Thursday, December 2, 2010

Deciphering Dell IPMI SNMP Traps

Dell Servers can be configured to send traps when a system even occurs. The following sections discuss how to decipher the SNMP traps. A PowerEdge R300 was used in the examples, and the event discussed is a Chassis Intrusion Alarm.

Useful links

PET Specification
Dell PET Events (MIB)

SNMP Trap OIDs

SNMP Traps from the BMC arrive with the following base OID
.1.3.6.1.4.1.3183.1.1

.1.3.6.1.4.1.3183.1.1.0.x defines the Event type, per the Dell MIB above.
.1.3.6.1.4.1.3183.1.1.1 defines the PET spec information analyzed below.

Based on the Event type OID, you can determine much of what you need to know to generate a nagios trap. In our case,
.1.3.6.1.4.1.3183.1.1.0.356096 indicates an Intrusion event.
.1.3.6.1.4.1.3183.1.1.0.356224 indicates an Intrusion event has been cleared.

PET Analysis

44 45 4C 4C 4B 00 10 4A 80 4B C3 C0 4F 4D 4C 31         1:16    GUID (t3)
00 01 17:18 Seq# 0001
18 4A 74 D5 19:22 Timestamp (seconds from 0:00 1/1/98) 407532757
FF FF 23:24 UTC offset, minutes (0xFFFF unspecified) unspecified
20 25 Trap Source Type IPMI
20 26 Event Source Type IPMI
10 27 Event Severity Critical
20 28 Sensor Device 32
73 29 Sensor Number 115
18 30 Entity 24 (System Chassis)
00 31 Entity Instance (0x0 unspecified) unspecified
80 01 FF 00 00 00 00 00 32:39 Event Data
19 40 Language Code 25
00 00 02 A2 41:44 Manufacturer ID Dell
01 00 45:46 System ID 256?
6C 69 6F 6E 2D 34 2D 69 70 6D 69 C1 47:(110) OEM Custom Fields

Example PET fields

Pipes denote field bounds

                                               |      |           |     |  |  |  |  |  |  |  |      |                 |  |           |     |
44 45 4C 4C 4B 00 10 4A 80 4B C3 C0 4F 4D 4C 31 00 01 18 4A 74 D5 FF FF 20 20 10 20 73 18 00 80 01 FF 00 00 00 00 00 19 00 00 02 A2 01 00 6C 69 6F 6E 2D 34 2D 69 70 6D 69 C1
44 45 4C 4C 4B 00 10 4A 80 4B C3 C0 4F 4D 4C 31 00 05 18 4A 74 EE FF FF 20 20 04 20 73 18 00 80 01 FF 00 00 00 00 00 19 00 00 02 A2 01 00 6C 69 6F 6E 2D 34 2D 69 70 6D 69 C1
44 45 4C 4C 4B 00 10 4A 80 4B C3 C0 4F 4D 4C 31 00 09 18 4A 8E CA FF FF 20 20 10 20 73 18 00 80 01 FF 00 00 00 00 00 19 00 00 02 A2 01 00 6C 69 6F 6E 2D 34 2D 69 70 6D 69 C1
44 45 4C 4C 4B 00 10 4A 80 4B C3 C0 4F 4D 4C 31 00 0D 18 4A 8E F2 FF FF 20 20 04 20 73 18 00 80 01 FF 00 00 00 00 00 19 00 00 02 A2 01 00 6C 69 6F 6E 2D 34 2D 69 70 6D 69 C1


Decoding the PET fields

GUID (16-bytes)

Dell doesn't appear to follow the specification for this field. The first 4 characters are DELL, followed by a string that incorporates part of the Service Tag (CKJKML1). More clarity here could be useful.
44 45 4C 4C 4B 00 10 4A 80 4B C3 C0 4F 4D 4C 31
D E L L K J K O M L 1

Sequence number (2-bytes)

Increasing counter, doesn't appear to be incremental (! +1).

Timestamp (4-bytes)

Odd metric, the number of seconds elapsed since 0:00 1/1/1998 (883612800). Here is some perl that will make a regular timestamp.
$time = localtime(883612800 + 407532757);
print "$time";
Tue Nov 30 13:32:37 2010

Trap Source Type (1-byte)

Table 3 (p.9) in PET spec defines.

Event Source Type (1-byte)

Table 3 (p.9) in PET spec defines.

Event Severity (1-byte)

Table 3 in PET spec defines. 0x10 == Critical, 0x4 == Normal.

Sensor Device (1-byte)

Device ID,

root-> ipmitool sdr list mcloc
BMC | Dynamic MC @ 20h | ok
DRAC 5 | Dynamic MC @ 26h | ok

Sensor Number (1-byte)

The actual sensor ID as known by the BMC. PET spec table 5 (p.13) defines Sensor Types. In the above example, value 0x73 (Chassis Intrustion) falls within the OEM RESERVED range (0xC0-0xFF), even though there is a Physical Security value defined (0x5). Stupid.

root-> ipmitool -v sensor
Sensor ID : Temp (0x1)
Entity ID : 3.1
Sensor Type (Analog) : Temperature
Sensor Reading : Unable to read sensor: Device Not Present

Event Status : Event Messages Disabled
Assertion Events :
Event Enable : Event Messages Disabled
Assertions Enabled :

Sensor ID : Planar Temp (0x7)
Entity ID : 7.1
Sensor Type (Analog) : Temperature
Sensor Reading : 21 (+/- 1) degrees C
Status : ok
Lower Non-Recoverable : na
Lower Critical : 3.000
Lower Non-Critical : 8.000
Upper Non-Critical : 53.000
Upper Critical : 58.000
Upper Non-Recoverable : na
Assertion Events :
Assertions Enabled : lnc- lcr- unc+ ucr+
Deassertions Enabled : lnc- lcr- unc+ ucr+

Sensor ID : Ambient Temp (0x8)
Entity ID : 7.1
Sensor Type (Analog) : Temperature
Sensor Reading : 16 (+/- 1) degrees C
Status : ok
Lower Non-Recoverable : na
Lower Critical : 3.000
Lower Non-Critical : 8.000
Upper Non-Critical : 42.000
Upper Critical : 47.000
Upper Non-Recoverable : na
Assertion Events :
Assertions Enabled : lnc- lcr- unc+ ucr+
Deassertions Enabled : lnc- lcr- unc+ ucr+

Sensor ID : CMOS Battery (0x10)
Entity ID : 7.1
Sensor Type (Discrete): Battery

Sensor ID : VCORE (0x12)
Entity ID : 3.1
Sensor Type (Discrete): Voltage
States Asserted : Digital State
[State Deasserted]

Sensor ID : CPU VTT (0x16)
Entity ID : 7.1
Sensor Type (Discrete): Voltage
States Asserted : Digital State
[State Deasserted]

Sensor ID : 1.5V PG (0x17)
Entity ID : 7.1
Sensor Type (Discrete): Voltage
States Asserted : Digital State
[State Deasserted]

Sensor ID : 1.8V PG (0x18)
Entity ID : 7.1
Sensor Type (Discrete): Voltage
States Asserted : Digital State
[State Deasserted]

Sensor ID : 1.5V Riser PG (0x19)
Entity ID : 16.1
Sensor Type (Discrete): Voltage
States Asserted : Digital State
[State Deasserted]

Sensor ID : FAN MOD 1A RPM (0x30)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : 6675 (+/- 75) RPM
Status : ok
Lower Non-Recoverable : na
Lower Critical : 3525.000
Lower Non-Critical : na
Upper Non-Critical : na
Upper Critical : na
Upper Non-Recoverable : na
Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 1B RPM (0x31)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : 6375 (+/- 75) RPM
Status : ok
Lower Non-Recoverable : na
Lower Critical : 2325.000
Lower Non-Critical : na
Upper Non-Critical : na
Upper Critical : na
Upper Non-Recoverable : na
Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 2A RPM (0x32)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : 6900 (+/- 75) RPM
Status : ok
Lower Non-Recoverable : na
Lower Critical : 3525.000
Lower Non-Critical : na
Upper Non-Critical : na
Upper Critical : na
Upper Non-Recoverable : na
Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 2B RPM (0x33)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : 6300 (+/- 75) RPM
Status : ok
Lower Non-Recoverable : na
Lower Critical : 2325.000
Lower Non-Critical : na
Upper Non-Critical : na
Upper Critical : na
Upper Non-Recoverable : na
Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 3A RPM (0x34)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : 6900 (+/- 75) RPM
Status : ok
Lower Non-Recoverable : na
Lower Critical : 3525.000
Lower Non-Critical : na
Upper Non-Critical : na
Upper Critical : na
Upper Non-Recoverable : na
Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 3B RPM (0x35)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : 6225 (+/- 75) RPM
Status : ok
Lower Non-Recoverable : na
Lower Critical : 2325.000
Lower Non-Critical : na
Upper Non-Critical : na
Upper Critical : na
Upper Non-Recoverable : na
Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 4A RPM (0x36)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : 6825 (+/- 75) RPM
Status : ok
Lower Non-Recoverable : na
Lower Critical : 3525.000
Lower Non-Critical : na
Upper Non-Critical : na
Upper Critical : na
Upper Non-Recoverable : na
Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 4B RPM (0x37)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : 6150 (+/- 75) RPM
Status : ok
Lower Non-Recoverable : na
Lower Critical : 2325.000
Lower Non-Critical : na
Upper Non-Critical : na
Upper Critical : na
Upper Non-Recoverable : na
Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 5A RPM (0x38)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : Unable to read sensor: Device Not Present

Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 5B RPM (0x39)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : Unable to read sensor: Device Not Present

Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 6A RPM (0x3a)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : Unable to read sensor: Device Not Present

Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : FAN MOD 6B RPM (0x3b)
Entity ID : 7.1
Sensor Type (Analog) : Fan
Sensor Reading : Unable to read sensor: Device Not Present

Assertion Events :
Assertions Enabled : lcr-
Deassertions Enabled : lcr-

Sensor ID : Presence (0x50)
Entity ID : 3.1
Sensor Type (Discrete): Entity Presence
States Asserted : Entity Presence
[Present]

Sensor ID : Presence (0x54)
Entity ID : 10.1
Sensor Type (Discrete): Entity Presence
Unable to read sensor: Device Not Present

Sensor ID : Presence (0x55)
Entity ID : 10.2
Sensor Type (Discrete): Entity Presence
Unable to read sensor: Device Not Present

Sensor ID : Presence (0x56)
Entity ID : 26.1
Sensor Type (Discrete): Entity Presence
States Asserted : Entity Presence
[Absent]

Sensor ID : PFault Fail Safe (0x5f)
Entity ID : 7.1
Sensor Type (Discrete): Voltage
Unable to read sensor: Device Not Present

Sensor ID : Status (0x60)
Entity ID : 3.1
Sensor Type (Discrete): Processor
States Asserted : Processor
[Presence detected]

Sensor ID : Status (0x64)
Entity ID : 10.1
Sensor Type (Discrete): Power Supply
Unable to read sensor: Device Not Present

Sensor ID : Status (0x65)
Entity ID : 10.2
Sensor Type (Discrete): Power Supply
Unable to read sensor: Device Not Present

Sensor ID : Status (0x66)
Entity ID : 16.1
Sensor Type (Discrete): Cable / Interconnect
States Asserted : Cable/Interconnect
[Connected]

Sensor ID : RAC Status (0x70)
Entity ID : 7.1
Sensor Type (Discrete): Module / Board

Sensor ID : OS Watchdog (0x71)
Entity ID : 7.1
Sensor Type (Discrete): Watchdog

Sensor ID : SEL (0x72)
Entity ID : 7.1
Sensor Type (Discrete): Event Logging Disabled
Unable to read sensor: Device Not Present

Sensor ID : Intrusion (0x73)
Entity ID : 7.1
Sensor Type (Discrete): Physical Security

Sensor ID : PS Redundancy (0x74)
Entity ID : 7.1
Sensor Type (Discrete): Power Supply
Unable to read sensor: Device Not Present

Sensor ID : Fan Redundancy (0x75)
Entity ID : 7.1
Sensor Type (Discrete): Fan
States Asserted : Redundancy State
[Fully Redundant]

Sensor ID : CPU Temp Interf (0x76)
Entity ID : 7.1
Sensor Type (Discrete): Temperature
Unable to read sensor: Device Not Present

Sensor ID : Drive (0x80)
Entity ID : 26.1
Sensor Type (Discrete): Drive Slot / Bay
Unable to read sensor: Device Not Present

Sensor ID : Cable SAS (0x90)
Entity ID : 26.1
Sensor Type (Discrete): Cable / Interconnect
Unable to read sensor: Device Not Present

Sensor ID : Cable PDB Ctrl (0x9b)
Entity ID : 7.1
Sensor Type (Discrete): Cable / Interconnect
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
e8 84 ff ff 02 07 d9 9d ea c3 e4 05 21 a5 5d d5
e8 bb f7 a3 c0 82 d0 e8 84 ff ff 02 07 d9 9d ea
c3 e4 05 21 a5 5d d5 e8 bb
Sensor ID : ECC Corr Err (0x1)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
b4 e5 ff ff 02 07 e1 05 e7 29 ae 0a 84 fb aa eb
3b b9 03 d1 bc 49 df b4 e5 ff ff 02 07 e1 05 e7
29 ae 0a 84 fb aa eb 3b b9
Sensor ID : ECC Uncorr Err (0x2)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
ed db ff ff 02 07 a4 9f 92 d0 b0 e2 f7 e1 7d 32
6a d1 4b 5d 2e b5 13 ed db ff ff 02 07 a4 9f 92
d0 b0 e2 f7 e1 7d 32 6a d1
Sensor ID : I/O Channel Chk (0x3)
Entity ID : 34.1
Sensor Type (Discrete): Critical Interrupt
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
4a bb ff ff 02 07 08 02 91 61 be 82 9f 5a c2 fe
06 c7 dd 43 e1 e8 03 4a bb ff ff 02 07 08 02 91
61 be 82 9f 5a c2 fe 06 c7
Sensor ID : PCI Parity Err (0x4)
Entity ID : 34.1
Sensor Type (Discrete): Critical Interrupt
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
2d 73 ff ff 02 07 ef 35 08 e3 a8 d0 20 24 06 f9
c7 8e d2 6b 6e bc de 2d 73 ff ff 02 07 ef 35 08
e3 a8 d0 20 24 06 f9 c7 8e
Sensor ID : PCI System Err (0x5)
Entity ID : 34.1
Sensor Type (Discrete): Critical Interrupt
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
a3 0d ff ff 02 07 4f f0 04 c0 1a 99 af 12 46 1d
74 e9 bf 16 12 0c 13 a3 0d ff ff 02 07 4f f0 04
c0 1a 99 af 12 46 1d 74 e9
Sensor ID : SBE Log Disabled (0x6)
Entity ID : 34.1
Sensor Type (Discrete): Event Logging Disabled
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
cc b9 ff ff 02 07 87 67 27 84 5a b6 f3 f1 82 4a
8b 89 74 67 69 be 11 cc b9 ff ff 02 07 87 67 27
84 5a b6 f3 f1 82 4a 8b 89
Sensor ID : Logging Disabled (0x7)
Entity ID : 34.1
Sensor Type (Discrete): Event Logging Disabled
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
3b c3 ff ff 02 07 3e 85 9a 4c 8f 63 b7 53 73 e4
02 5a 3b 5d 4e 47 73 3b c3 ff ff 02 07 3e 85 9a
4c 8f 63 b7 53 73 e4 02 5a
Sensor ID : Unknown (0x8)
Entity ID : 34.1
Sensor Type (Discrete): System Event
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
f7 35 ff ff 02 07 f6 37 7a ef e8 74 61 e9 71 f9
fc b0 e1 89 d3 f5 a9 f7 35 ff ff 02 07 f6 37 7a
ef e8 74 61 e9 71 f9 fc b0
Sensor ID : CPU Protocol Err (0xa)
Entity ID : 34.1
Sensor Type (Discrete): Processor
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
23 f7 ff ff 02 07 3c 95 d4 23 3a a8 33 05 91 7e
ce 24 73 7c 99 10 8c 23 f7 ff ff 02 07 3c 95 d4
23 3a a8 33 05 91 7e ce 24
Sensor ID : CPU Bus PERR (0xb)
Entity ID : 34.1
Sensor Type (Discrete): Processor
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
09 66 ff ff 02 07 f7 cc ba bf c7 38 50 8b 2f 39
b3 fc 0c 00 72 77 aa 09 66 ff ff 02 07 f7 cc ba
bf c7 38 50 8b 2f 39 b3 fc
Sensor ID : CPU Init Err (0xc)
Entity ID : 34.1
Sensor Type (Discrete): Processor
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
30 89 ff ff 02 07 61 33 4c 17 c3 f1 2d 92 e1 10
57 b6 71 73 93 6a d7 30 89 ff ff 02 07 61 33 4c
17 c3 f1 2d 92 e1 10 57 b6
Sensor ID : CPU Machine Chk (0xd)
Entity ID : 34.1
Sensor Type (Discrete): Processor
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
02 a7 ff ff 02 07 21 d2 89 70 8b 5d 5d 17 8b bb
ae 82 dd 44 ae 4c 51 02 a7 ff ff 02 07 21 d2 89
70 8b 5d 5d 17 8b bb ae 82
Sensor ID : Memory Spared (0x11)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
32 e8 ff ff 02 07 b1 0d 1f 30 f1 92 fe 56 0d c0
4e 65 ea 72 f3 b1 5c 32 e8 ff ff 02 07 b1 0d 1f
30 f1 92 fe 56 0d c0 4e 65
Sensor ID : Memory Mirrored (0x12)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
21 6f ff ff 02 07 a8 30 d8 ec 71 02 00 a4 d1 3f
d3 c9 90 7e 8f 06 60 21 6f ff ff 02 07 a8 30 d8
ec 71 02 00 a4 d1 3f d3 c9
Sensor ID : Memory RAID (0x13)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
c3 d1 ff ff 02 07 e3 44 16 17 2a 90 0e 17 81 bf
e8 08 39 40 ad 72 a0 c3 d1 ff ff 02 07 e3 44 16
17 2a 90 0e 17 81 bf e8 08
Sensor ID : Memory Added (0x14)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
e8 84 ff ff 02 07 3f f7 41 58 00 29 a3 b9 e6 62
96 15 f7 a3 c0 82 d0 e8 84 ff ff 02 07 3f f7 41
58 00 29 a3 b9 e6 62 96 15
Sensor ID : Memory Removed (0x15)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
b4 e5 ff ff 02 07 41 0c a2 b5 d5 ac fa 16 a4 72
84 d7 03 d1 bc 49 df b4 e5 ff ff 02 07 41 0c a2
b5 d5 ac fa 16 a4 72 84 d7
Sensor ID : Memory Cfg Err (0x16)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
ed db ff ff 02 07 07 e8 5a fa 86 ce 6b 76 73 7c
5b aa 4b 5d 2e b5 13 ed db ff ff 02 07 07 e8 5a
fa 86 ce 6b 76 73 7c 5b aa
Sensor ID : Mem Redun Gain (0x17)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
4a bb ff ff 02 07 48 27 41 3c 46 00 c1 02 1a 34
e8 9c dd 43 e1 e8 03 4a bb ff ff 02 07 48 27 41
3c 46 00 c1 02 1a 34 e8 9c
Sensor ID : PCIE Fatal Err (0x18)
Entity ID : 34.1
Sensor Type (Discrete): Critical Interrupt
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
2d 73 ff ff 02 07 39 32 87 7d 45 a2 db 02 9c c5
37 c9 d2 6b 6e bc de 2d 73 ff ff 02 07 39 32 87
7d 45 a2 db 02 9c c5 37 c9
Sensor ID : Chipset Err (0x19)
Entity ID : 34.1
Sensor Type (Discrete): Critical Interrupt
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
a3 0d ff ff 02 07 d7 c6 5d b1 7f 62 43 47 5a 77
de bc bf 16 12 0c 13 a3 0d ff ff 02 07 d7 c6 5d
b1 7f 62 43 47 5a 77 de bc
Sensor ID : Err Reg Pointer (0x1a)
Entity ID : 34.1
Sensor Type (Discrete): Unknown (0xC1)
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
cc b9 ff ff 02 07 64 6e 71 6c 91 87 23 4a 6b fd
f7 68 74 67 69 be 11 cc b9 ff ff 02 07 64 6e 71
6c 91 87 23 4a 6b fd f7 68
Sensor ID : Mem ECC Warning (0x1b)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
3b c3 ff ff 02 07 05 79 96 82 45 b8 12 6c c3 5e
cf f2 3b 5d 4e 47 73 3b c3 ff ff 02 07 05 79 96
82 45 b8 12 6c c3 5e cf f2
Sensor ID : Mem CRC Err (0x1c)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
f7 35 ff ff 02 07 bd 82 5a 26 89 50 fb 7c ab db
db c2 e1 89 d3 f5 a9 f7 35 ff ff 02 07 bd 82 5a
26 89 50 fb 7c ab db db c2
Sensor ID : USB Over-current (0x1d)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
23 f7 ff ff 02 07 6a e7 7e 30 28 75 30 2c 64 c3
d4 5a 73 7c 99 10 8c 23 f7 ff ff 02 07 6a e7 7e
30 28 75 30 2c 64 c3 d4 5a
Sensor ID : POST Err (0x1e)
Entity ID : 34.1
Sensor Type (Discrete): System Firmwares
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
09 66 ff ff 02 07 07 f7 35 2f af 3c a0 41 6f 32
aa b1 0c 00 72 77 aa 09 66 ff ff 02 07 07 f7 35
2f af 3c a0 41 6f 32 aa b1
Sensor ID : Hdwr version err (0x1f)
Entity ID : 34.1
Sensor Type (Discrete): Version Change
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
30 89 ff ff 02 07 95 50 49 39 93 8e 61 72 fa 30
77 07 71 73 93 6a d7 30 89 ff ff 02 07 95 50 49
39 93 8e 61 72 fa 30 77 07
Sensor ID : Mem Overtemp (0x20)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
02 a7 ff ff 02 07 31 99 d7 13 76 96 49 e1 f0 58
dc 00 dd 44 ae 4c 51 02 a7 ff ff 02 07 31 99 d7
13 76 96 49 e1 f0 58 dc 00
Sensor ID : Mem Fatal SB CRC (0x21)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

bridge command response (41 bytes)
32 e8 ff ff 02 07 da 7a 46 57 4c f4 82 17 35 7f
63 8f ea 72 f3 b1 5c 32 e8 ff ff 02 07 da 7a 46
57 4c f4 82 17 35 7f 63 8f
Sensor ID : Mem Fatal NB CRC (0x22)
Entity ID : 34.1
Sensor Type (Discrete): Memory
Unable to read sensor: Device Not Present

Entity (1-byte)

PET spec table 6 (p.17) defines values

Entity Instance (1-byte)

0x0 unspecified

Event Data (8-bytes)

Additional information about the event, as defined in PET spec table 5 (p.13), or in our case, by the OEM..

80 01 FF 00 00 00 00 00

Language Code (1-byte)

Manufacturer ID (4-bytes)

0x2A2 = 674 = Dell
source

System ID (2-bytes)

0x100 = 256 = ???

OEM Custom Fields (<=64-bytes)

Custom fields defined by the OEM.