Dual LAN Ethernet

Dual LAN Ethernet

What Is It?The Dual LAN Ethernet feature lets your PathBuilder S24x, 26x, and 27x switch support up to two Ethernet LAN interfaces to perform bridging and routing of LAN traffic across multiple LANs.

Before Multiple Ethernet LAN, the PathBuilder S24x, 26x, and 27x switch supported only one Ethernet LAN port for remote bridging and routing of LAN traffic. However, with the Multiple Ethernet LAN feature, you can bridge and route LAN traffic locally and remotely using up to two LAN ports on each PathBuilder S24x, 26x, and 27x switch, as shown in Figure 55.

Note

It is recommended that you configure the first LAN card in your device as Bridge Link Number 1 or Router Interface Number 1. Failure to do so may cause your device to perform continuous resets when you power up the device after reinstalling an earlier release of operating software.

Sample Application Figure 55 shows a sample application for the Multiple Ethernet LAN feature.

Ethernet 1

Port 13

PB S200

Port 19

Ethernet 2

WAN

Ethernet 1

PB S200

Ethernet 2

 

Figure 55. Example of Multiple Ethernet LAN

Limitations

 

The PathBuilder S24x, 26x, and 27x switch supports only two Ethernet LAN ports at

 

one time. If you configure more than two Ethernet ports on a PathBuilder S24x, 26x,

 

and 27x switch, the system initializes only the first two ports you configure during

 

system powerup.

Bridging

 

In a Transparent Bridging environment, if you connect both Ethernet LAN ports to

 

the same Ethernet segment, you must enable Spanning Tree. Failure to enable

 

Spanning Tree in this configuration is a violation of the rules of Transparent

 

Bridging.

Bridging

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T0008-16F

Release 5.2M

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EXP Computer S200 manual Dual LAN Ethernet, System powerup