/cfg/l3/ha/switch
Switch HA Menu
In Switch HA mode, only one Alteon is active at any given time, and the other is in standby mode. When failover occurs, the Alteon that becomes active sends Gratuitous ARP messages to the non-physical IP addresses (VIPs, PIPs, and floating IP addresses) associated with the Alteon that becomes inactive.
 
[Switch HA Menu]
trigger - Failover Trigger Menu
failback - Define the fail back mode [on failure, always]
pref - Preferred Initial State [active, standby]
addif - Select IP interface for HA communication between the devices
remif - Remove IP interface from HA communication between the devices
def - Define lists of IP interface for HA communication between the devices
adver - Advertisement Interval
order - Failback/Failover order group
srvpbkp - Enable/disable server processing on backup in SWITCH mode
filtpbkp - Enable/disable filter processing on backup in SWITCH mode
haid - Set HA-ID value
cur - Display current Switch HA group configuration
 
Switch HA Menu Options (/cfg/l3/ha/switch) 
Command Syntax and Usage
trigger
 
Displays the Failover trigger menu. To view this menu, see /cfg/l3/ha/switch/trigger Failover Trigger Menu.
failback [onfailure|always]
 
Defines the Alteon failback mode.
Values:
*onfailure — Failback does not occur if all tracked resources are available on the active Alteon.
*always — Failback to the Alteon with preferred state set to active occurs when that Alteon becomes available.
Default: onfailure
pref [active|standby]
 
Defines the Alteon preferred initial state.
The preferred initial state is relevant and configurable only when the failback mode is always.
The preferred initial state should be active for one of the Alteons in an HA pair, and standby for the other.
If both Alteon platforms have the same preferred initial state, the system arbitrarily selects the active Alteon.
Values:
*active
*standby
Default: standby
addif
 
Sets an IP interface for communication between the Alteon platforms in the HA pair.
You must set a peer IP address for each interface.
remif
 
Removes an IP interface from communication between the Alteon platforms in the HA pair.
def
 
Defines the list of IP interfaces available for communication between the Alteon platforms in the HA pair.
adver
 
Sets the length of time, in seconds, between Alteon primary advertisements.
order [0-255]
 
Failback/Failover order is an extension of Switch HA mode that enables failover within a cluster of more than two (and up to four) Alteons.
There is always a single primary in a cluster, based on priority and a Failback/Failover order value, as follows:
*When there is a single Alteon with the highest priority, this Alteon becomes the primary. (Priority is not configurable, and is derived from real servers and gateway tracking.)
*When multiple Alteons share the highest priority, the Alteon among them with the lowest order value becomes the primary.
*When multiple Alteons share the highest priority and the lowest order value, there is an internal bidding process that takes place to determine the primary.
Note: In topologies with multiple Alteon peers, session mirroring should be in broadcast mode, not unicast. To avoid a broadcast storm over the network due to session mirroring, Radware recommends allocating a special VLAN for this purpose.
Default: 255
Note: Radware recommends that you change the default value.
srvpbkp disable|enable
 
Enables or disables server processing on backup in HA Switch mode.
Note: This option is available only in the Command Line Interface and not in the Web Based Management interface.
filtpbkp disable|enable
 
Enables or disables filter processing on backup in HA Switch mode.
Values:
*disable — The backup Alteon performs filter processing.
*enable — If the destination MAC is not associated with the backup Alteon, filter processing is skipped and the backup Alteon routes the traffic to the primary Alteon.
Response traffic from the primary Alteon is routed directly to the clients without reaching the backup Alteon.
Default: disable
haid [0-255]
 
Specifies the identifier for an Alteon pair configured for high availability when two such pairs use the same switch and VLAN.
In a network configuration with more than one pair of Alteons in the same subnet, and where Switch HA mode is in use, Alteon pairs might have the same floating MAC address. Network issues may occur when multiple devices share the same MAC address because the floating MAC address depends on the HA ID and vADCs with the same HA ID will have the same floating MAC address.
To resolve this issue, make sure that HA IDs are unique in the subnet/VLAN.
Default: 0
Note: When set to 0, Alteon ignores the HA ID.
cur
 
Displays the current high availability configuration.