> The load balancing act is fine however, if one of the real DNS servers
> fails, it is not removed from the pool and still stays operational.
You don't have a service check for it, so IOS has no means of determining
if it should disable the real server or not. I haven't played w/ slb much,
but read up on DFP docs, as you might be able to swing something there.
(ideally, you want the agent to make sure the server is returning aa for
zones in question, etc).
> ip slb vserver PRI_DNS_UDP
> virtual 10.10.96.2 udp 53
> serverfarm PRI_DNS_FARM
> inservice
You really need to add tcp to this as well. Queries w/ large answers are
forced over to TCP (I believe its in the 512-byte range, but would have to
check rfc to be sure). This also offers another advantage, in that the TCP
failsafes in slb will kick in..
All of this is from documentation, not experience, but check the docs --
even though slb in IOS is really new, the feature set is decent.
..kg..
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:52 EDT