Dell 3548 manual Lag

•BPDU Handling — Determines how Bridge Protocol Data Unit (BPDU) packets are managed when STP is disabled on the port/ device. BPDUs are used to transmit spanning tree information.

The possible field values are:

–Filtering — Filters BPDU packets when spanning tree is disabled on an interface. This is the default value.

–Flooding — Floods BPDU packets when spanning tree is disabled on an interface.

•Path Cost Default Values — Specifies the method used to assign default path costs to STP ports. The possible field values are:

–Short — Specifies 1 through 65,535 range for port path costs. This is the default value.

–Long — Specifies 1 through 200,000,000 range for port path costs.

The default path costs assigned to an interface vary according to the selected method:

Interface	Long	Short
LAG	20,000	4
1000 Mbps	20,000	4
100 Mbps	200,000	19
10 Mbps	2,000,000	100

Bridge Settings

•Priority (0-61440 in steps of 4096) — Specifies the bridge priority value. When switches or bridges are running STP, each is assigned a priority. After exchanging BPDUs, the device with the lowest priority value becomes the Root Bridge. The default value is 32768. The port priority value is provided in increments of 4096. For example, 4096, 8192, 12288, etc.

•Hello Time (1-10) — Specifies the device Hello Time. The Hello Time indicates the amount of time in seconds a root bridge waits between configuration messages. The default is 2 seconds.

•Max Age (6-40) — Specifies the device Maximum Age Time. The Maximum Age Time indicates the amount of time in seconds a bridge waits before sending configuration messages. The default max age is 20 seconds.

•Forward Delay (4-30) — Specifies the device forward delay time. The Forward Delay Time indicates the amount of time in seconds a bridge remains in a listening and learning state before forwarding packets. The default is 15 seconds.

Designated Root

•Bridge ID — Identifies the Bridge priority and MAC address.

•Root Bridge ID — Identifies the Root Bridge priority and MAC address.

•Root Port — Indicates the port number that offers the lowest cost path from this bridge to the Root Bridge. It is significant when the Bridge is not the Root.

Configuring Switch Information

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