Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 109

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ServerIron ADX Advanced Server Load Balancing Guide 97
53-1002435-01
High availability designs with TCS
2
ServerIronADX(config)# server virtual-name-or-ip Proxy 209.157.22.2
ServerIronADX(config-vs-Proxy)# port 4199 sticky
ServerIronADX(config-vs-Proxy)# port 8080 sticky
ServerIronADX(config-vs-Proxy)# bind 4199 Cache-Server1 4199 Cache-Server2 4199
ServerIronADX(config-vs-Proxy)# bind 8080 Cache-Server1 8080 Cache-Server2 8080
ServerIronADX(config-vs-Proxy)# exit
The commands above configure a virtual IP address (VIP) to take the place of the Proxy IP address
to which some of the client browsers are directing their web requests. The IP address specified with
the server virtual-name-or-ip command is the IP address that is configured as the proxy on some
clients’ web browsers. The port 4199 sticky and port 8080 sticky commands add the ports and
also make them “sticky”. When a port is sticky, once a client session is established on the port, the
ServerIron ADX’s load balancing mechanism (used for the proxy) sends subsequent packets in the
same session to the same cache server. The sticky parameter is not required in this configuration
but it can streamline cache performance by keeping client sessions on the same cache servers.
The bind commands create table entries in the ServerIron ADX that associate the cache servers
and their HTTP ports with the Proxy VIP.
ServerIronADX(config)# server cache-group 1
ServerIronADX(config-tc-1)# cache-name Cache-Server1
ServerIronADX(config-tc-1)# cache-name Cache-Server2
ServerIronADX(config-tc-1)# write mem
The commands above add the cache servers to a cache group, then save the configuration
changes to the ServerIron ADX’s startup-config file.
High availability designs with TCS
Layer 3 TCS
The following sections illustrate Layer 3 TCS support in the following configurations:
“Layer 3 basic TCS configuration” on page 98
“Layer 3 active-active TCS configuration” on page 99
“Layer 3 active-active TCS configuration with a remote cache server” on page 102
“Layer 3 Sym-Active SLB with TCS” on page 105
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