3850 - auto qos voip cisco-phone

I am having an issue where it appears that the "auto qos voip cisco-phone" command is marking down my voice packets COS and DSCP values to 0. Anyone else notice this? I am connecting Cisco 7945 phone to the interfaces with this command applied to the interface. I verified that the IP Phone is sending COS = 5 and DSCP = ef to the switchport. I verified the packets inbound to the switchport and the packets outbound as they transit to the destination IP Phone's switchport.

Hi joshua,
What is the IOS-XE version you are running on your 3850 ?
Post your switchport configuration (7945 phone connected)
Here is 3.3 QoS config guide & I noticed it says something like below qouted. So make sure this trust device command is there & your port is configured for standard VoIP port connectivity.(like voice vlan, etc)
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/3se/consolidated_guide/configuration_guide/b_consolidated_3850_3se_cg/b_consolidated_3850_3se_cg_chapter_01101000.html#reference_8A1C35AB2874498F90C4F5600301BE9D
"The trust device device_type interface configuration command is only supported in an auto-QoS configuration, and not as a stand-alone command on the switch. When using the trust device device_type interface configuration command in an auto-QoS configuration, if the connected peer device is not a corresponding device (defined as a device matching your trust policy), both CoS and DSCP values are set to "0" and any input policy will not take effect"
HTH
Rasika
***** Pls rate all useful responses ****

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Cisco 2960x - auto qos voip cisco-phone on access ports

After configuring "auto qos voip cisco-phone" on a stack of 2960x switches, we later noticed that after a power cycle (config was saved first) it went missing when doing a "show run" from the interface configs, on one of the switches (g1/0/1-48 had it applied, then after power cycle it didn't show). However, doing a "show auto qos interface" shows it is still applied to all interfaces g10/1-48.
I try to do "auto qos voip cisco-phone" again on g1/0/1-48, and it shows this:
SwitchStack01(config-if-range)#auto qos voip cisco-phone
AutoQoS Error: AutoQoS already configured
% Range command terminated because it failed on GigabitEthernet1/0/1
If I attempt to remove "auto qos voip cisco-phone", it shows this:
SwitchStack01(config-if-range)#no auto qos voip cisco-phone
AutoQoS Error: AutoQoS not configured
% Range command terminated because it failed on GigabitEthernet1/0/1
When I do a "show run", it is no longer displayed for the first switch of the stack.So is it still applied to the interfaces or not? Is this a bug? Has anyone else experienced this? This has happened to at least a couple stacks of 2960x's we have.
Thanks!

It appears to be a bug in the code. Open a TAC ticket with Cisco and send them the output and the IOS version you are using so they can help you resolve the issue. Most likely, they recommend an upgrade.
HTH

Auto qos voip cisco-phone

Hello,
I am very new to voip, second day. I have configured a 3850 stack to trust cisco phones on the switchports with the auto qos feature. I am interested to know where else I have to apply qos for the policy's to apply. The 3850 stack is uplinked to a 4500x "core". My question is once the qos is applied at the switch port, is everything just grand and my qos will work or does it have to be applied elsewhere.
Thank you.
Dallas

It has to be applied all throughout your network. Ie Core switch, access layer, uplinks to voice servers/gateways and access ports to phones. If you have wireless phones, those will have to be considered as well.

Auto qos voip trust is not supprting my cisco router1800

Please some one help me..
when i am applying
Router(config)# interface FastEthernet0/0
Router(config-if)# auto qos voip trust
it is giving this message
% Invalid input detected at '^' marker.
thats mean i can't apply auto qos voip trust command .. why is it so ??

Hello.
auto qos requires smart L2 interfaces.
In your case, I assume, it's the L3 interface.

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Hello,
I am a little confused on the auto qos voip trust command. I am reading that it should be used on interior switchports like trunk ports connected to another switch. I guess my question is this: If the auto qos voip command tells the switchport to trust the incoming CoS values, then isnt it redundant to tell the port to "trust" the incoming CoS value when the auto qos voip command is already accomplishing this? Or does this have something to do with trusting DSCP values instead of CoS values? If so, why are we trusting DSCP values at the uplinks and not CoS values coming from the IP Phone? Im so confused. Thanks for any light you can shed on this topic.
Chris.

Chris
Yes, the trust value used for "auto qos voip trust" depends on the operation of the port as you say.
And yes when you use the "cisco-phone" option it will trust the values but as you say only if it detects a Cisco IP phone and it does this by using CDP.
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Jon

Unable to issue auto qos voip on CAT2950SX-24 using IOS c2950-i6q4l2-mz.121

Hi,
I am unable to issue the command auto qos voip on the interface fa0/1. I am also not able to see the command using the "?". But based on the Cisco documentation, the IOS is able to support that command. Any can help or have any ideas? Here is the documentation link
http://www.cisco.com/en/US/products/hw/switches/ps628/products_command_reference_chapter09186a00804761fd.html#wp4214415
Thanks

Hi
you can use the below link to find out whether the image installed in your comes with the support for auto qos or not.
http://tools.cisco.com/ITDIT/CFN/jsp/index.jsp
regds

Question about "Auto Qos Voip Trust" on 3560X

Hi,
I applied command "auto qos voip trust" to the uplink interface.
But I found that the interface shown command "auto qos trust" was applied when i show running-config.
Could the command "auto qos voip trust" show in the configuration after i applied?
If not, how can i check the interface that applied "auto qos voip trust"? Thanks!
James Lai

No.
After i aplied "auto qos voip trust" to the interface Gi1/1
When i show running-config, that shown asa below:
interface GigabitEthernet1/1
srr-queue bandwidth share 1 30 35 5
priority-queue out
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auto qos trust
I found that the interface configured as auto qos trust but not auto qos voip trust.
Is the command "auto qos voip trust" no applied to the interface Gi1/1?
How can i apply auto qos voip trust to the interface? Thanks!

Auto qos voip

hi,
can I configure auto qos on ISDN PRI E1 interface?
Thank you.
regards,paolo

Yes, assuming your IOS supports auto qos.
Hope this helps. If so, please rate the post.
Brandon

Auto QoS in physical Interfaces Switch 4507R+E

I'd like to take a doubt, I'm dealing with a customer that has a Core Cisco 4507R + E with 2 Sup WS-X45-SUP7-E and WS-X4748 line cards 3-RJ45-E with IOS version below:
Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-
UNIVERSAL-M), Version 03.02.05.SG RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Tue 31-Jul-12 11:17 by prod_rel_team
Cisco IOS-XE software, Copyright (c) 2005-2010 by cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0. The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY. You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0. For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
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Image text-base: 0x100A1A54, data-base: 0x13CCD2F8
ROM: 15.0(1r)SG5
Jawa Revision 7, Snowtrooper Revision 0x0.0x116
Core4500 uptime is 1 year, 2 days, 5 hours, 21 minutes
Uptime for this control processor is 1 year, 2 days, 5 hours, 23 minutes
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He is implementing ToIP. The topology is structured in the collapsed model where switches etherchannel uplinks have access to 2Gb Core.
On all access switches the "auto qos trust" for uplinks and the "auto qos trust cisco-phone" to access ports was implemented. In Core would have to disassemble the PortChannel, apply auto qos trust in the PortChannel interfaces and ride again.
The doubt is that setting the 4507R + E accepts the QoS on the doors of the Port Channel?
As this Release Notes http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/release/note/OL_27990-01.html
box in Release 3.2.3 does not support QoS on physical ports that composes the PortChannel.

Hi,
In this case as you pointed out, Auto-QoS is not supported on EtherChannel or its member ports. A physical port configured with Auto-QoS is not allowed to become a member of a physical port.
See the link below where you can find details about QOS on etherchannel:
http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/3.1.1SG/configuration/guide/qos.html#wp1563359
Hope this helps.

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I'd leave QoS alone.

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Hi!!
I have two 4500X connected via VSS and on the edge I have 2960X and 3750. All edge switch have Auto QoS configuration activated for voip.
On 4500X I don't have the mls qos or qos only prompt to activate the QoS on the etherchannels.
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I have the following software on my 4500X:
SWITCH-A#sh ver | in IOS
Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSAL-M), Version 03.06.00.E RELEASE SOFTWARE (fc3)
Cisco IOS-XE software, Copyright (c) 2005-2014 by cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
SWITCH-A#
SWITCH-A#sh ver | in ROM
ROM: 15.0(1r)SG11
System returned to ROM by power-on
SWITCH-A#
SWITCH-A#sh license image levels
Module name        Image level Priority Configured Valid license
WS-C4500X-16       entservices 1         NO          entservices
                   ipbase       2         NO          ipbase
Module Name     Role           Current Level     Reboot Level
WS-C4500X-16    Active         ipbase            ipbase
I looked on several docs and they spoke about the mls qos trus cos command but since I can't activate the QoS globally ...
Can someone give me a clue???
Best Regards,
Jose Carlos

Hi Reza!!! Thanks for your reply.
I've looked on the net and found this blog http://blog.lah.io/2013/10/cisco-catalyst-4500-x-etherchannel-auto.html and thought that there is something wrong with my IOS, like a missing license.
I will read your guide and try to configure like that but you must agree that auto qos is far more easy and reliable. Strange that the guy on the blog can configure auto qos...
Best Regards,
Jose Carlos

Catalyst Express 500 802.1q with non-Cisco Phones

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Can anyone advise me on the tricks to getting this to work with the lower end Catalyst Express 500? Or does this switch only support 802.1q with Cisco phones?

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Please rate all posts.

"click to call" posibillity in cisco phones ?

Hello
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I am looking for sollution like in skype :
https://support.skype.com/en/faq/FA12264/what-is-the-skype-add-on
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Skype is working to provide a Click to Call update as close to a Firefox browser update release as possible. The current Skype click to call plugin is compatible with Firefox 26.
Follow the latest Skype Community News
↓ Did my reply answer your question? Accept it as a solution to help others, Thanks. ↓

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3850 - auto qos voip cisco-phone

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