Control of Virtual Networks Spanning Multiple Infrastructure Domains

1688 Words Jan 25th, 2018 7 Pages
Additionally the virtual links are also needed to be identified which can be done by using virtual link ID. One of the solution would consist of simply mapping the virtual link ID to whatever data link layer specific tag is in use. A number of available link virtualization techniques such as ATM, Ethernet VLAN could be used for this purpose. This Virtual link ID can be used for both virtual link identifier and a tag for data forwarding.
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Scalability is a major requirement for virtual networks. For this reason, virtual link aggregation will constitute an important requirement for network virtualization. Virtual link aggregation can be defined as a set of virtual links that follow a common path and are similarly treated between a pair of virtual nodes. It can be performed by carrying at least two types of identifiers in the data plane, one for virtual network identification and another for hop-by-hop forwarding. Hence, virtual link aggregation enhances scalability and also improves performance.
7. Building Virtual Networks
7.1 The VNP- InP interface:
The VNP (virtual network provider) / InP interface is a key component of network virtualization architecture. The virtual network provider is able to request the establishment of a virtual network, the modification or the removal of a…
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