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

OL-26645-02

Chapter 7 Configuring Stickiness

Configuring Sticky Groups

Type The method to be used when establishing sticky connections:

• HTTP Content—The ACE sticks 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 ACE appliance 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 ACE appliance is to stick client connections to the same real

server based on HTTP headers.

• IP Netmask—Indicates that the ACE appliance is to stick a client to the same server for

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

IP address, the destination IP address, or both based on their IP netmask. You can optionally

configure an IPv6 prefix length with this sticky type.

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.

• IPv6 Prefix—Indicates that the ACE appliance is to stick a client to the same server for

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

IP address, the destination IP address, or both based on their IPv6 prefix. You can optionally

configure an IPv4 netmask with this sticky type.

• Layer 4 Payload—The ACE sticks 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 ACE sticks client connections to the same real server based on a RADIUS

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

• RTSP Header—The ACE sticks client connections to the same real server based on the RTSP

Session header field. See Table 7-8 for additional configuration options.

• SIP Header—The ACE sticks client connections to the same real server based on the SIP

Call-ID header field.

• SSL—The ACE sticks client connections to the same real server based on the SSL session ID.

Note This option is not available with the ACE NPE software version (see the “Information

About the ACE No Payload Encryption Software Version” section on page 1-2).

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.

Table 7-1 Sticky Group Attributes (continued)

Field Description

1 2 ... 282 283 284 285 286 287 288 289 290 291 292 ... 647 648

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