Table 149: 802.1Q Tunneling Commands - Edge-Core ECS4110-28T Management Manual

C IEEE 802.1Q T
ONFIGURING 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.

Table 149: 802.1Q Tunneling Commands

Command Function
dot1q-tunnel system- Configures the switch to operate in normal mode or
tunnel-control QinQ mode
switchport dot1q-tunnel Configures an interface as a QinQ tunnel port
mode
switchport dot1q-tunnel Creates a CVLAN to SPVLAN mapping entry
service match cvid
switchport dot1q-tunnel Sets the Tag Protocol Identifier (TPID) value of a
tpid tunnel port
show dot1q-tunnel Displays the configuration of QinQ tunnel ports
show interfaces Displays port QinQ operational status
switchport
General Configuration Guidelines for QinQ
Configure the switch to QinQ mode
1.
control).
Create a SPVLAN (vlan).
2.
Configure the QinQ tunnel access port to dot1Q-tunnel access mode
3.
(switchport dot1q-tunnel
Set the Tag Protocol Identifier (TPID) value of the tunnel access port.
4.
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
Configure the QinQ tunnel access port to join the SPVLAN as an
5.
untagged member (switchport allowed
Configure the SPVLAN ID as the native VID on the QinQ tunnel access
6.
port (switchport native
Configure the QinQ tunnel uplink port to dot1Q-tunnel uplink mode
7.
(switchport dot1q-tunnel
– 1165 –
C
HAPTER
Configuring IEEE 802.1Q Tunneling
(dot1q-tunnel system-tunnel-
mode).
switchport dot1q-tunnel
vlan).
vlan).
mode).
| VLAN Commands
37
Mode
GC
IC
IC
IC
PE
PE
tpid.)