Transcript No Slide Title

MPLS From a Carrier
Perspective
Alan Hinds
CWO
IP Network Planning & Architecture
Agenda
• CWO Perspective on MPLS
• CWO MPLS Deployments
• Future Developments
CWO Perspective on MPLS
• A key enabling technology for
reducing costs and simplifying
networks
– Unifying core layer for multiple
services
– Simplifying protocol layers
CWO MPLS Adoption
Deployment Strategy
• Gradual migration of features
and products onto MPLS
– technological maturity
– organisational change
Internet
• CWO Internet service runs
over an MPLS core
– MPLS LSP segregate national
and international traffic
– POS and GE transmission
– fast re-route instead of SDH
protection
IP-VPN
• Some IP-VPN running over
MPLS
– RFC2547 based MPLS-VPN
– Migrating from MPLSoATM to the
MPLSoSDH/GE core
– providing VPN connectivity only
International Gateway
to Asia
2x
Moorooka
ST
M1
MPLS-VPN POP
Campbellfield
International Gateway
to US via APCN
STM-4
S
Mascot
ST
M4
STM-1
ST
M
-1
GE
Rosebery
M
-4
Internet POP
-1
TM
ST
MPLS Core node
M
-1
GE
Mitchell
2 x STM-1
ST
GE
Regency Park
M4
STM-1
Ultimo
ST
Lockridge
STM-1
STM
-1
Rochdale
International Gateway to
US via Southern Cross
Challenges so far
• Provisioning systems are
immature
• Delivery of functions on MPLSVPN
Future Developments
CWO ICON
• Integrated Converged Optus
Network
– long term direction to provide
all services over a single (data)
network
Short term
• MPLS-VPN to enable single IP
edge device for all IP services
– no more routers dedicated to a
particular service
– National, international, bundled
Internet, IP-VPNs and transparent
LAN
Short Term
• VLAN trunking over MPLS
– point to point LAN transport
over the MPLS core
– implement service on same
edge device and as IP services
Long Term
• ATM over MPLS
– ATM and IP over a single MPLS
core network may reduce costs
– Implementations of ATMoMPLS
under active study
– expect QoS and network
management challenges
Long Term
• Voice
– packetised voice over IP or
(maybe) directly MPLS
– significant challenges in
providing an IP/MPLS network
with voice grade availability
Summary
• MPLS is seen as a key enabling
technology for reducing
network costs and complexity
• MPLS in service for Internet and
IP-VPN
• ATMoMPLS and VLANoMPLS
under active study
• Voice under study
Questions?