Re: AVAYA IP telephones Over Cisco Switches

Ok Cisco Ip PBX doesn't enforce VLAN. It's the DHCP discover MSG from phone
that could be find DHCP srv on either VLaN. Then once phone gets an IP
address FHCP option tells phone where the TFTP server is. In other words u
can hve everything on one VOICE VLaN. Obviously not the best practice
running data an voice on the same vlan. Some of u are calling this VLAN
switchover but it's not the switchover. Think how phone finds DHCP server
and then DHCP option to get the conf file.
Obviously after phone gets its conf file it will reboot.

Try Avaya PBX and TFTP/FTP server, phone on the same VLAN. It Works
perfectly. Then u can't say VLaN Switover ;)
A AVaya SE confirmed this. I was curious about the switchover word.

In a nutshell, we should stop using switchover word.

On Tuesday, January 10, 2012, Steve Di Bias <sdibias_at_gmail.com> wrote:
> We are using both DHCP option 176 and 242 for our Avaya phones and it
works
> fine.
>
> Option 176
>
MCIPADD=192.168.100.11,MCPORT=1719,L2Q=1,L2QVLAN=200,TFTPSRVR=10.10.2.110,IRSTAT=0
>
> Option 242
> L2Q=1,L2QVLAN=200,VLANTEST=0
>
> For the switchport configurations we use a mixture of both depending upon
> when it was configured
>
> switchport trunke encap dot1q
> switchport mode trunk
> switchport trunk allowed vlan 100,200
>
> OR
>
> switchport mode access
> switchport access vlan 100
> switchport voice vlan 200
>
> What about LLDP? Has anyone got this working between Cisco and Avaya? What
> IOS version?
>
> Thanks!
>
>
> On Sun, Jan 8, 2012 at 11:16 AM, Alistair Clarke <alistair74_at_gmail.com
>wrote:
>
>> The issue here is that the cisco switch cheats by the use of the voice
vlan
>> which makes the port a trunk port even if it is configured as access.
>>
>> as per your question the following config is required.
>> int x/x
>> switchport access vlan 28 (Data VLAN)
>> switchport voice vlan 29 (Voice VLAN)
>>
>> there is no need to make the port native as it is an acccess port.
>>
>> on the DHCP scope you will need a option 246 with the line "
>> L2Q=1,L2QVLAN=29,VLANTEST=10" on the data scope only.
>>
>> The above tells the phone the Voice Vlan is L2QVLAN=29; ie. 29
>>
>> as stated above the phone reboots but this is not that noticable with
newer
>> phones however the phone does come up on the data VLAN first.
>>
>> Let me know if you have any issues
>> On Sat, Jan 7, 2012 at 7:37 PM, <yuribank_at_gmail.com> wrote:
>>
>> > Mahmoud Nossair <mahmoud.nossair_at_gmail.com> wrote:
>> >
>> > >Dear Experts
>> > >
>> > >
>> > >
>> > >How could I configure Cisco Switches to operate with AVAYA ip
telephony,
>> > >Suppose I have two VLANs (Data VLAN 28 and Voice VLAN 29)??????
>> > >
>> > >
>> > >
>> > >For cisco ip telephony I know this configuration:
>> > >
>> > >
>> > >
>> > >interface FastEthernet1/0/2
>> > >description 46xx phone
>> > >switchport access vlan 90
>> > >switchport mode access
>> > >switchport voice vlan 100
>> > >no shut
>> > >
>> > >
>> > >
>> > >what is equivalent configuration for AVAYA IP telephony on cisco
>> switches?
>> > >
>> > >
>> > >Blogs and organic groups at http://www.ccie.net
>> > >
>> >
>_______________________________________________________________________
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>> >
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>> >
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>>
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>>
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>>
>>
>>
>>
>>
>>
>>
>>
>
>
> --
> -Steve Di Bias
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
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Received on Tue Jan 10 2012 - 10:53:32 ART