MPLS From a Carrier Perspective

1. MPLS From a Carrier Perspective Alan Hinds CWO IP Network Planning & Architecture

2. Agenda • CWO Perspective on MPLS • CWO MPLS Deployments • Future Developments

3. CWO Perspective on MPLS • A key enabling technology for reducing costs and simplifying networks • Unifying core layer for multiple services • Simplifying protocol layers

4. CWO MPLS Adoption

5. Deployment Strategy • Gradual migration of features and products onto MPLS • technological maturity • organisational change

6. 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

7. IP-VPN • Some IP-VPN running over MPLS • RFC2547 based MPLS-VPN • Migrating from MPLSoATM to the MPLSoSDH/GE core • providing VPN connectivity only

9. Challenges so far • Provisioning systems are immature • Delivery of functions on MPLS-VPN

10. Future Developments

11. CWO ICON • Integrated Converged Optus Network • long term direction to provide all services over a single (data) network

12. 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

13. 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

14. 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

15. Long Term • Voice • packetised voice over IP or (maybe) directly MPLS • significant challenges in providing an IP/MPLS network with voice grade availability

16. 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

17. Questions?