Specifications

Virtual servers
BIG-IP® Reference Guide 4-77
other side of the BIG-IP to forward packets to virtual servers receiving
connections from the transparent devices and forwarding them to their
destination.
Tip
If you do not want BIG-IP to load balance your traffic but do want to take
advantage of certain pool attributes, you can instead use a feature called a
forwarding pool. For more information on forwarding pools, see
Forwarding pools, on page 4-47.
Note
If a forwarding virtual server is to have the the same IP address as a node in
an associated VLAN, you must perform some additional configuration tasks.
These tasks consist of: creating a VLAN group that includes the VLAN in
which the node resides, assigning self-IP addresses to the VLAN group, and
disabling the virtual server on the relevant VLAN. For information on
creating VLAN groups and assigning self IP addresses to them, see Chapter
3, Creating VLAN groups, on page 3-14. For information on disabling a
virtual server for a specific VLAN, see Enabling or disabling a virtual
server, on page 4-84.
Virtual server options
For each type of virtual server, you can configure several options. These
options are shown in 4.15.
Option Description
Mirroring
information
You can use mirroring to maintain the same state information in the standby unit that is in the
active unit, allowing transactions such as FTP file transfers to continue as though uninterrupted.
Netmask and
broadcast
You can override the default netmask and broadcast for a network virtual address.
Connection limits You can set a concurrent connection limit on one or more virtual servers.
Translation
properties
You can turn port translation off for a virtual server if you want to use the virtual server to load
balance connections to any service.
Dynamic
connection
rebinding
You can cause any connections that were made to a node address or service to be redirected
to another node, if the original node transitions to a down state.
Last hop pools You can direct reply traffic to the last hop router using a last hop pool. This overrides the
auto_lasthop setting.
Table 4.15 Virtual server configuration options