3Com 3C996B-T User Manual

Contents

3Com 3C996B-T User Manual Manual pdf 105 page image

DOS Diagnostic Failures97LinuxTo verify that the Ethernet interface is up and running, run ifconfig to check the status ofthe Ethernet interface. To check the statistics on the Ethernet interface, you can also usenetstat -i. Consult manual pages for more information on ifconfig and netstat.DOS Diagnostic FailuresRunning the DOS diagnostic B57DIAG.exe can result in false failures under the followingcircumstances: The DOS diagnostic B57DIAG.exe will fail if EMM386.exe is loaded in low memory. Donot use EMM386.exe when running the DOS diagnostic program. When using the DOS diagnostic B57DIAG.exe for the fiber NIC (3C996-SX), you mustuse the -npol option to pass all diagnostic tests. For example:b57diag -npolOmiting the -npol option causes the fiber NIC to fail each diagnostic test.Wake-on-LanThe fiber version of the Gigabit Server NIC will not operate with Wake-on-LAN (WOL). Youmust disable WOL when using this version of the Gigabit Server NIC.Known ProblemsThis section provides a list of known software problems and solutions for Windows 2000and Linux.Windows 2000Problem SolutionAble to create LAC connectionsicons having same name undernetwork properties menu.Each network adapter installed properly will have an icon in Network Properties window. Thename of the icon is usually in the form of “Local Area Connection ##” and where ## is a numberstarting from 1. The names of icon can be changed by right clicking the icon and selectingrename. The name of the icon is only meaningful to the Network Properties window. Sometimesthe system administrators will rename these icons to easily differentiate the networkconnections. When Advanced Server Features is configured, Advanced Server Features will createadditional adapter icons and rename the icons. The naming convention is to allow end users toquickly identify the adapter with corresponding team and VLAN. The names of the icons createdby Advanced Server Features therefore are not recommended to be changed.Uninstalling the Advanced ServerFeatures software and user isprompted to reboot early.After configuring Advanced Server Features team, the system may sometimes prompt user toreboot. This is because Plug and Play may fail to commit any change in the network protocolbinding. Users can choose not to reboot and continue configuring intermediate driver withouthaving any side effect. When user has finished all the configuration, it is required to reboot.Cannot enable VLAN after it isdisabled.Advanced Server Features program creates additional network connections in “NetworkConnection and Dial-up” Window. Similar to physical network connections, these virtualconnections can be disabled via the context menu. However, if these virtual connections are re-enabled, the system will report error as “connection failed!”. This is known problem withWindows 2000. When this happens, rebooting the system enables the virtual connection again.Able to configure InternetConnection Sharing (ICS) whenthere aren't any unassignedadapters.Windows 2000 networking is shipped with the Internet Connection Sharing (ICS), which isdesigned to allow multiple computers to access the Internet through a Windows 2000 system.To configure ICS, a user would need to select a network connection as “outside” connection,and another network connection as “inside” connection. 3Com has observed that ICS allowsany available network connection to be “outside” and “inside,” regardless of the AdvancedServer Features team configuration. 3Com recommends that the user not select any networkconnection that is part of the Advanced Server Features team to be “outside” and “inside.”