Dell PowerConnect 3048 User Manual page 38

Hello Time — The interval between configuration messages sent by the spanning tree protocol.
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Max Age — The amount of time before the system discards a configuration message.
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Forward Delay — The amount of time the system spends in learning and listening states.
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Bridge Priority — The priority setting among other switches in the spanning tree.
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Disable — Disables the spanning tree protocol on the system.
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Port Settings
In the Port Settings screen, you can specify spanning-tree parameters for each port. This screen is in a table format. For each port number listed under the
Port column, the following fields are available:
Priority — Priority assigned to this port for the Spanning Tree Protocol (0 - 255). A port with a higher priority is less likely to be blocked if the Spanning
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Tree Protocol is detecting network loops. Low numeric value indicates a high priority.
Cost — Cost assigned to this port for the Spanning Tree Protocol (1-65536). A port with a lower cost is less likely to be blocked if the Spanning Tree
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Protocol is detecting network loops.
FastLink — FastLink immediately enables the port in forwarding state when a link comes up. The port is not part of the spanning tree at that time, but
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will participate in future spanning tree resolutions.
NOTE: Fast Link is useful if a device is connected to a port that requires network access immediately when the link comes up and cannot wait for a
spanning tree resolution.
VLAN and CoS Setup
From the VLAN Management menu, you can configure up to 64 802.1Q VLANs.
VLANs allow PCs, workstations, and other resources, including printers and file servers, to be organized into logical, broadcast domains so that only devices
within the same domain can communicate with each other.
The VLAN Management screen shows the information regarding all configured VLANs. All ports of the switch are configured as untagged members in VLAN 1
with VLAN ID 1 by default. Users can create VLANs, delete VLANs, or reset the VLAN configuration back to default in this menu.
The VLAN and CoS Setup screen includes the following options:
VLAN Administration
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VLAN Membership
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PVID Settings
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