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Operating Systems Solaris Can we configure link based IPMP in private connectivity in Oracle RAC Post 302771036 by DGPickett on Tuesday 19th of February 2013 11:16:47 AM
Old 02-19-2013
Just as easily as it does with any other IP medium. What does it care? It could be PPP or ISDN or hub, and still it is just another IP medium to the same destination. The instructions are how to bond additional IP and names to the path names so communication on the shared IP is sent out on either medium, for both double bandwidth and failover.

Just make sure it is configured with something to watch for outages, as one outage ignored eventually becomes two! RAID5 and the like have this weakness - It starts running on 4 drives but no alert, so nobody ever fixes the fifth drive. A complex medium has many demands n the administrators. Luckily, a cable and two NICs are pretty minimal and reliable. Biggest threat is human tripping on cable!

Remember it is full duplex, so length does not hurt bandwidth, and does very little to latency at a nanosecond a foot or less (speed of light lower in cables due to electromagnetic storage=capacitance and magnetic storage=inductance. The N Ohm rating on the cable says that a light second long cable would draw current like a N ohm resistor for two seconds, and then it depends on what was on the end of the wire. If N ohms load, nothing, else reflected standing wave of voltage (too much resisitance or open) or current (too little resistance or aa short) to destroy transmitter transistors.
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LIEBERT(8)							    NUT Manual								LIEBERT(8)

NAME
liebert - Driver for Liebert contact-closure UPS equipment NOTE
This man page only documents the hardware-specific features of the liebert driver. For information about the core driver, see nutupsdrv(8). SUPPORTED HARDWARE
This driver supports some Liebert UPS equipment with a contact-closure interface. This includes the UPStation GXT2 with their contact-closure cable. The smart mode ("Multilink") cable is not supported by this driver. EXTRA ARGUMENTS
This driver does not support any extra settings in the ups.conf(5). BUGS
This driver does not yet support shutdowns by raising DTR. Be aware that shutdowns are not possible with the stock contact-closure cable. You may have to build another cable with DTR connected through to the UPS for it to work. There is no way for this driver to detect the hardware or cable. It will start up successfully even if no UPS is present. This is a fundamental limitation of any contact-closure driver. SEE ALSO
The core driver: nutupsdrv(8) Internet resources: The NUT (Network UPS Tools) home page: http://www.networkupstools.org/ Network UPS Tools 05/21/2012 LIEBERT(8)
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