Descriptions of Traps in the Trap Buffer

The output format of a trap on a CLI terminal is as follows:

Aug  7 2015 12:44:01 HUAWEI %%01LDP/1/Session-Down-MIB(t):CID=0x801c043c-OID=1.3.6.1.2.1.10.166.4.0.4;
The LDP session status is Down. (PeerLsrId=19.19.19.19:0, VrfName=_public_, SessionType=Local, IfName=GigabitEthernet0/1/1, SubReason=0,
Reason=The LDP Keepalive timer expired.)

Figure 1 shows the output format of a trap.

Figure 1 Output format of traps

**Table 1** Output format description of traps
Field	Meaning	Description
TimeStamp	Timestamp, that is, time to output log information	Five timestamp formats are available: boot: indicates that the timestamp is expressed in the format of relative time, a period of time since the start of the system. The format is xxxxxx.yyyyyy. xxxxxx is the higher order 32 bits of the milliseconds elapsed since the start of the system; yyyyyy is the lower order 32 bits of the milliseconds elapsed since the start of the system. data: indicates that the timestamp employs the current data and time of the system and is expressed in the format of "mm dd yyyy hh:mm:ss". short-date: indicates that the timestamp employs the short date. The timestamp of this type is almost the same as that of the data type, with the only difference lying in that the short-date type cancels the display of the year. format-date: indicates that the timestamp is expressed in YYYY-MM-DD hh:mm:ss format. none: indicates that no timestamp is contained in log information. A timestamp and a host name are separated by a space. The format of the trap timestamp is configurable.
HostName	Host name or virtual system name	The default name is HUAWEI.
%%	Huawei identifier	Indicates that the trap is output by a Huawei device.
dd	Version number	Indicates the version of the trap format.
ModuleName	Module name	Indicates the name of the module by which traps are output.
Severity	Trap level	Indicates the severity of a trap. Trap levels are classified into eight levels. The lower the value of the trap level, the higher the severity is. 0: emergency A fatal fault, such as a abnormal program or a memory error, occurs on the device. The system must restart. 1: alert A major fault occurs, such as the device memory threshold reaches the upper limit. The fault needs to be rectified immediately. 2: critical A critical fault occurs, such as the device memory threshold reaches the lower limit, the temperature reaches the lower limit, the BFD device is unreachable, or an internal fault generated by the device itself. The fault needs to be analyzed and rectified. 3: error A fault caused by an incorrect operation or wrong process occurs, such as an incorrect user password or a wrong protocol packet is received from another device. The fault needs to be addressed. 4: warning An abnormal situation occurs, such as the user disables the routing process, BFD detects the packet loss, or a wrong protocol packet is received. The fault needs to be addressed. 5: notice Indicates the key operations that are used to keep the device functioning properly, such as the shutdown command, neighbor discovery, or the state machine. 6: informational Indicates the common operations that are used to keep the device functioning properly, such as the display command. 7: debugging Indicates that a routine operation is performed, and no action is required.
Brief	Description	Indicates the information type.
(t)	Information type	Indicates the trap information.
CID=Z	System component ID	Indicates the system component ID.
OID=F	Trap OID	Indicates the trap OID, which is an object identifier defined in a MIB file.
Des	Information about details	Indicates the detail information about the system component output. Each time before the trap is output, the module fills up its contents.