S e n d d o c u m e n t c o m m e n t s t o n e x u s 7 k - f e e d b a c k - d o c @ c i s c o . c o m
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Cisco NX-OS System Messages Reference
OL-15994-03
Chapter 2 System Messages and Recovery Procedures
STP Messages
STP-4
Error Message
STP-4-FORWARDTIME_CONFIG_CHANGE: Forward Delay time change to [dec]
seconds for instance [chars] is not recommended as it can cause STP data loops
during High Availability Dual-Supervisor Switchover and In-Service Software
Upgrade
Explanation
It is stongly recommended to avoid changing forward delay time value to less than the
default value of 15 seconds since it can cause STP data loops during High Availability
Dual-Supervisor Switchover and also during In-Service Software Upgrade. Please read the release
notes.
Recommended Action
Please change the forward delay time to be greater than or equal to the default
value of 15 seconds.
Error Message
STP-4-HELLOTIME_CONFIG_CHANGE: Hello time change to [dec] seconds for
instance [chars] is not recommended as it can trigger STP Topology Changes during
High Availability Dual-Supervisor Switchover and In-Service Software Upgrade
Explanation
It is stongly recommended to avoid changing Hello time value to less than the default
value of 2 seconds since it can trigger STP Topology change during High Availability
Dual-Supervisor Switchover and also during In-Service Software Upgrade. Please read the release
notes.
Recommended Action
Please change the hello time to be greater than or equal to the default value of
2 seconds.
Error Message
STP-4-MAC_ADDR_FLUSH_REQ_TIMEOUT: MAC Address Flush req to L2FM
timedout after [dec] sec. vdc [dec], tree id [dec], num ports [dec], ports [chars],
opcode [chars], msg id ([dec]), rr_token [hex]
Explanation
The MAC Address Flush Request to L2FM has timed outCheck the port.
Recommended Action
No user action is required.
STP-6
Error Message
STP-6-FIRST_BPDU_TX: First BPDU transmitted
Explanation
First BPDU transmitted.
Recommended Action
No action is required.
