… virtualization has been proposed as a diversifying attribute of the future inter-networking
paradigm that can enable seamless integration of new features to the current Internet resulting …

… In this paper, we thus present a VNT (virtual network topology) service (Fig. 1), which
provides multi-point connectivity and improves flexibility regarding bandwidth while reducing …

… There is a virtual network topology with virtual machines, where the routing engine is
installed on each of them [1]. The virtual network topology mirrors the physical network topology. …

… , \({A_{v}^{N}}\) represents the attribute collection of virtual nodes in the virtual network, such
… {v}^{L}}\) represents the attribute collection of virtual links in the virtual network, such as the …

… network topology, … virtual network topology-aware southbound message delivery. However,
it is intractable to optimally deliver southbound messages according to the virtual attributes of …

… which spawns virtual networks. Prior to creation, a virtual network is described in a profiling
script, which includes details of topology and resource requirements, among other attributes. …

… attributes, and for those declarations (or withdrawals) to result in the registration (or removal
of registrations) of those attributes with other applications on the network… and QoS attributes. …

… virtual networks to the total number of virtual network requests. If the resources are insufficient
for hosting a virtual network, then the virtual network … For each type of network attribute, we …

… Accordingly, this VN request is sent to VNP with specific virtual topology attributes,
including node requirements (eg, capacities and desired locations) and link requirements (eg, …

… virtual network request to a subgraph of the physical network, … A V is the attributes of the
vertices and A E is the attributes of the … A V and A E consist of the attributes that are as explained …