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Belyivulk
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Backup

Wed May 14, 2008 8:32 am

Hi Guru's

We are wanting to set up a solution for our 'Edge' router that will involve automatic failover in the event of any type of failure of the primary.

The only hitch we can see is that its not practical for us to have two antennas / cable runs, so how can we have two routers side by side, sharing one cable run / radio (safely) with automatic failover in the event the primary becomes unreachable?

Cheers in advance!
 
ste
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Re: Backup

Wed May 14, 2008 10:04 am

Hi Guru's

We are wanting to set up a solution for our 'Edge' router that will involve automatic failover in the event of any type of failure of the primary.

The only hitch we can see is that its not practical for us to have two antennas / cable runs, so how can we have two routers side by side, sharing one cable run / radio (safely) with automatic failover in the event the primary becomes unreachable?

Cheers in advance!
Hi,

you want to avoid single point of failure. But if you share location, cable-run and antenna
you keep it. So if you have power outage, ligthning, moisture in cable, ... the second
router does not help. The only point you match is a complete dead first router. A half
dead first router (SW-Problem, killed Ethernet, ...) may kill your network even with a
second router in place.
Sharing the cable run means you need a splitter at the side of the routers. This
has influence to the signal quality/strength.

So dont do it this way.

We've a ring topology with uplinks on two different points of the main ring.
Every tower in a ring has at least 2 routers each doing the connection
to one side of the ring. So the main ring and towers are alive when one
router dies. If one tower fails completely only this tower and child-towers
are dead but the rest of the ring is alive.

Stefan
 
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Belyivulk
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Re: Backup

Wed May 14, 2008 10:06 am

Ok, but as stated, its not practical to put another antenna / cable run, in the location where this one router is. We HAVE had trouble with the router failing (thermal issue) and it would be nice if another router had taken over when this happened until we were able to get on site.

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