Technical data

Brocade ServerIron ADX Advanced Server Load Balancing Guide 25
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SIP SLB over TCP
1
Rehashing the SIP hash table
This section describes the commands for hash table management.
Manual rehash
Use the server sip-hash-table-rehash command to manually rehash the hash table.
ServerIronADX(config)#server sip-hash-table-rehash vip1 sip registrar-table
Syntax: server sip-hash-table-rehash virtual server name virtual port registrar-table | proxy-table
Automatic rehash
Use the server sip-hash-table-idle command to set the hash table idle time for real server
replacement.
ServerIronADX#server sip-hash-table-idle 300000
Syntax: server sip-hash-table-idle sip-hash-table-idle-time
The sip-hash-table-idle-time variable is measured in seconds. The default is 1000 seconds.
NOTE
With this command, if the real server has been idling for the sip-hash-table-idle-time value or is not
reachable due to health check, then it will be replaced with a new healthy real server on arrival of
new packets to the hash bucket. The replacement algorithm attempts to achieve equal distribution
of hash-buckets among available healthy real servers. The system will continue to assign idle or
failed server hash-buckets to another healthy server until it reaches equilibrium.
NOTE
Setting the idle time to 0 redistributes the hash buckets to include new healthy real servers.