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T-Series Traffic Director Installation, Configuration and Administration Guide
3-25
Configuring Health Checks and Redundancy
>
set HA node -haStatus ENABLED
Done
>
set HA node -helloInterval 200 -deadInterval 3
Done
>
set HA node -haSync ENABLED
Done
The following extra configuration is required only for the T1000-2, which is by default the
secondary:
>
add HA node 1 10.8.130.31
Done
>
set HA node -helloInterval 200 -deadInterval 3
Done
>
set HA node -haSync ENABLED
Done
T1000s on Separate Networks
If the nodes in an HA pair reside on two separate networks, the primary and secondary node
must have independent network configurations. This means that nodes on different networks
cannot share entities such as MIPs, SNIPs, VLANs and routes. This type of configuration,
where the nodes in an HA pair have different configurable parameters, is known as
Independent Network Configuration
(INC) or
Symmetric Network Configuration
(SNC). As
in configuring HA nodes in the same subnet, to configure HA-INC nodes you log on to each
of the two T1000 appliances and add a remote node representing the other appliance. For
instance, if NSIP address of T1000-2 is 192.168.1.100, you can configure HA-INC as
follows:
>
add HA node 1 192.168.1.100 -inc ENABLED
Done
>
set HA node -haStatus ENABLED
Done
>
set HA node -helloInterval 200 -deadInterval 3
Done
>set HA node -haSync ENABLED
Done
Note:
Verify L3 connectivity between the two nodes to ensure that heartbeat packets
are sent and received successfully.
Configuring Route Monitors in HA Mode
An additional requirement that frequently applies to a pair of T1000 units configured for
high-availability (active-failover) is to have them respond to external router failures. For
example, assuming the reference deployment in Figure 3-2, consider the following sequence
of events:
1.
T1000-1 is primary, T1000-2 is secondary.
2.
A failure of some sorts interrupts the communication of T1000-1 with the next hop
wireless router at 172.16.112.65.
3.
The secondary T1000-2 could theoretically communicate with the wireless router
since the relevant Layer-2 path is intact.
Содержание ByteMobile T1010
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