3com 10014917 Benutzerhandbuch

3Com Switch 4200G Family

 

13

 

Command Reference

display mac-address security

Use the 

 command to display the information about Security MAC address.

display mac-authentication

Use the 

 command to display global information about centralized MAC 

address authentication

display memory

Use the 

 command to display the memory usage of a specified switch.

display mirroring-group

Use the 

 command to display the parameter settings of a port mirroring group.

display ndp

Use the 

 command to display global NDP configuration information, including the interval to 

send NDP packets, the holdtime of NDP information, and the information about the neighbors of all the 
ports.

display ntdp

Use the 

 command to display the global NTDP information. The information includes the 

range (in hop count) within which topology information is collected, the interval to collect topology 
information (the NTDP timer), the delay time for a device to forward topology-collection requests, the delay 
time for a topology-collection request to be forwarded through a port, and the time cost during the last 
topology collection.

display ntdp device-list

Use the 

 command to display the device information collected through NTDP.

display ntdp single-device mac-address

Use the 

 h-h-h command to display the information about a 

specific device in detail.

display ntp-service sessions

Use the 

command to display the status of all the sessions maintained by 

NTP (Network Time Protocol) service provided by the local equipment.

display ntp-service status

Use the command 

 to display the NTP service status.

display ntp-service trace

Use the 

command to display the brief information of each NTP time server 

along the time synchronization chain from the local device to the reference clock source.

display packet-filter

Use the 

 command to view the application information of packet filtering, including 

the ACL name, rule names, and application status.

display port

Use the 

command to display all current ports with their type indicated.

display port-security

Use the 

 command to display the information about port security configuration 

(including global configuration and all or specific port configuration).

display port vlan-vpn

Use the 

 command to display the information about the VLAN VPN configuration 

of the current system, including current TPID value, VLAN-VPN ports, and VLAN-VPN uplink ports.