3Com 3C63311 Reference Guide - Page 188

176 CHAPTER 5: PATHBUILDER S330 DIAGNOSTICS AND PERFORMANCE STATISTICS DSX-1/E1 CBR Module Alarms Table 29 describes the alarms specific to DSX-1 and E1 CBR modules. . Table 29 DSX-1/E1 CBR Module Alarms Alarm Meaning Troubleshooting Steps Cellbus parity Parity error on cells received from cell bus. Check VC and port configuration. E1 Loss of CAS Multiframe E1 signaling multiframe alignment has been lost. Check the physical connection and the carrier for configuration problems. E1 Time Channel 16 All 1s in E1 time slot 16 for 2 AIS Rcv consecutive frames. Make sure both the local device and the far end device are configured for Time Slot 16 framing. If both devices are correctly configured, there may be a hardware problem in either device. Far End E1 Loss of The far end device has lost Check the E1 configuration of the far CAS Channel Associated signaling. end device. HP cellbus congested High priority cell bus Remove high priority connections until congested. the configured bandwidth is less than The cell port has been configured to pass more CBR traffic than it can physically handle. The aggregate bandwidth of the CBR or equal to the total bandwidth on the port. If you have over-subscribed the port and all high priority devices are using the connections, turn off some devices. connections exceeds the total bandwidth of the port. This alarm indicates that you either mistakenly oversubscribed the cell port with CBR connections, or more connections than expected are simultaneously active. When this condition exists on the HP cell bus, lower priority cell busses will not be able to pass traffic out. LP cellbus congested Low priority cell bus congested. Remove low priority connections until the configured bandwidth is less than or equal to the total bandwidth on the port. If you have over-subscribed the port and all low priority devices are using the connections, turn off some devices. MP cellbus congested Medium priority cell bus congested. Remove medium priority connections until the configured bandwidth is less than or equal to the total bandwidth on the port. If you have oversubscribed the port and all medium priority devices are using the connections, turn off some devices. Receive FIFO Overflow Cells are being received from Reconfigure the CBR connection so the cell bus faster than the CBR that it has adequate bandwidth. can process them. SAR SRAM failure SAR SRAM failure (applicable Replace the unit. to CBR) (continued)