Configuring Stp - 3Com 3CBLSF26PWRH User Manual

Figure 3-33 LACP Summary Page
The LACP Summary Page contains the following fields:
Table 3-24 LACP Summary Page item description
Item
Port-Priority
LACP Timeout
Group ID

Configuring STP

STP (Spanning Tree Protocol) is a bridge-based system for providing fault tolerance on networks and
can be used to detect and disable network loops. The spanning tree ensures that the optimal path is
maintained between spanning tree-compliant networked devices by:
Disabling redundant paths when the main paths are operational.
Enabling redundant paths if the main paths fail.
Spanning tree uses a distributed algorithm to select a bridging device that serves as the root of the
spanning tree network.
The bridging device, known as the Root Bridge, generates bridge protocol data units (BPDUs) on all
ports at a regular interval known as the Hello Time. All other spanning tree-compliant devices on the
network have a designated Root Port. This is the Port nearest the Root Bridge and it is used for
receiving the BPDUs initiated by the Root Bridge. If a bridge does not get a Hello BPDU after a
predetermined interval, the bridge assumes that the link to the Root Bridge is down. This bridge will then
initiate negotiations with other bridges to reconfigure the network to reestablish a valid network
topology.
After all the bridges on the network have determined the configuration of their ports, each bridge only
forwards traffic between the Root Port and the ports that are the Designated Bridge Ports for each
Displays the LACP priority value for the port.
Displays the administrative LACP timeout. The possible field values are:
Long: Specifies the long timeout value. This is the default.
Short: Specifies the short timeout value.
Display LAG ID which the port belongs to. N/A: unassigned.
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Description