[cisco-voip] RTP and Bluecoat

[Tim Reimers]

That certainly sounds like an official "Cisco says not to do that" sort
of answer  ;-)
 
Meaning you can now go back to your IT managers and say "we can't do
that to calls, and you have to purchase/find a way NOT to send calls
through that device"
 
;-)
 
I did that with WAN management hw at my previous employer-- they wanted
to do that as well, and once I could get a Cisco rep to say "not a good
idea" - that was all that was needed to kill off that particular bit of
IT management crazy-thinking....they immediately didn't want to do
anything Cisco recommended against.
 
 

________________________________

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Wes Sisk
Sent: Wednesday, April 09, 2008 2:36 PM
To: Nick Griffin
Cc: Cisco VoIP List
Subject: Re: [cisco-voip] RTP and Bluecoat


We've run into a bit of fun with WAN Optimizers, not vendor specific
though:
1. extra delay/latency.  must consider the added delay and latency for
signaling and media thresholds especially related to user experience
2. preservation (or not) of DSCP bits.  we've encountered several WCCP
engines that discard the DSCP bits and thus loose all QoS.

Generally not a good idea for media or signaling traffic for setting up
media.  Of course it can be made to work with careful planning and
observation depending on your resources and motivations.

/Wes

Nick Griffin wrote: 

	Does anyone have any experience good/bad or indifferent
regarding running voice rtp traffic through a blue coat wan optimizer? I
personally don't care for the idea, but it seems the situation has came
up and I'm wondering if you folks have any best practices, gotchas etc,
those of you who have done it in the past.
	
	Thanks in advance
	
	Nick Griffin
	
	
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