prepend AS hops and allow
traffic to arrive to you via the 'best' BGP route.
As a VoIP provider, it is important that traffic enter and leave via the
same provider. We currently have a primary provider picked and force
traffic in by incrementing the AS prepends on our other BGP peers.
There is still some traffic that enters our network via the other peers
regardless of the AS prepends and we are looking to either force all traffic
in and out one provider as long as that peer is up, or preferably, allow
traffic to enter whichever peer is the best route while forcing the return
traffic back out the connection that the traffic entered.
- Don Annas
Triad Telecom, Inc.
336.510.3800 x111
[EMAIL PROTECTED]
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