From: Yigit Zorlu (yzorlu@tepum.com.tr)
Date: Sat Nov 02 2002 - 03:57:47 GMT-3
I think Tom's question was "How can we configure Cisco IP Phone in non-cisco switch ?" e.g. with 3Com switch. It has to be done in 3Com switch as well. I believe that's one of the main reasons Cisco started to push/promote 802.1q instead of ISL. I believe in that type of situation, it is better to configure static IP address of and the TFTP server address over the IP Phone manually. I will give a try this week.
And another question comes into my mind. What happens do I have a Multi-site Centralized IPTEL topology in remote locations? How can remote site IP Phones reach DHCP server ? I think in that case also we need to manually configure the phones.
Am I missing something?
Yigit
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Armand D
Sent: Friday, November 01, 2002 11:07 PM
To: Tony H.; Bob Usa; tlarus@cox.net; ccielab@groupstudy.com
Subject: Re: OT Probl relating to Interoperability of Cisco IP phones
with non-Cisco switc
Ok. Let me see if I understand.
Does this solutoin as you have described, allow for
the Class of Service bit field to be set ? which the
switch will treat the phone and the data endpoint
differentially ?
Thanks,
Armand
--- "Tony H." <aamercado31@yahoo.com> wrote: > hi
>
> I have the opposite explanation (non ip phone to
> cisco
> switch)...maybe it will give you some insight.
>
> If the ip phone does not send CDP, then you will
> have
> problems in recognizing the voice VLAN:
>
> The workaround is to use DOT1Q trunking with the PC
> data frames as Untagged, while the Voice frames are
> Tagged with VLAN Headers.
>
> However you may (or may not need to configure the
> non-cisco ip phone) For instance in the Avaya, you
> probably need to configure the following:
> 802.1Q = on (default is probably off)
> Vlan ID = your voice vlan #
>
> On the Cat:
> set trunk to dot1Q
> set your vlans
> clear all unneeded vlans off the trunk
>
> For example on a CATIOS (ie 35xx/29xx)
>
> interface FastEthernetx/x
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 200
> switchport mode trunk
> switchport voice vlan 100
> spanning-tree portfast
> no cdp enable
>
> This is what will happen:
>
> The PC traffic be treated as native (data) untagged
> while the ip phone (in this case Avaya) would tag
> voice traffic with the voice VLAN header info and
> send
> it (802.1Q) out the port to the Cat. It should pass
> on both tagged and untagged frames. The Cat will see
> both and do what it is suppose to do as a trunk port
> and segregate voice from data
>
> Hope it helps.
>
>
> --- Bob Usa <boby2kusa@hotmail.com> wrote:
> > It depends on what kind of platform. For
> > 3500XL/2900XL devices you will have
> > to set up the port/interface fro dot1q trunking
> and
> > set the native vlan for
> > the data vlan. Non-Cisco IP phone such as Avaya
> are
> > configure-able to send
> > vlan ID in their packet. For set command switches
> > such as Cat4K, Cat6Ks all
> > you have to do is set the regular vlan for data
> and
> > set the auxiliary vlan for
> > the voice vlan. This is done so you can plug-in a
> > PC to the IP Phones data
> > jack. I have been told that Avaya advice not to
> use
> > auxiliary vlan for now
> > since they have not tested but I find it to work
> > just fine. But you can also
> > trunk the port using dot1q and making the data
> vlan
> > the Native vlan. This
> > helps?
> >
> >
> > ----- Original Message -----
> > From: tlarus@cox.net
> > Sent: Thursday, October 31, 2002 9:17 AM
> > To: ccielab@groupstudy.com
> > Subject: Problem relating to Interoperability of
> > Cisco IP phones with
> > non-Cisco switches
> >
> > How do you set the operational VLAN and admin VLAN
> > on a Cisco IP Phone if the
> > switch you are connecting to network with does not
> > support CDP? Normally a
> > Cisco IP phone learns about what VLANs it is using
> > through CDP communication
> > with a Cisco switch.
> >
> > I wonder if you can have the CallManager tell the
> IP
> > Phone what VLANs it is
> > using. I have not found anything indiacting that
> > this can be done. Even better
> > would be being able to set the VLANs on the phone
> > itself.
> >
> > Thanks in advance,
> > Tom LarusGet more from the Web. FREE MSN Explorer
> > download :
> > http://explorer.msn.com
>
>
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This archive was generated by hypermail 2.1.4 : Tue Dec 03 2002 - 07:22:51 GMT-3