The joint venture between Cisco and VMware brought a new highly scalable product for networkers is Cisco Nexsus 1000V. Cisco Nexus 1000V is a distributed virtual switch which is fully integrated within VMware Infrastructure. The Cisco Nexus 1000V has 2 different modules, they are ; Virtual Ethernet Module (VEM):- Each hypervisor contains one VEM module and it is a software solution that effectively performs following tasks: Advance Networking Security Traffic switching between virtual machines Routing between rest of the network Virtual Supervisor Module (VSM) :- The VSM is a standalone, physical or virtual module that performs the following functions for the Cisco Nexus 1000V system: Configuration Management Monitoring Integration with VMware In the Cisco Nexus 1000V, traffic is switched between virtual machines locally at each VEM instance level