preparing your network for new media · three major components of auto-configuration: •device...
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© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 1
Preparing Your Network For New MediaEnabling a “Video Ready” Network for Business
Craig HillDistinguished SE, U.S. Federal [email protected]
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 2
“ I want a network infrastructure that will eliminate the worry when my network staff is asked to implement video applications. “
IT Manager, Financial Sector
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 3
3
Introduction
Current trends
Video Impact on the
network
Medianet Medianet
Architectures
Key architecture
focus areas
Cisco Innovations
Management and
Roadmap
What is Medianet?
Components,
Approaches, and
Applying to the
network operations
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 4
0
10
20
30
40
50
60
70
2009 2010 2011 2012 2013 2014
Ex
ab
yte
s/m
o
Tri
llio
ns
14.7EB/mo
Global IP Traffic GrowthIP traffic will increase 4.3 fold from 2009–2014In 2014, global IP traffic will reach 3/4 of a zettabyte
34% CAGR 2009–2014
63.9
EB/mo
© 2010 Cisco Systems, Inc. All rights reserved. 4
Source: Cisco Visual Networking Index (VNI) Global Forecast, 2009–2014
Global IP Traffic
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 5
Global Consumer Internet Traffic GrowthVideo replaces P2P as top traffic type in 2010
0
5
10
15
20
25
30
35
40
45
2009 2010 2011 2012 2013 2014
Ex
ab
yte
s/m
o
Online Gaming
Video Calling
VoIP
Web and Data
File Sharing
Internet-Video-to-TV
Internet Video
36% CAGR 2009–2014
46%
10%
27%
15%
© 2010 Cisco Systems, Inc. All rights reserved. 5
Source: Cisco Visual Networking Index (VNI) Global Forecast, 2009–2014
* VoIP, Online Gaming, and Video Calling contribute 1% or less in 2014.
Global Consumer Internet
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 6
Cisco on Cisco Case Study
Video Demands on the Network
“YouTube” at Cisco: Show and Share Collaborative Workspace: Webex at Cisco
TelePresence at Cisco Cisco IT Global Backbone Capacity
0
2,000
4,000
6,000
0
15000
30000
45000
Files
Jan „08 Nov „08
40KUsers
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
28xUser
Growth Rate
91xData
Growth Rate
0
100,000
200,000
300,000
Q4FY07 Q1FY08 Q2FY08 Q3FY08 Q4FY08 Q1FY09 Q2FY09
19xFiles Uploaded
5xNumber of Meetings
0
15000
30000
1996 1997 1998 2002 2006 2007 2008
400%
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 7
Video Application CharacteristicsDiverse Needs and Opportunities Across Applications
Application Model Flow Direction Traffic Trends
Str
ea
min
g
Video Surveillance Many to Few Source -> Recorder
Recorder-> Client
• Higher quality video
requirements driving higher
network bandwidth needs (3-
4 Mbps per camera)
Viewing Stored
Video /
Live Video
Few to Many Origin -> Client
Cache -> Client
• Non-linear nature negates
• HD quality becoming baseline
• Efficient live transmission
requires network or
application multicast
Inte
rac
tive
TelePresence
Collaboration
Many to Many Client <-> Client
MCU <-> Client
• HD Video runs 4-15 Mbps per
location
• Increasing user base beyond
just conference rooms
Desktop
Collaboration
Many to Many Client <-> Client
MCU <-> Client
• Ad-hoc peer to peer
connections
• Quickly turning to HD quality
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 8
Business VideoIncreasing demands on the network = need for intelligent network
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32 to 209
times
the
bandwidth
Common RequirementsWe Have Lots of Bandwidth… Really?
Transitioning to Video
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Borderless NetworksArchitecture for Agile Delivery of the Borderless Experience
Infrastructure
Borderless End-Point/User Services
Mobility WorkplaceExperience
Video
Securely, Reliably, Seamlessly: AnyConnect
Borderless Network Services
Security:TrustSec
Application Performance: App Velocity
Mobility:Motion
Green:EnergyWise
Borderless Management
and Policy
Video:Medianet
Switching
Wireless
WAAS
Routing
Security
PROFESSIONAL SERVICES: Realize the Value of Borderless Networks Faster
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 11
CEO Meeting
Medianet: Transform Voice and Video Experiences
Can My Network deliver these Real-Time Collaboration Experiences?
Business Meetings
Sports Event
CEO Meeting
BusinessMeetings
Sports Event
Global Business, Worldwide Offices
Context-Aware, Prioritized, High-Quality Voice and Video
No Resource Reservation, Degraded Voice and Video
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 12
So what is Medianet?
Medianet is an End to End Architecture for a media-optimized Network . Medianet allow the deployment, scalability and optimization of quality of experience of Rich Media Solutions into the organization.
Network Aware : Simplifies deployment and Administration. Detect and respond to changes in
devices, connnecton, and service availability
Endpoint aware : Simplifies deployment. Automatic Detection and Configuration of endpoints.
Media Aware : Deliver the best experience. Detection and Optimization of different media and
application .
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 13
8 How to keep my network constantly optimized
for video applications ?
Points to consider when deploying and using media-rich Video solutions
How to reduce installation costs ?1
How to increase flexibility without loosing track of device location ?2
Is my network ready for the deployment of XYZ ?3
How do I make sure hi-priority sessions have the
best Quality of Experience ?6
How can I scale video deployment?7
4 How can I be sure that the upcoming event will be OK ?
5 What if i need to understand why and where video
quality issues occurred?
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 14
How to reduce installation costs ?
Today to deploy and operate video applications is expensive: manual intervention, skills required, etc…
Medianet can streamline certain deployment processes of video end-points by enabling the network to automatically recognize, configure, and provision the devices.
1
Minimize deployment time and
Configuration processes through
automation and lowering the need for
expertise.
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Complexity increases the likelihood for loss of equipment, mis-configuration of devices, and security issues.
Medianet provides location information as well as a baseline security level, allowing equipment to be easily moved across the network.
How to increase flexibility without loosing
track of device location ?
2
Keep track of device location and exploit a
whole new level of flexibility
Click here
for more
detail
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 16
Medianet 2.1 – Auto-configurationSimplify deployment
Three Major Components of Auto-configuration:
• Device Announcement via CDP or Mac Range
• Auto Smartports for device detection and Specific Macro
application
• Location Information. Setting up and sending location using
IOS based feature and propagated it to the endpoint.
Access Switch can Auto-configure those parameters
using Auto Smartportsbased on CDP or Mac range.
Endpoint can provide information to the Network using
MSI (Medianet Service Interface).
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IP Surveillance
Manager
Digital Media Manager
Auto Smartports
Network Event Detected : Camera/DMP connected
Switch provides civic & geo location info to endpoint – CDP: location = bldg 24/room 5
Camera/DMP with MSI: send ‘device type’ = ‘Camera’ via CDP or Mac Range
CiscoWorks
LMS
How many IP cameras do I have installed in Bldg 24
Release 2.1 – AutoconfigurationSimplify deployment
Automated configuration and deployment reduce cost of
deployment and ongoing moves, adds and changes
Macro Autoconfiguration-VLAN- QoS- Port Security- Location
WAN
Camera/DMP registers it’s location info with its manager
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 18
Is my network ready for the deploymentof… ?
There is currently no method for realistically assess what will happen at the moment of deployment, even thought guidelines and predictions can help.
With Medianet an operator can simulate real video application traffic and assure the network is ready for what is being planned for implementation.
3
Ensure the content/media can delivered
with the expected quality of experience to
your users.
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How can I be sure that an upcoming broadcast will be OK ?
Estimations can provide a good starting point, however currently there is no mean of precisely predict what would happen at the moment of an event and take corrective actions right away.
Medianet allows an operator to proactively assess and simulate a network test for its ability to handle specific events.
Medianet lets you simulate events before
they ocurr, leaving enough time to fine
tune if necessary.
4
Click here
for more
detail
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IP SLA Video Operation (VO)Embedded Traffic Simulator
IPSLA known in industry for jitter, ICMP, etc. probes
Most probes measure experience without affecting user traffic (hopefully)
Need traffic to stress test network
IPSLA VO provides
Realistic representation of arbitrary video (RTP) traffic
Packet sizes, burstiness, traffic rate, etc.
pre-packaged profiles:
IPTV, Video Surv, CTS
Extensible via data file
Custom profile generation from packet capture
XX
Coming 1H‟2011
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 21
IPSLA Video Operation
Is my network
ready for 100 HD
Desktop Cameras,
30 IPVSC and a
new Telepresence
room?
Switch A
Router BRouter C
Switch D
• Convenient for pre-deployment assessment, pre-event testing and post-event troubleshooting.
• More bandwidth needed? Deploy PfR?
• QoS needed?
• Fully integrated with IPSLA control and scheduling framework
• Extension to current IPSLA CLI and MIB interface to allow easy integration with NMS products
• Traffic is RTP: can use mediatrace and performance-monitor to do fault-isolation
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 22
How do I understand why and where video quality issues occurred?
Today Post Assessment of video quality issue is very difficult. Manual Process - Difficult to identify/retrieve accurate information - No global end to end view.
By taking into account end to end information, video monitoring in Medianet is able to detect what the issue is and where is it occurring. Details will be reported into a monitoring dashboard, simplifying the process of troubleshooting.
Target accelerating error detection for faster
problem resolution.
5
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 23
Dynamic Monitoring with Mediatrace
Mediatrace discovers and queries L2 and L3 nodes along a flow‟s path
Gathers system resource, interface and flow specific (perf-mon) stats
For performance monitor: dynamically configures monitoring policy (if needed) 5-tuple + intervals etc. match static policy).
Consolidates information into a single screen
Allows for easy comparisons of device behavior
Which interface dropping packets?
Where is DSCP getting reset?
Can be requested by remote device
Automatically (based on thresholds) via EEM script
Built into MSI applications, operator or automatic triggering
Let mediatrace do the walking for you!
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Mediatrace Components
Requestor – origin of request
Video end system, NMS, same node as initiator, remote router/switch
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 + requestor
responder responder
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Preconfigured mediatracesession- perf-mon profile
Performance-monitor policy automatically configured (if needed) along path, then flow data collected
Fixed field-sets for RTP and TCP flow analysis
Mediatrace Performance Monitor Session Example Output
10.10.130.2:100010.10.132.2:2000
10.10.12.2
initiator#show mediatrace session stats 1Session Index: 1…
Mediatrace Hop Number: 2 (host=responder2, ttl=253)Metrics Collection Status: SuccessReachability Address: 10.10.34.3Ingress Interface: Gi0/1Egress Interface: Gi0/2Metrics Collected:Flow Sampling Start Timestamp: 23:45:56Loss of measurement confidence: FALSE Media Stop Event Occurred: FALSE IP Packet Drop Count (pkts): 0 IP Byte Count (Bytes): 6240 IP Packet Count (pkts): 60 IP Byte Rate (Bps): 208 Packet Drop Reason: 0 IP DSCP: 0 IP TTL: 57 IP Protocol: 17 Media Byte Rate Average (Bps): 168 Media Byte Count (Bytes): 5040 Media Packet Count (pkts): 60 RTP Interarrival Jitter Average (usec): 3911 RTP Packets Lost (pkts): 0 RTP Packets Expected (pkts): 60 RTP Packet Lost Event Count: 0 RTP Loss Percent (%): 0.00
Note: Data omitted for better readability.
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 26
How do I assure hi-priority sessions have the best Quality of Experience among all type of video streams ?
Today providing a global and flexible QoE is difficult, as most video applications are not network aware (and vice versa)
Medianet capable network:
Classifies the important video communication streams
Allocates network resources and priorities in a granular manner
6
Enhance Quality of Experience by providing
global, better and accurate resource/quality
allocation
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 27
Latency Jitter Loss Live Bandwidth
< 1000ms < 100ms < .05%
< 150ms < 30ms <.1%
200Kb - 1.5Mb
< 150ms < 10ms <.05%
< 1000ms < 100ms < .0%
< 1000ms < 100ms < .0%
< 1000ms < 100ms < .05%
Quality of ServiceDestroyers of Media Quality & video needs continue to grow
768Kb - 5Mb
1.5Mb - 24Mb
SD 1.5Mb -5Mb
HD 5Mb – 8Mb
SD 1.5Mb -5Mb
HD 8Mb – 15Mb
256Kb - 8Mb
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 28
QoS – How Many Classes? (RFC 4594-Based)Business Requirements Will Evolve and Expand over Time
Time
Critical Data
Realtime
4-Class Model
Best Effort
Signaling / Control Call Signaling
Critical Data
Interactive Video
Voice
8-Class Model
Scavenger
Best Effort
Streaming Video
Network Control
Network Management
Realtime Interactive
Transactional Data
Multimedia Conferencing
Voice
12-Class Model
Bulk Data
Scavenger
Best Effort
Multimedia Streaming
Network Control
Broadcast Video
Call Signaling
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 29
How can I scale video deployment?
Maximizing network resources usage without compromising performance is highly difficult due to the specific requirements of video traffic and requires a lot of network design effort.
Medianet can leverage technology that attempts to utilize all possible paths on the network and combine that with advanced resource reservation and admission control.
7
Reduce over-provisioning strategies to scale
video deployment. Make the best of your existing
network.
Click here
for more
detail
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IntroductionNetwork Traffic vs. Network Capacity
Network
Capacity
Network
Traffic
Over-provisioning
Adjust network capacity
to accommodate peak
traffic
Congestion Control
Adapt elastic traffic flows
to their share of network
capacity
Admission Control
Reject traffic flows that
exceed network capacity
or violate policy
OK to “squeeze” Data traffic Not OK to “squeeze” Voice &
Video traffic; they’re inelastic
May not always possible
to over-provision
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 31
Medianet - Resource Reservation and Control
MPLS
Camera requests 2Mbps bandwidth
Predictable and controlled QoE in the event of resource contention
Service reservation indicative of dynamic application session requirements
Event detected, camera requests additional 1Mbps bandwidth
Internet
Intelligent use of links based on capacity & bandwidth is not the only metric
Sanctioned applications given preference
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 32
How can an operator maintain that the network is constantly optimized for video applications ?
Before medianet, the network was neither media nor application aware.
The goal of Medianet is to identify what are the requirements of each video session/application, allowing the operator to decide how to optimize media end-to-end
8
An endpoint, media and network aware
architecture will allow custom business
policies to be applied and also aids as where
to invest for optimization.
Click here
for more
detail
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Explicit description of video application stream
“Interactive video application requires low packet-loss, low latency”
Medianet - Metadata
I see TP traffic, forward to
MPLS cloud
AppID = TelePresence
Internet
MPLS
I see TP traffic, mark High
priority
I see TP traffic, export NetFlow record to NMS
Deep Packet Inspection capabilities not available to all platforms, Metadata solve this.
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 34
ToS SourceIP Addr
DestIP Addr
SrcPort Sub-Port/Deep Inspection
DstPort
Protocol
TCP/UDP Packet Data AreaIP Packet
NBAR: Full-Packet Inspection
Used for intelligent policy (QoS, filtering, etc) or reporting
Identifies over 90 applications and protocols TCP and UDP port numbers
Statically assigned
Dynamically assigned during connection establishment
Non-TCP and non-UDP IP protocols
Data packet inspection for matching values
Stateful and Dynamic Inspection
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 35
Medianet in a nutshell
Medianet is an end to end architecture for a media-optimized Network. It allows to deploy, scale and optimize Rich Media Solutions quality of experience within the organization.
Network Aware: Easy to deploy and administrate. Detect and respond to changes in devices, connnecton and service availability
Endpoint aware: Easy deployment. Automatic detection and donfiguration of endpoints.
Media Aware: Deliver the best experience. Detection and Optimization of different media and application .
auto
config
video
monitoring
resource
controlmetadata
Medianet services
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 36
Enterprise Medianet – Architectures and Innovation
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Medianet FrameworkArchitecture Focused
Single TierBranch
Campus
SiSiSiSi
Dual Tier Branch
WAN
Edge
Teleworker
Wireless Access
Data Center
WAN
B2B
Internet
EdgeInternet
IP, MPLS, FR, etc.
High Availability
Latency and Bandwidth Optimization
Real-Time Application Delivery
Network Virtualization
Confidentiality
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 38
Video-Ready Campus ArchitectureSecuring “Private” Video Apps with Network Virtualization
Distinct VLANS assigned for
targeted applications (Access)
VRF-lite on all routed hops (Core
and Distribution
“Green” VRF for general corporate
user population
“Yellow” VRF for video applications
with very restricted access:
IP Video Surveillance
Digital Signage
Executive-level Conferencing
Traffic is isolated end-to-end
across the network
Can apply to WAN, MAN, Data
Center as well
SurveillanceL
ayer 3
L2
L2
General
User“Green”
VRF
“Yellow”
VRF
General
UserSurveillance
Surveillance
Manager App
WAN/MAN
Data Center
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 39
Cisco Innovations Leveraged for Video Deployments
Performance based Routing (PfR) and IP SLA
Video Monitoring Initiative
Core IP/MPLS Innovations and Focus Areas
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 40
What Is Performance Based Routing (PfR)?
Real-time Route Selection
Based on performance delay, loss, jitter, unreachable, mos, load and $cost
Embedded completely in Cisco IOS®
Has passive learning and monitoring component
Useful for baselining
Already uses IPSLA, NetFlow, NBAR on backend
Name change: OERPfR
IOS CLI will eventually migrate, accept both
In this presentation PfR term is used
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 41
IP SLAs Key Measurements
Measurements
Continuous and reliable: Providing a statistical end-to-end matrix of performance information
Jitter, packet loss latency, voice quality scores (MOS)
Per direction source to destination or destination to source
Per class of service to verify QOS for data, voice, and video
Latency to web servers, DHCP servers, DNS response times, TCP response time
Hop by hop measurements including jitter
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 42
Best Path Selection per Prefix/Application/DSCP for Two or More Paths
Remote Office
WAN Access Links are Biggest End-to-End Bottleneck!
Shortest Path is not always the best path in terms of performance
Telecommuter
Headquarters
Bottlenecks!
SP A SP B SP C
SP D SP E
By Default BGP Chooses Best Path Based on Fewest As-Path Hops!
Optimize by:
Reachability, Delay, Loss, Jitter*,
MOS, Throughput, Load and/or $Cost
20 ms jitter
5 ms jitter
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 43
Video-Ready WAN ArchitecturePerformance Routing (PfR) and Fast ReRouting
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 44
Opportunity for Inline Video Monitoring
Inline Video Monitoring Offers Quality Measurements without pulling the video to external devices.
Attractive where CAPEX & OPEX is focus as video blades are not dedicated to video monitoring
Addresses Scaling of devices in a network
Complimentary to existingmonitoring investments
Inline
External
Monitoring
Methods
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 45
The VidMon Metrics
Transport IP UDP RTP FCSUDP Video Payload Content
(MPEG is not the only payload option)
Example Video Packet in over an IP Transport
Metric Applicability
Media Delivery Index (MDI) Measures MPEG2/4 Headers for Loss and Delay
Media Discontinuity Counter (MDC) Measures MPEG2/4 Headers for the number of times Loss was
detected.
Media Rate Variation (MRV) Measures IP/UDP Headers for Delivery Variations.
RTP Loss and Jitter Measures RTP Loss and Delay by examining the RTP header
Media Stop Event (MSE) Notification if a monitored flow stops receiving traffic
MPEG
Header
MPEG
Payload
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 46
Core Network Video/Multicast Transport Options
Native IP multicast
Is used for Distribution, Contribution and mVPN applications
Simple and Scalable, has been in use for many years
MPLS multicast (Label Switched Multicast)
Can be used for Distribution, Contribution, and mVPN applications
P2MP-TE: Targets contribution applications that require route pinning and CAC
mLDP: Suitable for MP2MP mVPN applications. Can be used with or without TE FRR.
Live/Live Network Design Focus
MoFRR (Multicast Only Fast Re-Route) - allows fast reroute for multicast traffic on a multicast router (targets <50ms convergence)
Sends PIM joins on two ECMP upstream interfaces towards the source over alternate paths in the network
Thereby receiving 2 copies of the mcast traffic on two different paths
Targets Large customers, owning their own backbone, and
functioning as SP’s within their organization
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 47
Management and Services
Cisco Works LMS 4.0:
Simplifies the configuration and management of endpoints
Medianet “plug-in” provides workflows for provisioning auto-configuration and location settings and tracking of medianet endpoints
Prepare network for DMP and IPVSC provisioning by running a readiness check for Auto Smartports and location configuration and builds workflows for configuring Auto Smartports and location attributes in your network.
More on LMS
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 48
Enterprise Medianet Roadmap Overview
Integrated, Seamless
Solution
Today
Medianet 1.0
Medianet the network foundation for video & collaboration
Medianet Readiness Assessment
Video over wireless
Medianet 2.1
Auto Configuration
Medianet 2.2
Video Monitoring (passive measurement & Mediatrace)
Resource Control
Application Support
Network Infrastructure
Support
2H CY10
DMS, Physical Security, LMS
Cat3k, Cat4kISR, ISR G2
1H CY11
DMS, Physical Security, Webex, TP
Cat3k, Cat4k, Cat6k, ISR, ISR G2, ASR1k
“Many of the products and features described herein remain in varying stages of development and will be
offered on a when-and-if-available basis. This roadmap is subject to change at the sole discretion of Cisco,
and Cisco will have no liability for delay in the delivery or failure to deliver any of the products or features set
forth in this document.”
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 49
For more information at a glance and in-depth, whitepapers, design guides, readiness assessments,
video demonstrations and much more please visit
http://cisco.com/go/medianet
© 2010 Cisco Systems, Inc. All rights reserved. Cisco Public 50