Broadband Core Network

1

Broadband Core Network Presented by Sandeep
Kansal (Regional Project Manager) Videsh Sanchar
Nigam Ltd Email sandeep.kansal_at_vsnl.co.in Ph
9212106508

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Broadband Network Architecture
DWDM ring

DWDM ring

Core rings
)
L3
DWDM ring
uPOP
uPOP
uPOP
uPOP
Aggregation
uPOP
uPOP
Rings
uPOP
uPOP
uPOP
uPOP
uPOP
uPOP
MSTP
MSTP
L2

• L3 in core and aggregate
• MPLS in core
• L2 in Access
• Core common for corporate and residential
• Separate aggregate and access for Corporate and
  Residential

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Aggregate Network Architecture
Aggregate switch
IP DSLAM
L3
L2 switch Access rings
Aggregate rings
Major pop Switch
Current aggregate ring for Corporate users
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Access Last Mile Connectivity Architecture
Access switch
L2
Building switch
Access rings
Aggregate L3 switch
IP DSLAM
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Services Delivery
Local video servers
VOD traffic
Video SP
Internet
STB
INTERNET traffic
DSL SETUP
IP BB MAN
BRAS
Access
r
SS/Media gateway
VOIP traffic
ETHERNET SETUP
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SET TOP BOX Architecture
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Last Mile Connectivity to customer

• Subscribers on DSL

Core
POP
Fiber link
BBRAS
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Thank you