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AR500, AR510, and AR530 V200R007 CLI-based Configuration Guide - Ethernet Switching

This document describes the configuration of Ethernet services, including configuring transparent bridge, MAC table, link aggregation, VLANs, STP/RSTP/MSTP, and so on.The document provides the configuration procedures and configuration examples to illustrate the service configuration methods and application scenario.
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Remote Bridging

Remote Bridging

If LANs in different geographical locations need to communicate with each other at the link layer, remote bridging can be used to bridge the LANs.

Figure 15-6  Networking diagram for remote bridging

As shown in Figure 15-6, Router A and Router B are connected with each other over a network. PC2, PC4, PC5, and PC7 belong to four different LANs (LAN 2, LAN 1, LAN 4, LAN 3) on different network segments. LAN 1 needs to communicate with LAN 3, and LAN 2 with LAN 4.

Bridges 1 and 2 are created on Router A and Router B, respectively.Ethernet2/0/1 and Serial 1/0/0 on both Router A and Router B are added to bridge 1; Ethernet2/0/2 and Serial 1/0/1 on both Router A and Router B are added to bridge 2. In this manner, the preceding communication requirement can be met.

Other types of links, such as Ethernet, Point-to-Point Protocol (PPP), Asynchronous Transfer Mode (ATM), can also be used for remote bridging.

To support remote bridging, transparent bridging provides the following functions:

  • Allow Ethernet interfaces, Ethernet sub-interfaces, VLANIF, Serial, Serial sub-interfaces, VT, Dialer interfaces to be added to bridge groups.

  • Link encapsulation protocols such as Ethernet, PPP, PPPoA, PPPoE and PPPoEoA.

  • 802.1Q VLAN ID transparent transmission.

  • Bridging IP and non-IP packets.

Updated: 2019-05-25

Document ID: EDOC1000097279

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