On 6/9/14 9:38 AM, Dennis Burgess wrote: > I have ran into this a few times, and have not found a solution: > > L3 à > > HEà --- blended Provider A --- > Customer > > Cogent -- > Customer > > Cogent of course is cheaper, and customer wishes to use the blended provder > more as backup and/or have most of the inbound traffic coming in the cheaper > path (cogent). The issue appears to be L3 and HE specifically (of course > they make up a good chunk of inbound traffic) always prefers their customer > peers, so even if we advertise any prefix to the blended, those companies > (l3/he) always choose to come in though the customer peer and then to my > customer. > > Any thoughts on how to get around this, and still have some kind of route in > the blended provider for failover? Off list is fine.. Thanks in advance.
Advertise a community to the other providers to localpref your prefixes down to the point of being a backup. 3356:70 should work for Level 3, you will need to talk to HE and/or your blended provider for what to use (and whether they support it). -- -- Jay Hennigan - CCIE #7880 - Network Engineering - [email protected] Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV
