Cisco 10720 Configuration Guide - Page 101

CH A P T E R 4 Troubleshooting This section contains basic troubleshooting guidance for the Cisco 10720 Internet Router and components. • Basic Troubleshooting RPR-IEEE for the Uplink Card, page 4-1 • Basic Troubleshooting SRP for the Uplink Card, page 4-7 • Alarm Messages, page 4-11 • Basic Troubleshooting Ethernet for the Access Card, page 4-19 Basic Troubleshooting RPR-IEEE for the Uplink Card This section provides basic troubleshooting guidelines for RPR-IEEE on the RPR/SRP uplink card. For additional information about RPR-IEEE configurations, refer to the Cisco IOS Software Configuration for the Cisco 10720 Internet Router publication. For additional Cisco IEEE 802.17 related documentation, see the "Related Documentation" section on page xix. The following sections present information on show commands, verification steps, and alarm messages: • Using the show controller rpr-ieee Command, page 4-1 • Using the show arp Command, page 4-4 • Verifying Clocking, page 4-5 • PASS-THRU Mode, page 4-5 • Verifying the PASS-THRU Mode, page 4-5 • Using the show rpr-ieee topology Command, page 4-6 • Using the show rpr-ieee protection Command, page 4-6 • Fiber Misconnection, page 4-7 Using the show controller rpr-ieee Command Verify the following using the show controller rpr-ieee command: • RX optics readout values are within specifications. For example: RX readout values: -11 dBm - Within specifications, RX readout values: -15 dBm - Within specifications • Error counters are not incrementing. • There are no active defects or alarms. For example, Active Alarms: None 78-13062-10 Cisco 10720 Internet Router Installation and Configuration Guide 4-1