Device Management
Quick Commands
Basic Device Management
SSH
crypto key generate rsa modulus (modulus value)show ip sshshow sshDHCP
ip address dhcpshow dhcp leaseshow interfaces vlan 1show ip default-gatewayHistory
show historyterminal history size xhistory size xLogging and Domain Lookup
no logging consoleno ip domain-lookupexec timeout (minutes)data plane
- work a switch does to forward frames generated by the devices connected to the switch
control plane
- configuration and processes that control and change the choices made by the switch’s data plane
management plane
- deals with managing the device itself, rather than controlling what the device is doing
SSH
crypto key generate rsa modulus modulus-value
- (Use at least a 768-bit key to support SSH version 2.)
show ip ssh
- lists status information about the SSH server
show ssh
- lists information about each SSH client currently connected into the switch
Switch DHCP
ip address dhcp
Show dhcp lease
show interfaces vlan 1
show ip default-gateway
show history
- lists the commands currently held in the history buffer.
terminal history size x
- allows a single user to set the size of their history buffer
- just for this one login session
history size x
- console or vty line configuration mode
- sets the default number of commands saved in the history buffer for the users of the console or vty lines
Logging and domain lookup
no logging console
logging console
exec-timeout minutes seconds
- line subcommand
- enables you to set the length of that inactivity timer.
- In the lab (but not in production), you might want to use the special value of 0 minutes and 0 seconds meaning “never time out.”