ROBERT@VM1.MCGILL.CA (Robert Craig) (04/10/90)
We are trying to balance the load between two sites, using 2 parallel 56kbps circuits. We are using IGRP. The second (new) line is barely used, the old one just as congested as ever. The problem as I see it is the ip route-cache. (Note: this is not the routing database, but the cache which says to get to network x send out interface y--the contents of this cache are displayed using the show ip route-cache command). Route-caching may be disabled on an interface basis, but this does not affect the contents of the cache. Is there a way (undocumented, as far as I can tell) to clear this cache, short of powering off the router? Robert Craig domain: robert@vm1.mcgill.ca Network Analyst bitnet: robert@mcgill1 McGill University Computing Centre Tel: (514) 398-3710 (office) 805 Sherbrooke St. W. FAX: (514) 398-6876 Montreal, Quebec H3A 2K6 CORISQ: (514) 398-RISQ
rwf@cisco.com (Robert W. Fletcher Jr.) (04/11/90)
>> > The problem as I see it is the ip route-cache. >> >> You're right. We adivise customers with slow serial lines to turn off >> the cache. 56KB definitely qualifies as slow in this context. >> >> > Route-caching may be disabled on an interface basis, >> > but this does not affect the contents of the cache. >> >> This looks kind of bug-like. I'll see about getting it fixed. The command no ip route-cache invalidates the cache -- we do not purge/flush the entries. The stale entry will be flushed 30 minutes later. Valid ip cache entries are flaged with an *, on the show ip cache output. Fletcher