Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) - Manual (Page 73)

Brocade Virtual ADX Server Load Balancing Guide 57
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Configuring Direct Server Return
2
Display the backup bindings
This command is used to display the binding relationship between the servers and the ports.
Syntax: show server backup-server-port-binding
Example
Virtual ADX(config)#server real-name R1 10.10.10.10
Virtual ADX(config-rs-R1)#port http
Virtual ADX(config-rs-R1)#exit
Virtual ADX(config)#server real-name R2 10.10.10.20
Virtual ADX(config-rs-R2)#backup R1
Virtual ADX(config-rs-R2)#port http
Virtual ADX(config-rs-R2)#port http backup R1 http
Virtual ADX(config-rs-R2)#exit
Virtual ADX(config)#show server backup-server-port-binding
Server/Port State - 0: disabled, 1:enabled, 2:failed, 3:test, 4:suspect,
5:grace_dn, 6:active
Real Server rs3:(state 6)
Backup Server : rs2(state 6)
Port 80(state 6) <---------- Port rs2:80(state 6)
Configuring Direct Server Return
In some Brocade Virtual ADX implementations both client-to-server and server-to-client traffic flow
through Brocade Virtual ADX. In such configurations, the Brocade Virtual ADX uses two sessions for
each connection: one session for the client-to-server traffic and a second session is for the
server-to-client traffic.
Direct Server Return (DSR) configurations enhance server response times and increase capacity
on the Brocade Virtual ADX by allowing server responses (server-to-client traffic) to bypass the
Brocade Virtual ADX.
Direct Server Return may be used in many different Brocade Virtual ADX implementations. For
example, it can be used on a single Brocade Virtual ADX supporting a single server farm or applied
to multiple Brocade Virtual ADX devices in the Hot Standby high availability (HA) scenario.