Syslog messages for hitless stacking failover and switchover
Syslog messages are generated for the following events:
- Switchover
- Failover
- Standby controller assignment
The following table lists the supported syslog messages for hitless stacking failover and switchover.
| Message level | Message | Explanation |
|---|---|---|
| Informational | Stack: Stack unit unit_number has been assigned as STANDBY unit of the stack system | Indicates that the unit has been assigned as the standby controller. |
| Informational | Stack: Stack is operational due to SWITCH-OVER | Indicates that a switchover has occurred. |
| Informational | Stack: Stack is operational due to FAIL-OVER | Indicates that a failover has occurred. |
To view the system log or the traps logged on an SNMP trap receiver, enter the show log command at any level of the CLI. The following sample output shows what the log may look like after a switchover or assignment of the standby controller.
Brocade# show log
Syslog logging: enabled (0 messages dropped, 1 flushes, 0 overruns)
Buffer logging: level ACDMEINW, 8 messages logged
level code: A=alert C=critical D=debugging M=emergency E=error
I=informational N=notification W=warningDynamic Log Buffer (50 lines):
0d00h05m34s:I:System: Interface ethernet mgmt1, state up
0d00h05m33s:I:Stack: Stack unit 8 has been assigned as STANDBY unit of the stack system
0d00h05m33s:I:Stack: Stack is operational due to SWITCH-OVER
0d00h05m32s:I:Stack: Stack unit 1 has been elected as ACTIVE unit of the stack system
0d00h05m29s:W:System:Stack unit 2 Fan speed changed automatically to 2
0d00h05m25s:W:System:Stack unit 5 Fan speed changed automatically to 2
0d00h05m00s:I:System: Interface ethernet mgmt1, state down
0d00h05m00s:I:Security: Telnet server enabled by from session
The following sample output shows what the log may look like after a failover of the active controller.
Brocade# show log
Syslog logging: enabled (0 messages dropped, 0 flushes, 0 overruns)
Buffer logging: level ACDMEINW, 12 messages logged
level code: A=alert C=critical D=debugging M=emergency E=error
I=informational N=notification W=warning
Dynamic Log Buffer (50 lines):
0d00h04m41s:I:Stack: Stack unit 3 has been assigned as STANDBY unit of the stack system
0d00h04m12s:I:System: Interface ethernet mgmt1, state up
0d00h04m10s:I:System: Interface ethernet mgmt1, state down
0d00h04m10s:I:System: Interface ethernet mgmt1, state up
0d00h04m09s:I:STP: VLAN 1 Bridge is RootBridge: 800000e052010000 (MgmtPriChg)
0d00h04m09s:I:System: Management MAC address changed to 0000.0001.0000
0d00h04m09s:I:Stack: Stack is operational due to FAIL-OVER
0d00h04m08s:I:Stack: Stack unit 1 has been elected as ACTIVE unit of the stack system
0d00h04m08s:I:STP: VLAN 1 Port 8/1/1 STP State -> DISABLED (PortDown)
0d00h04m08s:I:STP: VLAN 1 Port 8/1/1 STP State -> FORWARDING (PortDown)
0d00h04m08s:I:System: Interface ethernet 1/2/2, state down
0d00h04m06s:I:System: Interface ethernet 8/2/2, state down