[AG-TECH] Access Grid vs. Wireless LAN

John Shalf jshalf at lbl.gov
Fri Nov 30 11:58:53 CST 2001

I mistyped in my last message.  If your have a reasonably
smart Cisco switch, you can turn CGMP snooping on (I think I
typed ICMP, but meant to type CGMP).  With the snooping on,
it will only flood ports that have joined the multicast


lujian wrote:
> We experienced the same problem when we receving multicast thr the 11Mbps Lucent Orinoco wireless PCMCIA card, and the wireless  Access Point 500 didn't respond.
> Is it possible to use CGMP or sth to stop flooding multicast data to the Access point?
> Lu Jian
> National Lab of Software Development Environment
> Beijing University of Aeronautics & Astronautics
> P.R.C.
> phone: 86-10-82317603
> fax: 86-10-82317619
> email:lujian at nlsde.buaa.edu.cn
> ÔÚ 2001-11-29 15:08:00 ÄúдµÀ£º
> >It is good networking practice to segment the LAN supporting AG (hopefully
> >capable of 100 Mbps)
> >from a Wireless LAN (likely capable of 10 Mbps).
> >lw
> >
> >At 02:17 PM 11/29/2001, Rob Ellison-Potter wrote:
> >>Hello,
> >>Has anyone experienced any problems with running the Grid and a 802.11b LAN
> >>concurrently.  It appears that when we are active in the Grid we are not
> >>able to successfully logon to our LAN via the Wireless.  It has been
> >>suggested that we have no multicasting going thru the Access Point.   Any
> >>comments and or suggestions would be more than appreciated.
> >>
> >>
> >>Thanks,
> >>
> >>Rob

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