ZyXEL NetAtlas User Guide - Page 176

Chapter 14 Switch Configuration Table 85 Switch Configuration > Broadcast Storm Control (continued) LABEL DESCRIPTION Copy to... Click the Copy to.. button to copy the configuration from the device that you are currently configuring to the port(s) on the same device or the port(s) on other device(s) of the same model. Close Click Close to exit this screen. 14.5 STP (Rapid) Spanning Tree Protocol ((R)STP) detects and breaks network loops and provides backup links between switches, bridges or routers. It allows a device to interact with other (R)STP-aware devices in your network to ensure that only one path exists between any two stations on the network. Refer to the user's guide that comes with your switch for more information. 14.5.1 Multiple RSTP Multiple RSTP (MRSTP) is ZyXEL's proprietary feature that is compatible with RSTP and STP. With MRSTP, you can have more than one spanning tree on your EMS and assign port(s) to each tree. Each spanning tree operates independently with its own bridge information. 14.5.2 Multiple STP Multiple Spanning Tree Protocol (MSTP, IEEE 802.1s) is backward compatible with STP/RSTP and addresses the limitations of existing spanning tree protocols (STP and RSTP) in networks to include the following features: • One Common and Internal Spanning Tree (CIST) that represents the entire network's connectivity. • Grouping of multiple bridges (or switching devices) into regions that appear as one single bridge on the network. • A VLAN can be mapped to a specific Multiple Spanning Tree Instance (MSTI). MSTI allows multiple VLANs to use the same spanning tree. • Load-balancing is possible as traffic from different VLANs can use distinct paths in a region. 14.5.3 STP Configuration Use the STP screen to configure STP settings on the switch. 176 NetAtlas EPON Manager User's Guide