User guide

E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
17-37
A
DVANCED
SLB C
OMMANDS
enable slb node <ipaddress> ping-check Enables L3 pinging to the node address.
Ping-check is automatically enabled when
a node is added to a pool.
enable slb node <ipaddress>:<L4Port>
tcp-port-check
Enables L4 port-check to the node
address.
enable slb vip [<vipname> | all] client-persistence
{timeout <seconds>} {mask <mask>}
Enables client persistence and specifies
the timeout and client address mask. In
some circumstance, the client sets up
multiple sessions to the virtual server and
all the sessions needs to be connected to
the same physical node.
Enabling client persistence instructs the
switch to forward new session requests
from the same client (or clients from the
same network using the mask argument) to
the same node. The association between
the client and physical node is removed
after the specified timeout. The default
setting is disabled.
enable slb vip [<vipname> | all] service-check Enables L7 service checking. The service
checks performed are based on the
following information:
■
If a service check is already configured,
then it will use the user configured
service-checking information.
■
If a service-check is not explicitly
configured and a well known port is
used when creating a VIP, then
ExtremeWare will guess the application
based on the well known port number
and start the L7 service checker with
the global default parameters.
enable slb vip [<vipname> | all] sticky-persistence
{timeout <seconds>}
Enables sticky persistence and specifies
the timeout. Sticky persistence is usually
used to load balance firewall and Web
caches. When enabled, the switch forwards
all traffic and new sessions toward a
destination address (or address within
certain subnet boundary specified by the
mask argument) to the same physical
node. The default setting is disabled.
Table 17-4: Advanced SLB Commands
Command Description