[Kamailio-Users] Redundancy and fault-tolerance

Iñaki Baz Castillo ibc at aliax.net
Tue Mar 3 11:24:05 CET 2009

2009/3/3 Juha Heinanen <jh at tutpro.com>:

> what if network connection to the active node has failed?

What do you mean exactly? do you mean the connection between nodes?
Connection between nodes (for pinging and status sending) can be
achieved via various ETH interfaces or serial link. If node 2 detects
that node 1 doesnt' reply then node 2 takes the control of the virtual
IP and services.

Note that HeartBeat-v2 allows more complex escenarios with various
nodes and groups of services running in different nodes at the same

> can the
> hearbeat monitor be located on a third monitoring host that really has
> vision on how the service looks like from outside?  if not, i'm not
> still convinced.

HA runs on several nodes, and all the nodes send status information to
others. It's not a centralized monitorization system but a distributed

Iñaki Baz Castillo
<ibc at aliax.net>

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