Many modern systems have dual NICs. Could you connect your PC direct into the gig, and bridge the two NICs within Windows, then connect the VoIP phone to the computer's NIC. (many modern onboard NICs are even auto-mdi/x so you don't even need a crossover)
Phillip Partipilo Parametric Solutions Inc. Jupiter, Florida (561) 747-6107 -----Original Message----- From: tony patton [mailto:[email protected]] Sent: Tuesday, January 26, 2010 12:00 PM To: NT System Admin Issues Subject: Re: Fw: Managed Switches... Yep, I mean 100Mbps to the desktop via the phone. If I disconnect the phone and connect the cable directly to the desktop, I get 1Gbps Regards Tony Patton Desktop Operations Cavan Ext 8078 Direct Dial 049 435 2878 email: [email protected] From: [email protected] To: "NT System Admin Issues" <[email protected]> Date: 26/01/2010 16:50 Subject: Fw: Managed Switches... Why is 100 Mbps for a VoIP phone an issue? That is the VoIP standard... OR, are you saying the throughput to you your workstation gets throttled to 100 Mbps as well? I can see how that would be annoying. With our system, to get the full funtionality and management of our workstations (our VoIP phones), it is necessary to connect a PC "downstream" from the IP phone (SIP address, etc). In other words, we do not have the option of having PCs and phones on separate wires. Anyway, if this throttling to 100 Mbps is typical for all VoIP systems (our phones are Polycom 430s), then I might have a good answer for our development folks who complain about slow throughput to and from their servers. Something intersting to look into some day soon... -- Richard D. McClary Systems Administrator, Information Technology Group ASPCAR ----- Forwarded by Richard McClary/MWRO/Aspca on 01/26/2010 10:42 AM ----- tony patton <[email protected]> wrote on 01/26/2010 10:35:48 AM: > we have ~2600 phones/desktops all on the same cables, different vlans for > voice & data, qos > > The only issue I have is that the phones we have (Nortel CS1000) are only > 100mbit, if I bypass the phone i have a gig. > > Regards > > Tony Patton > Desktop Operations Cavan > Ext 8078 > Direct Dial 049 435 2878 > email: [email protected] > > > > From: > "Glen Johnson" <[email protected]> > To: > "NT System Admin Issues" <[email protected]> > Date: > 26/01/2010 16:28 > Subject: > RE: Managed Switches... > > > > Well I know we are doing both on one wire and no issues. > We do use separate vlans for voice versus data. > QOS is configured also, > We run our IP camera system on the same network also, I see constant > 45mbit traffic to the server doing the camera recording. > We also use Altiris to image up to 25 workstations at the same time and > I?ve yet to have any issues with voice call quality. > We have about 175 voip phones so I for one think this recommendation is at > least inefficient. Would require double the switch ports and wiring. > At the risk of offending, sounds like something isn?t configured properly > if you need two separate wires, just to support VOIP. > I also know of several colleges much larger than us that are doing the > exact same thing and having great success. > In fact, I just came from a video conference where one of the techs said > they had just deployed 500+ voip phones and related pcs and infrastructure > and it is working great. > > > From: Philip Brothwell [mailto:[email protected]] > Sent: Monday, January 25, 2010 5:28 PM > To: NT System Admin Issues > Subject: Re: Managed Switches... > > +1 > > Whenever possible you should run VoIP on separate wiring. The networking > requirements for VoIP are very different than the requirements for most > data networks. VoIP cares about jitter and latency, data networks care > about speed. The typical VoIP call uses less than 1Kbps of bandwidth but > it wants that bandwidth NOW. Yes, you can (and should) use QoS and VLANS > to help with VoIP but if your network is heavily utilised you will still > have issues. And since the bandwidth requirement for VoIP is low you can > in many cases reuse the existing PBX wiring for VoIP. I have actually > seen enterprise-level VoIP run over CAT 3 cable. (Something I do not > recommend other than as a stop-gap.) > > > > > On Mon, Jan 25, 2010 at 5:19 PM, Kurt Buff <[email protected]> wrote: > You can do this with QoS, and I've seen nothing to indicate that HP is > anything less than stellar in this regard. But if memory serves (it's > been a few years) switches with QoS cost a bit more. Perhaps that's no > longer true. > > At the very least, it simplifies configuration and troubleshooting. > > Also, I don't know what the cost of phones would be for this system, > but cost of switches is not that much, and cost of cabling is > ~&75.00/drop, depending on location. > > OP didn't specify, but I find the use of phones as two-port switches > to which the workstations are appended to be yucky, and fraught with > problems - might as well run the cable separately, because QoS doesn't > do much for you in those situations. > > At the very least, he should consider separate VLANs for VoIP vs. > everything else, along with QoS. > > Kurt > > On Mon, Jan 25, 2010 at 13:27, Brian Desmond <[email protected]> > wrote: > > Why? You might as well just buy a new PBX or upgrade the existing one > and run it on the existing infrastructure if you're going to do that. > Doesn't get you any cost savings... > > > > Thanks, > > Brian Desmond > > [email protected] > > > > c ? 312.731.3132 > > > >> -----Original Message----- > >> From: Kurt Buff [mailto:[email protected]] > >> Sent: Monday, January 25, 2010 3:16 PM > >> To: NT System Admin Issues > >> Subject: Re: Managed Switches... > >> > >> +1 on the HP switches. > >> > >> Further recommendation (which I know won't fly, but I'll make it > >> anyway): Pull the cable needed to keep VoIP separate from everything > else, > >> and get VoIP its own infrastructure. > >> > >> Kurt > >> > >> On Mon, Jan 25, 2010 at 11:05, Reimer, Mark <[email protected]> > >> wrote: > >> > Hi folks, > >> > > >> > > >> > > >> > I need some opinions. > >> > > >> > > >> > > >> > Up until now (don?t laugh), we have been using unmanaged switches, > and > >> > it?s been working. But we hope to implement a VOIP system (probably > >> > based on Asterix software), and there are other factors (VLAN?s for > >> > one) that will require us to install managed switches. > >> > > >> > > >> > > >> > I know Cisco is the cream of the crop, and the most expensive. I?ve > >> > heard that HP is quite good as well. > >> > > >> > > >> > > >> > So, without starting too many flame wars, can people make a > >> > recommendation, (or a ?unrecommendation?)? > >> > > >> > > >> > > >> > This would be for one physical location, looking at 150-200 drops > >> > scattered throughout campus (we are an educational institution). We > >> > are planning to use the current Ethernet wiring (CAT 5 or better in > >> > all places), with the phone and computer using the same physical > wire. > >> > > >> > > >> > > >> > Thanks in advance. > >> > > >> > > >> > > >> > > >> > > >> > Mark Reimer, A+, MCSA > >> > > >> > Windows Servers & Networking > >> > > >> > Prairie Bible Institute > >> > > >> > Box 4000 > >> > > >> > Three Hills, AB T0M-2N0 > >> > > >> > Canada > >> > > >> > Tel: 403-443-5511, Ext. 3476 > >> > > >> > Fax: 403-443-5540 > >> > > >> > Email: [email protected] > >> > > >> > www.prairie.edu > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > > >> > >> ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ > >> <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > >> > > > > > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ > ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ > > > > > > > ==================================================================== > http://www.quinn-insurance.com > > This e-mail is intended only for the addressee named above. 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