CAT 3750 QOS+ Polycom Video Conferencing + Voice

I am wondering has anyone out there has a good example or how to Tune DiffServ parameter in IOS 12.2(25)SEA that can get an Optimal response on a T1 WAN Link.
1)Voice: Expedited & rate limited to Not more than 350Kbps
2)Video: about 400Kbps
3)Telnet & other mission critical Apps limited to 200Kbps
4)FTP, HTTP: Ratelimited to 500K
5) Rest of Bandwidth for other traffic.
Any help is appreciated.

Please refer to the QoS configuration guide for tuning the DiffServ parameter.
http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_guide_chapter09186a00803947f0.html

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Video conferencing, voice, VLAN and Catalyst 2950, 3500 and 6500 switches

We have a Cat6500 with MSFC in the COre/Distribution, mix of 2950 and 3524XL in the closets in the HQ. Every closet will be on one VLAN. There are 5 remote sites on a Frame with 768 CIR. There will be one Polycom VC station in the HQ per closet, one Polycom per remote site. Additionally, every PC everywhere will be using desktop NetMeeting for VC. CallManager and IP Phones will be everywhere. My questions are:
1. should I put the Polycom on the same VLAN as the PC's with COS set to 4 at layer 2 and IP Precedence set to 4 at layer3? IP Phones are already on a seperate voice VLAN .
2. Should I put Polycom on it's own VLAN and seperate from the PC VLANs? If I do it this way should I set COS and IP precedence for the PC's with NetMeeting?
3. any sample config. for the Catalyst switches?
Thanks!
Chris

Chris,
Check out this IP telephony design guide. Hope it is of some help to you:
http://www.cisco.com/univercd/cc/td/doc/product/voice/ip_tele/network/

Implementing video conferencing in an existing voice network

I have been tasked with adding two Polycom video conferencing stations to our existing LAN. Currently, we have Voice on VLAN 100 and Data is on VLAN 1. (I know, I know...VLAN 1 ). AutoQoS has been enabled on our switches. My questions: 1) Should the two VC stations be assigned to their own VLAN? 2) Is AutoQoS still an option for me?
This site is connected to our others via VPN over broadband. I realize I can't do end-to-end QoS using this WAN connection, but I'd like to try and push the video to the front of the line as it leaves.
Thanks for your time.

Hello,
Yes you can add your Jetpack to your existing WiFi network, but it is going to take some configuration to get the job done. What you need to perform is a process called "Cascading" your routers together. In a nutshell, two routers cannot exist on the same network unless they know how to communicate to each other. You need to setup the routers so that one is the Primary and the other is the secondary.
How to Cascade Routers:
http://www.wikihow.com/Cascade-Routers
However, the catch with cascading routers when a Jetpack is involved is that a Jetpack is a wireless only device. The USB Tethering feature of the 4620L will not be sufficient for cascading, it must be a WiFi connection that links the Jetpack to the other router. You may have to swap out your current home WiFi router with one that has a wireless bridging feature. A quick example would be the Pepwave Surf Mini.
Here is a diagram of how the new home network could look:
Take a look and let me know if you have any questions. Post your home router model for us to review if you are curious to know if it can connect directly to the Jetpack or not.

Configuring QoS on Cisco 3845 router for Polycom Video Conferecing

Dear All,
We have implemented a Polycom Video Conferecing solution at our Head Office. Using this we communicate with other branch offices through WAN (2mbps, MPLS).
The problem is that this WAN link is also used for data. When the traffic is high on the link, the voice and the video quality goes down drastically and we experience connection drops.
At the moment we have configured our Polycom box to communicate at 512kbps speed and we would like to reserve it in our WAN link. In case, video conferencing is not happening we would like it to be utilised by other traffic.
Can we configure QoS on our Cisco 3845 router to do this? I'm not a Cisco expert and have pressures from Management to correct this before the next conference.
I have already googled a fair bit but couldn't find something for me.
Could someone please tell me the exact commands that need to be given on our router to achieve this.
I'll be very thankful for this help.
Best Regards.

Hi,
You can use something like the following to guarantee 5122k of bandwidth to your video-conferencing bandwidth but to allow that bandwidth to be used by other traffic when it is not being used for video-conferencing:
class-map VDOConf
match ip dscp af41
policy-map WANPolicy
class VDOConf
bandwidth 512
interface
service-policy output WANPolicy
Note that the above assumes that your video conferencing traffic is being marked to AF41. If that is not the case, you can always match on the IP address of your polycom device using an ACL:
class-map VDOConf
match access-group 101
access-list 101 permit ip .....
Hope that helps - pls rate the post if it does.
Paresh

Unable to hear Voice in Video Conferencing.

One of my user has organized the Video Conferencing, where his voice is heard at the other end. But the Presenter is unable to hear the voice.
Have checked the Policies have no issues. What could be the next step to check and share your thoughts.
Thanks,
D

Can the presenter hear any audio at all?
Can you confirm the locations of each user involved in terms of inside the network or connecting via edge?
Please remember, if you see a post that helped you please click "Vote As Helpful" and if it answered your question please click "Mark As Answer".
SWC Unified Communications

Cat. 3750 QoS Queue statistics

Hi all:
Does anyone know a way to see input and output queue statistics like occupation, number of frames discarded due to threshold reached etc ... on a Cat 3750
May be there exists a MIB...
Best regs.

the command "show mls qos interface" should help.
check out the following link for the command reference :
http://www.cisco.com/en/US/products/hw/switches/ps5023/products_command_reference_chapter09186a008017f8ed.html#2418190

Any body know - Video and Voice conferencing from Novell ?

Any body know - Video and Voice conferencing from Novell (product similar on the functional capabilities on Lync-server) ?
Serg

Hello,
I do suppose you are talking about the Novell Teaming + Conferencing solution or products ....
Conferencing is gone ... As far as I know no future @ Novell...
Teaming is now Vibe ....
Stephan

RV082 and video conferencing

RV082 router is not allowing video conferencing through to Polycom 7000 HD. voice comes through but no video.
Have tried several things.
1.) necessary ports ( Polycom provided) forwarded to designated internal ip / firewall acess allowed ( external ips to designated internal ip ) respective port Qos set to high.
2.) set dmzhost to designated internal ip address. Respective port Qos set to high.
3.) enabled Upnp with necessary (Polycom provided) ports forwarded to designated internal ip address.
Is something missed?
Other option is obtain second external ip address and connect to DMZ port. Trying to avoid a second external ip.

multicast passthrough is enabled.
At this point I am leaning towards a bandwidth problem. Since this unit is sharing the local network - there may not be
enough bandwidth the support the video signal but sufficient for voice.

Trying to bypass CAC for Video Conferencing using EnableBWPolicyOverride

Scenario:
CAC enabled and bandwith policy defined for all company sites. Video bandwidth very restricted (250 Kbps).
VIP users were granted a Voice Policy with EnableBWPolicyOverride=TRUE (VIP users must bypass CAC).
Test:
P2P Video Calls between VIP users bypass CAC, allowing high video resolutions (Ok!).
Video Conferences between VIP users don't bypass CAC, limiting video to low resolution (NOT ok).
Is this expected, that Video Conferencing will not respect the EnableBWPolicyOverride=TRUE from the Voice Policy? (I know, it's a VOICE Policy and I'm tlaking about VIDEO. But remember, on P2P video call the bypass worked.
Any ideas?

Hi,
Bandwidth policy override enables administrators to override call admission control policy decisions for a particular user, however, the policy will be overridden only for incoming calls to the user and not for outgoing calls that are placed by
the user. So I think the policy does not apply to video conference.
Best Regards,
Eason Huang
Eason Huang
TechNet Community Support

Video Conferencing with IOS Homogeneous Video Conference Bridge

Dears,
I have CUCM 8.6 and 3945 Cisco router with 2 x PVDM-256
I configured the IOS Homogeneous Video Conference Bridge. and I did the required configurations in the router. and I can see the conferencing bridge is registered.
I put the conference bridge in the existing MRG and MRGL. But I am not able to do video conferencing. I can get only the audio.
is there any thing missing ? any reolad should I do ?

Sure.
So on the gateway that you have the video conference configured, in which we have guranteed voice as the configuration, you will also add in an MTP profile. The MTP profile will be configured as software and have the appropriate codec configured that you may be using because of your regions. We have g722-64 and passthrough on one because we saw the E20's requesting MTP resources from the logs.
We also have additional MTP profiles configured for other codecs to include G729r8, etc.
Register the codecs to CUCM.
It depends on what you are trying to accomplish but we were shooting for w448p thus made sure that the "Region" for the device pool associated with the Media Resource Group for each MTP was set to 1MB for the video bandwidth.
I hope this makes since if not I will try to pull down a config for you

Designing Cisco Video conferencing solution

Hi All,
I need to design a single site Cisco IP Video Conferencing soultion which should support web, chat, ISDN and email etc support.
there will be one conferencing room which will be communicating with other remote or traving users.
the requirement is that remote or travelling users should be able to have the video conferencing facility with the Headoffice(single site) and vise versa.
Any help will be much appreciated.
Regards,
Waqas

I would recommend Cisco unified presence server for your deployment with MPX. That will give you chat, voice and video conferencing. If you dont use MPX then you can only do point-to-point video CUPS on its own doesnt support video conferencing.
YOu can also intergrate with exchange to view meetings and unity to listen to voicemails.
You can use VTA for the remote clients and 7985 for central site or some sort of tanberg phone if you want a larger screen.
The remote users are going to have to have a pretty low latency connection to get good quality video/voice.
HTH
Matt

IP Video conferencing best practice - Tanberg/Cisco hardware

We are currently experiencing intermittant issues with our Video conferencing internal and external network with intermittant screen fragmentation. We have separate VLAN's configured on our internal network for the Video traffic only. We use the movi client on the with the majority of our remote users. I'm wondering what is the best practice based in setting up and support a Video conference network.

Have you set up QoS policies for video?
I have a very good network readiness document you are welcome to, if you want to ping me your email address?
I can't seem to copy it properly into the tech support app on my iPad, drop me an email to [email protected] and I'll send over the info - should help!
Sent from Cisco Technical Support iPad App

Video conferencing & ISDN

I am waiting for my new iMAC with isight built in. Can anyone tell me whether it is possible to hook this up so I can do video conferencing to standard Polycom/Tanberg video conferencing equipment over ISDN lines?
I have ISDN 128k at home (BT Highway) and want to connect to a couple of hospital video conferencing facilities in the hospitals I work in. More or less everything is PC based in the NHS so it's no good asking anyone in the IT departments!
Look forward to your reponses.
Andy

Hello Andrew,
Welcome to Apple Discussions.
I have never used a Poiycom video conference, but, from reports posted here, ohphoneX
b may
be able to do what you want. See its web site for compatibility info, system requirements, and instructions.
Your Polycom/Tanberg Video Conference System Administrator will have to help you with its requirements and what and how you can connect to that system.
If you search iSight Discussions (up one level) for "ohphoneX" (without the quotation marks) you will find several links related to Polycom and other video conference systems.
EZ Jim

Video conferencing with Windows users with the new iMac.

This may be a worn out topic, but I am trying to talk to family in Canada via my new Intel iMac. My family has MSN Messenger and after attempting to use that I quickly found that it isn't compatible.
Please tell me there is some way to utilize my video conferencing capabilities to stay in contact with all my unfortunate Windows using relatives.
Please take into consideration that I am new to the Mac world. I've had this computer now for 2 weeks, though I'm learning quick.
Thanks in advance,
M

Please tell me there is some way to utilize my video
conferencing capabilities to stay in contact with all
my unfortunate Windows using relatives.
You could wait for Microsoft to update the Mac version of Messenger (haha!) but you should probably try using a third party client.
aMSN has support for video and voice using any camera that is supported by QuickTime, http://amsn.sourceforge.net/
Adium is a good general chat client. It doesn't support video or voice but it probably will one day (and it almost certainly will before the official MSN client), http://adiumx.com/

3750 QoS - egress interface

Please guide me to understand the 3750 QoS mechanism.
Q1) DOC say "priority-queue out" is ignore shape and share command. is it meaning always give priority to cos=5(or dscp=ef) traffic regardless the shape command?
Q2) I want to give 10% guaranteed bandwidth to voice traffic. what's best command in the 3750 egress interface? shape only or combine with priority-queue?
Q3) Any doc explained the output for the command "show mls qos interface f1/0/1 statistics"? the meaning of the each field.
Thanks in advance,

Hi,
1. That is correct. The expedite queue is a priority queue, and it is serviced until empty before the other queues are serviced. This has the potential to hog all the bandwidth on an interface....
2. I would use the priorty-queue command as it will give the best jitter and latency characteristics for your voice traffic. If you want to limit this bandwidth, you should do it via policing on ingress interfaces.
3. Check out this link:
http://www.cisco.com/en/US/products/hw/switches/ps5023/products_command_reference_chapter09186a00805023be.html#wp1947019
Hope that helps - pls rate the post if it does.
Regards,
Paresh

CAT 3750 QOS+ Polycom Video Conferencing + Voice

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