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3Com Switch 4200G Family 13
Command Reference
display mac-address security
Use the display mac-address security command to display the information about Security MAC address.
Any view
display mac-authentication
Use the display mac-authentication command to display global information about centralized MAC
address authentication
Any view
display memory
Use the display memory command to display the memory usage of a specified switch.
Any view
display mirroring-group
Use the display mirroring-group command to display the parameter settings of a port mirroring group.
Any view
display ndp
Use the display ndp 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.
Any view
display ntdp
Use the display ntdp 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.
Any view
display ntdp device-list
Use the display ntdp device-list command to display the device information collected through NTDP.
Any view
display ntdp single-device mac-address
Use the display ntdp single-device mac-address h-h-h command to display the information about a
specific device in detail.
Cluster view
display ntp-service sessions
Use the display ntp-service sessions command to display the status of all the sessions maintained by
NTP (Network Time Protocol) service provided by the local equipment.
Any view
display ntp-service status
Use the command display ntp-service status to display the NTP service status.
Any view.
display ntp-service trace
Use the display ntp-service trace 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.
Any view
display packet-filter
Use the display packet-filter command to view the application information of packet filtering, including
the ACL name, rule names, and application status.
Any view
display port
Use the display port command to display all current ports with their type indicated.
Any view
display port-security
Use the display port-security command to display the information about port security configuration
(including global configuration and all or specific port configuration).
Any view
display port vlan-vpn
Use the display port vlan-vpn 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.
Any view