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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>For me, its more of a security issue then
QoS on the LAN. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Craig M Staffin<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, January 19, 2007
10:01 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Tim Medley<br>
<b><span style='font-weight:bold'>Cc:</span></b>
cisco-voip-bounces@puck.nether.net; cisco-voip@puck-nether.net<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [cisco-voip] Nortel
LAN switches and Cisco IP Phones</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
</span></font><font size=2 face=sans-serif><span style='font-size:10.0pt;
font-family:sans-serif'>I know this is going to open a whole long discussion
BUT</span></font> <br>
<br>
<font size=2 face=sans-serif><span style='font-size:10.0pt;font-family:sans-serif'>Is
having your phone traffic seperated really needed. Is QOS on a LAN really
actually needed. I mean come on we all have atleast gig uplinks I want to
see where the buffers on the switch get full enough to slow down traffic over
the 20ms jitter buffer on a local LAN segment or drop packets.</span></font> <br>
<br>
<font size=2 face=sans-serif><span style='font-size:10.0pt;font-family:sans-serif'>Now
over the WAN thats somewhere that QOS definatly needs to be involved.</span></font>
<br>
<br>
<font size=2 face=sans-serif><span style='font-size:10.0pt;font-family:sans-serif'>Just
my thoughts</span></font> <br>
<font size=2 face=sans-serif><span style='font-size:10.0pt;font-family:sans-serif'>Craig<br>
<br>
</span></font><br>
<br>
<o:p></o:p></p>
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<p class=MsoNormal><b><font size=1 face=sans-serif><span style='font-size:
7.5pt;font-family:sans-serif;font-weight:bold'>Tim Medley
<tim.medley@moxieent.com></span></font></b><font size=1
face=sans-serif><span style='font-size:7.5pt;font-family:sans-serif'> </span></font><br>
<font size=1 face=sans-serif><span style='font-size:7.5pt;font-family:sans-serif'>Sent
by: cisco-voip-bounces@puck.nether.net</span></font> <o:p></o:p></p>
<p><font size=1 face=sans-serif><span style='font-size:7.5pt;font-family:
sans-serif'>01/19/2007 11:21 AM</span></font> <o:p></o:p></p>
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<p class=MsoNormal align=right style='text-align:right'><font size=1
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<p class=MsoNormal><font size=1 face=sans-serif><span style='font-size:
7.5pt;font-family:sans-serif'>"cisco-voip@puck-nether.net"
<cisco-voip@puck.nether.net></span></font> <o:p></o:p></p>
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<p class=MsoNormal align=right style='text-align:right'><font size=1
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<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal align=right style='text-align:right'><font size=1
face=sans-serif><span style='font-size:7.5pt;font-family:sans-serif'>Subject</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=1 face=sans-serif><span style='font-size:
7.5pt;font-family:sans-serif'>[cisco-voip] Nortel LAN switches and Cisco IP
Phones</span></font><o:p></o:p></p>
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style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
<br>
<br>
</span></font><font size=1><span style='font-size:7.5pt'>A customer just posed
a question to me and I couldn't find anything on google.</span></font> <br>
<br>
<font size=1><span style='font-size:7.5pt'>Are there any interoperability issue
with using Nortel LAN switches with Cisco IP Phones. The CIO for this customer
is looking to save some $ by using non-cisco ip phones. </span></font> <br>
<br>
<font size=1><span style='font-size:7.5pt'>My first thoughts were that the
Cisco switch provides two things, power and voice vlan support. The nortel
switches do support 802.3af so power should not be an issue. But since CDP is a
cisco proprietary protocol, the nortel switches won't support CDP which means
that the phones will not automatically use the voice vlan for voice traffic.
This just means that the customer would have to do something else to segregate
and QoS the voice traffic such as an acl.</span></font> <br>
<br>
<font size=1><span style='font-size:7.5pt'>Are there any other considerations?</span></font>
<br>
<br>
<br>
<font size=1><span style='font-size:7.5pt'>tm</span></font> <br>
<font size=1><span style='font-size:7.5pt'> </span></font> <br>
<font size=1><span style='font-size:7.5pt'>Tim Medley</span></font> <br>
<font size=1><span style='font-size:7.5pt'>Moxie Enterprises</span></font> <br>
<font size=1><span style='font-size:7.5pt'>Email: </span></font><a
href="mailto:tim.medley@moxieent.com"><font size=1><span style='font-size:7.5pt'>tim.medley@moxieent.com</span></font></a>
<br>
<font size=1><span style='font-size:7.5pt'>Phone: (704) 905-4604</span></font> <br>
<font size=1><span style='font-size:7.5pt'> </span></font> <br>
<br>
<br>
<tt><font size=2 face="Courier New"><span style='font-size:10.0pt'>_______________________________________________</span></font></tt><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><br>
<tt><font face="Courier New">cisco-voip mailing list</font></tt><br>
<tt><font face="Courier New">cisco-voip@puck.nether.net</font></tt><br>
<tt><font face="Courier New">https://puck.nether.net/mailman/listinfo/cisco-voip</font></tt></span></font><o:p></o:p></p>
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