We're using D-Link DES-3028P switches (24 10/100 + 4 gbit). They also have the DES-3052P which is a 48 port version of the switch. We're paying ~$500, I think for the 24 port version from Graybar.
-Jon ----- Original Message ----- From: "David Gibbons" <[EMAIL PROTECTED]> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users@lists.digium.com> Sent: Monday, October 6, 2008 12:04:44 PM GMT -06:00 US/Canada Central Subject: Re: [asterisk-users] PoE switch recommendations? Right, it takes some doing to find a 1Gb switching phone though we ended up going with a system based on the Cisco 7941G-GE. This model supports all of the needed features including vlan tagging and 1Gb switching. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Augustyn Sent: Monday, October 06, 2008 12:01 PM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: Re: [asterisk-users] PoE switch recommendations? Most phones support only 100M switching though .... Unless you run separate cabling for VoIP and data but then you would not need the 1G uplink. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > David Gibbons > Sent: Monday, October 06, 2008 11:48 AM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] PoE switch recommendations? > > Obviously we don't need 1Gb connections for VOIP :) > > Phones support pass through to the desktop and VLAN tagging. > > The need for 1Gb ports comes from wanting to have 1Gb at the desktop. > > Dave > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Gordon Henderson > Sent: Monday, October 06, 2008 11:29 AM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] PoE switch recommendations? > > On Mon, 6 Oct 2008, Ken D'Ambrosio wrote: > > > Hey, all. We're rolling out VoIP, and I'm wondering about PoE > > recommendations, as we're going to have to replace our > current network > > equipment. My first inclination would be to just plunk > down the cash > > and do a Cisco system, but I'm relatively certain that > would get shot > > down by finance. Any recommendations for a couple-hundred-port > > solution with VLANs, PoE, and QoS? Don't care much if it's in a > > single chassis or not, so long as it has Gbit uplinks. > > I'm curious as to why you want Gb uplinks on the switches? > > If we assume 100Kb/sec per phone .. (gross rounding, using > 100Kb/sec per phone, rather than ~80 - make the sums easier > and builds in a margin) 10 calls per Mb/sec. > > So for a 24-port switch, 24 phones all talking to 24 > extensions off that switch, the max the uplink port is going > to be pushing out is 2.4Mb/sec. > > For 200 extensions, say 9 x 24 port switches, with a single > top-level (non PoE switch) switch with the PBX plugged in > along side the 9 downlinks, that single PBX link will be > carrying 2.4*9 = 22Mb/sec if all phones are in-use at the > same time (and the PBX is carrying media) > > Now you may not want to build the network like that, but it > seems that Gb is overkill just for the VoIP side of things. > (And with that many extensions, I would suggest keeping all > the phones on one set of switches) > > (Then again, it might not be possible to get big PoE switches > without Gb uplinks, so it might be a moot point!) > > So satisfy my curiosity - why Gb uplinks? > > Cheers, > > Gordon > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register > Now: http://www.astricon.net > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register > Now: http://www.astricon.net > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users