System information

Chapter 3. Ethernet switch interoperability 33
Figure 12. Trunk Config
From the navigation tree, we choose Trunking Port Management, to set up
TRUNK1, and add ports 1.9 and 1.10 to the trunk as shown in Figure 12. The
8275-322 switch does not support trunking on ports 1.5, 1.6, 1.7 and 1.8.
As all the ports are on the same VLAN, we can use the default configuration.
The recommendation for interconnection switches is to set the ports to fixed
values. Auto negotiation allows the port to match the speed and duplex
setting of the device to which it is connected. If you want to leave the ports in
both switches in their default mode, AUTO for speed and duplex, remember
that on some rare occasions the switches may not negotiate the best or
fastest connection. We do not change the default settings for this test to see if
the switches will negotiate the best connection parameters. Some switches
do not advertise the duplex mode if their speed is fixed. In a situation where