Brocade Communications Systems Brocade 8/12c User Manual page 781

3. Select the target switch, VLAN, or port from the Target Context list.
4. Specify the following information:
5. Click OK to launch the Deploy STP dialog box.
Brocade Network Advisor SAN User Manual
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FIGURE 338
STP/RSTP Configuration dialog box
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Select STP or RSTP from the Spanning Tree list.
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Select the Enable check box if you want to enable the protocol you selected.
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Enter a value in the Priority field to identify the root bridge in a spanning tree (instance of
STP). 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 65535. The default is 32768.
•
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.
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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.
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Enter the number of seconds a bridge waits for a hello packet from the root bridge before
initiating a topology change in the Maximum Age field. The values range from 6 through 40
seconds. The default is 20 seconds.
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The Force Version list is available only if you selected RSTP. This parameter forces the
bridge to send BPDUs in a specific format. You can enter one of the following values:
0: The bridge has been forced to operate in an STP compatibility mode.

2: The bridge has been forced to operate in an 802.1W mode. (This is the default.)

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Enter a cost in the Path Cost field, which is the cost of using the port to reach the root
bridge. When selecting among multiple links to the root bridge, STP chooses the link with
the lowest path cost and blocks the other paths. Each port type has its own default STP
path cost.
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Enter the preference in the Port Priority field that STP gives to this port relative to other
ports for forwarding traffic out of the spanning tree. A higher numerical value means a
lower priority; thus, the highest priority is 0. The values range from 0 through 240. The
default is 128.
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Click the right arrow button to move the selected product to the Selected VLANs list.
Spanning Tree Protocol Configuration
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