Cisco WS-C3560E-48PD-SF Command Reference - Page 418

show dtp Chapter 2 Catalyst 3560 Switch Cisco IOS Commands show dtp Use the show dtp privileged EXEC command to display Dynamic Trunking Protocol (DTP) information for the switch or for a specified interface. show dtp [interface interface-id] [ | {begin | exclude | include} expression] Syntax Description interface interface-id | begin | exclude | include expression (Optional) Display port security settings for the specified interface. Valid interfaces include physical ports (including type, module, and port number). (Optional) Display begins with the line that matches the expression. (Optional) Display excludes lines that match the expression. (Optional) Display includes lines that match the specified expression. Expression in the output to use as a reference point. Command Modes User EXEC Command History Release 12.1(19)EA1 Modification This command was introduced. Usage Guidelines Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output are not displayed, but the lines that contain Output are displayed. Examples This is an example of output from the show dtp command: Switch# show dtp Global DTP information Sending DTP Hello packets every 30 seconds Dynamic Trunk timeout is 300 seconds 21 interfaces using DTP This is an example of output from the show dtp interface command: Switch# show dtp interface gigabitethernet0/1 DTP information for GigabitEthernet0/1: TOS/TAS/TNS: ACCESS/AUTO/ACCESS TOT/TAT/TNT: NATIVE/NEGOTIATE/NATIVE Neighbor address 1: 000943A7D081 Neighbor address 2: 000000000000 Hello timer expiration (sec/state): 1/RUNNING Access timer expiration (sec/state): never/STOPPED Negotiation timer expiration (sec/state): never/STOPPED Multidrop timer expiration (sec/state): never/STOPPED FSM state: S2:ACCESS # times multi & trunk 0 Enabled: yes In STP: no 2-386 Catalyst 3560 Switch Command Reference 78-16405-05