Quick Reference Guide

230 | VLANs
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STP BPDU tunneling: The l2pdu-forwarding mode, used for BPDU tunneling, is enabled by default. Use
no dvlan-tunnel l2pdu-forwarding enable to disable forwarding. The default forwarding MAC address is
01:01:E8:00:00:00. Use
dvlan-tunnel l2pdu-forwarding mac-address mac-addr to change the MAC address.
Inspect settings with
show dvlan-tunnel l2pdu-forwarding, as shown in Figure 14-193.
Figure 14-193. Example of Use of show dvlan-tunnel l2pdu-forwarding Command
3
mode dvlan-tunnel
(same as mode dot1q-tunnel)
Interface Config Enable DVLAN tagging for the port.
4
show dvlan-tunnel
(same as show dot1q-tunnel)
Privileged Exec Display DVLAN-enabled VLAN tagging.
5
show dvlan-tunnel interface {unit/slot/
port
| all}
(same as show dot1q-tunnel interface
{unit/slot/port | all})
Privileged Exec Display detailed information for a specific
interface.
6
vlan participation include vlan-ID Interface Config Set the VLAN membership participation for
the access-core port pair.
7
vlan participation exclude vlan-ID Interface Config To prevent leakage, remove participation
from any common VLANs, typically the
default VLAN 1.
8
vlan pvid vlan-ID Interface Config Set the VLAN ID associated with the
customer for the access port. This VLAN ID
is the one that you designated in Step 4.
9
vlan tagging vlan-ID Interface Config Enable tagging on the core port. This VLAN
ID is the one that you designated in Step 4.
Step Command Syntax Command Mode Purpose
Force10 S50 #show dvlan-tunnel l2pdu-forwarding
L2Pdu-Forwarding Mode: enabled.