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Device Manager Guide, Cisco ACE 4700 Series Application Control Engine Appliance

OL-26645-02

Chapter 5 Configuring Virtual Servers

Configuring Virtual Servers

Table 5-13 Sticky Group Attributes

Field Description

Group Name Enter a unique identifier for the sticky type. You can either accept the automatically incremented

entry given or you can enter your own. Valid entries are unquoted text strings with no spaces and

a maximum of 64 alphanumeric characters.

Type Select the method to be used when establishing sticky connections:

• HTTP Content—The virtual server is to stick client connections to the same real server based

on a string in the data portion of the HTTP packet. See Table 7-2 for additional configuration

options.

• HTTP Cookie—Indicates that the virtual server is either to learn a cookie from the HTTP

header of a client request or to insert a cookie in the Set-Cookie header of the response from

the server to the client, and then use the learned cookie to provide stickiness between the client

and server for the duration of the transaction.

• HTTP Header—Indicates that the virtual server is to stick client connections to the same real

server based on HTTP headers.

• IP Netmask—Indicates that the virtual server is to stick a client to the same server for multiple

subsequent connections as needed to complete a transaction using the client source IPv4

address, the destination IPv4 address, or both.

Note If an organization uses a megaproxy to load balance client requests across multiple proxy

servers when a client connects to the Internet, the source IP address is no longer a reliable

indicator of the true source of the request. In this situation, you can use cookies or another

sticky method to ensure session persistence.

• V6 Prefix—Indicates that the virtual server is to stick a client to the same server for multiple

subsequent connections as needed to complete a transaction using the client source IPv6

address, the destination IPv6 address, or both.

• Layer 4 Payload—The virtual server is to stick client connections to the same real server based

on a string in the payload portion of the Layer 4 protocol packet. See Table 7-6 for additional

configuration options.

• RADIUS—The virtual server is to stick client connections to the same real server based on a

RADIUS attribute. See Table 7-7 for additional configuration options.

• RTSP Header—The virtual server is to stick client connections to the same real server based

on the RTSP Session header field. Table 7-8 for additional configuration options.

• SIP Header—The virtual server is to stick client connections to the same real server based on

the SIP Call-ID header field.

Cookie Name This option appears for sticky type HTTP Cookie.

Enter a unique identifier for the cookie. Valid entries are unquoted text strings with no spaces and

a maximum of 64 alphanumeric characters.

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