Appliance requirements RAM: 3072 MB You need KVM enable on your machine or in the GNS3 VM. Download the files for one of the supported version Īppliance usage The default username/password is admin/admin.This includes NXAPI and MPLS LDP support. Cisco NX-OSv appliance NXOSv is a reference platform for an implementation of the Cisco Nexus operating system, based on the Nexus 7000-series platforms, running as a full virtual machine on a hypervisor.