Transcript EthioTelecom IP NGN Network

EthioTelecom IP NGN Network
Internal
Use Only▲
For Internal
Use Only▲
Course Objectives
• Getting familiar with the topology of IPNGN network
• Explain the function of devices in the network
• Explain the implementation of services
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<Confidentialand
andProprietary
ProprietaryInformation
InformationofofZTE
ZTECORPORATION>
Corporation >
Internal
Use Only▲
For Internal
Use Only▲
Course Contents
• Chapter I IP NGN Overview
•
EthoTelecom Backbone Network
•
Logical Topology of IPNGN Network
•
Network Topology of Dessie Site
<Confidential
<Confidentialand
andProprietary
ProprietaryInformation
InformationofofZTE
ZTECORPORATION>
Corporation >
Internal Use Only▲
<Confidential and Proprietary Information of ZTE CORPORATION>
Internal
Use Only▲
For Internal
Use Only▲
Course Contents
• Chapter I IP NGN Overview
•
EthoTelecom Backbone Network
•
Logical Topology of IPNGN Network
•
Network Topology of Dessie Site
<Confidential
<Confidentialand
andProprietary
ProprietaryInformation
InformationofofZTE
ZTECORPORATION>
Corporation >
Logical Topology Of IP NGN network
<Confidential and Proprietary Information of ZTE CORPORATION>
Internal Use Only▲
Internal
Use Only▲
For Internal
Use Only▲
Course Contents
• Chapter I IP NGN Overview
•
EthoTelecom Backbone Network
•
Logical Topology of IPNGN Network
•
Network Topology of Dessie Site
<Confidential
<Confidentialand
andProprietary
ProprietaryInformation
InformationofofZTE
ZTECORPORATION>
Corporation >
Network Topology of Dessie Site
<Confidential and Proprietary Information of ZTE CORPORATION>
Internal Use Only▲
Internal
Use Only▲
For Internal
Use Only▲
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
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CS ( Convergence Switch)

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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
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ER ( Edge Router)
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
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
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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
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BR ( Backbone Router)
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
The function of BR include:
•
Route inter site/regional traffic
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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
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Internal Use Only▲
GER ( General Excellent Router)
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The function of GER include:
•
Provide NAT service for internet traffic
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BRAS ( Broad Band Access Server)
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
Internal Use Only▲
The function of BRAS include:
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Serves as a gateway for IPoE and PPPOE users
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Isolate broadband users based on vlan and interface
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Allocate IP address for broadband users
10800E routers serve as bras in IP NGN network
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RR ( Route Reflector)
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The function of RR include:
•
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Reflect VPNV4 route to ER
M6000 routers are used as RR routers ?
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Service Deployment In IP NGN network
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Services carried by IP NGN network:
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GSM/ CDMA traffic
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Fixed line traffic
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Data/Internet traffic
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All services are deployed as a separate VPN
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MPBG used as routing protocol
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MPLS switching provides routing through the
network
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Summary

Network Topology of IP NGN

The function of devices in IP NGN network

Service deployment in IP NGN network
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Internal Use Only▲