[. . . ] Modularized 24+2G Switch 3/2004 519021 Modularized 24+2G Access Switch COPYRIGHT All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, whether electronic, mechanical, photo copying, recording or otherwise, without the prior written permission of the publisher. FCC WARNING This equipment has been tested and found to comply with the limits for class A device, pursuant to part 15 of FCC rules. These limits are designed to provide reasonable protection against harmful interference in a commercial installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communication. [. . . ] Configure port VID settings From the Main Tag-based VLAN page, click [Port VID] (shown on the insert to the right) to enter the Port VID Settings menu. 27 28 Modularized 24+2G Switch Modularized 24+2G Switch Rule 1: Forward only packets with VID matching this port's configured VID. By default, only the packets with VID matching this port's configured VID can pass the port. You can view spanning tree status about the Switch from the following screen. 2-5-8. Spanning Tree The Spanning Tree Protocol (STP) is a standardized method (IEEE 802. 1D) for avoiding loops in switched networks. When STP is enabled, it ensures that only one path at a time is active between any two nodes on the network. You can enable Spanning Tree Protocol on web management's switch setting advanced item, select enable Spanning Tree protocol. We recommend that you enable STP on all switches to ensure that only a single active path on the network exists. From the Spanning Tree Configuration Menu (shown below), you can create a new value for the STP parameter, then click the Apply button to set it. You can view spanning tree information the Root Bridge from the same screen. Parameter Priority Max Age Description You can change priority value, A value used to identify the root bridge. The bridge with the lowest value has the highest priority and is selected as the root. Age value, the number of seconds a bridge waits without receiving Spanning Tree Protocol configuration messages before attempting a reconfiguration. Enter a time in seconds from 6 through to 40. 29 30 Modularized 24+2G Switch Modularized 24+2G Switch Hello Time You can change the Hello time value, the number of seconds between the transmissions of Spanning Tree Protocol configuration messages. Enter a time in seconds from 1 through to 10. Path Cost Forward Delay time You can change forward delay time, The number of seconds a port waits before changing from its Spanning Tree Protocol learning and listening states to the forwarding status. From the Spanning Tree Configuration Menu, click PerPort Configuration to configure STP parameters on each port, click on the Apply button to set it. Specifies the path cost of the port. The Switch uses this to determine which port are the forwarding ports. The range is between 1 and 65535 and the default value base on IEEE802. 1D are: 10Mb/s = 50-600 100Mb/s = 10-60 1000Mb/s = 3-10 2-5-9. Port Mirroring Port Mirroring is a method to monitor traffic in switched networks. That is, traffic going in or out monitored ports will be duplicated to a mirror port. Roving Analysis State: Roving analysis is the mirroring of Fast Ethernet port traffic to another port of the same media type within a system that has an RMON probe or analyzer attached. This port allows external RMON probes (network analyzers) to monitor traffic on any switched segment. You can monitor a designated roving analysis port to: Analyze traffic loads on each segment so that you can continually optimize your network loads by moving network segments, or troubleshoot switched network problems (for example, to find out why a particular segment has so much traffic) Parameter Port Priority Description You can make the port more or less likely in becoming the root port. 31 32 Modularized 24+2G Switch Modularized 24+2G Switch Analysis Port: You can have as many as 16 network analyzers connected to a system. For more accurate analysis, attach the analyzer to a dedicated port instead of through a repeater. [. . . ] That a laptop on either VLANs 254. 176. 102. 3 can see the rest of the network(s). Internet v102 v176 v2 Router SW1 IP: 137. 92. 254. 10 1 3 5 7 9 11 13 15 17 19 21 23 25 2 4 6 8 10 12 14 16 18 20 22 24 26 untag-frame v102 v176 v2 Router untag-frame tag frame vid 254, 176, 102, 2 tag-frame IP: 137. 92. 254. x /24 PC 101 Port 25, 26 are members of VLAN v254, v176, v102 and v2 SW1 IP: 137. 92. 254. 10 1 3 5 7 9 11 13 15 17 19 21 23 tag frame vid 254, 176, 102, 2 tag-frame 25 2 4 6 8 10 12 14 16 18 20 22 24 26 Port 25, 26 are members of VLAN v254, v176, v102 and v2 v176 v102 v2 VLAN define Name VID 254 176 102 2 PC 101 PC 102 PC 103 PC 104 tag frame vid 254, 176, 102, 2 Color SW2 IP: 137. 92. 254. 11 2 4 6 8 10 12 14 16 18 20 22 24 25 26 v254 v176 v102 v2 v176 v102 v2 1 3 5 7 9 11 13 15 17 19 21 23 VLAN define Name VID 254 176 102 2 PC 201 Color SW2 IP: 137. 92. 254. 11 untag-frame 2 4 6 8 10 12 14 16 18 20 22 24 25 26 v254 v176 Port 25, 26 are members of VLAN v254, v176, v102 and v2 untag-frame Port 25, 26 are members of VLAN v254, v176, v102 and v2 1 3 5 7 9 11 13 15 17 19 21 23 v102 v2 IP: 137. 92. 254. x /24 untag-frame Figure 2. Communications between PC101 & PC201 with tagged-VLAN. PC 201 PC 202 PC 203 PC 204 PC 205 Figure 1. 802. 1Q Tag-VLAN example 101 102 Modularized 24+2G Switch Modularized 24+2G Switch Switch Configuration SW1 Configuration Steps ­ using menu-driven Step 1. Configure PVID VLAN configuration: please refer to "VLAN Configuration Table" [Switch Static Configuration] [VLAN Configuration] [VLAN Configure] Select VLAN mode (802. 1Q) PVID cofiguration : please refer to "PVID Configuration Table" PVID Configuration Table Port # PVID 176 1~6 102 7~10 2 13~18 254 25, 26 1 (default) 11, 12, 19~24 VLAN Config. [. . . ]