Brocade Network Advisor SAN User Manual v12.1.0 User Manual

Page 985

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Brocade Network Advisor SAN User Manual

937

53-1002948-01

Spanning Tree Protocol configuration

26

3. Select the target switch, VLAN, or port from the Target Context list.

4. Select MSTP from the Spanning Tree list.

The products on which the VLAN is configured appear on the STP Configuration dialog box
(

Figure 409

).

FIGURE 409

STP Configuration dialog box (with MSTP selected)

5. Select the Enable check box if you want to enable MSTP.

6. Enter a value in the Priority field to identify the root bridge in a spanning tree (instance of

MSTP). The bridge with the lowest value has the highest priority and is the root. A higher
numerical value means a lower priority; thus, the highest priority is 0. The values range from 0
through 61440. The default is 32768.

7. Enter the number of seconds a bridge waits (the listen and learn period) before it begins to

forward data packets in the Forward Delay field. The values range from 4 through 30 seconds.
The default is 15 seconds.

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 ranges from 0

through 255. The default is 0.

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

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