i have 2 X cat6k (1 for users and second for servers) connected to each other via 4 ethernet links point to point. routing protocol is ospf with max-path enabled.
there are about 100 useres that need to talk with 8 servers - so i have several different sessions.
i want to have load balancing via cef for all 4 links. - i am using the default cef configuration.
the problem is that i can see sessions only on 3 links, the 4th link is idle.
how does the cef working on cat6k?
>> the problem is that i can see sessions only on 3 links, the 4th link is idle.
IP OSPF cost may be manually set to an higher value
the 4th link is in a different OSPF area
both can be checked with show ip ospf interface type x/y
mazimum-paths is set to 3 (unlikely of course)
4th link is in a different routing table (VRF)
>> how does the cef working on cat6k?
(IP SA less meaningful two bits) EXOR (IP DA less meaningful two bits) EXOR hash value (this last can change at device reload)
Hope to help
>> so if i have the server ip address to be consecutive
This shouldn't be a problem as the less meaningful bits changes
x.x.x.7 -> 11
x.x.x.8 -> 00
x.x.x.9 -> 01
x.x.x.10 -> 10
Hope to help
Do you see all 4 links in the routing table? If so you can try "show mls cef exact-route