I have several small offices with 2610 routers using WIC-DSU-T1 to an MPLS T1 (private network). We are seeing a large (?) number of transmit discards on the serial interface.
I've been researching and have alternatively seen turn CEF off, turn CEF on, muck around with the buffer size, don't muck around with the buffer size, and the default "buy more bandwidth".
So before I go to my CIO and ask for more bandwidth, what is the optimal configuration for a 2610 serial interface connected to a T1
right now I have
interface serial 0/0
ip address xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx
no ip mroute-cache
no ip route-cache
no ip route-cache cef
Have alternately turned on and off route-cache and route-cache cef to no avail