Reference Guide

820 | Service Provider Bridging
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Display the status and members of a VLAN using the show vlan command from EXEC Privilege mode.
Members of a VLAN-Stacking-enabled VLAN are marked with an M in column Q.
Figure 41-3. Display the Members of a VLAN-Stacking-enabled VLAN
Configure the Protocol Type Value for the Outer VLAN Tag
The Tag Protocol Identifier (TPID) field of the S-Tag is user-configurable:
Display the S-Tag TPID for a VLAN using the command show running-config from EXEC privilege mode.
FTOS displays the S-Tag TPID only if it is a non-default value.
FTOS Options for Trunk Ports
802.1ad trunk ports may also be tagged members of a VLAN so that it can carry single and double-tagged
traffic.
You can enable trunk ports to carry untagged, single-tagged, and double-tagged VLAN traffic by making
the trunk port a hybrid port.
Task Command Syntax Command Mode
Select a value for the S-Tag TPID.
Default: 9100
CONFIGURATION vlan-stack protocol-type
Step Task Command Syntax Command Mode
1 Configure a trunk port to carry untagged, single-tagged, and
double-tagged traffic by making it a hybrid port.
Note: Note: On the C-Series and S-Series, a trunk port
can be added to an 802.1Q VLAN as well as a Stacking
VLAN only when the TPID 0x8100.
portmode hybrid INTERFACE
FTOS#show vlan
Codes: * - Default VLAN, G - GVRP VLANs
NUM Status Q Ports
* 1 Active U Gi 13/0-5,18
2 Inactive
3 Inactive
4 Inactive
5 Inactive
6 Active M Po1(Gi 13/14-15)
M Gi 13/13
FTOS#