H3C Technologies H3C SecBlade LB Cards - Manual (Page 37)

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Item Description
Real Service Group Method
Match criteria for packets accessing the same virtual service to match different
real service groups.
• If you do not select a method, it indicates that only one real service group is
referenced in the virtual service, and there is no need to match different
packets to different real service groups.
• HTTP Content—Matches real service groups according to the contents in the
HTTP header. The contents include the following:
• Accept-Encoding—Matches real service groups according to the
compression mode supported by the client browser defined by the
Accept-Encoding packet header.
• Accept-Language—Matches real service groups according to the language
code supported by the client browser defined by the Accept-Language
packet header.
• Host—Matches real service groups according to the host name carried in the
Host packet header.
• Request-Method—Matches real service groups according to the method
used on the resources identified by the Request-URI.
• URL-File—Matches real service groups according to resource file or file type.
• URL-Function—Matches real service groups according to the resource
obtaining path.
• User-Agent—Matches real service groups according to the client browser
type carried in the User-Agent header.
• Others—Matches real service groups according to any field contained in
other HTTP headers input by users.
• RTSP URL—Matches real service groups according to the resource obtaining
path (namely, the URL-Function of RTSP) of RTSP.
• DHCP Relay Agent IP—Matches real service groups by using the IP address
of the DHCP Relay agent.
IMPORTANT:
• If you select TCP as the protocol, the HTTP Content and RTSP URL match
criteria are supported. If you select UDP as the protocol, DHCP Relay Agent
IP is supported.
• If you select SIP as the persistence method, set the real service group method
to none. Otherwise, load balancing cannot be normally performed.
• If you select Cookie Insert, Cookie Get, or HTTP Header as the persistence
method, do not set the real service group method to RTSP. Otherwise, load
balancing cannot work properly.
Real Service Group
Real service group referenced by the virtual service.
If you do not select a real service group method, you can configure only one real
service group; if you select a real service group method, you can configure
multiple real service groups.
IMPORTANT:
If you select RTSP URL as the real service group method, specify at least one real
service group that matches all packets (namely, no character is specified in the real
service group). Otherwise, load balancing cannot work properly.