I am also using radius accounting on my ISDN primary rate interface
(Cisco 4500). This too is working fine..
One minor problem though. On my Cisco 4500 I am getting occaisional
Apr 22 01:06:22 10.3.2.2 68242: %RADIUS-3-ALLDEADSERVER: No active
radius servers found.
Apr 22 01:06:38 10.3.2.2 68254: %RADIUS-6-SERVERALIVE: Radius server
10.3.0.8 is responding again (previously dead).
Everything seems to be working fine on the routers. I don't have syslog
running on the 2511 so I can't tell at this stage if it is doing the