Paradyne 8310 MVLt User Manual

Also see for HOTWIRE DSLAM: User guide Network configuration guide

Contents

Diagnostics and Troubleshooting6-78000-A2-GB26-10 January 1999Network ProblemsTo provide a practical aid in the isolation and resolution of Layer 2 networkdifficulties, the guidelines in this section provide information on troubleshooting ageneric network containing the devices found in most networks.The illustration below shows the generic network addressed by this chapter.99-16153a-01O INext HopRouter(NHR) DSLAM ClientsNMSWANHubSNSNISPIPCWANService DomainManagement DomainISP = Internet Service ProviderIPC = Interworking Packet ConcentratorNMS = Network Management SystemSN = Service NodeNMSISPGatewayRouterThese procedures assume that Asynchronous Transfer Mode (ATM) is used onthe link between the IPC and the next hop router (NHR).High-Level TroubleshootingThe following high-level procedures help you isolate problems to a particularsegment of the network. For static clients, make sure the client can Ping its own IP address. Thisconfirms the IP address was successfully accepted by the client computer. Make sure the client’s default gateway is the same as the IP address for theBridge Virtual Interface (BVI) on the appropriate ISP router. An Address Resolution Protocol (ARP) table may have invalid entries if arecent configuration change took place anywhere on the network and notenough time has passed for the entry to expire. Check the ARP tables on theclient, DSLAM, and router. Make sure a default route is configured on the MCC card (screen A-E-A).