1© 2005 Cisco Systems, Inc. All rights reserved. Cisco PublicSal Pearce
How Big is Cisco? Technology and People…
• 300 locations in 90 countries
• 400 buildings
• 50 data centers and server rooms
• 1000+ labs world wide (500+ in San Jose)
• 50,000 Employees
• 18,000 Contractors
• 20,000 Channel Partners
• 110+ Application Service Providers
• 210+ Business and Support Development Partners
Over 150,000 People around the World in the Extended
Cisco Family
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Cisco Runs Its Business on a Cisco Infrastructure
>300 x Content Engines
2923 x Switches
120 x MDS 9000 Multilayer Directors
47,000 x Cisco Security Agents
24,500 x IP Communicator/ Softphones
66,000 x IP Telephones
3100 x Access Points
2136 x Routers
2510 x Voice and Remote Gateways
46,200 Unity Users
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The real world – Cisco IT case study
333
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History—Introduce IP Telephony Fall ’98Pilot at Cisco San Jose Campus
CM 2.2
5-12345-7809
CallManager 2.2200 voluntary users having
2 phones at the desk
T1 Gateway
PBXLucent Definity G3r
PBXDCS Link
Octel VMOctel VMOctel VM
OctelNet to CiscoRemote Sites
OctelNet
PSTN
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PBXPBX
DCS Link
Octel VM853 NXX
Octel VMOctel VMOctel VM526 NXX 527 NXX 525 NXX
OctelNet to CiscoRemote SitesOctelNet
PSTN
• Initially with CCM 2.4 andCisco SP-12 and VIP-30 IP Phones (directly fromSelsius acqusition)
• This identified some user-related issues (AC powersupplies problems, „toowarm” handsets ☺ )
• ... as well as someunexpected network issues(QoS in the LAN, IP addressing requires properdesign using RFC 1918)
• Later with CCM 3.0 - bettervoice quality with Cisco IP 7960 phone and properQoS allowed this phase to finish successfully
• Lessons learned: QoS inthe LAN and in-line poweris a must !
CallManager 2.4
2500 Userswith IP phone only
SMDI
Telephony View of Cisco Campus in 1999 First Large-Scale Production Cluster Coexisting with PBXes
Prefix 853
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Telephony View of Cisco Campus in 2000PBX Phaseout completed – All users moved to Pure IPT:~ 24 000 IP Phones in 5 CCM clusters
SMDI Link
526 Cluster
527 Cluster 525 Cluster
853 Cluster
902
902 Cluster
OctelNet
OctelNet to CiscoRemote Sites
Octel VM
PSTN
IP LAN/MAN
Octel VM Octel VM Octel VM Octel VM
853 526 527 525
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San Jose Campus in SuperCluster since 2003Today: >26 000 phones, CCM 4.1, Unity 4.0
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Cisco Field Offices in EMEABefore the migration to Cisco IPT...
• Typically 50 - 200 employeesSome Core offices with 1500+ users
Flash-Cut Approach becomes viable option !
• Voice architecture in Cisco EMEA before migration: Avaya Definity PBXs (also few Nortel in other theatres)with 28 Centralized Octel Voice Mail Systems
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CallManager
CallManager-Based Network
Deployment in Cisco Field Offices in EMEAFlash Cut PBX Approach with DPA for Octel VM
Octel Legacy VM
Octel Legacy VM
Digital PIC
Legacy PBX
24 PIC Interfaces
Skinny
DPA
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Deployment in Cisco Field Offices in EMEAMobile Rack Solution
• Portable, easy to install
• WAN/LAN connectivity
• File/Print/DHCP Server
• UPS
• Complete IP Telephony environment
• Minimum onsite involvement
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Why CCP = Centralized Call Processing ?
• After migration to IP NGN – MPLS VPN from C&W (SLA on Bandwith, Latency, Jitter) we could finally do that !
• Extension Mobility within Cisco EMEA region (mobile workers in Europe/MiddleEast/SouthAfrica)
• Cost savings through internal VoIP (not only for user-to-userintenal calls, but primarily for conference calls and accessingvarious internal helpdesks, located primarily in Amsterdam, London and Brussels)
• Cost savings through international hop-off
• XML Applications for all sites (single core-instance)
• Lower TCO, Improve Manageability (global support)
• Our rollout not how customers would do it so far …
• After migration to IP NGN – MPLS VPN from C&W (SLA on Bandwith, Latency, Jitter) we could finally do that !
• Extension Mobility within Cisco EMEA region (mobile workers in Europe/MiddleEast/SouthAfrica)
• Cost savings through internal VoIP (not only for user-to-userintenal calls, but primarily for conference calls and accessingvarious internal helpdesks, located primarily in Amsterdam, London and Brussels)
• Cost savings through international hop-off
• XML Applications for all sites (single core-instance)
• Lower TCO, Improve Manageability (global support)
• Our rollout not how customers would do it so far …
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MPLS-VPN
SRST
‘Exception sites’
PESatellite/Hub
(No Local PE)
Hub Site (Local PE)
DC DC
CCM Cluster(s)distributed over the WAN
Dual TDM
Cisco EMEA Centralized Call Processing
SRST
AmsterdamLondon
Warsaw
Frankfurte.g. Dubai, Johannesburg
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CCP – Example of Cost Reduction:Capital Expenditure & OS Maintenance
• Capital Expenditure (Example – Cisco EMEA)60 Offices: 11 Servers only vs. ~100 servers in pre-CCP !!!
• Saving in headcount:Assumption: on average 1hr/month/server for pro-active OS patching/upgrade is required
Pre-CCP: 50 sites x 2 servers x 1 x 12 months = 1440 man hours = ~ 0.66 year SysAdmin HC
Post-CCP: 11 servers x 1 x 12 months = 132 man hours = 0.06 year SysAdmin HC
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Cisco EMEA Centralized Call ProcessingCurrently serving >9000 users in ~100 locations
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SJC
Johannesburg
TokyoRichardson
RTP
Sydney
Singapore
Storage Area Network
AD Directory Controller
Cisco Unity
E2K Cluster
CCP Central Site
Hong Kong
AmsterdamLondon
India
Dubai
37XX RoutersCatalyst switch
CCP Local Site
Cisco Unity
E2KServer
Call ManagerCall Manager
37XX Routers
Catalyst switch
Boxborough
EURO CCP
ME CCP
SA CCP
CCP is now the Global Architecture for Cisco’s own IP Telephony System
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Executive Summary
• Reduced 262 PBXs to 13 IP Centralized Call Manager Clusters
• Removed lease costs of PBXs: $1.5 Million / year in San Jose
• Removed contracted maintenance costs of PBXs: $2.2 Million / year in San Jose, $4M/year total in all the Americas
• Worldwide Central Voice Management in place• Converted 18,000 Voice Mail users across US in
one weekend• Added worldwide voice mobility
In the office, at home, and on the road• MeetingPlace and Cisco Video Telephony
Advantage rolling out now
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IP Communications
• Centralized call processing with distributed CallManager Cluster – 2 x MCS-7825, one CM at Central Office and one in DR Site
• All locations covered with IPT, more than 600 IP Phones mainly 7912 , 7940 & 7960 for managers and 7936 in conference rooms
• CM at Central Office roles: primary server for call processing, subscriber CM server, Music on Hold streaming server and Conference Bridge server
• CM at DR Site roles: publisher CM, secondary server for call processing and TFTP server
• Voice Gateways have 2 x ISDN PRI in central sites and regional offices and ISDN BRI in branches for connection to PSTN
• No analog phones and no traditional PBX`s !
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IP Communications• SRST in remote locations• Intercluster CallManager Trunks with CallManager Clusters in
Bulgaria and Greece• Complex, but functional dial plan enables the users to identify
the branch of the calling number and the position of the person in the branch
• For incoming calls, some dialed ISDN numbers are directly answered by Branch and Platform Managers. For Accounts and Tellers there are Hunt group numbers configured on the CM that directly distribute the call to the first active employee
• QoS mechanisms - Low Latency Queuing, RTP header compression and Link Fragmentation with Interleaving
• Call Admission Control to control number of calls that can be established over WAN link
• CiscoWorks QoS Policy Manager
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IP Communications – next steps
• New 20 branches by the end of the year
• IPCC Express with database dips and voice recording
• ERS Euroline Retail Services network connecting to EFG network – Avaya out , Cisco in with new 180 IP Phones
• Acquisition of Nacionalna Štedionica banka with 68 branch officess – plan to integrate this network to EFG Eurobank network with IPC as well !
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Network and IPC
• Central Office, Brewery and Mega Market in Novi Sad: 2 x redundant Catalyst 4507R switches in core, 3550-24 PWR switches in access; 2 x MCS-7825 CallManager servers, 2 x 3725 VG each with ISDN PRI to PSTN
• More than 500 IP Phones: 7970, 7960, 7940, 7912 and 7902
• 3725 Router for aggregation
• WLAN network with AP1200
• WLAN clients : IP phones 7920, PDAs, Laptops
• Remote Sites with
1760 SRST routers
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Pictures from Rodic Mega Market
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IP Communications
• IP Video Surveillance with 155+ Sony IP video cameras
• Sony RealShot Manager for IP VS• Integration with traditional PBXs• IP GSM Gateway• Billing XML application• V3PN on WAN• Cisco IPT integration with
Video Surveillance System
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Cisco IPT integration with Video Surveillance System
RFID Signal Sony RSM
XML SoftKey Pressed
RSM/CCM HTTP API
XML Push2Phone
Open
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MK Commerce- Cisco IPT
Wireless IP phone
2x ISDN PRI
Router 1760
NokiaGSM Gateway
Aironet 1200
CallManagerCluster
PSTN
Wireless WAN
PSTN
Internet
Home office
VPN
5 udaljenihlokacija
VPN
Office u inostranstvu
VPDN korisnikIP Softphone
3524-PWR Stack
PIX 515E
Router 2621
3550-24 EMI
VG200
VG200
Centralna lokacija