Reference Guide

vlan-stack protocol-type
Define the stackable VLAN tag protocol identifier (TPID) for the outer VLAN tag (also called the VMAN tag). If you do not
configure this command, FTOS assigns the value 0x9100.
Z9000
Syntax
vlan-stack protocol-type number
Parameters
number Enter the hexadecimal number as the stackable VLAN tag.
You may specify both bytes of the 2-byte S-Tag TPID. The range is
from 0 to FFFF. The default is 9100.
Defaults 0x9100
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.7.0 Introduced on the S4810.
Version 8.2.1.0 Introduced on the E-Series ExaScale. C-Series and S-Series accept
both bytes of the 2-byte S-Tag TPID.
Version 8.2.1.0 Introduced on the E-Series ExaScale.
Version 7.6.1.0 Introduced on the C-Series and S-Series.
E-Series original
Command
Usage
Information
For specific interoperability limitations regarding the S-Tag TPID, refer to the FTOS
Configuration Guide .
The four characters you enter in the CLI for number are interpreted, as shown in the following
table.
Number Resulting TPID
1 0x0001
10 0x0010
81 0x0081
8100 0x8100
Related
Commands
portmode hybrid — sets a port (physical ports only) to accept both tagged and untagged
frames. A port configured this way is identified as a hybrid port in report displays.
1420