Cisco Cisco ASR 5000 Guide De Dépannage
Contents
Overview
Products Affected
CDETS
Symptoms
Fix
Workaround / Recovery Method
Root Cause Analysis
Related Cisco Support Community Discussions
Overview
This article is to provide brief information and notification on an issue related to Single Point of
Failure (SPOF) alarms on ASR 5000 for Link Aggregation (LAG) ports after a port bounce. The
false alarms may cause unnecessary tickets to be opened when in fact there is no issue to be
concerned about.
Failure (SPOF) alarms on ASR 5000 for Link Aggregation (LAG) ports after a port bounce. The
false alarms may cause unnecessary tickets to be opened when in fact there is no issue to be
concerned about.
Products Affected
Any ASR 5000 including PDSN, ePDG, Home Agent, GGSN, SGW, MME, etc. with LAG ports
would be affected.
would be affected.
CDETS
CSCun74136: ASR 5000 Alarm The 10 Gig Ethernet Line Card is a SPOF
Symptoms
There is an issue related to the unnecessary triggering of single point of failure (SPOF) alarms for
LAG-based 10 GB Line Cards (XGLC) on ASR 5000 platform. Whenever a LAG port goes down
(trap PortDown), the CardSPOFClear trap will trigger, and whenever the port comes up (trap
PortUp), the CardSPOFAlarm trap will trigger. Port bounces can be for any number of reasons
including PSC migrations, npumgr restarts, hardware failures, chassis reload, or externally caused
link issues. The following snippet shows the respective SPOF traps for a port 19/1 bounce,
meanwhile a LAG switchover often results in traps for all the ports that may bounce in the process.
LAG-based 10 GB Line Cards (XGLC) on ASR 5000 platform. Whenever a LAG port goes down
(trap PortDown), the CardSPOFClear trap will trigger, and whenever the port comes up (trap
PortUp), the CardSPOFAlarm trap will trigger. Port bounces can be for any number of reasons
including PSC migrations, npumgr restarts, hardware failures, chassis reload, or externally caused
link issues. The following snippet shows the respective SPOF traps for a port 19/1 bounce,
meanwhile a LAG switchover often results in traps for all the ports that may bounce in the process.
Tue Jan 21 07:35:55 2014 Internal trap notification 1024 (PortDown) card
19 port 1 port type 10G Ethernet
19 port 1 port type 10G Ethernet
Tue Jan 21 07:35:55 2014 Internal trap notification 1503
(EntStateOperDisabled) Port(19/1) Admin state:"Locked", Alarm
severity:"Major"
severity:"Major"
Tue Jan 21 07:35:55 2014 Internal trap notification 93 (CardStandby)
card 19 type 10 Gig Ethernet Line Card