Cabletron Systems ELS10-26TX 用户手册

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Configuring Your ELS10-26
3-7
You could also type 
bridge [PORT-RANGE] 
to look at a specific 
range of ports. For example 
bridge 2-4 
would display bridging 
functions for ports 2, 3, and 4.
3.5  ENABLING TRUNKING
If your network configuration requires you to connect two or more 
ELS10-26s (or other devices capable of trunking) together, but the 
applications you are running over the network require more than 
10 Mbps of bandwidth per connection, you can use the built-in 
trunking feature to increase bandwidth up to 160 Mbps, or              
400 Mbps using 100Base ports, without installing additional 
hardware on your network.
Trunking is a Cabletron Systems proprietary extension to the 
802.1D Spanning Tree algorithm. It enables you to use multiple 
10BASE-T Ethernet segments to connect ELS10-26s together, while 
maintaining first-in, first-out ordering of Ethernet packets. In 
addition, if any of the Ethernet segments configured for trunking 
become inoperable, those Ethernet segments are automatically 
bypassed.
Figure 3-1 shows two ELS10-26s connected by four 10BASE-T 
crossover cables. You can connect up to eight ports for sharing the 
traffic load. Any additional connected ports will become standby 
ports. The connections must be point-to-point. That is, there 
cannot be any other devices on the Ethernet segments.
Port 1 bridging: Transparent Bridging
Port 2 bridging: Transparent Bridging
Port 3 bridging: Transparent Bridging
.
.
Port 27 bridging: off
Usage: bridge [PORT-RANGE [{off|on|noBPDU{]]
Port 4 bridging: Transparent Bridging
.