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 ID: 660821
Download Presentation The PPT/PDF document "EthioTelecom IP NGN Network" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
EthioTelecom IP NGN Network Slide2
Course Objectives
Getting familiar with the topology of IPNGN network
Explain the function of devices in the network
Explain the implementation of services Slide3
Course Contents
Chapter I
IP NGN Overview
EthoTelecom
Backbone Network
Logical Topology of IPNGN Network
Network Topology of
Dessie
Site
Slide4Slide5
Course Contents
Chapter I
IP NGN Overview
EthoTelecom
Backbone Network
Logical Topology of IPNGN Network
Network Topology of
Dessie
Site
Slide6
Logical Topology Of IP NGN network Slide7
Course Contents
Chapter I
IP NGN Overview
EthoTelecom
Backbone Network
Logical Topology of IPNGN Network
Network Topology of
Dessie
Site
Slide8
Network Topology of Dessie Site Slide9
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
Slide10
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 SWSlide11
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
Slide12
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
Slide13
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
Slide14
GER ( General Excellent Router)
The function of GER include:
Provide NAT service for internet traffic
Slide15
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 Slide16
RR ( Route Reflector)
The function of RR include:
Reflect VPNV4 route to ER
M6000 routers are used as RR routers ?
Slide17
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
Slide18
Summary
Network Topology of IP NGN
The function of devices in IP NGN network
Service deployment in IP NGN networkSlide19
Thanks