15.4 The network is experiencing one or more of the following failure symptoms: "the whole network is operating slowly"; " a specific network application is operating slowly"; or "log-on failures are occurring." First, set up the protocol analyzer or network monitoring tool to monitor the network bandwidth utilization at an overall baseline view. Is the overall network baseline within normal operating levels of a previously established baseline for your network? If you do not have a previously established baseline for your network, attempt to identify that a reasonable portion of the available maximum bandwidth is still available for use. Go back to the beginning of this procedure ( page 15) and follow the subsec tions of this complete procedure. (That is, examine the low-layer 802.5 frame communication processes; check for specific soft or hard errors on the network; and examine the high-layer network frame communication processes.) Check the overall baseline network bandwidth as to individual ring stations and all other network components' level usage. Attempt to locate a particular ring station or other network component that may be absorbing abnormal bandwidth. Can you locate any particular ring stations or other network components that may be absorbing abnormal bandwidth? If you have not troubleshot the high-level communication process on the ring, go back to page 15.3 and thoroughly troubleshoot the high-level communication process for any NOS or application communication processes that may be absorbing abnormal bandwidth. After analyzing the high-layer communication process, come back to this page (15.4) and remeasure the baseline network bandwidth. If you have troubleshot the high-level communication processes, go to the next step . Even though you cannot specifically locate any particular ring stations or other network components that may be absorbing abnormal bandwidth, still check any ring stations or network components that are suspect by going to the page for that particular specific network component (for example, 6 Ring Station Problems, 10 Network Peripheral Problems , 14 File Server Problems , and so on). If you are not completely conclusive as to a specific network component that may be related to the failure symptom, go to page 2 and troubleshoot the respective Token Ring addresses associated with high bandwidth usage. If after going to the respective fault domain, network area, or network component you find a problem, resolve the problem and retest the ring by coming back to this page. Rerun another baseline bandwidth test session to reexamine the ring for bandwidth usage. If everything appears normal, record the problem in the network maintenance and service log. If the problem still exists, contact your NOS and software support channel for assistance with troubleshooting any suspected network bandwidth issues. If you have benchmarked the network bandwidth utilization at overall baseline view and usage of the individual ring stations and other network components, and you still have a bandwidth problem that you cannot locate, contact your NOS and software support channel for assistance with troubleshooting any suspected bandwidth problem. November 15, 1996 Print This Page E-mail this URL