>Some thoughts that you might want to consider... >The vdsl box runs at speeds "up to 15 meg". That translates into the longer >the copper loop, the slower the speed. You'll probably want to accurately >measure the copper loop length and translate that into some 'expected' speed. >Probably won't be 15 meg, and whatever the documentation suggests, it >will likely be a fair amount slower then that.
>Does the vdsl truly operate in a full duplex mode with equal bandwidth >in either direction? >We've worked with many corporations and institutions in over 40 states >doing network performance assessments, and seldom (if ever) do bonded >interfaces actually work the way that you might think they work. I've not >spent any time with the linux bonding that you're considering, but you >might want to better understand exactly how that works. E.g., some bonding >actually functions at 'per packet' level, which implies the maximum speed >of any single packet is the speed of one vdsl circuit. >If one of the bonded circuits has errors, what impact does it have on the >other three error-free circuits. (Its not uncommon for one interface to >have very significant impact on all other interfaces.) >If all of the above can be answered with positive thoughts, you'll still >want to consider some form of QoS on those links to ensure the voip >packets are not held in a queue. Good suggestions, thanks. I'm going to build a prototype and do some analysis. If it's good, I'll post to the list. _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
