Thanks, The challenge I am facing is to improve the OSPF design of a network that is in production, without changing the existing WAN links. The area 5 is bigger than I think it would be ideal (there are 56 routers) and there is no interesting traffic between all the spoke routers in the area, as Howard mentioned.
In the beginning I were wondering about transforming R1 in an ABR; but I gave up because the stability of the backbone (R1 is not so powerful as the others, R2 and R3). Also, today there are two ABRs in area 5, and it would have just 1 ABR with this change. Now I am considering to change the spoke routers connected to R3 to a new area. Today there is only one exit point for the spoke routers connected to R3, and it would not be changed. R3 would be connected to R2 (through area 0 and area 5) and to R1 (through area 5), as it is today. R2 and R3 would be the ABR for area 5; no changes here. R1 has an ATM link to its two ABRs, R2 and R3. The main link is to R2; the link to R3 is a backup. R3 would participate in area 5 just because the existing WAN link to R1. R3 would be the ABR for the new area, probably area 6. The benefit is a small database for area 5 and area 6, without flooding information where it is not useful. Is there a document explaining the rules of summarization when there are two ABRs on a area? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72712&t=72587 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
