User manual LG LAM400R

[. . . ] 4-Port ADSL Router Model: LAM400R U S ER MA N U A L For Annex A/B LAM400R Copyright Copyright © 2002 by this company. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of this company. Disclaimer This company makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties, merchantability or fitness for any particular purpose. Any software described in this manual is sold or licensed "as is". Should the programs prove defective following their purchase, the buyer (and not this company, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software. [. . . ] Loss of Signal event is only recorded if the signal is lost while the 4 Port ADSL Router is in showtime status. This field displays the count of 4 Port ADSL Router signal loss events. This field displays the count of 4 Port ADSL Router frame loss events. A Loss of Frame event is only recorded if the signal is lost while the 4 Port ADSL Router is in showtime status. CRC Errors : Cyclic Redundancy Check ( CRC ) is a method for checking errors in data transmissions. This field displays the number of transmit data frames containing CRC errors. Data Rate : This field displays the 4 Port ADSL Router data rate in kbps. Latency : Latency, synonymously delay, is the amount of time it takes for a packet of data to get from one designated point to another. This field displays the two mapping modes for latency ( Fast and Interleaved ). LG4- Port ADSL Router User Manual 89 LAM400R 4. 4. 2. 4 WAN Status The WAN Status page shows the information and status of WAN PVCs. WAN : This field displays the IP address, Subnet Mask and MAC address for the WAN (ADSL) interface. Use the Virtual Circuit selection to select different PVCs for status display. Virtual Circuit : Select the Virtual Circuit that you want to release/renew, select the appropriate option on the menu dropdown and click "EXECUTE". LG4- Port ADSL Router User Manual 90 LAM400R 4. 4. 2. 5 ATM Status The ATM Status page shows all the statistics information of ATM cells. This page contains information that is dynamic and will refresh every 2 seconds. Reset Counters : This button allows user to reset the ATM Status counter. ATM Status Fields : Tx Bytes, Rx Bytes, Tx Cells, Rx Cells, Rx HEC Errors, Tx Mgmt Cells, Tx CLP0 Cells, Rx CLP0 Cells, Tx CLP1 Cells, Rx CLP1 Cells, Rx Errors, Tx Errors, and Rx Misrouted Cells. Note: For more information on HEC, Cell, CLP0, and CLP1, please refer to Appendix F : Glossary. LG4- Port ADSL Router User Manual 91 LAM400R 4. 4. 2. 6 Learned MAC Table Network bridges operate at the physical network layer. The purpose of a bridge is to connect two or more networks and enable packet sharing between them. Bridges are different from routers because they forward packets based on physical addresses, whereas routers use IP address to forward packets. Bridges must learn all the physical ( MAC ) addresses of the devices so it can forward the packets reliably. The purpose of the Learned MAC Table is to store and display these bridge-recognized MAC addresses. The Learned MAC Table page shows the current learned Bridge MAC table. This page contains information that is dynamic and will refresh every 8 seconds. Aging Timeout : This field allows you to enter the update period for the MAC table. Range for Aging Timeout field is 0 ­ 32767, default is 100. LG4- Port ADSL Router User Manual 92 LAM400R 4. 4. 3 System Management The links under System Management are only accessible when user is logged in as Admin. Regular user account does not have authorization to view or alter the content on the pages in the System Management section. LG4- Port ADSL Router User Manual 93 LAM400R 4. 4. 3. 1 All Status The All Status pages show the complete information and status of the 4 Port ADSL Router. LG4- Port ADSL Router User Manual 94 LAM400R LG4- Port ADSL Router User Manual 95 LAM400R LG4- Port ADSL Router User Manual 96 LAM400R LG4- Port ADSL Router User Manual 97 LAM400R 4. 4. 3. 2 Diagnostic Test The Diagnostic Test page shows the test results for the connectivity of the physical layer and protocol layer for both LAN and WAN sides. [. . . ] This enables the ADSL WAN access to be shared with multiple nodes on the LG4- Port ADSL Router User Manual 165 LAM400R LAN. Network Address Translation (NAT) is supported so that one WAN-side IP address can be shared among multiple LAN-side devices. SNMP : Simple Network Management Protocol: Used to govern network management and monitor devices on the network. SNR : Signal-to-Noise Ratio: Measured in decibels, SNR is a calculated ratio of signal strength to background noise. [. . . ]