[PTX] Major Errors - Host Loopback Wedge

Major Errors - Host Loopback Wedge following with TLI Fatal interrupt. This issue can be seen on FPC E type of card.

1 alarms currently active

Alarm time    Class Description

2024-04-05 05:41:50 UTC Major FPC 3 Major Errors - Host Loopback Wedge

<28>1 2024-04-05T05:41:50.18 alarmd 46628 - - Alarm set: FPC color=RED, class=CHASSIS, reason=FPC 3 Major Errors - Host Loopback Wedge

<28>1 2024-04-05T05:41:50.18 craftd 11621 - - Major alarm set, FPC 3 Major Errors - Host Loopback Wedge

<163>1 2024-04-05T05:42:02.19 - - - - fpc3 TQCHIP 0: TLI Fatal interrupt, Interrupt status: 0x4000000 

<163>1 2024-04-05T05:42:03.15 - - - - fpc3 TQCHIP 0: TLI Fatal interrupt, Interrupt status: 0x4000000 

There was fatal error reported on TQCHIP0 indicating that there are no free pages in the TQ-chip page queue block which caused the host loopback wedge on the FPC.

To recover this PFE entity a restart of the FPC may be needed.

• Collect the following show command output. Capture the output to a file (in case you have to open a technical support case). To do this, configure the SSH client/terminal emulator to log your session.

show chassis alarms

show log messages

show log chassisd

show chassis fpc

show chassis fpc detail

start shell pfe network <fpc#>

show nvram 

show syslog messages 

exit

•  Analyze the show command output. In the 'show log messages', review the events that occurred at or just before the appearance of the "Host Loopback Wedge" alarm. Frequently these events help identify the cause.
•  Contact your technical support representative if the issue is seen after a FPC restart