3Com 3CBLSF26PWRH User Manual

Also see for 2226-SFP Plus: Installation and user guide

Contents

3-29Figure 3-33 LACP Summary PageThe LACP Summary Page contains the following fields:Table 3-24 LACP Summary Page item descriptionItem DescriptionPort-Priority Displays the LACP priority value for the port.LACP TimeoutDisplays the administrative LACP timeout. The possible field values are:z Long: Specifies the long timeout value. This is the default.z Short: Specifies the short timeout value.Group ID Display LAG ID which the port belongs to. N/A: unassigned.Configuring STPSTP (Spanning Tree Protocol) is a bridge-based system for providing fault tolerance on networks andcan be used to detect and disable network loops. The spanning tree ensures that the optimal path ismaintained between spanning tree-compliant networked devices by:z Disabling redundant paths when the main paths are operational.z 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 thespanning tree network.The bridging device, known as the Root Bridge, generates bridge protocol data units (BPDUs) on allports at a regular interval known as the Hello Time. All other spanning tree-compliant devices on thenetwork have a designated Root Port. This is the Port nearest the Root Bridge and it is used forreceiving the BPDUs initiated by the Root Bridge. If a bridge does not get a Hello BPDU after apredetermined interval, the bridge assumes that the link to the Root Bridge is down. This bridge will theninitiate negotiations with other bridges to reconfigure the network to reestablish a valid networktopology.After all the bridges on the network have determined the configuration of their ports, each bridge onlyforwards traffic between the Root Port and the ports that are the Designated Bridge Ports for each