Enterasys Matrix DFE-Gold Series

Configuring Load Sharing Network Address Translation (LSNAT) persistence level
19-26 LSNAT Configuration
Parameters
Defaults
Ifnotspecified,persistencelevelissettoTCP.
Mode
Routercommand,SLBVirtualServerConfigurationmode:Matrix>Router(config‐slb‐vserver)#
Usage
See“SessionPersistence”onpage 19‐2formoreinformation.
The“no”formofthiscommandresetsthetimeouttothedefaultof240secondsforTCP,7200
secondsforSSL,and7200secondsforSticky.
Examples
ThisexampleshowshowtosettheTCPsessionpersistencetimeoutto360secondsonthevirtual
servernamed“virtual‐http”:
Matrix>Router(config)#ip slb serverfarm httpserver
Matrix>Router(config-slb-sfarm)#real 10.1.2.1 port 80
Matrix>Router(config-slb-real)#inservice
Matrix>Router(config-slb-real)#exit
Matrix>Router(config-slb-sfarm)#real 10.1.2.3 port 80
Matrix>Router(config-slb-real)#inservice
Matrix>Router(config-slb-real)#exit
Matrix>Router(config-slb-sfarm)#exit
Matrix>Router(config)#ip slb vserver virtual-http
Matrix>Router(config-slb-vserver)#serverfarm httpserver
Matrix>Router(config-slb-vserver)#virtual 10.1.4.5 tcp www
Matrix>Router(config-slb-vserver)#persistence level tcp 360
Matrix>Router(config-slb-vserver)#inservice
tcp|ssl|sticky (Optional)Specifiesthetypeofbindingthatisusedtoconnectaclient
toaserver.TCPisthedefault.
TCPwillbindbasedonfourfieldswithinthepackets(sourceIP
address,destinationIPaddress,sourceport,anddestinationport).
SSLwillbindbasedonsource
IPaddress,destinationIPaddress,and
destinationport.
StickywillconfigurestickypersistencebasedonsourceIPaddress,
destinationIPaddress.Thisparameterisusedinconjunctionwiththe
stickycommanddescribedin“sticky”onpage 19 ‐10
timeperiod Specifiesthetime(inseconds)afterwhichabindingconnection
betweenclients
andthevirtualserverwillberemoved.Defaulttimeout
valuesare:
TCP:240seconds
SSL:7200seconds
Sticky:7200seconds