[cisco-voip] Simple Home QoS

[Linsemier, Matthew]

Tad,

>From what I understand about the switch in the 7940 phone this is just
be a coincidence.  Any traffic that comes from the 10/100 PC port is
supposed to be marked down to CoS0, while it marks its own traffic CoS5
and DSCP EF.  That being said, any voice traffic that you may have on
your PC (such as a softphone) or another 7940 plugged into your switch
will be marked CoS0 when it enters the phone switch.  When it leaves the
10/100 SW port, it will have these markings.  Your PIX just passes the
traffic out to your DSL/Cable proider in a FIFO method.  Newer versions
of the PIXOS will preserve QoS markings (Such as DSCP, not sure about
CoS) but won't do any queuing or traffic manipulation based on the
markings.  The only way to accomplish this is to put in a device such
that supports traffic matching and priority queuing.  You can accomplish
this with a Cisco 83x/87x series router, or even the newer Linksys
routers have a manual way to prioritize your traffic.  You could look at
something like Hawkings HBB1 (http://www.hawkingtech.com) and put it
outside of your PIX before your DSL/Cable modem if you wanted something
that was more automated.

HTH,

Matt

-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Tad A. Lagestee
Sent: Wednesday, November 01, 2006 11:08 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Simple Home QoS

I was having a problem with my home QoS, especially when sending voice
packets out my network when other uploading services (email, file
transfers, etc.) were occurring on my home network.  I am using a Pix
501, and it's been well documented that Pix's have no QoS.  However,
most QoS problems are easily blamed on your ISP.  

I remembered that the ethernet switch on a 7940 phone had some sort of
QoS prioritization.  So...  I stuck a 7940 between my Pix and my switch.
Guess what?  My QoS problem feels 90% better.  I suppose an 870 router
properly programmed can do the same thing, but my "simple solution" sure
seems easier.  

Am I dreaming?  Any comments or caveats?

---------------------------------------------
 
Sincerely,
 
Tad A. Lagestee

_______________________________________________
cisco-voip mailing list
cisco-voip at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
CONFIDENTIALITY STATEMENT
This communication and any attachments are CONFIDENTIAL and may
be protected by one or more legal privileges. It is intended
solely for the use of the addressee identified above. If you
are not the intended recipient, any use, disclosure, copying
or distribution of this communication is UNAUTHORIZED. Neither
this information block, the typed name of the sender, nor
anything else in this message is intended to constitute an
electronic signature unless a specific statement to the
contrary is included in this message. If you have received this
communication in error, please immediately contact me and delete
this communication from your computer. Thank you.