H3C S6850 Series, Руководство по настройке

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Figure 7 Two-to-two VLAN mapping implementation
Restrictions and guidelines: VLAN mapping
configuration
To add VLAN tags to packets, you can configure both VLAN mapping and QinQ. VLAN mapping
takes effect if a configuration conflict occurs. For more information about QinQ, see "Configuring
QinQ."
To add or replace VLAN tags for packets, you can configure both VLAN mapping and a QoS policy.
The QoS policy takes effect if a configuration conflict occurs. For information about QoS policies, see
ACL and QoS Configuration Guide .
Do not configure VLAN mapping and Ethernet service instance-to-VSI binding on the same Layer 2
Ethernet interface or Layer 2 aggregate interface. Otherwise, these features might not take effect.
VLAN mapping tasks at a glance
Use the appropriate VLAN mapping methods for the devices in the network.
To configure VLAN mapping, perform the following tasks:
•
Configuring one-to-one VLAN mapping
Configure one-to-one VLAN mapping on the wiring-closet switch, as shown in Figure 1 .
•
Configuring many-to-one VLAN mapping
Configure many-to-one VLAN mapping on the campus switch, as shown in Figure 1 .
{
Configuring many-to-one VLAN mapping in dynamic IP address assignment environment
{
Configuring many-to-one VLAN mapping in static IP address assignment environment
•
Configuring one-to-two VLAN mapping
Configure one-to-two VLAN mapping on PE 1 and PE 4, as shown in Figure 2 , through which
traffic from customer networks enters the service provider networks.
•
Configuring two-to-two VLAN mapping
Configure two-to-two VLAN mapping on PE 3, as shown in Figure 2 , which is an edge device of
the SP 2 network.
Prerequisites
Before you configure VLAN mapping, create original and translated VLANs.