Question : Cisco IOS "service nagle"

When is the appropriate situation to use this service? The Cisco document ISP essentials warned that if i have XRemote users on X window sessions, it is better not to use this service. What is this warning all about?

I would like to run this service on all my 6509s L3 msfc  but I am not too sure what kind of effect it would have on the network.

Answer : Cisco IOS "service nagle"

The Nagle service is a congestion control algorithm that was designed to cut down on keystrokes that were sent across the network. It's pretty harmless and allows you to cache keystrokes on a router/switch so that they don't get repeated across the network. It doesn't work well with Xwindow sessions running under unix. Since your running a 6509, I would recommend against it unless your having some congestion problems on your switch. The backplane of a 6509 show be more than enough to handle most situations.