PLANET XGS3-24040 - Manual (Page 86)

Chapter 7 Port Configuration
7-4
Switch3:
Switch3(config)#interface ethernet 1/12
Switch3(Config-If-Ethernet1/12)#speed-duplex force1000-full
Switch3(Config-If-Ethernet1/12)#exit
7.4 Port Troubleshooting
Here are some situations that frequently occurs in port configuration and the advised solutions:
 Two connected fiber interfaces won’t link up if one interface is set to auto-negotiation but the other to
forced speed/duplex. This is determined by IEEE 802.3.
 The following combinations are not recommended: enabling traffic control as well as setting multicast
limiting for the same port; setting broadcast, multicast and unknown destination unicast control as well
as port bandwidth limiting for the same port. If such combinations are set, the port throughput may fall
below the expected performance.