Brocade Communications Systems IP250 user manual Assigning an Mstp instance to a Vlan

Spanning Tree Protocol configuration 27

8.Enter the number of seconds a root bridge waits before it sends the next BPDU in the Hello Time field. The values range from 1 through 10 seconds. The default is 2 seconds.

9.Enter the number of seconds a bridge waits for a hello packet from the root bridge before initiating a topology change in the Max Age field. The values range from 6 through 40 seconds. The default is 20 seconds.

10.Enter the interval after which the port will be enabled in the Re-enable Port Interval field. The value ranges from 10 through 1000000. The default is 300.

11.Click the Re-enable Port State check box to enable the timeout mechanism for the port.

12.Select the Path Cost behavior option (Standard or Custom).

13.Specify the number of hops in a region before the Bridge Protocol Data Units (BPDUs) are discarded and the information held for a port is aged in the Max Hops field. The hop count determines when to trigger a reconfiguration. The value ranges from 1 through 40. The default is 20.

14.Enter MSTP in the Region field.

15.Enter the revision number for the configuration in the Revision field. The values range from 0 through 255. The default is 0.

16.Click OK to launch the Deploy STP dialog box.

Assigning an MSTP instance to a VLAN

NOTE

For Network OS products in standalone mode, you can configure from 1 through 31 MSTP instances and for Fabric OS DCB switches, you can configure from 1 through 15 MSTP instances; for the Fabric OS converged 10 GbE switch module for the IBM BladeCenter, you can configure from 1 through 31 MSTP instances.

1.Click the STP button on the VLAN Manager dialog box to display the STP Configuration dialog box.

2.Select a VLAN node (in this example, a FOS node) in the Selected VLANs list, and click the left arrow button.

The target is automatically set to FOS VLAN in the Target Context list.

3.Select MSTP from the Spanning Tree list.

The STP Configuration dialog box displays the Available MSTP Instances list.

4.Select one instance from the Available MSTP Instances list and, using the right arrow button, assign it to a VLAN in the Selected VLANs list.

Adding an MSTP instance

1.Click the STP button on the VLAN Manager dialog box to display the STP Configuration dialog box.

2.Select a VLAN node (in this example, a FOS node) in the Selected VLANs list, and click the left arrow button.

The target is automatically set to FOS VLAN in the Target Context list.

3.Select MSTP from the Spanning Tree list.

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