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Network survivability is an important topic for the Internet. To improve the performance of the Internet during failure, IP Fast Reroute (IPFRR) mechanisms are proposed to establish backup routes for failure-affected packets. NotVia, a most prominent one, provides 100% protection coverage for single-node failures. However, it brings in nontrivial computing and memory pressure to routers with special...
We present the design and evaluation of NPLA (Network Prefix Level Authentication), a system allowing source addresses to be validated within the network to the granularity of network prefix. Prefix routers use public key cryptography to insert NPLA headers in outgoing packets. En route entities holding the corresponding public key verify the source of a packet. NPLA provides deployment incentives...
Layer 3 virtual private networks (L3VFN) enable organizations to connect geographically dispersed sites to one another across the packet switched network of a service provider. The most popular form of L3VPN is based on BGP/MPLS (border gateway protocol/multiprotocol label switching) technology in which the service provider offers a network-based IP VPN routing and forwarding service to its customers...
Next generation networks call for novel network architectures in order to support QoS-oriented applications. However, existing QoS architectures mostly suffer from the unscalability problem. In this paper we propose a novel connectionless QoS routing framework for high-speed core networks. Unlike traditional QoS architectures, neither resource reservation nor per-flow management exists in the proposed...
As the IPv6 networks rapidly deployed, the transition problem has been changed. Because the transition of applications is a steady process with a far longer duration in comparison to the transition of infrastructure, providers cannot give up the duty of serving IPv4 traffics for the time being. On the other hand, operating a dual-stack backbone is highly costing for large-scale deployment of new networks...
For pt.1 see ibid., p.54-59 (2005). This work spawned an effort in the IETF to develop a generalized method for routing and tunneling different address families across uniform IPv4 or IPv6 backbone networks. Inspired by the CERNET2 effort, the IETF softwires working group has introduced a framework for a solution that offers a generalized, network-based capability for routing and tunneling multiple...
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