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@MOURCOUS
MARC NADER
CCIE #9364
SMALL CELLS & CARRIER WIFI
ARCHITECTURES
AGENDA
• Need for SP Wi-Fi
• Intelligent Service Gateway (ISG)
• ISG Call flows
• SP Wi-Fi Evolution with MPC Integration
...
NEED FOR SP WI-FI
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
Users Want
more data
Mobile data traffic growth
Mobile broadband subscriptions
up
Metro densification
More devices, more W...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
Wi-Fi is part of that performance
experience
How?
IN CITY centers
And High Traffic Venues
In Offices
And Special events
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
INTELLIGENT SERVICE
GATEWAY (ISG)
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
ISG CALL FLOWS
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
SP WI-FI DEPLOYMENTS
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
SP WI-FI EVOLUTION WITH MPC
INTEGRATION
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
IWAG – INTELLIGENT WIRELESS
ACCESS GATEWAY
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
IWAG CALL FLOW AND
CONFIGURATION
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
© Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduc...
THANK YOU
Marc Nader
@mourcous
www.linkedin.com/in/marcnader
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Carrier WiFi Architectures

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Carrier WiFi Architecture presentation delivered during the 1st Cisco Student Network Day - CSND'14 at the Antonine University in Lebanon in collaboration with Cisco Networking Academy on Tuesday May 24th 2014.

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Carrier WiFi Architectures

  1. 1. @MOURCOUS MARC NADER CCIE #9364 SMALL CELLS & CARRIER WIFI ARCHITECTURES
  2. 2. AGENDA • Need for SP Wi-Fi • Intelligent Service Gateway (ISG) • ISG Call flows • SP Wi-Fi Evolution with MPC Integration • Intelligent Wireless Access Gateway (iWAG) • NTT Residential SP Wi-Fi challenges • References
  3. 3. NEED FOR SP WI-FI
  4. 4. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 4 ‘Small cells’ is an umbrella term for operator-controlled, low-powered radio access nodes, including those that operate in licensed spectrum and unlicensed carrier- grade Wi-Fi. Small cells typically have a range from 10 meters to several hundred meters. WHAT IS A SMALL CELL?
  5. 5. Users Want more data Mobile data traffic growth Mobile broadband subscriptions up Metro densification More devices, more Wi-Fi capable devices and more Wi-Fi usage on Wi-Fi capable devices (Wi-Fi devices doubling). Source: Mobidia (2013) Aug 2012 Apr 2013 33% 27% 67% 73% Cellular Wi-Fi
  6. 6. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 6
  7. 7. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 7 BACKGROUND: WI-FI TRENDS Increasing portion of total network access on Wi-Fi
  8. 8. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 8 Explosion in Mobile Devices(Wi-Fi enabled) NEED FOR SP WI-FI SP Wi-Fi 39x Surge in Mobile Data, Apps! Big Shift to Indoor Consumption - Lack of 3G / 4G Spectrum - Limited BW - Attractive Economics of Offload - Unlicensed Wi-Fi Spectrum
  9. 9. Wi-Fi is part of that performance experience How?
  10. 10. IN CITY centers
  11. 11. And High Traffic Venues
  12. 12. In Offices
  13. 13. And Special events
  14. 14. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 14 WI-FI IS INTEGRATED INTO THE MBB OFFERING Technology visualization WiFi performance not guaranteed Cumbersome to monetize Carrier WiFi Performance & business visualization Carrier WiFi performance guaranteed Monetize Carrier WiFi (part of data bucket) 2G 3G 4G Carrier & Public WiFi Mobile Broadband Public WiFi Performance indicator Operator controlled access (2G/3G/4G/WiFi) Today Vision Coverage & Access technology
  15. 15. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 15 NEED FOR SP WIFI [CONTD…] DIFFERENT MOTIVATIONS Mobile Operator 1 Mobile Operator 2 Wireline Operator with Wi-Fi Access Mobile Users Mobile Operators Wireline Operator 1 Wireline Operator 2 Mobile Operator Motivations • Data traffic growing exponentially • Licensed spectrum limitations Wireline/Wi-Fi Operator Motivation • Increase Service Revenues • Cater to multiple Mobile Operators • Leverage existing infrastructure Subscriber Motivation • Always connected experience • Seamless Authentication • Mobility/Roaming without disrupting apps 3G/4G delivered via Mobile Backhaul Wi-Fi Access Gateway Peering
  16. 16. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 16 TERMINOLOGY BASICS Service Provider Wi-Fi Wireline Broadband User type Mobile Users Fixed Residential Session Type IP Based Sessions PPP Based Sessions Session Control Intelligent Services Gateway (ISG) – software component Place in Network (PIN) Designation Wireless Access Gateway (WAG) Broadband Network Gateway (BNG)
  17. 17. INTELLIGENT SERVICE GATEWAY (ISG)
  18. 18. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 18 Policy Server CISCO INTELLIGENT SERVICES GATEWAY (ISG) IS A LICENSED FEATURE SET ON CISCO IOS THAT PROVIDES SESSION MANAGEMENT AND POLICY MANAGEMENT SERVICES TO A VARIETY OF ACCESS NETWORKS WHAT IS ISG? Subscriber Identity Management Policy Management and Enforcement DHCP Server …AAA Server ISG Web Portal Open Northbound Interfaces Subscriber Policy Layer So focal, that the entire device is often referred as an: Intelligent Services Gateway router or simply “The ISG”ISG
  19. 19. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 19 Open GardenWalled Garden ACCESS TECHNOLOGY ABSTRACTION ATM/Ethernet Switch DSL 802.11 or 802.16 Access Distribution Ethernet CMTS Cable  Subscriber-centric services regardless of: Access Technology Access Protocol  Access Technology: Legacy DSL/ATM Metro Ethernet, Wireless LAN, Cable  Access Protocol: IP PPP DSLAM BRAS/BNG
  20. 20. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 20 THE NEW USER EXPERIENCE ENABLING THE NEXT WAVE OF BROADBAND Add Subscribers Pay As You Go! Buy credit Pay What You Use! Buy Broadband “Value” Buy: $29.99 Broadband “Premium” Buy: $49.99 Broadband “Ultra” Buy: $69.99 “Double Play” Internet + TV or Voice ($74.99) Add Value Add Services Register Log in “Triple Play” Internet + TV + Video ($99.99)
  21. 21. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 21 Multi-Dimensional Identifier for Subscribers over L2/L3 access networks:  From multiple sources and events  Over session lifecycle  L2 – Pt-to-Pt vis-à-vis L3 – Pt-to-Cloud Services and Rules updated based on :  How subscriber behaves  What the subscriber requires NOW Different Services and Rules applied based on:  Who the subscriber is  Location of the subscriber  Requirement of the subscriber SUBSCRIBER AWARENESS - ELEMENTS OF CUSTOMIZATION Initiators & Identity Session Services Dynamic Service Management Intelligent Service Gateway Session authentication Dynamic Policy Push and Pull Session initiation
  22. 22. ISG CALL FLOWS
  23. 23. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 23 IP Packet Session-start event posted 2 BNG session creation 3 PBHK service applied (*) 4a Access-Request username = mac 4bAccess-Reject 5 OpenGarden and L4R services applied (*) 2 6 Authentication Timer started (*) assumes that the definition of PBHK, L4R and OpenGarden are already available on the BNG class type control always event session-start 10 service-policy type service name PBHK_SRV 20 authorize aaa list IP_AUTHOR_LIST password cisco123 identifier mac-addr 30 service-policy type service name OG_SRV 40 service-policy type service name L4R_SRV 50 set-timer AUTHEN_TMR 10 2 3 4a 5 6 interface GigabitEthernet 0/0.1 encapsulation dot1Q 10 ip address ... service-policy type control IP_SESSION_RULE1 ip subscriber l2-connected initiator unclassified-mac policy-map type control IP_SESSION_RULE1 <snip> 2 Client obtains IP address independent of the ISG 1
  24. 24. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 24 http://www.cisco.com 7 L4Redirect to Portal 8 HTTP Redirect. User self-registers9 CoA Req. Account Logon username, password 11bAccess-Accept service: BASIC_HSI_SRV Access-Request username, password Account- Logon event posted Service-start event posted 11a 12bAccess-Accept BASIC_HSI_SRV definition Access-Request BASIC_HSI_SRV, srvpwd 12a 13 BASIC_HSI_SRV is applied 15 L4R and OpenGarden services are unapplied 10a CoA Ack. Account Logon http://www.cisco.com16 10c 11a 15 14Accounting-Request (Start) and Response Simplified call flow 10b 10b 11c aaa author subscriber-service default SERVER_GRP1 subscriber service password servicecisco class type control always event account-logon 10 authenticate aaa list IP_AUTHEN_LIST 20 service-policy type service unapply name L4R_SRV 30 service-policy type service unapply name OG_SRV ! class type control BASIC_HSI_SRV_CM event service-start 10 service-policy type service identifier service- name Service-Name: “BASIC_HSI_SRV” Service-Password: “servicecisco” Attr 28: idle-timeout = 600 AVPair: “subscriber:accounting-list= IP_ACCNT_LIST” ServiceInfo: QU;256000;D;768000; 12a 12b 11c
  25. 25. SP WI-FI DEPLOYMENTS
  26. 26. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 26 SP WI-FI ACCESS + AGGREGATION + CORE NETWORK – METRO WI-FI / HOT SPOTS Open/Walled Garden Internet/Core Video Audio Servers AAA Server Policy Server Web Portal DHCP Server Subscriber Policy Layer Controller Access Unified Architecture Radio Intelligence Access Aggregation Seamless Experience Access Network SP
  27. 27. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 27 ARCHITECTURE OVERVIEW AZR Internet Open Garden Services ITP SS7 Network HLR Proxy Access Zone Router (AZR)Open no-WEP Web Authentication EAP Client Open no-WEP Web Authentication AAA, Portal, Billing Corporate VPN MPLS / IP DHCP ServerIOS AP EAP Client IP HLR /AuC ASR1K Client Smartphone user PC/Laptop user Access Network AZR assigns IP. Client--ISG L3 network. Service Web authentication for Unclassified IP session. RADIUS Proxy session with accounting from AZR.
  28. 28. SP WI-FI EVOLUTION WITH MPC INTEGRATION
  29. 29. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 29 SP WI-FI ACCESS + AGGREGATION + CORE NETWORK Open/Walled Garden Internet/Core Video Audio Servers AAA Server Policy Server Web Portal DHCP Server Subscriber Policy Layer Controller Access Unified Architecture Radio Intelligence Access Aggregation Seamless Experience Access Network SP ISG
  30. 30. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 30 SP WI-FI ACCESS + AGGREGATION + CORE NETWORK + MPC INTEGRATION Open/Walled Garden Internet/Core Video Audio Servers AAA Server Policy Server Web Portal DHCP Server Subscriber Policy Layer Controller Access Unified Architecture Radio Intelligence Access Aggregation Seamless Experience Access Network SP HLR/HSS Policy Server Web Portal DHCP Server Subscriber Policy Layer Mobile Packet Core Converged Core Mobile Network Operator iWAG MPC
  31. 31. IWAG – INTELLIGENT WIRELESS ACCESS GATEWAY
  32. 32. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 32  SIMPLE IP USERS DO NOT RECEIVE A MOBILITY SERVICE (EITHER GTP OR PMIPV6)  SUBSCRIBER SESSION IS ANCHORED AND MAINTAINED ON IWAG  IP ADDRESS FOR THE SUBSCRIBERS ARE ALLOCATED EITHER VIA EXTERNAL DHCP SERVER OR VIA IWAG ITSELF  SUBSCRIBERS ARE NOT EXPECTED TO HAVE IP PERSISTENCY WHILE ROAMING  SUBSCRIBER AUTHENTICATION IS TYPICALLY PERFORMED USING WEB-AUTHENTICATION OR/AND TRANSPARENT AUTO- LOGON  SUBSCRIBERS USING MOBILITY SERVICES (EITHER GTP OR PMIPV6)  SUBSCRIBER SESSION IS ANCHORED ON THE MPC (PGW/GGSN) AND ALSO MAINTAINED ON IWAG  IP ADDRESS FOR THE SUBSCRIBERS ARE ALLOCATED FROM THE MPC, IWAG ACTS AS A PROXY DHCP SERVER  SUBSCRIBERS MAINTAIN IP ADDRESS PERSISTENCY WHILE ROAMING ACROSS WI-FI TO WI- FI OR WI-FI TO 3G/4G  SUBSCRIBER AUTHENTICATION IS TYPICALLY PERFORMED USING OUT-OF-BAND OR IN- BAND EAP-SIM/AKA MOBILE IP SUBSCRIBER SIMPLE IP SUBSCRIBER
  33. 33. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 33 WHAT IS IWAG? GPRS Tunneling Protocol (GTP) for integrating Wi-Fi traffic into Gateway GPRS Support Node (GGSN) ISG Features • IPoE Sessions: DHCP initiated, unclassified IP or MAC-address initiator, Radius-Proxy initiator • Layer-4 Redirect • Traffic Classes • Postpaid & Prepaid Accounting • Dynamic Rate Limiting • Lawful Intercept • Radius based authentication and accounting • Radius CoA Interface • Per-subscriber QoS • IP Session keep-alives, timeouts • VRF Transfer • Port Bundle Host Key (PBHK) • Walk-by session handling/optimization  Local Breakout of subscriber traffic for Simple IP subscribers  …..and more http://www.cisco.com/go/isg Mobile Access Gateway (MAG) using Proxy Mobile IPv6 (PMIPv6) for integrating Wi-Fi traffic into Packet Data Network Gateway (PGW) iWAG = Intelligent Wireless Access Gateway
  34. 34. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 34 ASR 1000 IWAG – IOS XE 3.8S 4G Core Internet Portal GGSN DHCP GTP PGW/LMA 3G Core L2 Connected AP WLC AP AAA Mobile Home Network Policy PCRFHLR OCS CGF Access Network Policy Gy Gx Ga Gn’ Features: • L2 Access & AAA Policy 1. EAP-SIM/AKA (via WLC) / FSOL – DHCP 2. EAP-SIM/AKA (via ISG) / FSOL – Radius Proxy 3. Web Logon /TAL. FSOL – Unclassified MAC • GGSN selection via DNS • Overlapping MNO address support with multiple SSID iWAG ASR1K Hotspot 2.0: Next-Generation Hotspot. Automated Login. IEEE 802.11u, WPA2-Enterprise, and EAP-based authentication. Wi-Fi Certified Passpoint ™
  35. 35. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 35 BY KEEPING KEY MOBILITY PARAMETERS CONSTANT THROUGHOUT THE WI-FI NETWORK/WLAN: A. MN’s IP address & anchor point B. MN’s Gateway IP address C. Gateway’s MAC (or Link-Layer address in IPv6) – RFC6543  TRACKING THE MOVEMENT OF MOBILE NODE – INTRA & INTER MAG MOVEMENTS  IN ADDITION, THE DHCP SERVER IS REACHABLE AND CONSISTENT THROUGHOUT THE WI-FI MOBILITY DOMAIN HOW PMIPV6 FACILITATES IP MOBILITY?
  36. 36. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 36 iWAG WLC LMA Wi-FiNetwork WLC WLC iWAG 802.11(x) CAPWAP PMIPv6L2 1 2 3 4 7 6 5 8 GxGy AAA/ Portal HLR OCS PCRF WLC AAA MN Traffic flow for Mobile IP subscriber AAA interactions CN – Server/Host Internet Walled Garden Content WI-FI AGGREGATION WITH STANDALONE LMA Traffic flow for Simple IP subscribers
  37. 37. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 37 WI-FI AGGREGATION WITH MULTIPLE MOBILE NETWORK OPERATOR (MNO)
  38. 38. IWAG CALL FLOW AND CONFIGURATION
  39. 39. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 39 SP WIFI-4G INTEGRATION ARCHITECTURE DEPLOYMENT MODEL 1 L2 Connected AP WLC AP Internet iWAG ASR1K AAA Mobile Home Network Policy PCRFHLR OCS CGF Access Network Policy EAP-SIM/AKA Authentication (out-of-band) FSOL: DHCP Discover Gy Gx Ga Model # Access Type Authentication FSOL Service IP 1 Layer 2 EAP-SIM/AKA (out- of- band) DHCP Discover PGW/LMA DHCP Service IP 4G Core PGW/LMA
  40. 40. © Copyright 2014 DATACONSULT All rights reserved. No part of this presentation in all its property may be used or reproduced in any form without a written permission Page 40 PMIPV6 - NETWORK-BASED MOBILITY DEPLOYMENT GUIDE: HTTP://WWW.CISCO.COM/EN/US/DOCS/IOS- XML/IOS/MOB_PMIPV6/CONFIGURATION/XE-3S/DEPLOYMENT/MOB-PMIPV6- DEPLOY.HTML ISG: CISCO ASR 1000 HTTP://WWW.CISCO.COM/EN/US/DOCS/IOS- XML/IOS/ISG/CONFIGURATION/XE-3S/ISG-XE-3S-BOOK.HTML MAG : CISCO ASR 1000 HTTP://WWW.CISCO.COM/EN/US/DOCS/IOS- XML/IOS/MOB_PMIPV6/CONFIGURATION/XE-3S/ASR1000/MOB-PMIPV6-XE-3S- ASR1000-BOOK.HTML MAG: CISCO ISR HTTP://WWW.CISCO.COM/EN/US/DOCS/IOS- XML/IOS/MOB_PMIPV6/CONFIGURATION/15-2MT/IMO-PMIPV6-MAG- SUPPORT.HTML MAG: CISCO WLC HTTP://WWW.CISCO.COM/EN/US/PRODUCTS/PS10315/PRODUCTS_TECH_NOTE09 186A0080BD4100.SHTML PMIPV6 CEC PAGE: HTTP://WWWIN.CISCO.COM/IOS/TECH/MOBILE/PROXYIPV6/ REFERENCES
  41. 41. THANK YOU Marc Nader @mourcous www.linkedin.com/in/marcnader

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