Enterasys Networks Fast Network 10 manual Disabling Trunking

Disabling Trunking

To enable trunking for the example shown, you would:

1.Connect the desired ports of the FN10s together using 10BASE-T crossover cables.

If FN10 A is handling only a small number of users, the A to B Trunk Group could have just two ports per FN10. If FN10 B and C are expected to interconnect many users, you could use up to eight ports in the B to C Trunk Group.

2.Using LCM, turn on trunking for the connected ports on each FN10. For FN10 A, at the LCM prompt:

a. Type trunk 2,3 on

For FN10 B, at the LCM prompt:

b.Type trunk 3-10,14-15 on

For FN10 C, at the LCM prompt:

c.Type trunk 3-10 on

Each FN10 automatically determines which ports are part of which Trunk Group. After Trunk Group configuration, the FN10s complete the standard 802.1D Spanning Tree state changes, treating each Trunk Group as a single 802.1D Spanning Tree port.

802.1D Spanning Tree takes about thirty seconds to resolve which FN10 ports are to become forwarding ports. As ports within a Trunk Group become forwarding ports, traffic within the Trunk Group is momentarily halted to guarantee the first-in, first-out ordering of the Ethernet packets.

NOTE

The FN10-to-FN10 connections must be point-to-point. There cannot be any other devices on those Ethernets. The ports used for trunking can be in any order. However, both ends of the FN10-to-FN10 connections must have trunking turned on for the ports that are being used for the connections.

3.6 DISABLING TRUNKING

To turn off trunking, at the LCM prompt:

Fast Network 10 User Guide Page 3-9