Chapter 36: VLAN Commands
Configuring IEEE 802.1Q Tunneling
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C
ONFIGURING
IEEE 802.1Q T
UNNELING
IEEE 802.1Q tunneling (QinQ tunneling) uses a single Service Provider
VLAN (SPVLAN) for customers who have multiple VLANs. Customer VLAN
IDs are preserved and traffic from different customers is segregated within
the service provider’s network even when they use the same customer-
specific VLAN IDs. QinQ tunneling expands VLAN space by using a VLAN-in-
VLAN hierarchy, preserving the customer’s original tagged packets, and
adding SPVLAN tags to each frame (also called double tagging).
This section describes commands used to configure QinQ tunneling.
General Configuration Guidelines for QinQ
1.
Configure the switch to QinQ mode (
2.
Create a SPVLAN (
).
3.
Configure the QinQ tunnel access port to dot1Q-tunnel access mode
(
4.
Set the Tag Protocol Identifier (TPID) value of the tunnel access port.
This step is required if the attached client is using a nonstandard 2-byte
ethertype to identify 802.1Q tagged frames. The standard ethertype
value is 0x8100. (See
.)
5.
Configure the QinQ tunnel access port to join the SPVLAN as an
untagged member (
).
6.
Configure the SPVLAN ID as the native VID on the QinQ tunnel access
port (
).
7.
Configure the QinQ tunnel uplink port to dot1Q-tunnel uplink mode
(
Table 36-6: 802.1Q Tunneling Commands
Command
Function
Mode
Configures the switch to operate in normal mode or
QinQ mode
GC
Configures an interface as a QinQ tunnel port
IC
Creates a CVLAN to SPVLAN mapping entry
IC
Sets the Tag Protocol Identifier (TPID) value of a
tunnel port
IC
Displays the configuration of QinQ tunnel ports
PE
Displays port QinQ operational status
PE
Summary of Contents for SSE-G2252
Page 42: ...44 General IP Routing on page 627...
Page 603: ...Chapter 16 IP Configuration Setting the Switch s IP Address IP Version 6 609...
Page 883: ...Chapter 24 General Security Measures Port based Traffic Segmentation 894...
Page 989: ...Chapter 30 Congestion Control Commands Automatic Traffic Control Commands 1000 Console...
Page 1007: ...Chapter 33 Address Table Commands 1019...
Page 1137: ...Chapter 38 Quality of Service Commands 1150...