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TECHNICAL SUPPORT NOTE

NetVanta 3000 Series Routers

Bridging (Point-to-Point & Multipoint)

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Introduction

Bridging is an OSI Model Layer 2 function. Bridges and switches are often talked about

interchangeably because both of these devices work at the Data Link Layer. Bridges are a step

above a network device called a hub. A hub operates at the Physical Layer, connecting one or

more network devices on the LAN, sharing bandwidth or acting as a termination point for multiple

network devices in a star topology. A bridge is a LAN (Local Bridge) or WAN (Remote Bridge)

device that interconnects network segments and uses the destination MAC address of each frame

of information to determine whether to pass the signal to the other network segment. Bridges can

be used to connect network segments of dissimilar media, extend the number of hosts allowed on

a single segment, or segment data traffic to reduce overall bandwidth usage.

A bridge keeps a forwarding table, which is a list of MAC (or Layer 2) addresses with their

associated interface. If the bridge does not have an entry for a destination address that comes

across, the packet is forwarded to all attached interfaces. All broadcast and multicast packets are

forwarded to all interfaces (flooded).

Care should be used in deciding when to use a bridge. In general, it is only wise to bridge data

that cannot be routed. The NetVanta 3000 Router can route IP while bridging all other protocols.

Local Bridge

Remote Bridge – Like the NetVantas

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☛ Before You Begin

Before configuring and testing a bridging application, verify that the point-to-point network

connection is installed and operational. All cables necessary for network connection installation

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Resumo do Conteúdo

Página 1 - ☛ Before You Begin

TECHNICAL SUPPORT NOTE NetVanta 3000 Series Routers Bridging (Point-to-Point & Multipoint) ___________________________________________________

Página 2 - Atlanta

Bridging: NetVanta 3000 Series Routers Page 2 are provided with your NetVanta shipment. Obtain the correct IP Addresses for the Ethernet interfaces f

Página 3

Bridging: NetVanta 3000 Series Routers Page 3 Configuring Point-to-Point Bridging Log into the router via the craft port and enter the enable (privi

Página 4 - Please ensure this is uni

Bridging: NetVanta 3000 Series Routers Page 4 Assigning a PPP Sub-Interface to Bridge Group 1 3. If you are bridging and do not wish to route I

Página 5

Bridging: NetVanta 3000 Series Routers Page 5 5. Frame-Relay Multipoint – Multipoint bridging applications are useful for two remote offices that

Página 6

Bridging: NetVanta 3000 Series Routers Page 6 Troubleshooting the Application If workstations at one end of the link cannot access workstations on t

Página 7 - Completing the Application

Bridging: NetVanta 3000 Series Routers Page 7 Completing the Application Configure the remote end NetVanta 3000 Series Router similarly to the local

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Adtran NetVanta 3000 Series Manual do Utilizador

Consulte online ou descarregue Manual do Utilizador para Hardware Adtran NetVanta 3000 Series. ADTRAN NetVanta 3000 Series User Manual Manual do Utilizador

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