| Publisher | Lahore University of Management Sciences | ||
|---|---|---|---|
| Format | 90.1KB PDF | Date added | 27 Aug 2005 |
| Topics | Switching, Bandwidth Issues, MPLS | ||
| Downloads | 16 | ||
This paper proposes an architecture for MPLS restoration routing of DiffServ traffic. This architecture, namely Per Class Aggregate Information With Preemption (CAIP), facilitates provisioning of two key QoS features for multimedia traffic: prioritized guaranteed bandwidth and fast restoration in the event of an element failure. The CAIP architecture is scalable and requires propagating only per-class aggregate link usage information; such information can be readily piggybacked on link state routing packets using traffic engineering extensions to link state routing protocols. CAIP results in improved bandwidth sharing compared to Simple Aggregate Information Scenario (SAIS), resulting in fewer LSP rejected requests and a greater amount of active bandwidth placed on the network.
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