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S12700 V200R011C10 Configuration Guide - VPN

This document describes the VPN configuration procedures and provides configuration examples.
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Building a Virtual Layer 2 Network Using Ethernet over GRE

Building a Virtual Layer 2 Network Using Ethernet over GRE

In Figure 1-10, SwitchA connects to a branch Ethernet and SwitchB connects to a headquarters Ethernet. The headquarters and branch communicate over the IP/MPLS backbone network. The customer wants to transparently transmit Ethernet packets over a GRE tunnel, implementing Layer 2 communication between the headquarters and branch.

Figure 1-10  Ethernet over GRE application

To implement Layer 2 communication between the headquarters and branch, you can configure Ethernet over GRE on SwitchA and SwitchB. Create VE interfaces on SwitchA and SwitchB, add them to a VLAN, and bind them to a GRE tunnel. The VE interface sends Ethernet packets from the specified VLAN to the GRE tunnel, implementing Layer 2 communication between the headquarters and branch.

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Updated: 2019-04-01

Document ID: EDOC1000178118

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