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/

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Hello!
Please, could you help me? Is it possible to install ISE on Catalyst 2950? In Component Compatibility Guide
http://www.cisco.com/en/US/docs/security/ise/1.0.4/compatibility/ise104_sdt.html
Catalyst 2950 only support 802.1X and VLAN.
At first I need to know about VLAN change(from resticted to corporate). Is Catalyst 2950 support it?
Thaks for help!

this would let both user and machine authenticate. for"5434Endpoint conducted several failed authentications of the same scenario" check Suppress Anomalous Clients option. This issue comes in to picture when endpoint attempts a couple of failed authentications and if Suppress Anomalous Clients option with Reject Requests After Detection is enabled then ISE Policy nodes protect themselves from overwhelming numbers of authentication requests by sending an immediate reject for suppressed clients as opposed to processing all the steps in a normal authentication. So if that user did some authentication failure, he will be locked for 1 hours (bydefault).

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
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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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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.
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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.
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HTH
Matt

SUP failed over manually, voice service failed after FAILOVER, started accessing old voice vlan which was removed from config

Hey guys,
I am pretty sure, my subject is kinda confusing. Sorry about that. Here is what happened.
1. 4510r with Supervisor V 1000BaseX, switched over to standby Sup, then reseated Active SUP, once reseat complete, switched again to get the reseated SUP up and running as Active SUP.
2. a simple maintenance which was supposed to cause no outage and it did not cause any outage as well.
3. however, what i did not notice was, even though the voice vlan was configured to access 2353, they were accessing vlan 453.
4. the change was made 2 weeks prior to this maintenance where voice vlans were previously accessing 453 and they were all changed to access 2353. configs were saved.
5. however, after the maintenance, the running config showed that they were acessing 2353 but when checking the mac address on the interface, it was seen accessing 453.
6. the fix was to remove the config and re add it , that fixed it.
Has anyone else experienced the issue ? What really happened there ?
software version: Version 15.0(2)SG5
#sh module
Chassis Type : WS-C4510R
Power consumed by backplane : 40 Watts
Mod Ports Card Type Model
---+-----+--------------------------------------+------------------+-----------
1 2 Supervisor V 1000BaseX (GBIC) WS-X4516
2 2 Supervisor V 1000BaseX (GBIC) WS-X4516
3 48 10/100/1000BaseT (RJ45)V, Cisco/IEEE WS-X4548-GB-RJ45V
5 48 10/100/1000BaseT (RJ45)V, Cisco/IEEE WS-X4548-GB-RJ45V
6 48 10/100/1000BaseT (RJ45)V, Cisco/IEEE WS-X4548-GB-RJ45V
7 48 10/100/1000BaseT (RJ45)V, Cisco/IEEE WS-X4548-GB-RJ45V
8 48 10/100/1000BaseT (RJ45)V, Cisco/IEEE WS-X4548-GB-RJ45V
9 48 10/100/1000BaseT (RJ45)V, Cisco/IEEE WS-X4548-GB-RJ45V

configs were saved many times prior to the maintenance. i did a " write mem ".

POST error Catalyst 2950

I have a Catalyst 2950 series 12 prt. switch. When the switch is booting I receive the following error: "00:00:13: POST: Packet DA mismatch on port: 9"
What does this message means? Can I still use this port?
Kind regards,

This is part of the power on self test(POST).
The switch sets the interface to loopback and sends
a packet. If anything is wrong or changed with
the packet then you get an error. In this case
the DA (destination address) was changed on
the received packet. I assume since this is a
switch they are referring to the layer2 address.
I would think this would indicate a possible hardware
failure.

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Hi,
Is it possible to have a video conferencing using 2921 CME 8.6 router and 9951 video IP Phone over VSAT Link ?
If yes then what should be the max latency that is acceptable ? What should be the bandwidth ?
Plz help me out with this.
Regards,
Gaurav

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Video conferencing software

I am coding this video conferencing software that 6 people can login and have a videoconference. This is a web-based package using applets. I started using JMF by downloading JMF from sun web site. I also found out this site that give examples.
http://www.cs.odu.edu/~cs778/spring04/lectures/jmfsolutions/examplesindex.html
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Will it go to the place I want?
For now I am testing this issue with this files I found in the Internet.
http://www.cs.odu.edu/~cs778/jmfexamples/AVTransmit2.java
http://www.cs.odu.edu/~cs778/jmfexamples/AVReceive2.java
Am I doing some thing wrong, or am I missing some thing, or will this work fine on the inter net.
I have seen some software�s using java (I think they used java) that do what I want but can�t find out how they did it
When it comes to Internet stuff I am not good. So if any one can give me a working code file it would be a big help
Thank a lot.
If they�re any one that knows how to do this and have a yahoo chat id
[email protected]

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Edited by: lawson_joe on Dec 16, 2007 10:59 PM

SG 200 50-P Voice Vlan

Hi all,
I am not familiar with the graphical interface of the SG 200-50P but I need to configure a dual data and voice vlan on a port.
I disabled globally the smarport and Auto Voice Vlan feature on the switch.
Data Vlan : 2
Voice Vlan: 3
All ports connected between the switches and to the Virtual Machine DHCP server are configured as trunk with the Vlan 2 and 3 "TAGGED"
If I connect an IP phone to a trunk port (Vlan 2 Untagged and Vlan 3 Tagged) which i think thats the appropriate way to do it, the phone will get an IP from the scope of the data vlan (192.168.1.x/24).
If I connect the IP phone to a trunk port (Vlan 2 Tagged and Vlan 3 Untagged), the phone will get an IP from the Voice vlan scope (192.168.3.x/24) but the PC attached to the phone will also have an IP from the voice vlan scope.
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For that problem I configured the following:
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SG300 voice vlan problem with UC520

Hi Forumers'
My problem statement:
- refere to attached topology.png, this is how my network structure look like
- the IP phone after boot cannot get connected, so it can't download the XML config file from UC520. suspicious switching problem.
- my configuration shown at topology.png and my vlan voice config show as voice vlan setting.png
- My requirement is SG300 switch single switchport to carry vlan data and vlan voice.
- what is the trunking mode for voice VLAN siwth a IP phone+data should i configure? is it switchport voice vlan vvid, switchport voice vlan dot1p, switchport voice vlan untagged or switchport voice vlan none to suite above requirement?
thanks
Noel

Hello Noel,
Sorry for the late reply, things have been quite hectic around here lately
1. Why use trunk? the UC520 only have vlan voice (vlan 20)
Do you mean that the data VLAN is handled by another device ? Still I would leave it as a trunk in order to be able manage the UC through the data VLAN. (Unless for security or other reasons you would choose otherwise of course)
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Nothing in particular has to be done for this, CUE is handled and routed inside the UC520, the CUE vlan (default ID =90) is only used if you have another CUE in the network
1. i guess i did this: swithcport tagged vlan 20, untagged vlan 10. is it ok for this setting?
If the Voice Vlan on the switch and on the UC520 has been defined as VLAN 20 (default = VLAN 100) this is perfect. Verify if both on the UC and on the switch, the voice VLAN ID is set to 20.
1. so if i just point the phone to vlan 20 (vlan voice), should i create the LLDP network policy?
If you are ready to configure the VLAN manually on the phone, you don't need the LLDP policy, that is correct.
The LLDP policy is being used for having the phones automatically choose the VLAN you defined, so you don't need to set it manually.
Hope this answers your questions ?
Best regards,
Nico Muselle
Sr. Network Engineer - CCNA

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.

Cat 3750 with Voice VLAN and Dynamic VLANs

Morning,
Has anyone had any success with configuring a Catalyst 3750 with a Voice VLAN (Cisco phones) and 802.1x dynamic VLANs?
Is a RADIUS server able to provide values to change the native vlan?
Is there a decent tech note knocking about for configuring 'dynamic VLAN assignment through MAC addresses'?
Thanks,

Voice VLAN's don't require trunk ports to be configured (unless you are talkling about 2900XL/3500XL switches). Cisco added the ability to trunk a single 802.1q VLAN down an access port in addition to the access vlan - so in 2950 or above the only config you need is:
interface FastEthernet0/1
switchport
switchport mode access
switchport access vlan 10
switchport voice vlan 100
This is effectively the same as:
interface FastEthernet0/1
switchport
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk native vlan 10
switchport trunk allowed vlan 10,100
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With the older 2900XL/3500XL switches you had to configure the interfaces like the second example (plus adding the command switchport voice vlan xx for CDP to inform the IP Phone of the voice vlan).
QoS is not detailed anywhere here and that obviously plays an important role with voice.
In your scenario I am not sure ACS can do what you describe as this will require 802.1x supplicants on the client PC's (I may be wrong here and I do remember someone talking about switches being able to do an 802.1x 'proxy' using the MAC address on behalf of non 802.1x capable devices). This seems to me more of a VMPS application.
Personally I would reconfigure the network each time and charge the occupants a small fee for network setup.....
HTH
Andy

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

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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.
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multicast passthrough is enabled.
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Hello experts,
My client wants to configure the video conferencing facility in the training and event management module. Can somebody advice me on that part as in how to do so?
Thanks and Regards,
Kanika Talwar.

Hi
In Table V_T77TNM_DC
We need to have the below entries
TNM                                              CL_HRTNM_VALO_COMPUT_GUI_FR
TNM       HRTNM00_REPMOD        CL_HRTNM_VALO_COMPUT_GUI_FR
TNM       MP168400                       CL_HRBAS_INFTY_1684_GUI_FR
TNM       RPCTNM9S_REP            CL_HRTNM_INFTY_1036_GUI_FR
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Kenu

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

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