Technical data

Brocade ServerIron ADX Advanced Server Load Balancing Guide 135
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Interoperability issues with cache servers
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ServerIronADX(config-vlan-13)#untagged ethe 1/13
ServerIronADX(config-vlan-13)#no spanning-tree
ServerIronADX(config-vlan-13)#exit
ServerIronADX(config)#ip address 192.92.10.6 255.255.255.0
ServerIronADX(config)#ip default-gateway 192.92.10.1
ServerIronADX(config)#ip policy 1 cache tcp 0 global
ServerIronADX(config)#ip policy 2 cache udp 0 global
ServerIronADX(config)#ip policy 3 cache tcp http global
ServerIronADX(config)#ip policy 4 cache tcp rtsp global
ServerIronADX(config)#ip policy 5 cache tcp mms global
ServerIronADX(config)#ip policy 6 cache tcp ftp global
ServerIronADX(config)#mirror ethernet 1/5
ServerIronADX(config)#server backup ethe 1/13 00e0.52c2.8b00
ServerIronADX(config)#server tcp-age 20
ServerIronADX(config)#server udp-age 20
ServerIronADX(config)#no server l4-check
ServerIronADX(config)#server cache-name cache1 192.92.10.22
ServerIronADX(config-rs-cache1)#port http
ServerIronADX(config-rs-cache1)#port http url "HEAD /"
ServerIronADX(config-rs-cache1)#port mms
ServerIronADX(config-rs-cache1)#port rtsp
ServerIronADX(config-rs-cache1)#port ftp
ServerIronADX(config-rs-cache1)#exit
ServerIronADX(config)#server cache-group 1
ServerIronADX(config-tc-1)#cache-name cache1
ServerIronADX(config-tc-1)#exit
Interoperability issues with cache servers
The defaults for many of the ServerIron ADX’s parameters are applicable to most TCS
environments. However, depending on the brand of cache server you use, you might need to make
minor modifications either to the cache server or to the ServerIron ADX for interoperability.
CacheFlow server version 2.x.x and 3.x.x
These versions send HTTP error code 503 in response to an HTTP keep-alive health check sent by
the ServerIron ADX. By default, the ServerIron ADX does not consider this to be a valid health check
response. To work around this issue, configure status code 503 to be a valid response to the health
check. To do so, enter the port http status_code 503 503 command at the configuration level for
the cache server. This issue has not been observed with CacheFlow version 1.x.x.
NetCache servers
When the ServerIron ADX sends a packet to a NetCache server, by default the server addresses its
replies to the packet to the source MAC address of the packet, instead of replying to the MAC
address of the server's default gateway. This causes problems, especially in one-arm routing
configurations.
To work around this issue, enter the following commands on the NetCache server.
priv set advanced
show config.system.fast_ip.enable
set config.system.fast_ip.enable off