TP-Link T2600G-28MPS T2600G-28MPSUN V1 User Guide - Page 76

L2PT

Page 76 highlights

 VLAN Security Table Select: VLAN ID: Select the desired entry to delete the corresponding VLAN security entry. It's multi-optional. Displays the VLAN ID of the VLAN security entry. Max Learned MAC: Learned Number: Displays the max learned MAC number of VLAN security entry. Displays the learned MAC number of VLAN security entry. Mode: Operation: Displays the mode of the vlan security entry. Click to edit the max learned MAC and the mode. 5.5 L2PT L2PT (Layer 2 Protocol Tunneling) is a feature for service providers to transmit packets from different customers across their ISP networks and maintain Layer 2 protocol configurations of each customer. The supported Layer 2 protocols are STP (Spanning Tree Protocol), GVRP (GARP VLAN Registration Protocol), CDP (Cisco Discovery Protocol), VTP (VLAN Trunking Protocol), PAgP (Port Aggregation Protocol), UDLD (UniDirectional Link Detection) and PVST+(Per VLAN Spanning Tree Plus). When L2PT is enabled and the switch receives the specified Layer 2 protocol packets from the UNI port, the switch encapsulates these packets with a special MAC address and sends them across the service-provider network through the NNI port. The devices in the ISP network do not process these packets but forward them as normal packets. The switch on the outbound side of the ISP network receives these packets on its NNI port and restore their MAC address to their original Layer 2 protocol destination MAC address. The L2PT protocol is usually used with VLAN VPN feature. Thus the NNI ports that connecting to the ISP network are configured as VPN Up-link ports. Figure 5-1 A Typical L2PT Topology 65

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VLAN Security Table
Select:
Select the desired entry to delete the corresponding VLAN security
entry. It's multi-optional.
VLAN ID:
Displays the VLAN ID of the VLAN security entry.
Max Learned
MAC:
Displays the max learned MAC number of VLAN security entry.
Learned Number:
Displays the learned MAC number of VLAN security entry.
Mode:
Displays the mode of the vlan security entry.
Operation:
Click to edit the max learned MAC and the mode.
5.5 L2PT
L2PT (Layer 2 Protocol Tunneling) is a feature for service providers to transmit packets from
different customers across their ISP networks and maintain Layer 2 protocol configurations of
each customer. The supported Layer 2 protocols are STP (Spanning Tree Protocol), GVRP (GARP
VLAN Registration Protocol), CDP (Cisco Discovery Protocol), VTP (VLAN Trunking Protocol),
PAgP (Port Aggregation Protocol), UDLD (UniDirectional Link Detection) and PVST+(Per VLAN
Spanning Tree Plus).
When L2PT is enabled and the switch receives the specified Layer 2 protocol packets from the
UNI port, the switch encapsulates these packets with a special MAC address and sends them
across the service-provider network through the NNI port. The devices in the ISP network do not
process these packets but forward them as normal packets. The switch on the outbound side of
the ISP network receives these packets on its NNI port and restore their MAC address to their
original Layer 2 protocol destination MAC address.
The L2PT protocol is usually used with VLAN VPN feature. Thus the NNI ports that connecting to
the ISP network are configured as VPN Up-link ports.
Figure 5-1 A Typical L2PT Topology
65