DELL S50V User Manual

|

C-Series Debugging and Diagnostics

www.dell.com | support.dell.com

The CP monitors the health status of the other processors using heartbeat messaging exchange.

FTOS automatically saves critical information about the IPC failure to NVRAM. Such information 
includes:

•

Status counters on the internal Ethernet interface

•

Traffic profile of the inter-CPU bus

•

Kernel drops

•

High CPU exception conditions

Upon the next boot, this information is uploaded to a file in the CRASH_LOG directory. Use the following 
command sequence beginning in EXEC mode to capture this file for analysis by the Dell Force10 TAC.

In a dual RPM system, the two RPMs send synchronization messages via inter-RPM communication 
(IRC). As described in the High Availability chapter, an RPM failover can be triggered by loss of the 
heartbeat (similar to a keepalive message) between the two RPMs. FTOS reports this condition via syslog 
messages, as follows: 

FTOS automatically saves critical information, about the IRC failure, to NVRAM. Use the same three-step 
procedure to capture this file for analysis by Dell Force10. 

1

Display the directories in flash memory. The output 
should include:

 

EXEC 

2

Change to the CRASH_LOG directory. 

EXEC 

3

View any saved files in the CRASH_LOG directory. 
The naming convention is: 

For example:

EXEC Privilege

4

View the contents of the file. 

EXEC Privilege

Message 4  RPM Failover Syslog Messages

20:29:07: %RPM1-S:CP %IRC-4-IRC_WARNLINKDN: Keepalive packet 7 to peer RPM is lost

20:29:07: %RPM1-S:CP %IRC-4-IRC_COMMDOWN: Link to peer RPM is down

%RPM1-S:CP %RAM-4-MISSING_HB: Heartbeat lost with peer RPM. Auto failover on heart beat lost.

%RPM1-S:CP %RAM-6-ELECTION_ROLE: RPM1 is transitioning to Primary RPM.