User guide

E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
17-27
U
SING
H
IGH
A
VAILABILITY
S
YSTEM
F
EATURES
You can only activate sticky persistence on wildcard virtual servers.
To configure sticky persistence, use this command:
enable slb vip [<vipname> | all] sticky-persistence {timeout <seconds>}
U
SING
H
IGH
A
VAILABILITY
S
YSTEM
F
EATURES
The switch supports several advanced redundant system features. Advanced redundant
system features provide additional assurance that your content is available if a switch
experiences a problem. The advanced redundant system options include:
• Redundant SLB
• Ping-check
• Active-active operation
• Manual fail-back
• Setting a specific switch to be the preferred active SLB
R
EDUNDANT
SLB
The switch supports a failover process that uses a redundant configuration of two
switches. If one switch fails, the second switch takes over the SLB duties of the first. By
preparing a redundant switch for the possibility of failover, you effectively maintain
your site's reliability and availability in advance.
The switches can be configured so that both perform SLB simultaneously. This type of
operation is called active-active.
To configure failover, use the following commands:
config slb failover unit [1 | 2] remote-ip <ipaddress> local-ip
<ipaddress>:<L4Port> {alive-frequency <seconds> timeout <seconds>}
{dead-frequency <seconds>}
enable slb failover