Auto Qo S Technical Presentation 1 03 2002

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Cisco Auto. Qo. S Technical Presentation Ramya Venkatraman Technical Marketing Engineer – Qo. S Internet Technologies Group Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 2

Agenda • Introduction • Cisco Auto. Qo. S Framework • Automation with Cisco Auto. Qo. S • Auto. Qo. S Deployment Case Study • Summary Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 3

Introduction – IETF Diff. Serv Architecture (RFC-2475) • The idea: different service levels for packets • The service: some significant characteristics of packet transmission in one direction across the network Examples: bandwidth and latency Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 4

A New Paradigm for Automating the Delivery of Network Quality of Service • Key Takeaways: Simpler Qo. S deployments – Reduces operator errors Cheaper Qo. S deployments – Up to 2/3 rds reduction in cost Faster Qo. S deployments – Up to 2/3 rds reduction in deployment time • Cisco Auto. Qo. S initial focus: Qo. S for Voice over IP IP Telephony is here! IP Telephony requires Qo. S deployment can be challenging Cisco Auto. Qo. S makes Vo. IP deployments simpler, cheaper, and faster • Cisco Auto. Qo. S retains 100% customer control over configuration Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 5

Cisco Qo. S Introduction: A Complete Diffserv Toolkit Buffer Management & WRED Queuing & Scheduling (WRR, PQ) Policing & Marking (Aggregate & Micro Flow Policing) ROUTER Classification & Marking (DSCP, IP Precedence, n. BAR, etc. ) Congestion Avoidance Mechanisms (WRED, WRED-ECN) Traffic Conditioners (Policing, Shaping) Congestion Management Techniques (WFQ, CBWFQ, LLQ) Link Efficiency Mechanisms (Compression, Fragmentation) FRAME RELAY Auto. Qo. S Technical Presentation, 1/03 PPP HDLC © 2002, Cisco Systems, Inc. All rights reserved. ATM GE PROVISIONING & MONITORING CBQo. SMIB, QPM 3. 0 SWITCH Classification (Co. S, DSCP, ACLs, VLAN, Port-based) FE 6

Cisco Auto. Qo. S - Vo. IP Framework Diff. Serv Functions Automated • Automation and simplification of the existing user interface to expedite deployment of Qo. S features for Vo. IP • Fine-tuning of Auto. Qo. S generated parameters by user, if desired Diff. Serv Function Classification Cisco IOS Qo. S Feature NBAR DSCP, Port Behavior Classification of Vo. IP based on packet attributes or port trust Marking Class-Based Marking Set L 3 / L 2 attributes to bucketize packets into a class Congestion Management % based LLQ, Provide EF treatment to voice & BE treatment to data Shaping Class-based Shaping or FRTS Shape to CIR to prevent burst & smooth Traffic to Configured Rate Link Efficiency Mechanism Header Compression Reduce the Vo. IP bandwidth requirement Link Efficiency Mechanism Link Fragmentation & Interleaving Reduce jitter experienced by voice packets Auto. Qo. S Technical Presentation, 1/03 WRR © 2002, Cisco Systems, Inc. All rights reserved. 8

Cisco Auto. Qo. S Framework – Network Based Application Recognition What Applications are running through my network? Link Utilization Citrix Netshow Fasttrack 25% 10% FTP HTTP 30% 20% • Benefits Identifies Layer 4 to Layer 7 applications and protocols • Stateful & deep packet inspection Protocol Discovery analyzes application traffic patterns in real time and identifies traffic is running on the network • Platform Support Cisco 1700, 2600, 3600, 7100, 7200, Flex. Wan Series Routers Switches: MSFC support on Sup 1 a & Sup 2 introduced in Release 12. 1(13)E Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 9

Cisco Auto. Qo. S Framework – n. BAR RTP Payload Type Classification • Eases classification of voice and video traffic Vo. IP, streaming / real time video, audio / video conferencing, Fax Over IP • Distinguishes between RTP packets based on payload type and CODECS • Removes dependencies on UDP Port Range & DSCP markings Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. CODEC Payload Type G. 711 (Audio) 0 (mu-law) 8 (a-law) G. 721 (Audio) 2 G. 722 (Audio) 9 G. 723 (Audio) 4 G. 728 (Audio) 15 G. 729 (Audio) 18 H. 261 (Video) 31 MPEG-1 (A/V) 14 (Audio), 32 (Video), 33 (A-V) MPEG-2 (A/V) Dynamic 96 - 127 10

Cisco Auto. Qo. S Framework – Percentage Based Policies • Problems Fixed CIR imposes scalability issues Service policies differ by interface, with a wide range of interface bandwidths • Solution Configure policies as a percentage of available bandwidth • Advantage Increased Scalability & Manageability Same Policy Map can be applied on multiple interfaces and on interfaces with varying bandwidth Build Once, Apply Many Policies Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 11

Cisco Auto. Qo. S Framework – MLPPP Link Fragmentation & Interleaving Problem: large packets “freeze out” voice Voice Packet 60 bytes Every 20 ms Voice Packet 60 bytes Every >214 ms ~214 ms Serialization Delay Voice 1500 Data Bytes Voice 10 mbps Ethernet 1500 Data Bytes 56 kb WAN Voice 1500 Data Bytes Voice 10 mbps Ethernet • Implemented via Multilink PPP (MLP) over FR, ATM, and leased lines • Fragments are interleaved with the real-time packets, reducing the Serialization delay experienced by Voice packets Auto. Qo. S Technical Presentation, 1/03 Benefit: reduce the jitter in voice calls © 2002, Cisco Systems, Inc. All rights reserved. 12

Cisco Auto. Qo. S Framework – RTP Header Compression PROBLEM: Header = 2 X Payload CODEC PPP 6 Bytes of Header ATM 53 Bytes Cells with a 48 Byte Payload Frame-Relay 4 Bytes of Header G. 711 at 50 pps 82. 4 kbps 106 Kbps 81. 6 kbps G. 711 at 33 pps 75. 5 kbps 84 Kbps 75 kbps G. 729 A at 50 pps 26. 4 kbps 42. 4 Kbps 25. 6 kbps G. 729 A at 33 pps 20 kbps 28 Kbps 19. 5 kbps BENEFIT: Reduction in Voice Bandwidth Requirement CODEC PPP 6 Bytes of Header ATM 53 Bytes Cells with a 48 Byte Payload Frame-Relay 4 Bytes of Header G. 711 at 50 pps 68 kbps N/A 67 kbps G. 711 at 33 pps 66 kbps N/A 65. 5 kbps G. 729 A at 50 pps 12 kbps N/A 11. 2 kbps G. 729 A at 33 pps 10. 5 kbps N/A 10 kbps Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 13

Automation with Cisco Auto. Qo. S – Vo. IP Intelligence in the LAN Building Access Layer 2 Switch Distribution Layer 3 Switch Core Layer 3 Switched Backbone Server Farm • • Server Farm Enable Trust boundary (phone, access, uplink/downlink) Enable Priority Queuing where required Modify Queue Admission criteria where required Configure Co. S to DSCP and IP Prec to DSCP maps where required Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 15

Automation with Cisco Auto. Qo. S – Vo. IP Intelligence in the WAN 125 Remote Sites Build MQC based policies for Vo. IP Intelligent Classification (Trust / Untrust) High Speed & Low Speed Qo. S Policies Automatically enable Qo. S features specific to underlying transport protocol (FR, ATM, PPP, FR-to-ATM) Enable Traffic Shaping where required Enable LFI (FRF. 12, MLP) where required Enable CRTP Monitoring & SNMP Alerts Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 16

Cisco Auto. Qo. S Benefits Router Platforms Cisco 2600, 2600 -XM, 3600, 3700, and 7200 Series Routers • User can meet the voice Qo. S requirements without extensive knowledge about: Underlying technologies (i. e. : PPP, FR, ATM) Service policies Link efficiency mechanisms • Auto. Qo. S lends itself to tuning of all generated parameters & configurations Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 17

Automation with Cisco Auto. Qo. S Router Platforms • Supported on serial (PPP & HDLC), ATM PVCs, FR DLCIs and FR/ATM links Only on point-to-point sub-interfaces for FR and low speed ATM PVCs Policies are specific to underlying transport layer protocol • Automatically identifies H. 323, MGCP, H. 225 (Unicast), SIP and Skinny Signaling Protocols • Command Line Interface auto qos voip [trust] – Untrusted Mode by default auto qos voip [fr-atm] – Enabled on FR DLCI for FR/ATM Interworking Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 18

Automation with Cisco Auto. Qo. S Router Platforms (Cont) • Classification Trust: relies on DSCP markings from switches (DSCP EF & AF 31) Un trust: n. BAR RTP Payload Type Classification & Access Lists • Provisioning LLQ protects voice bearer and voice signaling traffic WFQ shares bandwidth fairly in the Best Effort Data class • Policy Generation Enables high- (>768 Kbps) and low- (<=768 Kbps) speed Qo. S • Monitoring Auto. Qo. S Technical Presentation, 1/03 SNMP monitoring events are reported if the SNMP server is enabled Thresholds activated in RMON alarm table to monitor LLQ drops © 2002, Cisco Systems, Inc. All rights reserved. 19

Automation with Cisco Auto. Qo. S Router Platforms (Cont) Without Auto. Qo. S Configuring Qo. S for Vo. IP on Low Speed Frame Relay WAN Link class-map Vo. IP-Bearer match protocol rtp audio class-map Vo. IP-Control match access-group 101 ! policy-map Qo. S-Policy class Vo. IP-Bearer priority percent 30 set ip dscp ef class Vo. IP-Control bandwidth percent 5 set ip dscp af 31 class-default fair-queue ! Access-list 101 permit tcp Access-list 101 permit udp Access-list 101 permit tcp Auto. Qo. S Technical Presentation, 1/03 Classify the traffic of interest for Qo. S Policy Define Qo. S Policy Treatment Frame Relay Define ACLs to classify Vo. IP Signaling any any any © 2002, Cisco Systems, Inc. All rights reserved. any any any eq 1720 \H. 323 range 11000 11999 \H. 323 eq 2427 \MGCP eq 2428 \MGCP range 2000 2002 \ Skinny 20

Automation with Cisco Auto. Qo. S Router Platforms (Cont) Without Auto. Qo. S Enabling FRTS, FRF. 12 & CRTP interface Serial 4/0 encapsulation frame-relay Enable Frame Relay frame-relay traffic-shaping Traffic Shaping ! interface Serial 4/0. 1 point-to-point bandwidth 256 ip address 10. 1. 71. 1 255. 0 frame-relay interface-dlci 100 Apply FR class-map to DLCI class Vo. IP Frame-relay ip rtp header-compression ! Enable RTP Header Compression map-class frame-relay Vo. IP frame-relay cir 256000 Frame Relay Traffic Shaping frame-relay bc 2560 frame-relay be 0 Apply Qo. S Policy frame-relay mincir 256000 service-policy output Qo. S-Policy frame-relay fragment 320 Auto. Qo. S Technical Presentation, 1/03 Frame Relay Enable FRF. 12 © 2002, Cisco Systems, Inc. All rights reserved. 21

Automation with Cisco Auto. Qo. S Router Platforms (Cont) With Auto. Qo. S FRTS enabled by interface Serial 4/0 Auto. Qo. S encapsulation frame-relay traffic-shaping You specify BW, IP Addr ! & FR DLCI interface Serial 4/0. 1 point-to-point bandwidth 256 ip address 10. 1. 71. 1 255. 0 You enable Auto. Qo. S frame-relay interface-dlci 100 class Auto. Qo. S-Vo. IP-FR-Serial 4/0 -100 CRTP configuration auto qos voip generated by Auto. Qo. S frame-relay ip rtp header-compression ! map-class frame-relay Auto. Qo. S-Vo. IP-FR-Serial 4/0 -100 frame-relay cir 256000 FRTS & FRF. 12 settings frame-relay bc 2560 generated by Auto. Qo. S frame-relay be 0 frame-relay mincir 256000 service-policy output Auto. Qo. S-Policy-Un. Trust frame-relay fragment 320 Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. Frame Relay 22

Automation with Cisco Auto. Qo. S Router Platforms (Cont) class-map match-any Auto. Qo. S-Vo. IP-RTP-Untrust match protocol rtp audio match access-group name Auto. Qo. S-VOIP-RTCP class-map Auto. Qo. S-Vo. IP-Control-Untrust match access-group name Auto. Qo. S-VOIP-Control class-map match-any Auto. Qo. S-VOIP-Remark match ip dscp ef Classification done by match ip dscp af 31 Auto. Qo. S ! policy-map Auto. Qo. S-Policy-Untrust class-map Auto. Qo. S-Vo. IP-RTP-Untrust priority percent 70 set dscp ef class Auto. Qo. S-Vo. IP-Control-Untrust bandwidth percent 5 Provisioning done by set dscp af 31 Auto. Qo. S class Auto. Qo. S-Vo. IP-Remark set dscp default class-default fair-queue Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. With Auto. Qo. S Frame Relay 23

Automation with Cisco Auto. Qo. S Router Platforms (Cont) With Auto. Qo. S Monitoring Drops in LLQ • Thresholds are activated in RMON alarm table to monitor drops in Voice Class • Default drop threshold is 1 bps Frame Relay rmon event 33333 log trap Auto. Qo. S description “Auto. Qo. S SNMP traps for Voice Drops” owner Auto. Qo. S rmon alarm 33350 cb. Qo. SCMDDrop. Bit. Rate. 2881. 2991 30 Absolute rising-threshold 1 33333 falling-threshold 0 Owner Auto. Qo. S RMON event configured generated by Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 24

Cisco Auto. Qo. S Benefits Switch Platforms Cisco Catalyst 6500, 4500, 3550, and 2950 EI Switches • User can meet the voice Qo. S requirements without extensive knowledge about: Trust boundary Co. S to DSCP mappings Weighted Round Robin (WRR) & Priority Queue (PQ) Scheduling parameters • Generated parameters and configurations are user tunable Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 25

Automation with Cisco Auto. Qo. S Switch Platforms • Single command at the interface level configures interface and global Qo. S Support for Cisco IP Phone & Cisco Soft Phone Support for Cisco Soft Phone currently exists only on the Cat 6500 Trust Boundary is disabled when IP Phone is moved / relocated Buffer Allocation & Egress Queuing dependent on interface type (GE/FE) • Supported on Static, dynamic-access, voice VLAN access, and trunk ports • CDP must be enabled for Auto. Qo. S to function properly • Cisco Catalyst 2950 EI supports WRR, Strict Priority Scheduling, and Strict Priority Queuing Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 26

Automation with Cisco Auto. Qo. S Switch Platforms (Cont) Command Line Interface • Cisco Catalyst 6500 Switch Global: set qos autoqos Interface: set port qos autoqos voip [ciscosoftphone | ciscoipphone] Trust Boundary: Set port qos autoqos trust [cos|dscp] • Cisco Catalyst 3550 and 2950 EI Switches auto qos voip trust – Qo. S Labels in ingress packets are trusted auto qos voip Cisco-phone – Extends trust boundary if IP Phone detected • Cisco Catalyst 4500 Switch Similar to Cat 3550/2950 Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 27

Automation with Cisco Auto. Qo. S Switch Platforms (Cont) Without Auto. Qo. S Configuring Qo. S for Vo. IP on Trusted & Untrusted Ports in the LAN set qos enable set port qos mod/port cos 0 set port qos mod/port cos-ext 0 set port qos mod/port trust-ext untrusted set port qos mod/port trust-device ciscoipphone set qos acl ip ACL_IP-PHONES trust-cos any commit qos acl ACL_IP-PHONES set qos acl map ACL_IP-PHONES mode/port set port qos mod/port trust-cos set qos ipprec-dscp-map 0 10 18 26 34 46 48 56 set qos cos-dscp-map 0 10 18 26 34 46 48 56 set qos map 2 q 2 t tx queue 2 2 cos 5, 6, 7. . . Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 6500 6500 28

Automation with Cisco Auto. Qo. S Cisco Catalyst 6500 Series Switch With Auto. Qo. S User enables Auto. Qo. S set port macro 4/1 ciscoipphone 10 110 Port 4/1 has been fully configured for ciscoipphone. Data vlan set to 10, auxiliary vlan set to 110, port based autoqos configured. Global autoqos configured on all ports. Generated by Auto. Qo. S set qos autoqos All ingress and egress Qo. S scheduling parameters configured on all ports. Co. S to DSCP, DSCP to COS and IP Precedence to DSCP maps configured. Global Qo. S configured 6500 6500 set port qos autoqos 4/1 voip ciscoipphone Port 4/1 has been fully configured for voip. Global autoqos configured on all ports Generated by Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 29

Automation with Cisco Auto. Qo. S Cisco Catalyst 3550 Series Switch Without Auto. Qo. S Configuring Qo. S for Vo. IP on Trusted Ports in the LAN Map Co. S Values in incoming packets to DSCP values mls qos map cos-dscp 0 10 18 26 34 46 48 56 mls qos Ingress Classification set ! to trust Co. S value interface Fast. Ethernet 0/1 received in the packet Description to IP Phone mls qos trust Co. S Assign packets with Co. S 5 to Queue 4 (Expedite Queue) wrr-queue cos-map 4 5 priority-queue out 3500 Enable Egress Expedite Queue switchport voice vlan 111 switchport access vlan 11 switchport priority extend cos 0 6500 3500 Enable Trust Boundary on the phone Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 30

Automation with Cisco Auto. Qo. S Cisco Catalyst 3550 Series Switch Interface Fast. Ethernet 0/1 mls qos trust device cisco-phone mls qos trust cos auto qos voip cisco-phone You enable Auto. Qo. S wrr-queue bandwidth 20 1 80 0 wrr-queue min-reserve 1 5 wrr-queue min-reserve 2 6 wrr-queue min-reserve 3 7 Generated by wrr-queue min-reserve 4 8 Auto. Qo. S wrr-queue cos-map 1 0 1 2 4 wrr-queue cos-map 3 3 6 7 wrr-queue cos-map 4 5 3500 Interface Gigabit. Ethernet 0/1 priority-queue out mls qos trust device cisco-phone mls qos trust cos auto qos voip cisco-phone You enable Auto. Qo. S wrr-queue bandwidth 20 1 80 0 wrr-queue-limit 80 1 20 1 Generated by wrr-queue cos-map 1 0 1 2 4 Auto. Qo. S wrr-queue cos-map 3 3 6 7 wrr-queue cos-map 4 5 Auto. Qo. S Technical priority-queue out Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. With Auto. Qo. S 6500 3500 31

Automation with Cisco Auto. Qo. S Cisco Catalyst 2950 EI Series Switch Without Auto. Qo. S Configuring Qo. S for Vo. IP on Trusted & Untrusted Ports in the LAN mls qos map cos-dscp 0 10 18 26 34 46 48 56 wrr-queue cos-map 1 0 1 2 4 Map Co. S Values in incoming wrr-queue cos-map 3 3 6 7 packets to DSCP values wrr-queue cos-map 4 5 wrr-queue bandwidth 20 1 80 0 Assign packets with Co. S 5 to ! Queue 4 (Expedite Queue) Interface Gigabit. Ethernet 0/1 Description Uplink to Trusted Source mls qos trust dscp ! 3500 interface Fast. Ethernet 0/1 Description to IP Phone Ingress Classification set to trust mls qos trust Co. S value received in the packet switchport voice vlan 111 switchport access vlan 11 switchport priority extend cos 0 6500 3500 Enable Trust Boundary on the phone Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 32

Automation with Cisco Auto. Qo. S Cisco Catalyst 2950 EI Series Switch With Auto. Qo. S Generated by Auto. Qo. S mls qos map cos-dscp 0 8 16 26 32 46 48 56 wrr-queue bandwidth 20 1 80 0 no wrr-queue cos-map 1 0 1 2 4 wrr-queue cos-map 3 3 6 7 wrr-queue cos-map 4 5 ! You enable Auto. Qo. S interface Gigabit. Ethernet 0/2 auto qos voip trust mls qos trust cos ! auto qos voip trust Interface Fast. Ethernet 0/1 auto qos voip cisco-phone mls qos trust device cisco-phone 6500 3500 auto qos voip cisco-phone Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 33

Qo. S Deployment for Vo. IP Goal: Deploy consistent, end-to-end Qo. S for Vo. IP WAN Access Layer Classification & Trust Boundary Marking / Remarking Egress Queue Scheduling Buffer Management Auto. Qo. S Technical Presentation, 1/03 Intelligent Classification Bandwidth Provisioning Admission Control Shaping Link Fragmentation & Interleaving Header Compression © 2002, Cisco Systems, Inc. All rights reserved. Distribution Layer 3 Policing Egress Scheduling (Multiple Queues with WRR) Priority Queuing for VOIP Buffer Management 35

Qo. S Deployment for Vo. IP – Without Auto. Qo. S • Identify Traffic of Interest • Trust & Untrust • Consistent end-to-end Qo. S across LAN & WAN • Platform Consistency • Monitor the performance of Voice traffic Monitoring & Reporting Application Classification Key Elements of Qo. S Deployment Policy Generation Configuration • Link Efficiency Mechanisms • Co. S to DSCP to Queue mapping • WRR & WRED parameters • Transport specific features • Classes • Bandwidth requirements • High Speed Vs Low Speed Qo. S • Buffer Management Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 36

Qo. S Deployment for Vo. IP – Manual Approach without Auto. Qo. S In the WAN 1. 2. 3. 4. 5. 6. 7. Auto. Qo. S Technical Presentation, 1/03 Identify applications and protocols of interest Untrusted edge vs. trusted edge Remark traffic based on classification Determine how many classes should be configured, and what queuing should be enabled Determine class bandwidth requirements Configure transport specific features Traffic Shaping, MLPPP & TX-Ring settings Enable bandwidth specific Qo. S features Header Compression & Fragmentation Settings (MLP/LFI or FRF. 12) Configure alarm and event settings for monitoring purposes © 2002, Cisco Systems, Inc. All rights reserved. 37

Qo. S Deployment for Vo. IP – Manual Approach without Auto. Qo. S In the LAN 1. Identify Trust Boundary & Extended Trust Boundary 2. 4. Remark traffic based on classification Determine Co. S to DSCP and IP Precedence to DSCP mappings Map Co. S values to the different egress queues 5. Queue Size Settings & WRR weights 3. FE Vs GE ports 6. 7. Auto. Qo. S Technical Presentation, 1/03 Determine Co. S to Egress queue mapping Configure Qo. S on a per port basis © 2002, Cisco Systems, Inc. All rights reserved. 38

Qo. S Deployment for Vo. IP– Automation with Cisco Auto. Qo. S (Phase I) Identify Vo. IP Bearer & Control Traffic Classification Evaluate Network Environment & Generate Initial Policy Generation One Command Provisioning Vo. IP Packet Drop Alerts CBQo. SMIB Support Monitoring Full LAN & WAN Interoperability Consistency Accomplish all of the above in just 4 steps 1. 2. 3. 4. Auto. Qo. S Technical Presentation, 1/03 Configure Interface / Sub-Interface Bandwidth Configure IP Address Enable Auto. Qo. S (Trust Vs Un Trust) Fine Tune Parameters, if required © 2002, Cisco Systems, Inc. All rights reserved. 39

Qo. S Deployment for Vo. IP - Single Step Approach Using Cisco Auto. Qo. S In the LAN Enable Cisco Auto. Qo. S for Vo. IP on the switch 1. 2. 3. Cisco Catalyst 2950 and 3550 Switches: enable Auto Qo. S on the interface auto qos voip [trust | cisco-phone] Cisco Catalyst 6500 Switch: enable Auto Qo. S on the port set qos autoqos set port qos autoqos voip [ciscosoftphone | ciscoipphone] set port qos autoqos trust [cos|dscp] Parameter Tuning Monitor Cisco Auto. Qo. S on the Switch 1. 2. 3. Auto. Qo. S Technical Presentation, 1/03 sh mls qos interface [buffers | queuing] (above command not supported on 2950) show mls qos maps cos-dscp show auto qos interface © 2002, Cisco Systems, Inc. All rights reserved. 40

Qo. S Deployment for Vo. IP - Single Step Approach Using Cisco Auto. Qo. S (Cont) In the WAN Enable Cisco Auto. Qo. S for Vo. IP via Router CLI 1. Configure IP address on interface or sub interface 2. Configure bandwidth on interface or sub interface 3. Enable “autoqos voip [ trust | fr-atm ]” on PVC, DLCI or interface 4. Parameter tuning & Configuration modifications Monitor Cisco Auto. Qo. S on the Router 1. show policy-map interface 2. show auto qos [interface ] 3. show rmon [alarms | events] Monitor Cisco Auto. Qo. S using QPM 3. 0 Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 41

Qo. S Deployment for Vo. IP – Class-Based Qo. S MIB (CBQo. SMIB) • Provides read access to configuration and statistical information for MQC based Qo. S Policies • Provides MQC configuration information and application statistics • Provides CBQo. S statistics on a per-policy/per-interface or PVC basis • Monitor pre- and post-policy bit rates on a device Interface 2 Inbound Policy Interface 1 Outbound Policy SNMP Interface 3 Inbound Policy CBQo. SMIB Provide CBQo. S Statistics & Configuration Information Per policy ftp: //ftp. cisco. com/pub/mibs/v 2/CISCO-CLASS-BASED-QOS-MIB. my Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 42

Qo. S Deployment for Vo. IP – Monitoring & Reporting with QPM 3. 0 CLI Cisco Works Qo. S Policy Manager interface Serial 0 –bandwidth 256 –Ip address 10. 1. 61. 1 255. 0 –auto qos voip interface Multilink 1 ip address 10. 1. 61. 1 255. 0 ip tcp header-compression iphc-format load-interval 30 service-policy output Qo. S-Policy ppp multilink fragment-delay 10 ppp multilink interleave • Device-Based • Single Command • Intelligent Classification • Reporting via Syslog & Traps Auto. Qo. S Technical Presentation, 1/03 • Central web based tool • Qo. S config guidance • Templates, customize • Deployment control • File export © 2002, Cisco Systems, Inc. All rights reserved. • Monitoring • Reports • Troubleshooting • Multi-device, global 43

Qo. S Deployment for Vo. IP - Monitoring and Reporting with CBQo. SMIB & QPM 3. 0 Before QOS After QOS Policies have been applied CMPre. Policy. Pkt CMPre. Policy. Byte CMPost. Policy. Pkt CMDrop. Byte CMNo. Buf. Drop. Pkt Bronze Silver Gold Drop=Pre- Post Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. Bronze Silver 44

Highlights – Cisco Auto. Qo. S in the WAN • Simplifies Qo. S configuration for Vo. IP Phase I – a single command enables Cisco Qo. S for Vo. IP • End-to-end simplification, automation, and intelligence Classifies Vo. IP bearer and signaling (H. 323, Skinny, H. 225 Unicast, SIP & MGCP) traffic Provisioning based on Cisco Best Practices • Generated parameters and configuration can be user modified Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 47

Highlights – Cisco Auto. Qo. S in the WAN (Cont) • Intelligent policy generation Based on available bandwidth & underlying L 2 technology Enables IP RTP Header Compression and Frame Relay Traffic Shaping, if required Decides on fragmentation settings (FRF. 12, MLP/LFI), if required • Supported on FR, ATM, HDLC, PPP & FR-to. ATM links • Provides RMON alerts, if Vo. IP packet are dropped Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 48

Highlights – Cisco Auto. Qo. S in the LAN • Simplifies Qo. S configuration for Vo. IP Phase I – a single command enables Cisco Qo. S for Vo. IP Support for Cisco IP Phone & Cisco Soft. Phone • Optimal Voice Performance Parameters based on Cisco Best Practices, extensive lab testing, and input from a broad base of AVVID installations Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 49

Highlights – Cisco Auto. Qo. S in the LAN (Cont) • Intelligent Policy generation Automatically decides on trust and extended trust boundary settings – User can bypass telephone and connect their PC directly to the switch – Disables trust when IP phone is relocated Configures Co. S to DSCP to Queue mapping Decides on WRR settings • Supported on Static, Dynamic-access, voice VLAN, and trunk ports Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 50

The Cisco Advantage – Most Comprehensive Qo. S Functionality Available üFirst to ship Advanced Differentiated Services Toolkit in 2000 üComprehensive Qo. S language framework via MQC üFirst to ship Intelligent Application Level classification (Cisco Network Based Application Recognition - NBAR) üComplete Qo. S monitoring & reporting support with Cisco Works QPM 3. 0 üBroadest platform support (switch & router space) for Qo. S üFull interoperability across the LAN & WAN Diff. Serv nodes üOnly vendor to ship a Complete End-to-End Differentiated Services solution First to ship Qo. S Automation & Simplification Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 51

Availability Platforms Software Cisco Catalyst 2950 EI Cisco Catalyst 3550 Routers Auto. Qo. S Technical Presentation, 1/03 Cisco Catalyst 4500 Cisco IOS Software Release 12. 1(19)E Cisco Catalyst 6500 Cisco Catalyst Operating System 7. 5. 1 Cisco 2600 Series Cisco 2600 XM Series Cisco 3600 Series Cisco 3700 Series Cisco 7200 Series Switches Cisco IOS Software Release 12. 1(12 c)EA 1 Cisco IOS Software Release 12. 2(15)T © 2002, Cisco Systems, Inc. All rights reserved. 52

References Qo. S Home Page http: //www. cisco. com/go/qos Cisco. Works QPM 3. 0 http: //www. cisco. com/en/US/products/sw/cscowork/ps 2064 Auto. Qo. S Technical Documentation for Cat 3550 & 2950 http: //www. cisco. com/univercd/cc/td/doc/product/lan/c 3550/12112 cea/ 3550 scg/swqos. htm http: //www. cisco. com/univercd/cc/td/doc/product/lan/cat 2950/12112 ce a/2950 scg/swqos. htm Auto. Qo. S Technical Documentation for Cat 6500 http: //lbj. cisco. com/push_targets 1/ucdit/cc/td/doc/product/lan/cat 6000 /sw_7_5/confg_gd/autoqos. htm#10002 Auto. Qo. S Technical Presentation, 1/03 © 2002, Cisco Systems, Inc. All rights reserved. 53