WebSphere Application Server and HTTP Session Affinity

I was chatting to a colleague about this, and thought it'd be worth writing down for future reference.

He was asking about HTTP Session Affinity between a client/browser and a downstream WebSphere Application Server (WAS) cluster.

I explained that the WebSphere Plugin can leverage Session Affinity using the JSESSIONID cookie, as described here: -

Source: Webcast replay: WebSphere Application Server 6.1 Plug-in: Technical Overview

and this: -

Source: Webcast Replay: WebSphere Plug-in Session Affinity and Load Balancing