Cisco os

sw1# configure
Enter configuration commands, one per line. End with CNTL/Z.
sw1(config)# vlan 50
sw1(config-vlan)# name rezerva
sw1(config-vlan)# state active
sw1(config-vlan)# no shutdown //link up
sw1(config-vlan)# shutdown //link down
sw1(config-vlan)# exit
sw1(config)#



sw1# config
Enter configuration commands, one per line. End with CNTLsw1(config)# interface Eth1/40
sw1(config)# interface Ethernet1/19
sw1(config-if)# switchport mode access
sw1(config-if)# switchport access vlan 10
sw1(config-if)# exit
sw1(config)# exit


 copy running-config startup-config

 
 
 
sw1# configure
Enter configuration commands, one per line. End with CNTL/Z.
sw1(config)# vlan 50
sw1(config-vlan)# name rezerva
sw1(config-vlan)# state active
sw1(config-vlan)# no shutdown
sw1(config-vlan)# exit
sw1(config)#
sw1# config
Enter configuration commands, one per line. End with CNTL/Z.
sw1(config)# interface Eth1/20
sw1(config-if)# switchport mode trunk
sw1(config-if)# switchport trunk native vlan 1
sw1(config-if)# switchport trunk allowed vlan add 10,20,30,40
sw1(config-if)# exit
sw1# config
Enter configuration commands, one per line. End with CNTL/Z.
sw1(config)# interface Eth1/40
sw1(config-if)# switchport mode access
sw1(config-if)# switchport access vlan 10
sw1(config-if)# exit
sw1(config)# exit



sw1# copy running-config startup-config
[########################################] 100%
Copy complete, now saving to disk (please wait)...
sw1#
Comment by Rostislav Chalupský [ 04.03.2019 ]
sw1# show running-config interface ethernet Eth1/40
!Command: show running-config interface Ethernet1/40
!Time: Mon Mar 4 12:11:00 2019
version 6.0(2)U6(5)
interface Ethernet1/40

 
 
 
 
 sw1# show mac address-table interface Eth1/2 Legend: * - primary entry, G - Gateway MAC, (R) - Routed MAC, O - Overlay MAC age - seconds since first seen,+ - primary entry using vPC Peer-Link VLAN MAC Address Type age Secure NTFY Ports/SWID.SSID.LID ---------+-----------------+--------+---------+------+----+------------------ * 1 90e2.ba6b.bbdc dynamic 1090 F F Eth1/2