User manual ZYXEL ES-2108-G

[. . . ] ES-2108/ES-2108-G Ethernet Switch User's Guide Version 3. 60 10/2005 Edition 1 ES-2108/ES-2108-G User's Guide Copyright Copyright © 2005 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. [. . . ] Select Active to enable IGMP snooping have group multicast traffic only forwarded to ports that are members significantly reducing multicast traffic passing through your switch. This is how long all dynamically learned MAC addresses remain in the MAC address table before they age out (and must be relearned). Join Timer sets the duration of the Join Period timer for GVRP in milliseconds. The allowed Join Time range is between 100 and 65535 milliseconds; the default is 200 milliseconds. Leave Time sets the duration of the Leave Period timer for GVRP in milliseconds. Leave Time must be two times larger than Join Timer; the default is 600 milliseconds. Leave All Timer sets the duration of the Leave All Period timer for GVRP in milliseconds. Leave All Timer must be larger than Leave Timer; the default is 10000 milliseconds. IGMP Snooping MAC Address Learning Aging Time GARP Timer: Join Timer Leave Timer Leave All Timer Chapter 7 Basic Setting 61 ES-2108/ES-2108-G User's Guide Table 10 Switch Setup (continued) LABEL Priority Queue Assignment DESCRIPTION IEEE 802. 1p defines up to eight separate traffic types by inserting a tag into a MAClayer frame that contains bits to define class of service. Frames without an explicit priority tag are given the default priority of the ingress port. Use the next two fields to configure the priority level-to-physical queue mapping. The switch has four physical queues that you can map to the 8 priority levels. On the switch, traffic assigned to higher index queues gets through faster while traffic in lower index queues is dropped if the network is congested. (The following descriptions are based on the traffic types defined in the IEEE 802. 1d standard (which incorporates the 802. 1p). Typically used for network control traffic such as router configuration messages. Typically used for voice traffic that is especially sensitive to jitter (jitter is the variations in delay). Typically used for video that consumes high bandwidth and is sensitive to jitter. Typically used for controlled load, latency-sensitive traffic such as SNA (Systems Network Architecture) transactions. Typically used for "excellent effort" or better than best effort and would include important business traffic that can tolerate some delay. This is typically used for non-critical "background" traffic such as bulk transfers that are allowed but that should not affect other applications and users. Click Cancel to reset the fields to your previous configuration. Priority Level Level 7 Level 6 Level 5 Level 4 Level 3 Level 2 Level 1 Level 0 Apply Cancel 7. 7 IP Setup Use the IP Setup screen to configure the default gateway device, the default domain name server and add switch IP address. 7. 7. 1 Management IP Addresses The switch needs an IP address for it to be managed over the network. The subnet mask specifies the network number portion of an IP address. You can configure up to 64 IP addresses which are used to access and manage the switch from the ports belonging to the pre-defined VLAN(s). [. . . ] The number of "borrowed" host ID bits determines the number of subnets you can have. The remaining number of host ID bits (after "borrowing") determines the number of hosts you can have on each subnet. Table 72 Subnet 1 NETWORK NUMBER IP Address IP Address (Binary) Subnet Mask Subnet Mask (Binary) Subnet Address: 192. 168. 1. 0 Broadcast Address: 192. 168. 1. 127 192. 168. 1. Lowest Host ID: 192. 168. 1. 1 Highest Host ID: 192. 168. 1. 126 LAST OCTET BIT VALUE 0 00000000 128 10000000 Table 73 Subnet 2 NETWORK NUMBER IP Address IP Address (Binary) Subnet Mask Subnet Mask (Binary) Subnet Address: 192. 168. 1. 128 Broadcast Address: 192. 168. 1. 255 192. 168. 1. Lowest Host ID: 192. 168. 1. 129 Highest Host ID: 192. 168. 1. 254 LAST OCTET BIT VALUE 128 10000000 128 10000000 The remaining 7 bits determine the number of hosts each subnet can have. [. . . ]