Dell Force10 S4820T FTOS Command Reference Guide - Page 1516
vlan-stack trunk, Starting with FTOS 7.8.1.0 for C-Series and S-Series FTOS 7.7.1 for E-Series,
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www.dell.com | support.dell.com vlan-stack trunk c e s Specify a Layer 2 port or port channel as a trunk port to the Stackable VLAN network. Syntax Defaults Command Modes Command History Usage Information vlan-stack trunk To remove a trunk port designation from the selected interface, enter no vlan-stack trunk. Not configured. INTERFACE Version 8.3.19.0 Introduced on S4820T Version 8.3.7.0 Introduced on S4810 Version 8.2.1.0 Introduced on the E-Series ExaScale Version 7.8.1.0 Functionality augmented for C-Series and S-Series to enable multi-purpose use of the port. Refer to Usage Information, below. Version 7.7.1.0 Functionality augmented for E-Series to enable multi-purpose use of the port. Refer to Usage Information, below. Version 7.6.1.0 Introduced for C-Series and S-Series E-Series original Command Prior to using this command, you must execute the switchport command to place the interface in Layer 2 mode. To remove the trunk port designation, the port must first be removed (using the no member interface command) from all Stackable VLAN-enabled VLANs. Starting with FTOS 7.7.1.0 for E-Series, the VLAN-Stack trunk port can transparently tunnel, in a service provider environment, customer-originated xSTP control protocol PDUs. Refer to Chapter 47, Service Provider Bridging. Starting with FTOS 7.8.1.0 for C-Series and S-Series (FTOS 7.7.1 for E-Series), a VLAN-Stack trunk port is also allowed to be configured as a tagged port and as an untagged port for single-tagged VLANs. When the VLAN-Stack trunk port is also a member of an untagged VLAN, the port should be in hybrid mode. Refer to portmode hybrid. In Example 1 below a VLAN-Stack trunk port is configured and then also made part of a single-tagged VLAN. 1516 | VLAN Stacking