Each VRF contains a separate address space with unicast and multicast route tables for IPv4 and IPv6 and makes routing decisions independent of any other VRF. You can configure multiple VRFs in a VDC. Any feature not included in a license package is bundled with the Cisco NX-OS system images and is provided at no extra charge to you.Ĭisco NX-OS can virtualize each VDC to support virtual routing and forwarding instances (VRFs). By default, Cisco NX-OS uses the VRF of the incoming interface to select which routing table to use for a route lookup. When you configure a routing protocol in a VRF, you set routing parameters for the VRF that are independent of routing parameters in another VRF for the same routing protocol instance. All unicast and multicast routing protocols support VRFs. The NX-OS does not allow internal route-leaking between VRF instances today. Each VRF contains its own Address Space, Unicast, and Multicast routing tables that make decisions independent from each other. > Configuration can be saved on Nexus switch only by copy running-config startup-config command not with write memory.The NX-OS supports Virtual Routing and Forwarding (VRF) instances that define unique 元 routing domains. > There is no range command for configuring multiple interfaces in Nexus OS. > We can execute the show commands from any mode in Nexus OS.

> Subnet Mask is used in the ACL for matching the network/host in Nexus compared to Wildcard Mask in Catalyst Switches. > Nexus Switches only Supports Named Based Extended ACL where as in Catalyst Switches you can use Named/Numbered - Standard/Extended ACL. > Nexus Switches use Username/ Password for Login where as in Catalyst Switches you can use either Password or Username / Password.

> By Default SSHV2 is enabled and Telnet is disabled in Nexus Switches. > In all Nexus Switches interfaces are named as Ethernet, In Catalyst Switches Interfaces can be Ethernet or Fast Ethernet or Gigabit Ethernet depending upon the speed. > Nexus Switches will support FCOE ( Fiber Channel Over Ethernet) whereas Catalyst Switches does not support FCOE. > All the Features by default disabled in Nexus, we need to manually enable feature one by one if we want to use.

> We can combine maximum 16 ports to create ether channel in Nexus, whereas IOS supports maximum 8 ports. > By default Rapid PVST + is enabled in Nexus Switches, PVST is enabled in Cisco IOS Switches. > Nexus Switches comes with default admin account whereas in Cisco Catalyst Switches there is no default admin account.

Nexus cisco switch