Failure To Forward Packets; Symptom; Solution; Packet Dropping - HP HSR6600 Troubleshooting Manual

Failure to forward packets

Symptom

An Ethernet interface on an intermediate router cannot forward packets.

Solution

To resolve the problem:
1. Verify that the Ethernet interface can ping the directly connected device. If the ping operation fails,
see "Failure to ping the directly connected
2. Use the debugging ip packet command to verify that the interface can transmit IP packets correctly.
3. If the problem persists, collect the following information for the interface:
Execute the display hardware internal module interface-name interface-number statistics

command in probe view to collect the interface statistics.
Execute the display hardware internal module interface-name interface-number status

command in probe view to collect the status information.
Execute the display hardware internal module interface-name interface-number reg 1

command in probe view to collect the FPGA information.
Execute the display hardware internal module interface-name interface-number reg 2

command in probe view to collect the MAC information.
Execute the display hardware internal module interface-name interface-number reg 3

command in probe view to collect the PHY information.
For interfaces on a FIP-300 or FIP-310 LPU, execute the display hardware internal nae slot

slot-number freein command in probe view to collect the hardware buffer information.
For interfaces on a FIP-240 or SAP-4EXP LPU, execute the display hardware internal dpaa slot

slot-number bman pool-info command in probe view to collect the hardware buffer information.
4. Contact HP Support.

Packet dropping

Symptom
An Ethernet interface drops packets.
Solution
To resolve the problem:
1. Determine whether the packets are dropped by the local end or the peer end by executing the
following commands to compare the rates of the two ends:
Execute the display counters rate inbound interface command on the local end to view the

inbound traffic rate statistics.
device."
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