ZyXEL Communications Ethernet Switch Cli Reference Manual page 310

Chapter 82 VLAN Stacking Commands
Table 176 vlan-stacking Command Summary (continued)
COMMAND
vlan-stacking <sptpid>
vlan-stacking selective-qinq
name <name> interface port-
channel <port> cvid <cvid> spvid
<spvid> priority <0-7>
vlan-stacking selective-qinq
name <name> interface port-
channel <port> cvid <cvid> spvid
<spvid> priority <0-7> inactive
82.2 Command Examples
In the following example figure, both A and B are Service Provider's Network (SPN)
customers with VPN tunnels between their head offices and branch offices respectively. Both
have an identical VLAN tag for their VLAN group. The service provider can separate these
two VLANs within its network by adding tag 37 to distinguish customer A and tag 48 to
distinguish customer B at edge device x and then stripping those tags at edge device y as the
data frames leave the network.
Figure 10 Example: VLAN Stacking
VLAN 24
Customer A
VLAN 24
Customer B
310
DESCRIPTION
Sets the SP TPID (Service Provider Tag Protocol Identifier).
SP TPID is a standard Ethernet type code identifying the
frame and indicating whether the frame carries IEEE 802.1Q
tag information. Enter a four-digit hexadecimal number from
0000 to FFFF.
Creates a selective VLAN stacking rule.
cvid: 1 - 4094. This is the VLAN tag carried in the packets
from the subscribers.
spvid: 1 - 4094: This is the service provider's VLAN ID (the
outer VLAN tag).
Disables the specified selective VLAN stacking rule.
SPN
x
A: 37, 24 y
B: 48, 24
VLAN 24
Customer A
VLAN 24
Customer B
Ethernet Switch CLI Reference Guide
M P
C 13
C 13
C 13