We are running the IOS SLB native IOS to front end some application servers. It has been working very well for a long time. However, I have noticed some problems lately with load balanced servers behind a virtual IP accessing another server farm behind another virtual ip. For example, we have a set of smtp servers the access a VIP for the sendmail servers, then sendmail may need to access a VIP for either Lotus notes server farm and the exchange server farm. If I got straight to the real address of the servers it work instantly. If I use the VIPs for communication there is a few second lag, that become a very big issue when he is a lot of mail comming in.
Has anyone noticed or found issues with load balanced server hitting a VIP for another load balanced server farm...
Please help