> Hi, > > I have 2 routers configured with HSRP and running BGP with single ISP. For > outbound traffic, it will go through the Active HSRP router. > > How about Inbound traffic? Can the Inbound traffic be 'load shared'? (The > ISP already make the same preference on our route advertised) > > Or the Inbound traffic can only route back to active router link? >
You get back what you advertise out. So if you want some traffic to take one link and other traffic to take the other link, then you need to advertise it that way. Let's say you have a /24 netblock. You can advertise the first half of addresses (/25) out router A and the back half (/25) out router B. Then, take it a step further by also advertising the whole /24 block out both. This way, should one link fail, the other will pick up the traffic initially destined for the failed link. This based off of the longest-match rule. Please note - my example uses a /24 split into 2 /25s. Most providers won't accept (more specifically, won't advertise to their peers) any block smaller than a /24. There are some exceptions (such as having leased your netblock from that provider). Ask your provider what their policy is. Either way, work with your provider to get the advertisements setup correctly. This is the beauty of BGP. It has all the knobs you need for such requirements. HTH, -chris Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=59739&t=59735 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
