QOS basics

I am kind of new to QoS, purposefully avoiding it as long as possible. I have read the design guides and have a few questions.
1. Is one way QoS a good thing? Or should it be bidirectional?
example: I am marking traffic between two hosts as AF21, the traffic from host B to host A gets marked properly, but the return traffic Host A to Host B is marked as default.
2. Should I have to mark up any routing traffic; or should my Cisco routers and switches automatically mark it as Class 6 or 7 for me?
3. Marking source, should I mark at my switches, or should marking traffic at all of my routers (MPLS network) be sufficient?
4. Not marking traffic at all on my core switch, could this cause an issue; currently everything is getting set to Default as it goes across the switch.

Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
#1 QoS can be a very good thing! "Or .. bidirectional?" Unsure why you preface an "or", but bidirectional, ideally, should be used.
#2 Depends on the device and protocol. Often Cisco devices will mark some. If not, you can mark. (Also, you might need to provide [configure] "special" treatment even if the device auto marks.)
#3 The ideal is to mark (and verify) as early is possible. But it's not required to use QoS. (You can do QoS without markings.)
#4 Cores often don't mark, at that point within the network, they often "trust". Cannot say what impact ". . . everything is getting set to Default as it goes across the switch."
PS:
BTW, QoS markings are just a "shortcut" when looking at frames/packets for QoS processing. QoS markings aren't required to provide QoS treatments and QoS markings (alone) don't often guarantee QoS treatment.

Similar Messages

Help with QoS basic configuration.

Hi all, i want to configure qos in a cisco lan with non cisco phone. I read a lot of documentation and some basic videos. I don't want to configure it very granular, so, the most basic commands that i found:
conf t
int fa0/5
switchport voice vlan 111
mls qos trust cos
auto qos voip trust
How i'm be realy sure that QoS is working on mi lan?
And how about the interface trunk configuration?
Any suggestion?
Here are the verification:
In the show running-configuration :
mls qos map cos-dscp 0 8 16 24 32 46 48 56
mls qos srr-queue input bandwidth 70 30
mls qos srr-queue input threshold 1 80 90
mls qos srr-queue input priority-queue 2 bandwidth 30
mls qos srr-queue input cos-map queue 1 threshold 2 3
mls qos srr-queue input cos-map queue 1 threshold 3 6 7
mls qos srr-queue input cos-map queue 2 threshold 1 4
mls qos srr-queue input dscp-map queue 1 threshold 2 24
mls qos srr-queue input dscp-map queue 1 threshold 3 48 49 50 51 52 53 54 55
mls qos srr-queue input dscp-map queue 1 threshold 3 56 57 58 59 60 61 62 63
mls qos srr-queue input dscp-map queue 2 threshold 3 32 33 40 41 42 43 44 45
mls qos srr-queue input dscp-map queue 2 threshold 3 46 47
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
In the interface configuration:
interface FastEthernet0/5
switchport access vlan 111
switchport mode access
switchport voice vlan 111
srr-queue bandwidth share 1 30 35 5
priority-queue out
mls qos trust cos
auto qos trust
spanning-tree portfast
In trunk port:
interface GigabitEthernet0/1
switchport mode trunk
sh mls qos int f0/5
FastEthernet0/5
trust state: trust cos
trust mode: trust cos
trust enabled flag: ena
COS override: dis
default COS: 0
DSCP Mutation Map: Default DSCP Mutation Map
Trust device: none
qos mode: port-based
Thanks a lot !
Martín.

Hi, thanks for reply. I investigate a little more.
When i want verify that QoS really work in the lan, first of all:
- The marking (in my case verify traffic VoIP at 64)
- Queue, that put first in the queue voice traffic, dscp 64
To try, i make a call connecting an IP phone (in fa0/6) and call to analog phone. Wait for 2 minutes and see what changes in this command:
Switch#sh mls qos int f0/6 stFastEthernet0/6 (All statistics are in packets) dscp: incoming------------------------------- 0 - 4 : 4465744658 0 0 0 0 5 - 9 : 0 0 0 0 0 10 - 14 : 0 0 0 0 0 15 - 19 : 0 0 0 0 0 20 - 24 : 0 0 0 0 0 25 - 29 : 0 1196 0 0 0 30 - 34 : 0 0 0 0 0 35 - 39 : 0 0 0 0 0 40 - 44 : 0 0 0 0 0 45 - 49 : 0 41769 62163 0 91 98 0 50 - 54 : 0 0 0 0 0 55 - 59 : 0 0 0 0 0 60 - 64 : 0 0 0 0 dscp: outgoing------------------------------- 0 - 4 : 251670 272323 0 0 0 0 5 - 9 : 0 0 0 0 0 10 - 14 : 0 0 0 0 0 15 - 19 : 0 0 0 0 0 20 - 24 : 0 0 0 0 0 25 - 29 : 0 0 0 0 0 30 - 34 : 0 0 0 0 0 35 - 39 : 0 0 0 0 0 40 - 44 : 0 0 0 0 0 45 - 49 : 0 3393 0 0 0 50 - 54 : 0 0 0 0 0 55 - 59 : 0 0 0 0 0 60 - 64 : 0 0 0 0 cos: incoming------------------------------- 0 - 4 : 89094 109541 0 0 0 0 5 - 7 : 0 0 0 cos: outgoing------------------------------- 0 - 4 : 295699 316387 0 0 0 0 5 - 7 : 3393 0 0 output queues enqueued: queue: threshold1 threshold2 threshold3----------------------------------------------- queue 0: 2 0 0 queue 1: 209108 1534 194272 queue 2: 0 0 56565 queue 3: 0 0 33762 output queues dropped: queue: threshold1 threshold2 threshold3----------------------------------------------- queue 0: 0 0 0 queue 1: 57 0 0 queue 2: 0 0 0 queue 3: 0 0 0Policer: Inprofile: 0 OutofProfile: 0
The underlined numbers is the variations in aprox. 2 minutes in the call. That mean that the traffic was marked as VoIP traffic, but i´m not sure that the traffic is queued right.
I´m wrong?
Thanks for the help
PS:Later monitoring: with iperf or Cacti using IP SLA.

QOS: Basic Questions

Hello everyone.
I recently have been reading into QOS and have been fiddling with it on my Linksys WRT54G router. But there are a few things that seem limiting (at least on this version) so I have some questions.
I live in a house with three other roommates all sharing the same internet connection. We don't have a bandwidth limit, so I don't care how much they're downloading. When I want to watch Netflix when they're all on the internet however, either my movies will come up in low quality, or will be interrupted.
Under the Device Priority I put in my MAC address and set my priority to high. My first question is, what is the priority of a device that is not listed at all? There's only room for two devices so I can't put all three of my roommates in. I would assume their priority would automatically be the lowest.
I wanted to set certain common ports to be at a high priority. So far I just have port 53 for DNS entered with the highest priority, while my computer is set to high. Would this mean any computer making a DNS request would have a higher priority than my computer making a non-DNS query? I would like DNS to be a higher priority than myself streaming video.
Finally, are there are ports that streaming video commonly use? I know there are ports for Netflix but I was also thinking of other Flash/HTML5 videos I might come across. Or do they tend to just use port 80?
If there's anything else you think I should know for what I'm doing, I'm open to those too.
Thanks in advance
Solved!
Go to Solution.

QoS (Quality of Service) is used to set up priority and attention to specific devices, services or applications within the network through the router, so that the maximum amount of available throughput and speed can be used.
IMPORTANT: Should you choose to set the QoS to Enabled, you will risk reducing the Internet speed of other computers that are connected to the same network.
Here is the link which can help you in setting up QoS: http://www6.nohold.net/Cisco2/ukp.aspx?pid=93&login=1&vw=1&app=search&articleid=23428&userrole=Links...
Second you can even set the priority for the specific for DNS as well on the router.

Vision - is it essential to connect to port 1 of t...

I have extended my home network by adding an apple extreme.
Right now it is made complex by needing to keep the vision connection direct to the HH3 to connect to port 1, as the manual says use that port for vision connection, presumably because of the QoS requirements. That means I need to use the HH3 as the router and DHCP server, and the Apple Extreme in bridge mode.
It would be far easier if I could turn off the DHCP routing function on the HH3, and connect the Vision box to the Extreme and use the DHCP functionality there. Is this possible? Any downside?

TimSmedley wrote:
Hi
When BTV first came out the guidance of the day said to use port one as it would be given priority over the other ports - thus reducing buffering and complaints where line sppeds were low/marginal.
I think its one of those rules that they dropped some time ago as download speeds improved but lives on in the wider rumour world!
Tim
Yeap, what he said.
Basically you can do what you want. I don't even use the Home Hub, I think it's a rubbish device overall - but I have somewhat higher standards with network equipment.
I have the Vision box on a switch, and I use my own router. No problems whatsoever.
But as mentioned previously, the HH3 *might* be adding some QoS to the whole set-up for connections with limited bandwidth - although I believe the Vision QoS (basically, prioritising Vision traffic over other traffic on the broadband line) is done on the BT side now.

Switch comparison

Hi folks
I currently have a network for a client that needs re design. the customer are currently using unmanaged Netgear switches. their current network topology consists of two leased lines both being routed by two cisco routers (1 1800 & 1 800). the client would like to upgrade their network which contains 3 switches in different buildings linked by fibre. due to the business only having 40 employees i am thinking of going with a SB switch but im not sure which one. what are the differences between the 500 series and the 300 series and how much impact am i going to have with running SB switches with enterprise equipment.
the reason i ask this is that i have not used the small business products before and want to know they can work successfully with enterprise products to carry voice, video and data
Regards P Lawrence

Hi P.,
In this case I'd definitely consider the SB switches, but only the new series of course (SF/SG 200, 300, 500).
For basic needs, like VLAN, L2 QoS, basic security (like 802.1x), IGMP snooping, RSTP, etc. you can go with the 200 series.
If you need advanced L3 functions like static routing, L3 packet filtering, L3 QoS, advanced security, etc. than your bet would be the 300 series.
As per the 500 series it is not yet available and its major advance over the 300 series is the dedicated hardware stack port, and MVR feature.
As per management they all support IPv6, SNMP R/W, all have a very good web GUI, text based configuration files, TFTP provisioning. The 300 and 500 series will have full CLI.
Hope this helps sheding some light on it, let me know if you have further question.
Cheers,
Zsolt

Basic QoS questions

Hello,
Out company is finally going to install VOIP, they will be using something called Natterbox, but I've been asked to add QoS to our Cisco switches and routers in various locations I will also need to add a second VLAN for voice I believe which is ok.
How can we configure QoS so VOIP is treated first then video streaming then video?
As we will need to add a second VLAN, so I assum all ports to phone swill be truk ports?
Thanks

Andy,
To start, you need to understand how the soft phone and desk phones mark voice traffic. Cisco switch and Routers perform QoS by trusting, understanding or marking traffic using DSCP, PHB and port numbers.
Hence questions you need to ask are
1. Do the softphones mark their voice and video traffic? If they do how do they do it?
2. What ports are used for voice traffic?
3. what ports are used for signalling traffic
4.What ports are used for video traffic if its differs from ports used for voice.
Once these facts are understood, you can beging to look at how to configure your switches and routers based on this parameters
Please rate all useful posts
"opportunity is a haughty goddess who waste no time with those who are unprepared"

Basic qos for video using mqc

I have two 2800 routers connected via T1. I need a basic configuration for prioritizing my video using MQC and LLQ.
Thanks.

Hi,
you have to build only 2 priorization-queues. One for Voice and one for Video (with lower performance).
The third queue will be a wfq-queue with lfi to be sure that big-packets are not reasons for bad voice or video.
the signalling should be in the voice-queue.
look at
http://cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a0080094660.shtml
greetings
Michael

QoS / Native VLAN Issue - Please HELP! :)

I've purchased 10 Cisco Aironet 2600 AP’s (AIR-SAP2602I-E-K9 standalone rather than controller based).
I’ve configured the WAP’s (or the first WAP I’m going to configure and then pull the configuration from and push to the others) with 2 SSID’s. One providing access to our DATA VLAN (1000 – which I’ve set as native on the WAP) and one providing access to guest VLAN (1234). I’ve configured the connecting DELL switchport as a trunk and set the native VLAN to 1000 (DATA) and allowed trunk traffic for VLAN’s 1000 and 1234. Everything works fine, when connecting to the DATA SSID you get a DATA IP and when you connect to the GUEST SSID you lease a GUEST IP.
The problem starts when I create a QoS policy on the WAP (for Lync traffic DSCP 40 / CS5) and try to attach it to my VLAN’s. It won’t let me attach the policy to VLAN 1000 as it’s the native VLAN. If I change VLAN 1000 on the WAP to NOT be the native VLAN I can attach the policies however wireless clients can no longer attach to either SSID properly as they fail to lease an IP address and instead get a 169.x.x.x address.
I'm sure I'm missing something basic here so please forgive my ignorance.
This is driving me insane!
Thanks to anyone that provides assistance. Running config below and example of the error...
User Access Verification
Username: admin
Password:
LATHQWAP01#show run
Building configuration...
Current configuration : 3621 bytes
! Last configuration change at 02:37:59 UTC Mon Mar 1 1993 by admin
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname LATHQWAP01
logging rate-limit console 9
aaa new-model
aaa authentication login default local
aaa authorization exec default local
aaa session-id common
no ip routing
dot11 syslog
dot11 vlan-name Data vlan 1000
dot11 vlan-name Guest vlan 1234
dot11 ssid LatitudeCorp
   vlan 1000
   authentication open
   authentication key-management wpa version 2
   wpa-psk ascii
dot11 ssid LatitudeGuest
   vlan 1234
   authentication open
   authentication key-management wpa version 2
   guest-mode
   wpa-psk ascii
crypto pki token default removal timeout 0
username admin privilege 15 password!
class-map match-all _class_Lync0
match ip dscp cs5
policy-map Lync
class _class_Lync0
set cos 6
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
encryption vlan 1234 mode ciphers aes-ccm
encryption vlan 1000 mode ciphers aes-ccm
ssid LatitudeCorp
ssid LatitudeGuest
antenna gain 0
stbc
station-role root
interface Dot11Radio0.1000
encapsulation dot1Q 1000 native
no ip route-cache
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
interface Dot11Radio0.1234
encapsulation dot1Q 1234
no ip route-cache
bridge-group 255
bridge-group 255 subscriber-loop-control
bridge-group 255 spanning-disabled
bridge-group 255 block-unknown-source
no bridge-group 255 source-learning
no bridge-group 255 unicast-flooding
service-policy input Lync
service-policy output Lync
interface Dot11Radio1
no ip address
no ip route-cache
encryption vlan 1234 mode ciphers aes-ccm
encryption vlan 1000 mode ciphers aes-ccm
ssid LatitudeCorp
ssid LatitudeGuest
antenna gain 0
no dfs band block
stbc
channel dfs
station-role root
interface Dot11Radio1.1000
encapsulation dot1Q 1000 native
no ip route-cache
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
interface Dot11Radio1.1234
encapsulation dot1Q 1234
no ip route-cache
bridge-group 255
bridge-group 255 subscriber-loop-control
bridge-group 255 spanning-disabled
bridge-group 255 block-unknown-source
no bridge-group 255 source-learning
no bridge-group 255 unicast-flooding
service-policy input Lync
service-policy output Lync
interface GigabitEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
interface GigabitEthernet0.1000
encapsulation dot1Q 1000 native
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
no bridge-group 1 source-learning
interface GigabitEthernet0.1234
encapsulation dot1Q 1234
no ip route-cache
bridge-group 255
bridge-group 255 spanning-disabled
no bridge-group 255 source-learning
service-policy input Lync
service-policy output Lync
interface BVI1
ip address 10.10.1.190 255.255.254.0
no ip route-cache
ip default-gateway 10.10.1.202
ip http server
ip http authentication aaa
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
bridge 1 route ip
line con 0
line vty 0 4
transport input all
end
LATHQWAP01#conf
Configuring from terminal, memory, or network [terminal]? t
Enter configuration commands, one per line. End with CNTL/Z.
LATHQWAP01(config)#int dot11radio1.1000
LATHQWAP01(config-subif)#ser
LATHQWAP01(config-subif)#service-policy in
LATHQWAP01(config-subif)#service-policy input Lync
set cos is not supported on native vlan interface
LATHQWAP01(config-subif)#

Hey Scott,
Thank you (again) for your assistance.
So I' ve done as instructed and reconfigured the WAP. I've added an additional VLAN (1200 our VOIP VLAN) and made this the native VLAN - so 1000 and 1234 are now tagged. I've configure the BVI interface with a VOIP IP address for management and can connect quite happily. I've configured the connecting Dell switchport as a trunk and to allow trunk vlans 1000 (my DATA SSID), 1200(native) and 1234 (MY GUEST SSID). I'm now back to the issue where when a wireless client attempts to connect to either of my SSID's (Guest or DATA) they are not getting a IP address / cannot connect.
Any ideas guys? Forgive my ignorance - this is a learning curve and one i'm enjoying.
LATHQWAP01#show run
Building configuration...
Current configuration : 4426 bytes
! Last configuration change at 20:33:19 UTC Mon Mar 1 1993 by Cisco
version 15.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname LATHQWAP01
logging rate-limit console 9
enable secret 5
no aaa new-model
no ip source-route
no ip cef
dot11 syslog
dot11 vlan-name DATA vlan 1000
dot11 vlan-name GUEST vlan 1234
dot11 vlan-name VOICE vlan 1200
dot11 ssid LatitudeCorp
   vlan 1000
   authentication open
   authentication key-management wpa version 2
   mobility network-id 1000
   wpa-psk ascii
dot11 ssid LatitudeGuest
   vlan 1234
   authentication open
   authentication key-management wpa version 2
   mbssid guest-mode
   mobility network-id 1234
   wpa-psk ascii
   no ids mfp client
dot11 phone
username CISCO password
class-map match-all _class_Lync0
match ip dscp cs5
policy-map Lync
class _class_Lync0
set cos 6
bridge irb
interface Dot11Radio0
no ip address
encryption vlan 1000 mode ciphers aes-ccm
encryption vlan 1234 mode ciphers aes-ccm
ssid LatitudeCorp
ssid LatitudeGuest
antenna gain 0
stbc
mbssid
station-role root
interface Dot11Radio0.1000
encapsulation dot1Q 1000
bridge-group 255
bridge-group 255 subscriber-loop-control
bridge-group 255 spanning-disabled
bridge-group 255 block-unknown-source
no bridge-group 255 source-learning
no bridge-group 255 unicast-flooding
service-policy input Lync
service-policy output Lync
interface Dot11Radio0.1200
encapsulation dot1Q 1200 native
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
interface Dot11Radio0.1234
encapsulation dot1Q 1234
bridge-group 254
bridge-group 254 subscriber-loop-control
bridge-group 254 spanning-disabled
bridge-group 254 block-unknown-source
no bridge-group 254 source-learning
no bridge-group 254 unicast-flooding
service-policy input Lync
service-policy output Lync
interface Dot11Radio1
no ip address
encryption vlan 1000 mode ciphers aes-ccm
encryption vlan 1234 mode ciphers aes-ccm
ssid LatitudeCorp
ssid LatitudeGuest
antenna gain 0
peakdetect
no dfs band block
stbc
mbssid
channel dfs
station-role root
interface Dot11Radio1.1000
encapsulation dot1Q 1000
bridge-group 255
bridge-group 255 subscriber-loop-control
bridge-group 255 spanning-disabled
bridge-group 255 block-unknown-source
no bridge-group 255 source-learning
no bridge-group 255 unicast-flooding
service-policy input Lync
service-policy output Lync
interface Dot11Radio1.1200
encapsulation dot1Q 1200 native
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
interface Dot11Radio1.1234
encapsulation dot1Q 1234
bridge-group 254
bridge-group 254 subscriber-loop-control
bridge-group 254 spanning-disabled
bridge-group 254 block-unknown-source
no bridge-group 254 source-learning
no bridge-group 254 unicast-flooding
service-policy input Lync
service-policy output Lync
interface GigabitEthernet0
no ip address
duplex full
speed auto
interface GigabitEthernet0.1000
encapsulation dot1Q 1000
bridge-group 255
bridge-group 255 spanning-disabled
no bridge-group 255 source-learning
service-policy input Lync
service-policy output Lync
interface GigabitEthernet0.1200
encapsulation dot1Q 1200 native
bridge-group 1
bridge-group 1 spanning-disabled
no bridge-group 1 source-learning
interface GigabitEthernet0.1234
encapsulation dot1Q 1234
bridge-group 254
bridge-group 254 spanning-disabled
no bridge-group 254 source-learning
service-policy input Lync
service-policy output Lync
interface BVI1
mac-address 881d.fc46.c865
ip address 10.10. 255.255.254.0
ip default-gateway 10.10.
ip forward-protocol nd
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
bridge 1 route ip
line con 0
line vty 0 4
login local
transport input all
sntp server ntp2c.mcc.ac.uk
sntp broadcast client
end
LATHQWAP01#

QoS binding limited to IP address range and SSID on WLAN

Our VLAN id 2 is used only by a WLAN SSID
Defining a QoS profile as using VLAN id 2 did not work. No upper rate limitation worked
Only using the IP address range of the VLAN or the SSID appeared to work.
It does not appear consistent, when a VLAN id can be specified on a WLAN in the Wireless Basic Setting Table
It is also inconsistent, that the proper SSIDs are not listed in the drop down box on the
Add / Edit Profile Binding Configuration page. They only appear as AP-1, AP-2 etc.

Has this been fixed under firmware 1.0.4.17? I cannot get this work with any type of Traffic Selector (IP/MAC/VLAN/DSCP/SSID).
Any suggestions are greatly appreciated. Thanks!

Cisco Aironet 1300 QoS

Hello, I have 2 Cisco Aironet 1300 Bridges which provide data and voice communication between 2 buildings. Up until recently QoS has not been needed, but lately there appears to be congestion due to reports of poor voice quality. Building A houses a V3000 NBX Telephone system, Building B houses approximately 30 remote IP phones. Building A and Building B are approximately 100 yards apart. No VLAN's. Due to myself being an extreme noob to Cisco bridges, I was hoping some of you may have had experience in setting this up and hopefully provide some tips. I need to prioritize traffic on UDP ports 2093-2096 and TCP port 1040. Thank you in advance for any suggestions. My current running config is below:
Using 1283 out of 32768 bytes
version 12.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname LHS-WeightRoom-WCV
ip subnet-zero
aaa new-model
aaa authentication login default local
aaa authorization exec default local
aaa session-id common
dot11 ssid wcv
authentication open
guest-mode
dot11 ssid wcvcisco
authentication open
infrastructure-ssid optional
username root privilege 15 password 7 0247335A05320A2244
username Cisco privilege 15 password 7 074E164D403D1C061F
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
ssid wcv
ssid wcvcisco
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0
54.0
station-role root bridge
bridge-group 1
bridge-group 1 spanning-disabled
interface FastEthernet0
no ip address
no ip route-cache
bridge-group 1
bridge-group 1 spanning-disabled
hold-queue 80 in
interface BVI1
ip address 10.141.8.6 255.255.254.0
no ip route-cache
ip default-gateway 10.141.8.5
ip http server
ip http authentication aaa
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
control-plane
bridge 1 route ip
line con 0
line vty 0 4
end

Here is the URL for the configuration of Cisco Aironet 1300 QoS. Follow the guide it may help you
http://www.cisco.com/en/US/docs/wireless/access_point/1300/12.3_4_JA/configuration/guide/o13qos.html

Can Anyone Help Me Configure My Verizon (D-Link) DSL-2750B "Traffic Shaping" (QoS)?

Well ... I just spent a wonderful hour and a half (not) bouncing around VZ technical support, etc. trying to get assistance regarding configuring my DSL router.* Between the low-quality Skype connection to India and my lack of success, I'm a little bummed out right now.
Could one of you perhaps help me? I'm trying to configure a single, wire-attached network node (port 4 of the router) so that it can only consume up to 320 Kbps of my 750 Kbps (7.5 Mbps) DSL bandwidth ... no matter what. This results from this node consuming virtually all of the circuit's bandwidth when streaming or during bulk file transfers.
I have tried to remedy the problem using priority with no discernible impact.
The Quality of Service (QoS) element called Traffic Shaping (Services | QoS | Traffic Shaping), described on Page 51 of the VZ DSL-2750B User Manual , appears to be the ideal solution to my problem. Repeated attempts at activating this QoS have all resulted in no throttling of bandwidth consumption.
My most recent attempt was to define the device on Port 4 as the DMZ host ... and then apply a new rule (320 TX, 320 RX) to this interface. Again, no joy.
Does anyone have any experience with this service on this router?
Am I chasing my tail trying to configure the router without validating that my circuit is not configured with "Fastpath (PSE) inactive"?
If the circuit configuration is a potential problem, which office should I ask for at VZ customer service?
Here is the information from the System page of the Router Control Panel:
Gateway ID: PX2M1BC000000
Software Version: 5.4.12.1.44
Release Date: Feb 19 2012
Platform: D-Link DSL-2750B
Board Tag:... Ntag-5_4_12_1_44
Compilation Flags:... LIC=/home/bat/bat/dlink_bcm96328_5_4_12_1/20120219_1343/conf/jpkg_bcm9636x_dlink.lic CONFIG_RG_PROD_IMG=y DIST=DLINK_DSL2750B
I'll note that the Router provides a notification that "RX QOS might not operate when Fastpath (PSE) is active" when I update the router configuration page concerning Traffic Shaping. Because Fastpath is not mentioned in the User Manual, I'm guessing that Fastpath (PSE) might be a configurable attribute of the circuit servicing my PoP, but I have no idea if this is the case.
I searched for relevant messages on this board ... without success. If this has already been addressed, please provide a link, and accept my apologies. (My Google-Fu tends to be weak.)

The asterisk in the first post refers to the following summary of events:
10:40 - Attempt to solve my configuration question using VZ chat begins.
10:49 - VZ chat agent Danish refers me to phone support. (Chat ID number is 020813176471 if you're with VZ and are interested.)
10:50 - Call VZ phone support.
11:02 - Talk with Angel. Because she has not heard of, nor received training in, "traffic shaping," she says my question about configuring this VZ DSL modem must be addressed by "Premium Technical Support." She transfers me.
11:13 - Talk with Pamela. Premium Technical Support only responds to questions about 3d party products. Because my question concerns a VZ DSL modem, Basic Technical Support is responsible. She transfers me.
11:17 - Talk with Joe. He says either the vendor (D-Link) or premium technical support is required. Because I had already tried with D-Link (they referred me to Verizon, as this modem was built exclusively for VZ), I explained what I had already experienced, and described how I wanted "assistance configuring my VZ DSL modem, specifically a feature described on page 51 of the User Manual." He transfers me.
11:23 - The automated phone system asks for my 12-digit customer ID. I wasn't able to find it fast enough, and rolled through to Financial Services. Eventually Trig picked up, listened to my story, and transferred me to "Technical Support" providing the direct dial number, just in case (866.945.79xx).
11:32 - Entered the phone queue. Lots of hissing and clicks.
11:35 - Talk with Monika. (The voice clarity from this point onward was on the order of 1st-generation Skype. Between the horrible language problem -- Monika is in India don'cha know -- and the lousy line quality, this was the most frustrating.) No matter what I said, I couldn't convey the reason for my call. I asked to talk with a supervisor, which Monika related was not possible. She also related that she could not transfer me to an American POC or supervisor.
12:01 - Hung up the phone ... and started down the path that led to my post immediately above.
I was repeatedly queried about the account name and number throughout the process. Conveying this information was especially challenging during the Indian call segment.

Eight-Class Model QoS for voice and video

One of the QoS recomendation in the SRND "Enterprise QoS" is to create a Eight-Class QoS Model utilizing a seperate priority queue for voice and video.
It says that even though you have only one physical priority queue, that LLQ has an implicit policer that allows for time-division multiplexing of the single priority queue. This implicit policer abstract the fact that there is essentially a single LLQ within the algorithm and, thus, allows for the "provisioning" of multiple LLQs.
My question is if anyone has tried this and if there are any limitations on the platforms that can support this "dual-LLQ design."

Design guide which is basically the QoSDesign recommendation bible.
http://www.cisco.com/univercd/cc/td/doc/solution/esm/qossrnd.pdf
It has a large section for WAN recommendations...while you may not
need to follow one of these Based on my understanding what what you
have for a link (DS3) and what you are trying to accomplish, I
believe the following section would be a good place to start.
- WAN Aggregator QoS Design
- WAN Edge Classification and Provisioning Models
- High Link Speed QoS Class Model
- Eight-Class Model

QoS for App-V

Hello,
I'm currently configuring new 3750X switches.
I must implement QoS on the stack. The QoS must be the following:
VOIP Class (50%)
App-V Class (40%)
Movie Class (10%)
How I can do this (in particular for AppV)? I do the following for the moment:
class-map match-any VOIP
match protocol voice
match dscp ef
match protocol sip
match protocol skype
match protocol rtp audio
match protocol rtp video
exit
class-map AppV
exit
class-map Movie
match protocol rtp video
exit
policy-map BandwidthTraffic
class VOIP
priority percent 50
set dscp ef
class AppV
bandwidth remaining percent 40
class Movie
bandwidth remaining percent 10
interface Gig1/0/3
ip nbar protocol-discovery
service-policy input BandwidthTraffic
Anyone can says me if it's correct or not? And why?
Thank you for your help.
Florent

Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
It appears you've some router QoS. 3750X QoS is quite different for egress as you're limited to working with four egress queues. I don't recall 3750X supporting NBAR.
Suggest you read the configuration guide's chapter on QoS, for you 3750X IOS version, and then post questions as necessary. (My concern is, 3750X QoS is so different, it wouldn't be helpful to suggest a QoS configuration until you had a basic understanding of the 3750 QoS architecture and features.)

QoS for CEM traffic

I have two 3750ME switches connecting two ends of a LES100. On each switch, i have 3845 routers with the NM-CEM-4SER modules, plus direct to switch internet traffic. My complete setup is as shown in the attached PDF.
My problem is that with the default QoS settings, i have lots of drops in the Txqueue of the switches.
The CEM's send traffic as EF, which is trusted throughout the switch setup. Other traffic that comes into the switch is marked down to best effort. Thus, most of the traffic the switches handle is EF,(about 70%, 20MB for now). How do i tune the QoS parameters on the switch to handle this amount and more of EF traffic?

Regaring the QOS, I think we should implement this on the 3750 . It is worth advising you to first upgrade the IOS on this device. The following URL will help you:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_25_sec/configuration/guide/swqos.html
As you are unable to specify the "bandwidth/priority" on 3750 cli, you will need to use the Queuing and Scheduling (SRR) section from the config guide. So basically you enable the expidite queue for the CEM traffic egreesing the 3750. However I believe you cannot classify the traffic via acl to assign it to queues, so you will need to mark it.

Basic VT / Video Question

I am upgrading my CM to v4.2 this month and looking to do a limited implemenation of some video. I have read the basics on VT Advantage solution and had some questions I can't seem to find the answers to:
1. Besides the obvious desktop software and hardware (camera) installation, what additonal configuration changes do I need to make to CM/Unity/gateways to get video working in the environment?
2. What kind of additional load is now placed on the network with video and what will this do to my current bandwidth configurations?

Michael,
First off you should check out the IP Video Telephony SRND if you are thinking about deploying video. Here is the link. (It's a 4.1 reference but should be 99% the same for 4.2).
http://www.cisco.com/application/pdf/en/us/guest/netsol/ns268/c649/ccmigration_09186a00804ff6ba.pdf
Somewhat brief answers to your questions.
1. QoS for video on all network devices. The above guide discusses this but the Enterprise QoS SRND is the best reference. Switched only VT advantage isn't that hard. If you have WAN links then the LLQs should be configured independantly for video and voice(still only one llq though but this will ease admin and give the ability to police the video). Call Manager locations can be created to help enforce Call Admission Control of video calls. Provisioning the bandwidth is going to be one of the harder things to configure.
ACLs will need to be adjusted for PC/Cam to Phone communication. The phone proxies the connection for the Camera and determines the camera via CDP (local on the phone switch) and then sets up a TCP connection traversing L2 vlans to L3 router and back. So if you have Phone acls they need to be adjusted. Again this is referenced in the above document.
Regions for video types. You have a few options on video quality. This response will also answer 2. You can choose Cisco wideband, 7mps each direction for the highest quality and low amount of system overhead on the pc cpu. Of course this takes up a total 14mb for video. Should only be used on local lan. Then you have increments of h263. They range from 128 up to 1536. The higher the bandwidth the better the quality and more cpu on the local pc. You will need to use regions to set the desired video codecs and locations to enforce the bandwidth the codecs require.
Lastly multipoint conferencing and other video endpoint integration. If you want conference with video you need to add MCUs. Currently (not sure on 4.2) CCM has a limitation on determining Video conference resources in an intelligent fashion. Essentially you need to have any video MCUs at the top of your MRGLs in CCM. This leaves the potential for Audio only conferences happening on very expensive video conference bridges. This calls for Device Pool and MRGL design changes for people who really only need multi-point video conferences.
Read that SRND, great resource.
Please rate any helpful posts
Thanks
Fred

QOS basics

Similar Messages

Maybe you are looking for