What commands can be used to troubleshoot input drops or output drops on the PA-A3-OC12?
A. The per-virtual-channel (per-VC) output packet automatically drops counter increments when the VC uses all of the particle buffers assigned to it. It does so based on the above formula or based on the value configured manually via the tx-ring-limit command. In other words, the value of tx_count (the number of buffers in use) has reached the value of tx_limit. A VC experiences this condition during bursts or during periods of sustained congestion, when the VC is presented with more packets than the shaping parameters allow and excess packets must be queued. If a VC experiences incrementing output packet drops when the average output rate is consistently less than the sustainable cell rate (SCR), capture several outputs of the show interface atm slot/port-adapter/port command to determine the Cisco IOS Software switching path of the traffic. For more troubleshooting tips, refer to Troubleshooting Output Drops on ATM Router Interfaces. The PA-A3-OC12 may experience an incrementing valu
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