Medianet: An Architectural Approach for Optimal Video Collaboration

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Technical Marketing Engineer March 6th, 2013 2011 2012

1 Hong Kong, China March 6, 2013 Medianet: An Architectural Approach for Optimal Video Collaboration Jianzhu Zhang Technical Marketing Engineer March 6th, Cisco and/or its affiliates. All rights reserved. Cisco Connect 1

2 What is Video Collaboration? CP-9971 IP Video Phone E20 Jabber 1xxx,3xxx Series T Series EX90 MXP1700 WebEx Video IP Telephony Soft Clients Telepresence Desktop/ Room Video Conferencing Web Conferencing 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 2

Problems to solve for a successful video deployment Monitoring & Instrumentation Visibility into network and application behavior Response time measurements Classification Traffic flow/application

4 Problems to solve for a successful video deployment Monitoring & Instrumentation Visibility into network and application behavior Response time measurements Classification Traffic flow/application recognition and enforcement Ensure QoS control reflects established business policies & priorities Optimization Network Management Reduce application latency Select the optimal path Centralized monitoring & reporting Troubleshooting Pre-assessment Check if network is ready for video deployment Identify and eliminate potential issues 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 4

Cisco s Medianet Architecture Smarter Endpoints

Medianet technology embedded 2012 Cisco and/or

6 Agenda Media Awareness Performance Monitor Mediatrace Pre-deployment Assessment

Defining Media Awareness Media Awareness is A collection of techniques to detect different types of endpoints, media and application types (TelePresence, video

8 Defining Media Awareness Media Awareness is A collection of techniques to detect different types of endpoints, media and application types (TelePresence, video surveillance, desktop collaboration and streaming media) in order to deliver the best experience Cisco and/or its affiliates. All rights reserved. Cisco Connect 8

9 Why Media Awareness? Example Policies QoS Monitoring Routing Security Example Use Cases Prioritize Voice & Video Protect Business Critical Applications Troubleshooting SLA Avoid Bandwidth upgrade by leverage the backup path Protect Business Critical Applications Access Control Firewall traversal

10 Media Awareness Methods How? Mechanisms Technologies Endpoint/Application directly tells the network what type of applications Explicit Endpoint/Application signals to the network Media Metadata Network figures it out Network administrator configures the network Implicit Deep Packet Inspection (control signaling protocols for the establishment of sessions, packet headers and payload) Static configuration Network Based Application Recognition (NBAR/NBAR2) Media Services Proxy (MSP) ACLs

11 MetadataHere Metadata describes the device/application that sends the media flow Application name, vendor, version, model, etc Metadata describes the media flow Media type: voice/video/data Transport type: RTP/RTCP/ Preferably generated by endpoint Generated by network devices if necessary Carried by RSVP (Cisco extension)

12 Media Awareness With Flow Metadata Jabber Announces Metadata Attributes to the Network Flow Identifier Metadata IP Src IP Dst Prot L4 Src L4 Dst App Name App Vendor App Ver Endpoint Model Device Class TCP Cisco-phone Cisco Jabber for Windows Softwarephone Jabber explicitly signals Metadata Attributes to Network Flow Metadata Producer Network use metadata to make smart decisions Metadata Consumer RSVP propagates Flow identifier and Metadata along media path. Metadata Protocol 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 12 12

Flow Metadata Producer MSI for Windows MSI Embedded with Webex Installation wmsi.dll is responsible for originating RSVP message for propagating Metadata traffic.

13 Flow Metadata Producer MSI for Windows MSI Embedded with Webex Installation wmsi.dll is responsible for originating RSVP message for propagating Metadata traffic. Media Services Interface Resides in WebEx Client App API Windows, Linux, MacOS, Android Host Stack/Service Protocols 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 13 1

14 MSI on Endpoints Embedded Applications (EX, C Series, CTS) Included in application SW install

15 Enable Metadata BR1(config)#metadata flow RSVP RSVP Internet RSVP HqR2(config)#interface g0/1 HqR2(config-interface)#metadata flow Enable metadata flow globally, or per interface RSVP snooping required on L2 switch 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 15 1

16 Metadata Based Classifications Application Identifier match application telepresence-media match application rtp match application cisco-phone Dynamic Attribute match application attribute device-class room-conferencing match application attribute device-class surveillance match application attribute media-type video Application Group match application application-group webex-group match application application-group citrix-group Category match application attribute category voice-and-video match application attribute category business-and-productivity-tools 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 16

17 Use Case : Enable performance-monitoring for all telepresence flows Enable performance monitoring on all Telepresence flows Attribute - Application name Attribute value - Telepresence-media

18 Use Case : Set up DSCP uniformly for all room conferencing device Set all Surveillance flows on DSCP CS4 Attribute deviceclass Attribute value - room-conferencing

19 Use Case : Police all Video Traffic to 2 Mbps Police all video traffic to a particular peak rate value Attribute media-type Attribute value - video

marking Class jabber set dscp EF Metadata Trust incoming DSCP Trust incoming DSCP The OS may not allow an application to mark the

20 QoS Policy Using Flow Metadata Marking Traffic at Access Switch and WAN Edge Class-map match-all jabber match application cisco-phone Policy-map marking Class jabber set dscp EF Class-map match-all jabber match application cisco-phone Policy-map marking Class jabber set dscp EF Metadata Trust incoming DSCP Trust incoming DSCP The OS may not allow an application to mark the DSCP value The DSCP may be overwritten when traversing the SP network 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 20 20

21 2 Class-map Migration for Existing QoS Policy Class-map match-all Jabber Match access-group 110 Class-map match-any Jabber Match application cisco-phone Match access-group 110 Class-map: Jabber (match-any) packets, bytes 30 second offered rate bps Match: application cisco-phone packets, bytes 30 second rate bps Match: access-group packets, bytes 30 second rate 0 bps

Policy-map Migration for Existing QoS Policy Policy-map QoS-Policy Class RTP Class Jabber Class-map Jabber Match application cisco-phone Service-policy input: QoS-Policy Class-map: Jabber

22 Policy-map Migration for Existing QoS Policy Policy-map QoS-Policy Class RTP Class Jabber Class-map Jabber Match application cisco-phone Service-policy input: QoS-Policy Class-map: Jabber (match-all) packets, bytes 30 second offered rate bps Match: application cisco-phone Class-map: RTP (match-all) 0 packets, 0 bytes 30 second offered rate 0000 bps Match: ip rtp

Flow Metadata Deployment Consideration Firewall ACL Rules for Flow Metadata ip access-list extended rsvppermit permit 46 any any Access Control List for Flow

23 Flow Metadata Deployment Consideration Firewall ACL Rules for Flow Metadata ip access-list extended rsvppermit permit 46 any any Access Control List for Flow Metadata Permit RSVP message to pass RSVP Internet RSVP Protocol 46 must be allowed 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 23 23

24 Flow Metadata Deployment Consideration How to traverse 3 rd party devices that drop RSVP-TP message ip rsvp udp neighbour <next_hop> Metadata 3 rd party device dropping RSVP-TP Sometimes 3 rd party device erroneously drop RSVP-TP message Workaround: RSVP over UDP 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 24 24

25 Deep Packet Inspection with NBAR Identify IP flows for Quality of Service or filtering Policies Five Tuple + DSCP + AppID NBAR Support for Telepresence and Webex Cisco TelePresence media and signaling supported in IOS 15.1(3)T WebEx desktop-share/audio/video supported in 15.2(2)T NBAR Support for Metadata NBAR Export Metadata in 15.2(4)M Cisco and/or its affiliates. All rights reserved. Cisco Connect 25 2

26 Integrating NBAR with Metadata Class-map match-all App Match application telepresence-media Metadata flow send No MSI Metadata 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 26

27 Media Services Proxy (MSP) MSP is a network-based solution where the switches and routers automatically identify end points and applications, flows coming from them and provide the right set of network services to them automatically Identification mdns Services H323/ RAS CDP SIP/SDP MSP provides a subset of Medianet services on behalf of media end points supporting a range of standard protocols RSVP Flow Metadata QoS/C3PL RTSP Netflow MSP Would work with non-cisco end points also as long as they support the prescribed list of supported protocols for device and flow identification Position at user edge (access) & resource edge (Internet/enterprise edge) 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 27

28 Integrating MSP with Metadata profile flow media-proxy services profile PLY metadata media-proxy services PLY metadata flow No MSI SIP Metadata 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 28

29 Compare and Contrast Capabilities MSI MSP NBAR Consideration Identify the flow and apply the appropriate policies (e.g. QoS, monitoring, routing, etc.) Signaling recognized by MSP is limited (RTSP, SDP, SIP, H.225, H.245). Metadata support Works with application traffic encryption Resource reservation 3 rd Party support MSI is most flexible; MSP will retrieve information from limited protocols; Metadata attributes setup by NBAR is very limited, app support limited. MSP can use RSVP to make BW reservation on behalf of endpoints

31 Performance Monitor Traffic Flow Discovery and Analysis Network device discovers traffic flow for performance analysis System operator defines metrics to gauge performance (yes, similar to flexible netflow but more video specific) Per-Device Hop metric collection for RTP and TCP traffic RTP performance metrics; (Pkt-Rate, Jitter, Loss) TCP performance metrics; (Media Pkt-Rate, Round-Trip-Time) Proactive monitoring for voice and video quality of service 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 31 31

Where to Apply Performance Monitor Perf-Mon policy applied with modular QoS configuration interface GigabitEthernet0/1 service-policy type performance-monitor input pm-policy

32 Where to Apply Performance Monitor Perf-Mon policy applied with modular QoS configuration interface GigabitEthernet0/1 service-policy type performance-monitor input pm-policy service-policy type performance-monitor output pm-policy Telepresence Telepresence 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 32 32

33 CPL - Performance Monitor WAN Telepresence class-map match-all telepresence match dscp cs4 match access-group ipv4! ip access-list extended ipv4 permit host host ! policy-map type performance-monitor pm-policy class telepresence flow monitor inline record pm-ipv4 monitor parameters interval duration 10 timeout 15 history 30 flows 255 monitor metric rtp min-sequential 10 Traffic Class Class-map config, same as in Cisco Policy Language Policy Map Type Perf Mon Policy Map configures interface to monitor for performance Telepresence 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 33 3

Metadata Attributes WebEx Session is Encrypted.

34 Metadata with Media Monitoring Integrating Flow Metadata with Performance Monitor Flow Record Interne t WAN Perf-Mon Flow Records Configures a custom Perf-Mon Flow Record name webex-pm Collect Metadata Attributes WebEx Session is Encrypted. Perf-Mon will collect statistics and Metadata Attributes into a single Flow Record Cisco and/or its affiliates. All rights reserved. Cisco Connect 34 34

35 Metadata with Media Monitoring Use Flow Metadata as filter to select the interesting traffic Internet WAN Cisco Policy Language Recognizes WebEx Metadata Class-map matches specific WebEx Metadata Attributes Create Policy (Perf-Mon) Flow Monitor now Records Perf-Mon metrics with Metadata Attributes 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 35 35

36 Performance Monitor Export WAN Telepresence flow exporter rtp-exp destination transport udp 2055! flow exporter tcp-exp destination ! policy-map type performance-monitor pmpolicy class RTP-Media flow monitor inline record default-rtp exporter rtp-exp class TCP-Vid flow monitor inline record default-tcp! exporter tcp-exp interface GigabitEthernet0/1 service-policy type performance-monitor input pm-policy service-policy type performance-monitor output pm-policy Export RTP PerfMon Stats to Netflow Collector Configures default RTP flow record for metric collection and Netflow Export Telepresence 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 36 3

Metrics For Baseline or Trend Analysis 2012 Cisco

37 Exporting Perf-Mon to Netflow Collector RTP Jitter Metrics Netflow Collectors Report RTP Performance Metrics For Baseline or Trend Analysis 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 37 3

Raise/Clear, SNMP Traps, Syslog, embedded scripts, automatic

38 Proactive Monitoring Thresholds & Alerts Metrics can be tested against thresholds to trigger actions Multi-level Alarm Raise/Clear, SNMP Traps, Syslog, embedded scripts, automatic mediatrace MSI MSI 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 38

Alert Threshold for Video Conferencing WAN 10.87.93.

39 Alert Threshold for Video Conferencing WAN Telepresence policy-map type performance-monitor pm-policy class telepresence react 1 rtp-jitter-average threshold value gt 10 alarm severity critical action syslog action snmp react 2 transport-packets-lost-rate threshold value gt 0.05 alarm severity critical action syslog action snmp >10 ms Jitter Target Threshold Configures Target Threshold to Trigger SNMP & Syslog Critical Alert Telepresence 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 39 3

40 Syslog Message Exceeding Jitter Threshold WAN Telepresence Telepresence Mar 22 18:17:00: %PERF_TRAFFIC_REACT-2-CRITSET: TCA RAISE. Detailed info: Threshold value crossed - current value 12 Flow info: ipv4 source address , ipv4 destination address , transport source-port 4441, transport destination-port 3331, transport rtp ssrc 30583, Policy info: Policy-map pm-policy, Class telepresence React info: id 1, criteria rtp-jitter-average, severity critical, alarm type discrete, threshold range (10, ] 12 ms Jitter Induced Alert Raised per individual 5 Tuple Flow Policy Violation Indicator Alert shows violated Policy Info and React Info 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 40 4

43 Mediatrace Capabilities Network Trace Collection for Performance Metrics Automatic Network Node Discovery along media path RSVP Messages For Transport Traceroute Messages to Discover NON-Mediatrace Devices Inquires Performance Statistics from Nodes along media path Hop By Hop Performance Analysis User specified Mediatrace query options Report Consolidated Metrics on Terminal Console or NMS Command Line Execution EEM Script Execution Cisco Prime Collaboration Manager 1.1 Execution 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 43 43

execution formats Poll minimal config, run from IOS exec Session flexible configuration, allows for periodic, recurring

44 Mediatrace Components Initiator - injects the trace Responder - sends data back to initiator Multiple types of data requests Hops hop discovery System system information Performance monitor enables perf-mon, then collects data Multiple execution formats Poll minimal config, run from IOS exec Session flexible configuration, allows for periodic, recurring requests and history flow Initiator responder responder 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 44

45 Mediatrace: RSVP Messages as a Transport RSVP- TP BR-CAT3750 RSVP- TP RSVP- TP Exclusive RSVP Configuration NOT required (transport only) RSVP messages routed on same path as media packets RSVP message transports collected media monitoring statistics 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 45 4

Session Troubleshooting on CPCM Visualize the media path 2012

Session Troubleshooting on CPCM Visualize where the issue is introduced

Session Troubleshooting on CPCM Visualize the potential root cause

Mediatrace on Endpoints NMS Responder Responder

management Mediatrace Initiator 2012 Cisco

Network Readiness Assessment 2012 Cisco and/or

52 Network Readiness Assessment: Telepresence Enterprise IP Back Bone Branch /27 Branch /24 Is the network ready to support Video? 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 52 5

53 Synthetic Telepresence RTP Stream Telepresence Mbps Sender Lo0: RT P R T P RT P IPSLA Report RT P Responder Lo0: ip sla 1 video source-ip source-port 9999 profile CTS- 1080P-Best duration 20 frequency 60 dscp cs4 ip sla schedule 1 life 720 start-time now IPSLA-VO TP Video Profiles: Profile Option Cisco Telepresence System 1080p 30fps 4000kbps Best Quality CTS-1080P-Better, CTS-1080P-Good, CTS-720P-Best CTS-720P-Better, CTS-720P-Good, CTS-720P-Lite 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 53 5

54 IPSLA-VO Custom Video Traffic Profile IP Video Surveillance Camera HD Mbps Sender RT P R T P RT P IPSLA Report RT P Responder Isr-g2#show run b ip sla ip sla profile video IPVSC endpoint custom description Cisco 4000 Series HD Camera resolution 1080P frame rate 30 bitrate maximum 4000 bitrate window-size 167 frame intra size maximum 100 frame intra refresh interval 1 rtp size average 1300 rtp buffer output shaped Custom Video Traffic Profile Name Profile parameters for IP Video Surveillance Camera Video Stream Parameters RTP Traffic Stream parameters unique to IPVSC video application 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 54 5

55 Synchronize Clock for Accurate Delay Statistics GPS Satellites GPS sync GPS Device NTP Server local NTP sync GPS sync GPS Device NTP Server local NTP sync HQ-R1(config)#ntp server ntp1.server.com HQ-R1(config)#ip sla sender BR1(config)#ntp server ntp2.server.com BR1(config)#ip sla responder NOT recommended to synchronize the clocks of Sender and Responder to same NTP/SNTP server 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 55 5

IPSLA-VO CLI Output Sender Lo0: 10.87.93.

56 IPSLA-VO CLI Output Sender Lo0: RTP RTP RTP RTP Responder Lo0: IPSLA Report IPSLA test duration One Way Latency Results Interpacket Delay Variation IPSLA Test Results 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 56 5

57 Typical Application Impairment Targets General Guidelines Application Latency Jitter Loss (VoD) Loss (Live) Streaming Video < 1000 ms < 100 ms < 0.1% < 0.05% Video Conferencing < 150 ms < 30 ms NA < 0.10% TelePresence < 150 ms < 10 ms NA < 0.05% Digital Signage < 1000 ms < 100 ms < 0.1% 0% IPTV < 1000 ms < 100 ms < 0.1% 0% Video Surveillance < 1000 ms < 100 ms < 0.1% < 0.05% Source: Cisco and/or its affiliates. All rights reserved. Cisco Connect 57 57

58 References Cisco Networking Capabilities for Medianet Medianet Deployment Guide

59 Take Away Implementing Optimal Video Collaboration with Medianet Design Media Aware Network Targeted Treatment with Pinpoint Accuracy Easy when the application provides all the description Performance Monitoring Tools Getting visibility into application health and network bandwidth usage Fault Isolation Increase productivity with automation Validation and Readiness Assessment Test and validate remotely 2012 Cisco and/or its affiliates. All rights reserved. Cisco Connect 59 59

Patricia Costa Product Manager, Cisco Systems

Patricia Costa Product Manager, Cisco Systems Patricia Costa patcosta@cisco.com Product Manager, Cisco Systems Dec 6 th, 2011 2010 Cisco and/or its affiliates. All rights reserved. Cisco Public 1 2010 Cisco and/or its affiliates. All rights reserved.