Yup, it is a traffic engineering (service specific routing) problem. MPLS TE might be one way to solve this. I've honestly not looked at what it would take to get MPLS to run in this environment. However, enabling MPLS on the network would be a major undertaking so I've been looking at what other options might be possible.
Zsomber has suggested using eBGP in order to enforce the policy (thanks). As the proposed network evolves, and direct links are built to many of the other ring routers, the eBGP solution would require running eBGP each link. This doesn't seem like the right path to take. An approach with using 3 OSPF processes and corresponding sub-interfaces leverages features we enable today. Granted we don't run 3 OSPF processes, but we do run one, so it may not be as big a deployment and operation stretch to go this route. As I surfed the net looking for other options, I ran across the concept of logical routers available in JUNOS (6.0?). I just glanced at the web site, and the multiple OSPF process concept seems similar to Juniper's logical router concept. I've attached the Juniper link for those interested. Apologies in advance for doing this on the cisco list... http://www.juniper.net/techpubs/software/junos/junos60/feature-guide-60/html/fg-logical-routers.html Howard C. Berkowitz wrote: > > I freely admit that I've lost the sense of the problem that > actually > needs to be solved, with all the discussion of the various > tables. > Before my brain started to reboot, however, it sounded like it > was a > traffic engineering problem. Has anyone looked at the OSPF > Traffic > Engineering extensions here? > > Also, I got an impression that people didn't want to use MPLS > for a > TE problem. Why? That's essentially what it's for. > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=73943&t=73727 -------------------------------------------------- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
