Configuring An Ethernet Interface As A Trunk Port - Cisco Catalyst 2960 series Configuration Manual
Consolidated platform configuration guide, ios release 15.2(4)e
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Also See for Catalyst 2960 series:
- Software configuration manual (980 pages) ,
- Command reference manual (800 pages) ,
- Configuration manual (120 pages)
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How to Configure VLAN Trunks
• To enable trunking to a device that does not support DTP, use the switchport mode trunk and switchport
Configuring an Ethernet Interface as a Trunk Port
Configuring a Trunk Port
Because trunk ports send and receive VTP advertisements, to use VTP you must ensure that at least one trunk
port is configured on the switch and that this trunk port is connected to the trunk port of a second switch.
Otherwise, the switch cannot receive any VTP advertisements.
Before You Begin
SUMMARY STEPS
1. enable
2. configure terminal
3. interface interface-id
4. switchport mode {dynamic {auto | desirable} | trunk}
5. switchport access vlan vlan-id
6. switchport trunk native vlan vlan-id
7. end
8. show interfaces interface-id switchport
9. show interfaces interface-id trunk
10. copy running-config startup-config
DETAILED STEPS
Command or Action
Step 1
enable
Example:
Switch> enable
Step 2
configure terminal
Example:
Switch# configure terminal
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
2134
nonegotiate interface configuration commands to cause the interface to become a trunk but to not
generate DTP frames.
Purpose
Enables privileged EXEC mode. Enter your password if prompted.
Enters the global configuration mode.
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Troubleshooting
