Diagnostics and Troubleshooting6-10 8000-A2-GB26-10January 1999Client Cannot Reach DSLAMThis section examines the Service Node-to-DSLAM segment of the network.NOTE:On the DSLAM, verify that the DSL link is up and that there is a MAC addressfor the client (screen B-E-B).— If the MAC address appears, and all items in the previous section havebeen examined, it is safe to assume that this network segment isfunctioning. Skip this section and go to Table 6-6, DSLAM-to-IPCSegment.— If a MAC address does not appear, check the items in Table 6-5.99-16173-01OO IINext HopRouter(NHR) DSLAM ClientsNMSWANHubSNSNISPIPCWANService Node-to-DSLAM SegmentNMSISPGatewayRouterTable 6-5. Service Node-to-DSLAM Segment (1 of 2)Layer SolutionLayer 1 –Physical1. On either the Service Node or Access Node, if the ALM LED is on,power the system off and then on again. Conduct a self-test fromscreen D-A. Go to screen D-B to learn more about the cause of thealarm.2. Perform a Service Node self-test at the DSLAM (screen D-D) to testmemory and start up parameters.3. If the PWR, ALM, LINE and TST LEDs remain lit, make sure thecorrect power adapter is being used and that the correct firmware ison the Service Node (screen B-F). Make sure the correct port isselected.4. Go to screen B-A-C to view the system log.
