Hi !
I'm currently prepared my CCNP BCMSN Certification Exam....
I would like to have some explanation about the following example found on Cisco WebSite at the address :
http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.2_25_see/configuration/guide/swtrafc.html#wp1132917
Switch(config)# interface FastEthernet1/0/1
Switch(config-if)# switchport access vlan 21
Switch(config-if)# switchport mode access
Switch(config-if)# switchport voice vlan 22
Switch(config-if)# switchport port-security
Switch(config-if)# switchport port-security maximum 20
Switch(config-if)# switchport port-security violation restrict
Switch(config-if)# switchport port-security mac-address sticky
Switch(config-if)# switchport port-security mac-address sticky 0000.0000.0002
Switch(config-if)# switchport port-security mac-address 0000.0000.0003
Switch(config-if)# switchport port-security mac-address sticky 0000.0000.0001 vlan voice
Switch(config-if)# switchport port-security mac-address 0000.0000.0004 vlan voice
Switch(config-if)# switchport port-security maximum 10 vlan access
Switch(config-if)# switchport port-security maximum 10 vlan voice
I know my English is deficient, but I don't understand what the keyword "sticky" is present on only some MAC addresses are configured on the interface but not for all of them.... French traduction of the word "sticky" was'nt help me a lot !!
I had understand if the command :"switchport port-security mac-address sticky" is used on the interface the port is allowed to dynamitly learn MAC addresses and add then to his running-config file... if the configuration is saved thoses MAC addresses are alway's configure on that interface and allowed to use this interface, before any other MAC address can be learn in the interface, if maximum is reach because of thoses command no other MAC addresses can be added.
But, what is the difference between thoses 2 commands if they are in running-config and startup-config (except for the MAC address it self) ??
Switch(config-if)# switchport port-security mac-address sticky 0000.0000.0002
Switch(config-if)# switchport port-security mac-address 0000.0000.0003
Thanks a lot in advanced for your help !
