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EthioTelecom IP NGN Network

EthioTelecom IP NGN Network. Course Objectives. Getting familiar with the topology of IPNGN network Explain the function of devices in the network Explain the implementation of services. Course Contents. Chapter I IP NGN Overview EthoTelecom Backbone Network

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EthioTelecom IP NGN Network

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  1. EthioTelecom IP NGN Network

  2. Course Objectives • Getting familiar with the topology of IPNGN network • Explain the function of devices in the network • Explain the implementation of services

  3. Course Contents • Chapter I IP NGN Overview • EthoTelecom Backbone Network • Logical Topology of IPNGN Network • Network Topology of Dessie Site

  4. Course Contents • Chapter I IP NGN Overview • EthoTelecom Backbone Network • Logical Topology of IPNGN Network • Network Topology of Dessie Site

  5. Logical Topology Of IP NGN network

  6. Course Contents • Chapter I IP NGN Overview • EthoTelecom Backbone Network • Logical Topology of IPNGN Network • Network Topology of Dessie Site

  7. Network Topology of Dessie Site

  8. Course Contents • Chapter II Basic Function of Devices • CS – Convergence Switches • ER – Edge Router • CR Routers – Core Router • BR – Backbone Routers • GER – General Excellent Router • BRAS – • RR – Route Reflector

  9. CS ( Convergence Switch) • The function of switch include: • Converge traffic from different services and route to the edge router • Provide interface for different services • Isolation of data for different services based on vlan • Port level QOS ZXR10 T240G/T160G/T64G/T40G MPLS 10G Routing SW

  10. ER ( Edge Router) • The function of ER include: • Serves as a gateway for different services • VPN based Isolation of services • Different policies related to each services are defined on the ER • Services routes are advertised here • M6000 routers are used as ER routers

  11. CR ( Core Router) • The function of CR include: • Converge traffic from ER routers on a site • Provide redundant link to the BR routers • M6000 routers are also used as CR routers

  12. BR ( Backbone Router) • The function of BR include: • Route inter site/regional traffic • Provide redundant link to the CR routers with a mesh topology • Advertize default route to ER routers for Data services • T8000 routers are used as BR routers

  13. GER ( General Excellent Router) • The function of GER include: • Provide NAT service for internet traffic

  14. BRAS ( Broad Band Access Server) • The function of BRAS include: • Serves as a gateway for IPoE and PPPOE users • Isolate broadband users based on vlan and interface • Allocate IP address for broadband users • 10800E routers serve as bras in IP NGN network

  15. RR ( Route Reflector) • The function of RR include: • Reflect VPNV4 route to ER • M6000 routers are used as RR routers ?

  16. Service Deployment In IP NGN network • Services carried by IP NGN network: • GSM/ CDMA traffic • Fixed line traffic • Data/Internet traffic • All services are deployed as a separate VPN • MPBG used as routing protocol • MPLS switching provides routing through the network

  17. Summary • Network Topology of IP NGN • The function of devices in IP NGN network • Service deployment in IP NGN network

  18. Thanks

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