[AG-TECH] What's typical loss on multicast video/audio?
Markus Buchhorn
Markus.Buchhorn at anu.edu.au
Wed Feb 18 20:14:03 CST 2004
At 18:21 18/02/2004 -0700, Steven Woolsey wrote:
>We had a similar problem. Turned out that the switch which connected our site to the outside world was throttled back from full capacity,
That also reminds me - we once had an older edge switch, L2/L3, which did IGMP snooping. Did a great job at unicast (100Mb/s - line rate across all ports), but couldn't sustain high multicast rates (30Mb/s max, from memory). It also seemed to pulse in performance, just to really confuse things. Discovered it when I borrowed the switch for something else and stuck in a dumb hub, and the hub dramatically outperformed it! :-)
Cheers,
Markus
Markus Buchhorn, ANU Internet Futures Group, |Ph: +61 2 61258810
Markus.Buchhorn at anu.edu.au, mail: Bldg #108 CS&IT |Fx: +61 2 61259805
Australian National University, Canberra 0200 Aust.|Mob: 0417 281429
More information about the ag-tech
mailing list