An Enhanced Ipv6 Anycast Routing Protocol Using Protocol Independent Multicast-Sparse Mode With Mobile Ipv6
Anycast routing is an efficient routing mechanism that enables the network to choose the nearest and most appropriate server very quickly. However, IPv6 Anycast is not used widely in practice yet, and there are many reasons for this. Firstly, IPv6 Anycast does not have its own standard protocol b...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English English |
| Published: |
2007
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/5275/1/FK_2007_63.pdf |
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| Summary: | Anycast routing is an efficient routing mechanism that enables the network to choose the
nearest and most appropriate server very quickly. However, IPv6 Anycast is not used
widely in practice yet, and there are many reasons for this. Firstly, IPv6 Anycast does
not have its own standard protocol because anycast builds its anycast membership tree
like multicast does but unlike multicast it sends only to one of the groups using unicast
mechanism. The other problem is that IPv6 Anycast mechanism could not provide
stateful connections between the sender and the receiver because the sender always
change the receiver based on the metric or the distance. In this thesis a new IPv6 anycast
routing protocol is developed to provide a stateful communication between the anycast
sender and the receiver. Protocol Independent Multicast-Sparse Mode (PIM-SM) has
been chosen to establish the new IPv6 anycast mechanism because of many similar
properties between multicast and anycast. A new variable is proposed in the routing
table called Best Metric Factor (BMF) to describe the status of the receiver (free or
Busy). This factor is used to decide the appropriate receiver to choose, the advantage of the proposed design can be observed easily when there are multi-anycast senders
sending their traffic to the appropriate receiver at the same time. Next we improve the
mechanism by building a direct connection between the anycast sender and the anycast
receiver using route optimization by mapping the objects in Mobile IPv6 to the objects
in the proposed mechanism. This is because there are many similar properties between
Mobile IPv6 and the proposed design. The proposed mechanism has been shown to
achieve a good performance with multi-anycast senders and can provide a stateful
communication between the sender and the appropriate receiver. |
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