L2Pt Restrictions And Guidelines; L2Pt Configuration Task List; Enabling L2Pt; Restrictions And Guidelines - H3C S7500X Series Configuration Manual

Figure 3 L2PT network diagram

L2PT restrictions and guidelines

Configure L2PT only on PE devices.

L2PT configuration task list

Tasks at a glance
(Required.)
(Optional.) Setting the destination multicast MAC address for tunneled packets

Enabling L2PT

Restrictions and guidelines

•
To enable L2PT for a Layer 2 protocol on a port, perform the following tasks:
Enable the protocol on the connected CE, and disable the protocol on the port.
Disable the protocol (for example, STP) on the PE ports connecting to an aggregate
interface on a CE when the following conditions exists:
− The protocol is running on the aggregate interface on the CE.
− The aggregate interface on the CE connects to an L2PT-enabled port on the PE.
Enable L2PT on ports connected to a customer network. If you enable L2PT on ports
connected to the service provider network, L2PT determines that the ports are connected
to a customer network.
Make sure the VLAN tags of Layer 2 protocol packets are not changed or deleted for the
tunneled packets to be transmitted correctly across the service provider network.
•
L2PT for LLDP supports LLDP packets from only nearest bridge agents.
•
You can enable L2PT on a member port of a Layer 2 aggregation group, but the configuration
does not take effect.
•
Do not enable L2PT on a port that is going to join a service loopback group.
•
LACP and EOAM require point-to-point transmission. If you enable L2PT for LACP or EOAM,
L2PT multicasts LACP or EOAM packets out of customer-facing ports. As a result, the
Enabling L2PT
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