At 12:30 PM 4/25/98 -0400, Al Reuben wrote:
The big question is, what do you do if most of your traffic _is_ asymetrical? I mean, a more basic check could be, "Does the network that this packet was sourced from exist *at all*?", or "Do I have a route back to the source network through *any* interface?"
If your network is configured for shortest-exit routing, the peer routers that you would most likely use this on would have a very symmetrical view on traffic. This would appear to make this option look very enticing.. My major concern in using this is exactly how large of a CPU hit running this function costs. Does anyone have a feel on what this does to RSP2s & 4s on 75xx series routers with a decent amount of tables and traffic? Bri -- Brian Holt Network Engineer Nap.Net, L.L.C. (800)801-3920