Cisco Cisco IOS Software Release 12.4(15)XM Références techniques

The no virtual command is allowed only if the virtual server was removed from service by the no 
inservice command. 

For some applications, it is not feasible to configure all the virtual server TCP or UDP port numbers for 
the IOS SLB feature. To support such applications, you can configure IOS SLB virtual servers to accept 
flows destined for all ports. To configure an all-port virtual server, specify a port number of 0.

In general, you should use port-bound virtual servers instead of all-port virtual servers. When you use 
all-port virtual servers, flows can be passed to servers for which no application port exists. When servers 
reject these flows, IOS SLB might fail the server and remove it from load balancing. 

The following example specifies that the virtual server with the IP address 10.0.0.1 performs load 
balancing for TCP connections for the port named www. The virtual server processes HTTP requests. 

ip slb vserver PUBLIC_HTTP 

virtual 10.0.0.1 tcp www

The following example illustrates how to enable the Mobile IP SLB feature. The ip address is the virtual 
Home Agent address to which registration requests from PDSN/FA will be sent. This command is 
configured on the SLB Supervisor.

Router(config)# ip slb vserver <name>

Router(config-slb-vserver)# virtual ip address udp 434 service ip mobile

12.0(7)XE 

This command was introduced.

12.1(5)T

This command was integrated into Cisco IOS Release 12.1(5)T.

Identifies a virtual server.

Displays information about the virtual servers.