--> Cisco Catalyst Switches uses IOS as the operating system where as Nexus Switches use NX-OS
--> Cisco Switches will support both LACP & PAGP for creating Ether channel where as Nexus Switches will only support LACP
--> Nexus Switches will support only 802.1Q Trunk Encapsulation
--> Nexus Switches are having two modes, It does not support User Mode.
i) Privilege Mode
ii) Global Configuration Mode
--> By default Rapid PVST + is enabled in Nexus Switches, PVST is enabled in Cisco IOS Switches.
--> We can combine maximum 16 ports to create ether channel in Nexus, whereas IOS supports maximum 8 ports.
--> All the Features by default disabled in Nexus, we need to manually enable feature one by one if we want to use.
--> Nexus Switches will support FCOE ( Fiber Channel Over Ethernet) whereas Catalyst Switches does not support FCOE.
--> 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.
--> By Default SSHV2 is enabled and Telnet is disabled in Nexus Switches.
--> Nexus Switches use Username/ Password for Login where as in Catalyst Switches you can use either Password or Username / Password .
--> Nexus Switches only Supports Named Based Extended ACL where as in Catalyst Switches you can use Named/Numbered - Standard/Extended ACL.
--> Subnet Mask is used in the ACL for matching the network/host in Nexus compared to Wildcard Mask in Catalyst Switches.
--> We can execute the show commands from any mode in Nexus OS.
--> There is no range command for configuring multiple interfaces in Nexus OS.
--> Configuration can be saved on Nexus switch only by copy running-config startup-config command not with write memory.
--> Cisco Switches will support both LACP & PAGP for creating Ether channel where as Nexus Switches will only support LACP
--> Nexus Switches will support only 802.1Q Trunk Encapsulation
--> Nexus Switches are having two modes, It does not support User Mode.
i) Privilege Mode
ii) Global Configuration Mode
--> Nexus Switches comes with default admin account whereas in Cisco Catalyst Switches there is no default admin account.
--> By default Rapid PVST + is enabled in Nexus Switches, PVST is enabled in Cisco IOS Switches.
--> We can combine maximum 16 ports to create ether channel in Nexus, whereas IOS supports maximum 8 ports.
--> All the Features by default disabled in Nexus, we need to manually enable feature one by one if we want to use.
--> Nexus Switches will support FCOE ( Fiber Channel Over Ethernet) whereas Catalyst Switches does not support FCOE.
--> 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.
--> By Default SSHV2 is enabled and Telnet is disabled in Nexus Switches.
--> Nexus Switches use Username/ Password for Login where as in Catalyst Switches you can use either Password or Username / Password .
--> Nexus Switches only Supports Named Based Extended ACL where as in Catalyst Switches you can use Named/Numbered - Standard/Extended ACL.
--> Subnet Mask is used in the ACL for matching the network/host in Nexus compared to Wildcard Mask in Catalyst Switches.
--> We can execute the show commands from any mode in Nexus OS.
--> There is no range command for configuring multiple interfaces in Nexus OS.
--> Configuration can be saved on Nexus switch only by copy running-config startup-config command not with write memory.
Nexus2k switches doesn't have console port. Is there any way to manage this switch?
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