User Manual
642 Unified IP MIB Reference
53-1003106-01
Server cache groups
65
Server cache groups
All cache servers must belong to a cache group. The ServerIron device uses a hashing algorithm to
distribute HTTP requests among the servers in the cache group. In addition, cache groups provide
automatic recovery from a failed or otherwise out-of-service Web cache server. If a Web cache
server failure occurs, the ServerIron device detects the failure and directs subsequent requests to
the next available cache server or forwards the request directly to the WAN link. Up to four server
cache groups can be assigned to a ServerIron device.
GSLB group global
The following table contains the objects of Global Server Load Balancing (GSLB) group table.
Name, OID, and syntax Access Description
snL4MaxNumWebCacheGroup
brcdIp.1.1.4.1.40
Syntax: Integer
Read-only Shows the maximum number of Web cache groups that can be
configured on this ServerIron.
snL4MaxNumWebCachePerGroup
brcdIp.1.1.4.1.41
Syntax: Integer
Read-only Shows the maximum number of Web cache servers that a Web
cache group can have.
snL4WebCacheStateful
brcdIp.1.1.4.1.42
Syntax: L4Status
NOTE: This object is not
supported.
Read-write Web cache servers cache-stateful.
Name, OID, and syntax Access Description
snL4EnableGslbHealthCheckIpUp
Trap
brcdIp.1.1.4.1.43
Syntax: Integer
Read-write Indicates if this device has been enabled to generate traps
when an application port in a domain on the site IP address
passes its Layer 4 TCP or UDP health check, resulting in a
status change to up:
• disabled(0)
• enabled(1)
snL4EnableGslbHealthCheckIpDo
wnTrap
brcdIp.1.1.4.1.44
Syntax: Integer
Read-write Indicates if this device has been enabled to generate traps
whenever GSLB determines that the IP address belonging to a
domain name for which the ServerIron is providing GSLB is
DOWN:
• disabled(0)
• enabled(1)
snL4EnableGslbHealthCheckIpPor
tUpTrap
brcdIp.1.1.4.1.45
Syntax: Integer
Read-write Indicates if this device has been enabled to generate traps
when an application port in a domain on the site IP address
passes its Layer 4 TCP or UDP health check, resulting in a
status change to up:
• disabled(0)
• enabled(1)