QOS for Video and phone

You may wish to investigate the Cisco Router Configure QoS Template:

Brad Reese

QoS is not a "flip switch", which you turn on and have everything working perfect. Setting up QoS is complex of actions, you perform on all equipment along the way of interested traffic. For office LAN it will be one set of actions, for inter-office communication - another, for WAN and Internet traffic it will be third strategy.

What is your scenario? Are you setting up Voice and Video within the office? In this case you will need to configure QoS on access ports, on all switches, on affected trunks, etc. If you have a distributed environment, offices interconnected by Frame Relay or VPN, then you will need to configure not only LAN, but also set up your routers properly. It includes traffic study, prioritizing one type of traffic over another, limiting certain applications, etc. From one hand you will need to provide quality for voice and video, but what if video will kill your mail or SQL traffic? If you are configuring Voice and Video over the Internet, you should understand, that some (and probably most) ISPs do not conform to your QoS requirements. You may try to mark your traffic as a "high priority", but you cannot guarantee, that all routers and switches around the world will respect this.

Good luck,

Mike

------ Hands-Free Headset for a Adapters Cisco IP Phone

We are only running video at 6 of our major cites. IP phones are at all of those major cites, but they are currently running as stand alone systems. The goal is to connect all the sites phones systems by 3rd quarter. We are running 3mb MLFR to the sites from the central office. The maine concerns at all offices will be Phones, Citrix, then Video. email is last on the list.

smoove wrote:

here's a copy of my lab router..... This has it all and should give you some good ideas.....

! class-map match-all realtime match dscp ef class-map match-all enterprise-ftp-traffic match access-group 103 match protocol ftp class-map match-all enterprise-http match dscp af21 class-map match-all match-www match access-group 102 class-map match-all match-ftp match access-group 101 class-map match-any mission-critical match dscp af31 match dscp af32 match dscp af33 class-map match-all sqlnet-traffic match protocol sqlnet class-map match-any scanvenger-traffic match protocol kazaa2 match protocol napster class-map match-all match-sw-cs3 match dscp cs3 class-map match-all enterprise-ftp match dscp af11 class-map match-all Scavenger match dscp cs1 class-map match-all citrix-traffic match protocol citrix class-map match-all enterprise-http-traffic match protocol http url "*important*" class-map match-any real-time-traffic match protocol rtp match protocol rtcp class-map match-all match-sw-af31 match dscp af31 class-map match-all match-sw-ef match dscp ef class-map match-any voice-control-traffic match protocol skinny match protocol h323 match protocol mgcp match protocol sip class-map match-all routing match dscp cs6 ! ! policy-map mark-apps1 description "Lab4_excer_4.1" class match-ftp set dscp af11 class match-www set dscp af13 class class-default set dscp default policy-map mark-nbar class sqlnet-traffic set dscp af32 class citrix-traffic set dscp af33 class enterprise-http-traffic set dscp af21 class enterprise-ftp-traffic set dscp af11 class scanvenger-traffic set dscp cs1 class match-sw-cs3 set dscp af31 class class-default set dscp default policy-map mark-nbarv class real-time-traffic set dscp ef class voice-control-traffic set dscp af31 class class-default set dscp default policy-map llq-policy class realtime priority 90 class routing bandwidth remaining percent 1 class mission-critical bandwidth remaining percent 60 random-detect dscp-based random-detect dscp 26 51 60 10 random-detect dscp 28 45 60 10 random-detect dscp 30 42 60 10 class enterprise-http bandwidth remaining percent 13 random-detect dscp-based random-detect dscp 18 30 40 10 class enterprise-ftp bandwidth remaining percent 10 random-detect dscp-based random-detect dscp 10 26 40 10 class Scavenger bandwidth remaining percent 1 random-detect dscp-based random-detect dscp 8 20 40 10 class class-default bandwidth remaining percent 15 random-detect dscp-based random-detect ecn policy-map verify-mark-v class match-sw-ef class match-sw-af31 ! ! ! ! interface FastEthernet0/0 no ip address load-interval 30 duplex full speed 100 ! interface FastEthernet0/0.12 encapsulation dot1Q 12 ip address 10.1.2.1 255.255.255.0 ip policy route-map set-ecn no snmp trap link-status service-policy input mark-nbar ! interface FastEthernet0/0.112 encapsulation dot1Q 112 ip address 10.1.112.1 255.255.255.0 no snmp trap link-status service-policy input verify-mark-v ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/0/0:1 bandwidth 384 ip address 10.2.2.1 255.255.255.0 encapsulation ppp load-interval 30 service-policy output llq-policy ! interface Serial0/3/0 no ip address shutdown fair-queue ! interface Serial0/3/1 no ip address shutdown clockrate 2000000 ! router ospf 1 log-adjacency-changes network 10.0.0.0 0.255.255.255 area 0 ! ip classless ! ip http server ! ip access-list extended best-effort permit ip any any precedence routine ! access-list 101 permit tcp any host 10.99.1.15 eq ftp access-list 101 permit tcp any host 10.99.1.15 eq ftp-data access-list 101 permit tcp host 10.99.1.15 eq ftp any access-list 101 permit tcp host 10.99.1.15 eq ftp-data any access-list 102 permit tcp any host 10.99.1.15 eq www access-list 102 permit tcp host 10.99.1.15 eq www any access-list 103 permit ip any host 10.99.1.15 access-list 103 permit ip host 10.99.1.15 any route-map set-ecn permit 10 match ip address best-effort set ip tos min-monetary-cost !