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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Slightly OT: Redundant CPE Switching for DS3
>>> <[email protected]> 12/22/05 12:35:36 PM >>> > >On Thu, Dec 22, 2005 at 12:21:55PM -0700, John Neiberger wrote: >> I'm curious to find out if there is a device that would allow a single >> DS3 to terminate on two different routers, and switch from the primary >> to the backup router if the primary were to fail. I've seen this for >> T1 circuits but I can't find anything for DS3. > > >I'd bet you could make something workable with a DPDT coaxial relay, >driving it from alarm contacts or a relay output of whatever >monitoring system you might already have. The tricky part would >probably be appropriately defining "failure" in order to get it to >automatically switch at the right time without causing more problems >than you started with. > >http://www.rfparts.com/coaxial.html I found what I was looking for, sort of: http://www.dataprobe.com/switch/ab_net.html They have a box that is basically an A/B switch. The failover is not automatic (they have an automatic version for T1) but it is controllable via SNMP/Web/Telnet, and it can also has a feature called Auto-Ping which will cause the switch to trip if the pings fail. However, this box does not detect if the primary CPE has failed, which is what I was hoping to get. However, this is still better than nothing and the price is only $775. John -- |