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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

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mpls from a carrier perspective

MPLS From a Carrier Perspective

Alan Hinds

CWO

IP Network Planning & Architecture

agenda
Agenda
  • CWO Perspective on MPLS
  • CWO MPLS Deployments
  • Future Developments
cwo perspective on mpls
CWO Perspective on MPLS
  • A key enabling technology for reducing costs and simplifying networks
    • Unifying core layer for multiple services
    • Simplifying protocol layers
deployment strategy
Deployment Strategy
  • Gradual migration of features and products onto MPLS
    • technological maturity
    • organisational change
internet
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
IP-VPN
  • Some IP-VPN running over MPLS
    • RFC2547 based MPLS-VPN
    • Migrating from MPLSoATM to the MPLSoSDH/GE core
    • providing VPN connectivity only
challenges so far
Challenges so far
  • Provisioning systems are immature
  • Delivery of functions on MPLS-VPN
cwo icon
CWO ICON
  • Integrated Converged Optus Network
    • long term direction to provide all services over a single (data) network
short term
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 term13
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
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 term15
Long Term
  • Voice
    • packetised voice over IP or (maybe) directly MPLS
    • significant challenges in providing an IP/MPLS network with voice grade availability
summary
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