Abstract
In the ASON architecture, optical network is viewed as a separately deployed transport network providing transparent transport service to IP/MPLS domain networks. As ASON lack of scalability and efficient traffic grooming, GMPLS enabled multilayer network is a promising alternative for deployment of IP over WDM network. The multilayer network composed of network node that is based on the hybrid architecture integrating IP/MPLS layer and optical switch with a unified GMPLS control instance can bypass lightpath at optical layer or terminate a lightpath locally at IP/MPLS layer. This paper illustrated the architecture of G-LSR, and addressed the essential aspects of network operation mechanisms including multilayer routing, lightpath provisioning and LSP hierarchy provisioning. Current IP network can gradually evolve to IP/optical integrated multi-layer network through updating network node of IP router to G-LSR.
| Original language | English |
|---|---|
| Article number | 100 |
| Pages (from-to) | 703-710 |
| Number of pages | 8 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5626 |
| Issue number | PART 2 |
| DOIs | |
| Publication status | Published - 2005 |
| Externally published | Yes |
| Event | Network Architectures, Management, and Applications II - Beijing, China Duration: 9 Nov 2004 → 11 Nov 2004 |
Keywords
- Automatic Switched Optical Network (ASON)
- GMPLS Enabled Multi-layer Switch Router (G-LSR)
- Generalized Multiprotocol Label Switching (GMPLS)
- Traffic Grooming