[Asterisk-Users] LAN switches with PoE? PoE phones?
Ray Burkholder
ray at oneunified.net
Sun Aug 17 11:09:07 MST 2003
To follow up on this, the Cisco Switches and the Cisco phones will work
together to create two vlans: a prioritized vlan for the phone traffic,
and a secondary 10/100 link for a computer which can be attached to the
phone's second switched ethernet port. Some config is needed in the
switch and router to make this happen properly. I have it running well
with 79x0 phones, 3550 switch, and 1751-V router.
What this means is only one switch port is needed to run both a phone
and a computer. This helps on the switch/phone ROI calcs.
The PoE can also be used to power wireless access points.
Ray Burkholder
519 570 0689 x2002
> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of John Brown
> Sent: August 17, 2003 13:52
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] LAN switches with PoE? PoE phones?
>
>
> Hi Mike,
>
> Cisco makes PoE switches, either at the Cat 29xx or
> the Cat 35xx levels. The 29xx don't have gige uplinks, but
> the 35xx's do via GBIC interfaces. Meaning you will also need
> to get a GBIC media converter depending the media type (copper
> fiber, etc)
>
> And of course Cisco makes PoE based phones 7940 7960
> which work well with *
>
> Grandstream currently requires a wall-wart, but later
> models are suppose to use PoE as well.
>
> I'd personally put the phones on their own subnet so that
> ACL filtering at the router will be easier, static IP alloc
> will be easier.
>
> hope this helps
>
> john brown
> chagres technologies, inc
> sip: 50870 at fwd
> ptsn: (01) 505 830 1200 USA
>
>
>
> On Sun, Aug 17, 2003 at 12:44:43PM -0500, Mike Ciholas wrote:
> >
> > Hi all,
> >
> > I'm looking for recommendations on ethernet switches for a new
> > install. Ideally would want switches with at least 24 ports,
> > ideally with a GE uplink, and that support PoE (power over
> > ethernet) on every port. I've seen lots of switches, and lots of
> > "power hubs", but the combination, which makes a lot of sense,
> > seems rare. What is out there? Do the switches need to be
> > special for IP phones in anyway? QoS support? Managed?
> >
> > Also, are there PoE phones that work with *? Most I look at seem
> > to be powered from AC wall blocks. We'd like to centralize the
> > switching and power and provide a UPS so the phone system works
> > when the power goes out.
> >
> > [Apologies, I'm new to this whole concept of IP phones and *.]
> >
> > --
> > Mike Ciholas (812) 476-2721 voice
> > CIHOLAS Enterprises (812) 476-2881 fax
> > 2626 Kotter Ave, Unit D mikec at ciholas.com
> > Evansville, IN 47715 http://www.ciholas.com
> >
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