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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

HTTP Cookie Sticky Group Attributes

Begin Pattern Enter the beginning pattern of the HTTP content payload and the pattern

string to match before hashing. If you do not specify a beginning pattern, the

ACE begins parsing immediately after the offset byte. You cannot configure

different beginning and ending patterns for different server farms that are

part of the same traffic classification.

Valid entries are unquoted text strings with no spaces and a maximum of 255

alphanumeric characters. You can enter a text string with spaces provided

that you enclose the entire string in quotation marks ("). The ACE supports

regular expressions for matching string expressions. Table 12-33 lists the

supported characters that you can use for matching string expressions.

End Pattern Enter the pattern that marks the end of hashing. If you do not specify an end

pattern or a length, the ACE continues to parse the data until it reaches the

end of the field or packet, or until it reaches the maximum body parse length.

You cannot configure different beginning and ending patterns for different

server farms that are part of the same traffic classification.

Valid entries are unquoted text strings with no spaces and a maximum of 255

alphanumeric characters. You can enter a text string with spaces provided

that you enclose the entire string in quotation marks ("). The ACE supports

regular expressions for matching string expressions. Table 12-33 lists the

supported characters that you can use for matching string expressions.

Table 7-3 HTTP Cookie Sticky Group Attributes

Field Description

Cookie Name Enter a unique identifier for the cookie. Valid entries are unquoted text

strings with no spaces and a maximum of 64 alphanumeric characters.

Enable Insert Check the check box if the virtual server is to insert a cookie in the

Set-Cookie header of the response from the server to the client. This option

is useful when you want to use a session cookie for persistence but the server

is not currently setting the appropriate cookie. When selected, the virtual

server selects a cookie value that identifies the original server from which

the client received a response. For subsequent connections of the same

transaction, the client uses the cookie to stick to the same server.

Clear the check box to disable cookie insertion.

Browser Expire This option appears for sticky type HTTP Cookie and you select Enable

Insert.

Check this check box to allow the client's browser to expire a cookie when

the session ends. Clear this check box to disable browser expire.

Offset (Bytes) Enter the number of bytes the virtual server is to ignore starting with the first

byte of the cookie. Valid entries are integers from 0 to 999. The default is 0

(zero), which indicates that the virtual server does not exclude any portion

of the cookie.

Table 7-2 HTTP Content Sticky Group Attributes (continued)

Field Description

1 2 ... 286 287 288 289 290 291 292 293 294 295 296 ... 647 648

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