User manual LG LAN185HV

[. . . ] Further, this company reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation to notify any person of such revision or changes. LG4- Port ADSL Router User Manual i LAN185HV FCC Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against radio interference in a residential environment. This equipment can generate, use and radiate radio frequency energy and, if not installed and used in accordance with the instructions in this manual, may cause harmful interference to radio communications. However , there is no guarantee that interference will not occur in a particular installation. [. . . ] Modulation : This field displays the 4 Port ADSL Router modulation status, which can either be G. dmt or T1. 413. Annex Mode : This field displays the 4 Port ADSL Router annex mode, which can either be Annex A or Annex B. Startup Attempts : This field displays the number of 4 Port ADSL Router connection attempts after loss of showtime. A connection attempt is recorded only if showtime is attained. Max TX Power : This field displays the transmit output power level of the CPE ( Customer Premise Equipment ), which is the transmit output power level of the 4 Port ADSL Router. CO Vendor : This field displays the Central Office ( CO ) DSLAM vendor name, if available. If the 4 Port ADSL Router is not connected to an ADSL vendor, then "UNUSED_VENDOR_0" will appear in this field. Elapsed Time : This field displays the time of the 4 Port ADSL Router has been in operation. This is the amount of time the 4 Port ADSL Router is on, not the amount of time it is connected to the PC or in showtime status. LG4- Port ADSL Router User Manual 88 LAN185HV SNR Margin : Signal to Noise Ratio ( SNR ) is the measure of signal intensity relative to the background noise. The SNR Margin is the amount of increased noise that can be tolerated while maintaining the designated BER ( Bit Error Rate ). The SNR Margin is set by Central Office DSLAM. 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. Have this number lower if you want a more frequent refresh rate. Range for Aging Timeout field is 0 ­ 32767, default is 100. LG4- Port ADSL Router User Manual 92 LAN185HV 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 LAN185HV 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 LAN185HV LG4- Port ADSL Router User Manual 95 LAN185HV LG4- Port ADSL Router User Manual 96 LAN185HV LG4- Port ADSL Router User Manual 97 LAN185HV 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 page will continually refresh every 2 seconds until all tests are complete. Testing Ethernet LAN Connection : This test passes if the Ethernet LAN interface is working properly. Testing ADSL Synchronization : This test checks your 4 Port ADSL Router to see if it can successfully negotiate and establish an ADSL connection with your service provider. The test returns "PASS" if an ADSL connection is established. [. . . ] DHCP is used to serve each LAN-side device and IP address. 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. The higher this ratio, the better the signal quality. [. . . ]