A virtual router
is defined as a virtual representation or software instantiation of a hardware router.
The virtual nodes have to be moved so that the power consumption is minimized and both link bandwidth and node processing capacity are available to move virtual links and virtual router
The former are virtual routers
emulated by Dynamips, the latter are physical routers or virtual routers
emulated by other simulators.
Upgrading the IP service to an IP service supporting several traffic classes with different QOS requirements is accomplished on ANET by reconfiguring the virtual routers
inside the EEs.
In this section, we suggest an isolated virtual cloud network using a Xen-based virtual router
. The configuration of a virtual network for supporting various protocols is shown in Fig.
Automatic Hot-Standby (AHS), based on an implementation of the standard Virtual Router
Redundancy Protocol (VRRP), provides a fully redundant failover capability when two HyperIP appliances are configured as hot standby pairs.
The device offers a feature set that includes role-based access control, support for RADIUS management authentication, secure management communications with SSH and IPSec, dial backup and virtual router
redundancy protocol, and IP QoS, with DiffServ and WFQ.
Features include support for the open shortest path first (OSPF) routing protocol and the virtual router
redundancy protocol (VRRP), improved fail-over capabilities between remote sites and enhanced bandwidth management and priority queuing services.
It fulfills real stability by supporting LAN to LTE NAT Routing, Dual SIM Redundancy, RSR Redundant Gateway, and Virtual Router
Redundancy Protocol (VRRP).
New Netvisor capabilities include enhanced vflow programmability with C' and Java APIs, Active-Active Virtual Link Aggregation Groups, Rapid Spanning Tree Protocol, and the Virtual Router
enterprise-class features such as Virtual Router