Calculating of entPhysicalIndex in the Entity MIB
The inventory in the switch system can be accessed through a MIB browser. These devices are indexed (entPhysicalIndex) using three layers:
-
Module layer—includes modules located on system (e.g., cables, fan, power supply, and so forth). See the Management Information Bases (MIBs) | id (8.2 3.12.6000)ManagementInformationBases(MIBs) ModuleTypeBreakdown table, for more details.
-
Device layer—a number identifying the specific device that is associated with the module (e.g., ASIC on a leaf, fan on the management board, and so forth).
-
Sensor layer—a number identifying the specific sensor that is associated with the device (e.g., fan sensors, temperature sensors, power sensors, and so forth).
Each layer is assigned a fixed position in the SNMP index number that represent it.
The physical entities in the system (other than port modules) use the following index schema:
|
Mod. Type ID |
Module Index |
Device Identifier |
Sensor Type and Index |
|||||
|---|---|---|---|---|---|---|---|---|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
Layer 1 |
Layer 2 |
Layer 3 |
||||||
Quantum systems use the following index schema for port modules and port module sensors:
|
Mod. Type ID |
Port Module Identifier |
Port module Sensor index
|
|||||||
|---|---|---|---|---|---|---|---|---|---|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
Layer 1 |
Layer 2 |
Layer 3 |
|||||||
Switch-IB, Switch-IB 2 use the following index schema for port modules and port module sensors:
|
Mod. Type ID |
Port Module Identifier |
Port Module Sensor Type
|
Sensor index |
|||||
|---|---|---|---|---|---|---|---|---|
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
|
Layer 1 |
Layer 2 |
Layer 3 |
||||||
Module Type Breakdown
|
Number |
Description |
|---|---|
|
1 |
Chassis |
|
2 |
Management |
|
3 |
Spine |
|
4 |
Leaf |
|
5 |
Fan |
|
6 |
Power supply |
|
7 |
BBU |
|
8 |
x86 CPU |
|
9 |
Port module |
|
Physical entities—10 digits representation |
|
|
1 |
Port module |
Port module 9 digits representation is kept for backwards compatibility.
Device Type Breakdown
|
Number |
Description |
|---|---|
|
1 |
PS |
|
2 |
FAN |
|
3 |
MGMT |
|
4 |
BOARD_MONITOR |
|
5 |
CPU_BOARD_MONITOR |
|
6 |
SX |
|
7 |
SIB |
|
8 |
CPU_MEZZ_TEMP |
|
9 |
CPU_MEZZ_VOLT |
|
10 |
CPU package Sensor |
|
11 |
CPU Core Sensor |
|
12 |
SX_AMBIENT_TEMP |
|
13 |
SX_MONITOR |
|
14 |
AUX_IN_TMP_SNSR |
|
15 |
AUX_OUT_TMP_SNSR |
|
16 |
MAIN_IN_TMP_SNSR |
|
17 |
MAIN_OUT_TMP_SNSR |
|
18 |
CPU_MEZZ_TEMP |
|
19 |
controller |
|
20 |
QSFP_TEMP |
|
21 |
QSFP-ASIC |
|
22 |
Board AMB temp |
|
23 |
Ports AMB temp |
|
24 |
power-mon |
|
25 |
PS_MONITOR |
|
26 |
CURR_MONITOR |
|
27 |
MGMT_MONITOR |
|
28 |
acdc-monitor1 |
|
29 |
acdc-monitor2 |
|
30 |
POWER_DOMAIN |
|
31 |
LEAF |
|
32 |
SPINE |
|
33 |
pwr-monitor |
|
34 |
pvc-monitor |
|
35 |
SWB AMB temp |
|
36 |
pcie-switch-temp |
|
37 |
SPC |
|
38 |
On-board inlet |
|
39 |
On-board outlet |
|
40 |
QTM |
|
41 |
Front AMB temp |
|
42 |
AMBIENT_TEMP |
|
43 |
COMEX VoltMonitor1 |
|
44 |
COMEX VoltMonitor2 |
|
45 |
COMEX Ambient Sensor |
|
46 |
Gearbox Sensors |
|
47 |
SODIMM |
|
48 |
PCH thermal Sensor |
|
49 |
NV |
|
50 |
LEAKAGE |
Sensor Type Breakdown
|
Number |
Description |
|---|---|
|
1 |
t |
|
2 |
f |
|
3 |
p |
|
4 |
cu |
|
5 |
v |
|
6 |
consumer_p |
|
7 |
consumer_c |
|
8 |
consumer_v |
|
9 |
leakage |
Examples
-
entPhysicalIndex with value 4011913119 digits representation.Layer 1 is “401”—“4” indicates a leaf (see Module Type Breakdown table) and “01” indicates leaf at index #1 (i.e., leaf 01)Layer 2 is “1913”—this is the identifier for one of the QSFP-ASIC in the systemLayer 3 is “11”—this is the identifier for temperature sensor #1The description for this physical entity (appears in entPhysicalDescr column of the MIB) would be: L01/QSFP-ASIC-1/T1
-
entPhysicalIndex with value 5010200219 digits representation.Layer 1 is “501”—“5” indicates a fan (see Module Type Breakdown table) and “01” indicates fan at index #1 (i.e., fan 01)Layer 2 is “0200”—this is the identifier for general fan in the systemLayer 3 is “21”—this is the identifier for fan sensor #1The description for this physical entity (appears in entPhysicalDescr column of the MIB) would be: FAN1/FAN/F1
-
For entPhysicalIndex with value 100001270010 digits representation.Layer 1 is “1”—port module (see Module Type Breakdown table)Layer 2 is “127”—port identifierLayer 3 is “00”—no sensors for this port module
-
For entPhysicalIndex with value 100001274210 digits representation.Layer 1 is “1”—port module (see Module Type Breakdown table)Layer 2 is “127”—port identifierLayer 3 is “42”—sensor in the range 41..79 indicts an RX sensor
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