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| Migrate |
| Setting this parameter as Yes will set the ports to send out BPDU packets to other |
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| bridges, requesting information on their STP setting If the Switch is configured for RSTP, |
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| the port will be capable to migrate from 802.1D STP to 802.1w RSTP. Migration should be |
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| set as yes on ports connected to network stations or segments that are capable of being |
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| upgraded to 802.1w RSTP on all or some portion of the segment. |
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| Edge |
| Choosing the True parameter designates the port as an edge port. Edge ports cannot |
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| create loops, however an edge port can lose edge port status if a topology change creates |
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| a potential for a loop. An edge port normally should not receive BPDU packets. If a BPDU |
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| packet is received, it automatically loses edge port status. Choosing the Auto parameter |
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| will indicate that the port will be able to automatically enable edge port status if needed. |
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| P2P |
| Choosing the True parameter indicates a |
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| similar to edge ports, however they are restricted in that a P2P port must operate in full- |
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| duplex. Like edge ports, P2P ports transition to a forwarding state rapidly thus benefiting |
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| from RSTP. A p2p value of false indicates that the port cannot have p2p status. Auto |
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| allows the port to have p2p status whenever possible and operate as if the p2p status |
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| were true. If the port cannot maintain this status, (for example if the port is forced to half- |
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| duplex operation) the p2p status changes to operate as if the p2p value were False. The |
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| default setting for this parameter is True. The default value True is equivalent to the Auto |
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| value. |
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| Port STP |
| Allows STP to be Enabled or Disabled for the ports. |
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| Restricted Role |
| Toggle between True and False to set whether this port is restricted to be selected as a |
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| root port. The default value is False. |
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| Restricted TCN |
| Toggle between True and False to set whether this port is restricted to be selected as a |
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| propagate topology change. The default value is False. |
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| Forward BPDU |
| This field can be Enabled or Disabled. When Enabled, it allows the forwarding of STP |
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| BPDU packets from other network devices. The default is Enabled. |
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Click Apply to implement changes made.
MST Configuration Identification
The following windows in the MST Configuration Identification section allow the user to configure a MSTI instance on the Switch. These settings will uniquely identify a multiple spanning tree instance set on the Switch. The Switch initially possesses one CIST or Common Internal Spanning Tree of which the user may modify the parameters for but cannot change the MSTI ID for, and cannot be deleted.
To view this window, click L2 Features > Spanning Tree > MST Configuration Identification as shown below:
Figure 3 - 59 MST Configuration Identification window
The window above contains the following information:
112
