Alcatel-Lucent AOS-W 6.5.3.x - High Availability Alerting

640| Increasing Network Uptime Through Redundancy and VRRP AOS-W 6.5.3.x| User Guide
10.Click OK. The popup window closes, and the name of the new HA group appears in the HA Group
Configuration field on the Configuration > Advanced Services > Redundancy page.
11.(Optional)Select the Preemption checkbox to require APs that has failed over to a standby to attempt to
connect back to its original active switch once the switch is reachable again. When you enable this setting,
the AP will wait for the time specified by the lms-hold-down-period parameter in the ap system profile
before the AP attempts to switch back from the standby switch to the original switch.
12.(Optional) The standby switch over-subscription feature allows a standby switch to support connections to
standby APs beyond the switch's original rated AP capacity. To enable this feature, click the
Oversubscription checkbox.
13.(Optional) if you defined a pre-shared key in step 9 on page 639, select the State Synchronization
checkbox to enable this feature. (For more information about State Synchronization, see Client State
Synchronization on page 636)
14.(Optional) The inter-switch heartbeat feature allows for faster AP failover from an active switch to a standby
switch by enabling regular heartbeats between a standby switch and an active switch
15.Click Apply.
In the CLI
To configure a High Availability group using the command-line interface, access the CLI in config mode and
issue the following commands. The high availability group profile should be configured with a pair of IPv4
switch addresses and pair of IPv6 switch addresses to allow an IPv4 or IPv6 access point to establish a
connection to a standby switch.
ha group-profile <profile>
clone <profile-name>
controller <ipv4-ip-addr> role active|dual|standby
controller-v6 <ipv6-ip-addr> role active|dual|standby
heartbeat
heartbeat-interval <heartbeat-interval>
heartbeat-threshold <heartbeat-threshold>
no ...
over-subscription
pre-shared-key <key>
preemption
state-sync
A switch using the high availability features must be defined as a member of a high availability group. To add a
switch to the new high availability group, issue following CLI command:
(host)(config)#ha group-membership <ha-group>
High Availability Alerting
Starting from AOS-W 6.5.1.0, new Management Information Bases (MIBs) are introduced to enable the switch
provide the high availability status information to customers. MIBs are divided among different SNMP tables.
With this High Availability Alerting feature enabled, customers can get the required information for network
monitoring. It is explained in the MIBs/SNMP Tables section.
This feature ensures that a customer gets the required notification for monitoring the network in the following
representational situations:
n When the standby tunnel goes down
n When HA failover occurs due to AP-interswitch heartbeat miss