User manual ZYXEL ES-3124

[. . . ] ES-3124 Series Intelligent Layer 2+ Switch User's Guide Version 3. 70 Edition 2 4/2007 ES-3124 Series User's Guide Copyright Copyright © 2007 by ZyXEL Communications Corporation. The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into any language, or transmitted in any form or by any means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without the prior written permission of ZyXEL Communications Corporation. All rights reserved. Disclaimer ZyXEL does not assume any liability arising out of the application or use of any products, or software described herein. Neither does it convey any license under its patent rights nor the patent rights of others. [. . . ] Use this screen to select a monitor port and specify the traffic flow to be copied to the monitor port. Chapter 14 Mirroring 135 ES-3124 Series User's Guide Figure 62 Mirroring 136 Chapter 14 Mirroring ES-3124 Series User's Guide The following table describes the labels in this screen. Table 32 Mirroring LABEL Active Monitor Port Port * DESCRIPTION Select this check box to activate port mirroring on the switch. The monitor port is the port you copy the traffic to in order to examine it in more detail without interfering with the traffic flow on the original port(s). Use this row only if you want to make some settings the same for all ports. Use this row first to set the common settings and then make adjustments on a port-by-port basis. Note: Changes in this row are copied to all the ports as soon as you make them. Mirrored Direction Apply Select this option to mirror the traffic on a port. Specify the direction of the traffic to mirror by selecting from the drop-down list box. Click Apply to save your changes to the switch's run-time memory. The switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring. Click Cancel to reset the fields. Cancel Chapter 14 Mirroring 137 ES-3124 Series User's Guide 138 Chapter 14 Mirroring ES-3124 Series User's Guide CHAPT E R 1 5 Link Aggregation This chapter shows you how to logically aggregate physical links to form one logical, higherbandwidth link. 15. 1 Link Aggregation Overview Link aggregation (trunking) is the grouping of physical ports into one logical higher-capacity link. You may want to trunk ports if for example, it is cheaper to use multiple lower-speed links than to under-utilize a high-speed, but more costly, single-port link. However, the more ports you aggregate then the fewer available ports you have. The beginning port of each trunk group must be physically connected to form a trunk group. 15. 2 Dynamic Link Aggregation The switch adheres to the IEEE 802. 3ad standard for static and dynamic (LACP) port trunking. This standard describes the Link Aggregate Control Protocol (LACP), which is a protocol that dynamically creates and manages trunk groups. When you enable LACP link aggregation on a port, the port can automatically negotiate with the ports at the remote end of a link to establish trunk groups. LACP also allows port redundancy, that is, if an operational port fails, then one of the "standby" ports become operational without user intervention. Please note that: · You must connect all ports point-to-point to the same Ethernet switch and configure the ports for LACP trunking. · All ports in the same trunk group must have the same media type, speed, duplex mode and flow control settings. Configure trunk groups or LACP before you connect the Ethernet switch to avoid causing network topology loops. Chapter 15 Link Aggregation 139 ES-3124 Series User's Guide 15. 2. 1 Link Aggregation ID LACP aggregation ID consists of the following information1: Table 33 Link Aggregation ID: Local Switch SYSTEM PRIORITY MAC ADDRESS 0000 00-00-00-00-00 KEY 0000 PORT PRIORITY 00 PORT NUMBER 0000 Table 34 Link Aggregation ID: Peer Switch SYSTEM PRIORITY MAC ADDRESS 0000 00-00-00-00-00 KEY 0000 PORT PRIORITY 00 PORT NUMBER 0000 15. 3 Link Aggregation Control Protocol Status Click Advanced Application, Link Aggregation in the navigation panel. The Link Aggregation Control Protocol Status screen displays by default. See Section 15. 1 on page 139 for more information. Figure 63 Link Aggregation Control Protocol Status 1. Port Priority and Port Number are 0 as it is the aggregator ID for the trunk group, not the individual port. 140 Chapter 15 Link Aggregation ES-3124 Series User's Guide The following table describes the labels in this screen. Table 35 Link Aggregation Control Protocol Status LABEL Index Aggregator ID DESCRIPTION This field displays the trunk ID to identify a trunk group, that is, one logical link containing multiple ports. Link Aggregator ID consists of the following: system priority, MAC address, key, port priority and port number. Refer to Section 15. 2. 1 on page 140 for more information on this field. These are the ports you have configured in the Link Aggregation screen to be in the trunk group. [. . . ] To make two networks, divide the network 192. 168. 1. 0 into two separate subnets by converting one of the host ID bits of the IP address to a network number bit. The "borrowed" host ID bit can be either "0" or "1" thus giving two subnets; 192. 168. 1. 0 with mask 255. 255. 255. 128 and 192. 168. 1. 128 with mask 255. 255. 255. 128. Note: In the following charts, shaded/bolded last octet bit values indicate host ID bits "borrowed" to make network ID bits. The number of "borrowed" host ID bits determines the number of subnets you can have. [. . . ]