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Copyright @ 2014 Pepwave
20 Miscellaneous Settings
Themiscellaneous settings include configuration forPPTP Server,Service Forwarding, and Service
Passthrough.
20.1
High Availability
(Available onPepwave MAXHD2 and 700)
The Pepwave MAX supports High Availability (HA) configurations via an open standard Virtual Router
Redundancy Protocol (VRRP, RFC 3768).
In an HA configuration, two Pepwave MAX units provide redundancy and failover in a master-slave
arrangement. In the event that the Master Unit is down, the Slave Unit becomes active.High Availability
will be disabled automatically where there is a Drop-in connection configured on a LAN Bypass port:
In the diagram, the WAN ports of each Pepwave MAX unit connect to the router and to the modem. Both
Pepwave MAX units connect to the same LAN switch via a LAN port.
An elaboration on the technical details of the implementation, by Pepwave MAX, of Virtual Router
Redundancy Protocol (VRRP, RFC 3768) is as follows:
In an HA configuration, the two Pepwave MAX units communicate with each other using VRRP
over the LAN.
The two Pepwave MAX units broadcast heartbeat signals to the LAN at a frequency of one
heartbeat signal per second.
In the event that no heartbeat signal from the Master Pepwave MAX unit is received in 3 seconds
(or longer) since the last heartbeat signal, the Slave Pepwave MAXunit becomes active.
The Slave Pepwave MAX unit initiates the WAN connections, and binds to a previously
configured LAN IP address.
At a subsequent point when the Master Pepwave MAX unit recovers, it will once again become
active.
You can configure High Availability at the following location:
Network>Misc. Settings > High Availability
:
Interface for Master Router
Interface for Slave Router
