QOS voip

Good day.
I want to implement qos to priorise voice on other traffic.I have a router 1710 and behind (lan side) it computer and ipphone all set on private address 192.168.1.x.
The ip phone use sip signalisation.
On wan side the ip address of router is 196.202.234.162.
how can configure it please ?
Any suggest will be appreciate

HI
I think at You can use the QoS ACLs in this issue.
Simple example:
access-list 103 permit any any udp eq 5060 (SIP Signaling)
access-list 103 permit any any tcp eq 5060 (SIP Signaling)
access-list 103 permit any any udp range 11000 39000 (MEDIA)
class-map voip1
match access-group 103
policy-map voipsip
class voip1
set ip dscp 56
Interface Fast ethernet x/x
service-policy input voipsip
service-policy output voipsip
rgds,
Ismo

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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.
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SwitchStack01(config-if-range)#auto qos voip cisco-phone
AutoQoS Error: AutoQoS already configured
% Range command terminated because it failed on GigabitEthernet1/0/1
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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

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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

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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
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HTH
Rasika
***** Pls rate all useful responses ****

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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.
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Hi,
I applied command "auto qos voip trust" to the uplink interface.
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Could the command "auto qos voip trust" show in the configuration after i applied?
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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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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?
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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
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% Invalid input detected at '^' marker.
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Hello.
auto qos requires smart L2 interfaces.
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Q.2. flash upgrades to the phone sets are tftp. Should this traffic be assigned COS=0 or the same cos as the signalling traffic ? Phone flash gets corrupted if some of these packets are lost ?
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Hello,
best practice puts signaling into another class than voip "payload" as you named it.
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TFTP can be placed into signaling class or in a separate class.
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ip cef
class-map match-any VoIP
match ip dscp ef cs5
match protocol rtp audio
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match ip dscp cs3
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match protocol tftp
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class TFTP
bandwidth remaining percent 5
class class-default
fair-queue
random-detect
interface Serial0
ip address ...
service-policy output VoIPprio
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Hope this helps

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.
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Hi,
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HTH
Padma

Auto qos voip

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

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Hope this helps. If so, please rate the post.
Brandon

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I'm at a site that has Layer 3 Cisco switches and routers end to end. Cisco IP phones plug directly into Layer 3 switches with various routers in the core.
1) If all connections are Layer 3 do I need to concern myself with trusing COS? I would trust DSCP in this case yes?
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Thanks, Mike

Hi
1) Yep - no trunk (dot1q/ISL) = no CoS as it's in the trunk header, so use DSCP.
2) Yep, traffic will be marked. You can trust it, or trust it conditionally in a service policy and police it.
3) Yep, more or less. It's very important that on any switches that have QoS enabled, you have proper trust states set on all the ports, otherwise the DSCP will be remarked to 0. This is worse that not particularly prioritizing voice on a particular device, as no other devices further down the chain will see any DSCP markings to act on.
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Regards
Aaron
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Hi Guys,
I'll be deploying the new jabber client for a customer and i'm unsure of what QoS to configure on the switch ports for end users. Users will also have 7942 handsets, so if i configure auto qos voip cisco-phone, I doubt this will protect the voice/video for Jabber.
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Cheers,
James

Hi,
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http://www.cisco.com/univercd/cc/td/doc/solution/esm/qossrnd.pdf
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2960-X vs 2960 QOS

I am configuring QOS for some 2960-X's for a new deployment that also has some 2960's. The current 2960's already have auto qos configured. When I configured auto qos voip trust for the 2960-X, I noticed there were not any ingress queues and the all of the numbers for the queues were different. Should this be a concern at all if the switches are trunked together or even if they aren't? I am not that proficient with QOS yet. See below for configs.
Thanks for your help!
From 2960
mls qos map cos-dscp 0 8 16 24 32 46 48 56
mls qos srr-queue input bandwidth 90 10
mls qos srr-queue input threshold 1 8 16
mls qos srr-queue input threshold 2 34 66
mls qos srr-queue input buffers 67 33
mls qos srr-queue input cos-map queue 1 threshold 2 1
mls qos srr-queue input cos-map queue 1 threshold 3 0
mls qos srr-queue input cos-map queue 2 threshold 1 2
mls qos srr-queue input cos-map queue 2 threshold 2 4 6 7
mls qos srr-queue input cos-map queue 2 threshold 3 3 5
mls qos srr-queue input dscp-map queue 1 threshold 2 9 10 11 12 13 14 15
mls qos srr-queue input dscp-map queue 1 threshold 3 0 1 2 3 4 5 6 7
mls qos srr-queue input dscp-map queue 1 threshold 3 32
mls qos srr-queue input dscp-map queue 2 threshold 1 16 17 18 19 20 21 22 23
mls qos srr-queue input dscp-map queue 2 threshold 2 33 34 35 36 37 38 39 48
mls qos srr-queue input dscp-map queue 2 threshold 2 49 50 51 52 53 54 55 56
mls qos srr-queue input dscp-map queue 2 threshold 2 57 58 59 60 61 62 63
mls qos srr-queue input dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31
mls qos srr-queue input dscp-map queue 2 threshold 3 40 41 42 43 44 45 46 47
mls qos srr-queue output cos-map queue 1 threshold 3 5
mls qos srr-queue output cos-map queue 2 threshold 3 3 6 7
mls qos srr-queue output cos-map queue 3 threshold 3 2 4
mls qos srr-queue output cos-map queue 4 threshold 2 1
mls qos srr-queue output cos-map queue 4 threshold 3 0
mls qos srr-queue output dscp-map queue 1 threshold 3 40 41 42 43 44 45 46 47
mls qos srr-queue output dscp-map queue 2 threshold 3 24 25 26 27 28 29 30 31
mls qos srr-queue output dscp-map queue 2 threshold 3 48 49 50 51 52 53 54 55
mls qos srr-queue output dscp-map queue 2 threshold 3 56 57 58 59 60 61 62 63
mls qos srr-queue output dscp-map queue 3 threshold 3 32 33 34 35 36 37 38 39
mls qos srr-queue output dscp-map queue 4 threshold 1 8
mls qos srr-queue output dscp-map queue 4 threshold 2 9 10 11 12 13 14 15
mls qos srr-queue output dscp-map queue 4 threshold 3 0 1 2 3 4 5 6 7
mls qos queue-set output 1 threshold 1 138 138 92 138
mls qos queue-set output 1 threshold 2 138 138 92 400
mls qos queue-set output 1 threshold 3 36 77 100 318
mls qos queue-set output 1 threshold 4 20 50 67 400
mls qos queue-set output 2 threshold 1 149 149 100 149
mls qos queue-set output 2 threshold 2 118 118 100 235
mls qos queue-set output 2 threshold 3 41 68 100 272
mls qos queue-set output 2 threshold 4 42 72 100 242
mls qos queue-set output 1 buffers 10 10 26 54
mls qos queue-set output 2 buffers 16 6 17 61
mls qos
interface FastEthernet0/2
switchport access vlan 100
switchport mode access
switchport voice vlan 110
srr-queue bandwidth share 10 10 60 20
queue-set 2
priority-queue out
mls qos trust cos
auto qos voip trust
spanning-tree portfast
From 2960-X
mls qos map cos-dscp 0 8 16 24 32 46 48 56
mls qos srr-queue output cos-map queue 1 threshold 3 4 5
mls qos srr-queue output cos-map queue 2 threshold 1 2
mls qos srr-queue output cos-map queue 2 threshold 2 3
mls qos srr-queue output cos-map queue 2 threshold 3 6 7
mls qos srr-queue output cos-map queue 3 threshold 3 0
mls qos srr-queue output cos-map queue 4 threshold 3 1
mls qos srr-queue output dscp-map queue 1 threshold 3 32 33 40 41 42 43 44 45
mls qos srr-queue output dscp-map queue 1 threshold 3 46 47
mls qos srr-queue output dscp-map queue 2 threshold 1 16 17 18 19 20 21 22 23
mls qos srr-queue output dscp-map queue 2 threshold 1 26 27 28 29 30 31 34 35
mls qos srr-queue output dscp-map queue 2 threshold 1 36 37 38 39
mls qos srr-queue output dscp-map queue 2 threshold 2 24
mls qos srr-queue output dscp-map queue 2 threshold 3 48 49 50 51 52 53 54 55
mls qos srr-queue output dscp-map queue 2 threshold 3 56 57 58 59 60 61 62 63
mls qos srr-queue output dscp-map queue 3 threshold 3 0 1 2 3 4 5 6 7
mls qos srr-queue output dscp-map queue 4 threshold 1 8 9 11 13 15
mls qos srr-queue output dscp-map queue 4 threshold 2 10 12 14
mls qos queue-set output 1 threshold 1 100 100 50 200
mls qos queue-set output 1 threshold 2 125 125 100 400
mls qos queue-set output 1 threshold 3 100 100 100 400
mls qos queue-set output 1 threshold 4 60 150 50 200
mls qos queue-set output 1 buffers 15 25 40 20
mls qos
interface GigabitEthernet1/0/1
switchport access vlan 100
switchport mode access
switchport voice vlan 110
srr-queue bandwidth share 1 30 35 5
priority-queue out
mls qos trust cos
auto qos trust
spanning-tree portfast

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Posting
IMO, AutoQoS is always a concern (as are device defaults, without it).
If you're doing to "do" QoS, you should have a policy that serves your service needs, and configurations to support it. AutoQoS might, or might not, be exactly what you need.
If you're not proficient with QoS, on most LANs, you might actually be better off disabling it.

QOS voip

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