Extreme Networks Px Series manual 2Self-identifying cookie persistence mode

			Server 1
			10.1.1.1
A	64.1.1.7	www.buystuff.com
	B
E		C
Client	F		Server 2
		D	10.1.1.2
		F
		E
		Cookie:
	serverip=10.1.1.3
			Server 3
			10.1.1.3
			WS_002

Figure 6-2:Self-identifying cookie persistence mode

The following transactions occur in Figure 6-2:

•The website administrator of www.buystuff.com sets up each web server (server 1, server 2, and server 3) to create a cookie that contains the real IP address of the web server.

—Cookies created by server 1 contain IP address 10.1.1.1.

—Cookies created by server 2 contain IP address 10.1.1.2.

—Cookies created by server 3 contain IP address 10.1.1.3.

•The website administrator configures the Px series application switch to use self-identifying cookie persistence mode.

•The client transmits its first TCP request (A) to www.buystuff.com at its publicly-known VIP address, 64.1.1.7.

•The Px series application switch responds (B) on behalf of 64.1.1.7, and the three-way TCP handshake is established between the client and the Px series application switch.

6-6 Px Series Application Switch Installation and Configuration Guide