ARISTA-HARDWARE-UTILIZATION-MIB
This MIB contains information about the capacity and
utilization of hardware resources on Arista devices.
Arista ships and supports devices which perform packet
forwarding decisions in hardware. To make these forwarding
decisions (L2 bridging, input and output access list, L3
forwarding based on IP destination etc.), the devices use
information programmed in various hardware
resources. Examples of such hardware resources are the
hash table used for MAC address lookup, TCAM for
destination IP lookup etc.
Each of Arista's devices have different hardware resource
capacity or size limits. It is extremely useful for a
Network Management system to be able to query and monitor
the utilization of these hardware resources. Due to
unxpected network event or configuration change, it is
possible that a specific hardware resource is over
utilized and there is no room to program additional
entries. For example, a routing mis-configuration can
result in overflowing the L3 forwarding TCAM. This may
be detrimental to the network operation. So it's extremely
useful to monitor the utilization of the various hardware
resources of a specific device.
On some devices, due to hardware design considerations,
several features may have to share a single hardware
resource. If one feature ends up using more of the same
resource, it can affect the functionality of another
feature. This is another reason to have visibility into
the hardware resource usage.
The hardware element that makes the forwarding decision is
frequently referred to as the 'Forwarding ASIC' or
'Forwarding Chip'. In this MIB document we refer to this
hardware element as 'Forwarding Element'. Even though a
device can have multiple forwarding elements, the information
programmed in each of the forwarding element is typically
the same. But there are some cases, where this is not the
case. In such instances, the utilization of relevant
hardware resource(s) may not be the same across all the
forwarding elements.
This MIB module provides the hardware capacity and
utilization information for various resources in a generic
manner, that's applicable to all Arista devices.
- Source file
ARISTA-HARDWARE-UTILIZATION-MIB- Last revised
- Identity
aristaHardwareUtilizationMIB- Base OID
1.3.6.1.4.1.30065.3.22
Imported Objects
| ARISTA-SMI-MIB | aristaMibs |
| SNMPv2-CONF | MODULE-COMPLIANCE (no object page) NOTIFICATION-GROUP (no object page) OBJECT-GROUP (no object page) |
| SNMPv2-SMI | Counter32 MODULE-IDENTITY (no object page) NOTIFICATION-TYPE (no object page) OBJECT-TYPE (no object page) |
| SNMPv2-TC | DisplayString TimeStamp |
Net-SNMP examples using the arista MIB directory Show commands
These commands use the standard Observium installation path and load the selected MIB variant before the RFC and Net-SNMP directories.
Translate the module identity
/usr/bin/snmptranslate -Pud -Ir -On -m 'ARISTA-HARDWARE-UTILIZATION-MIB' -M '/opt/observium/mibs/arista:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'ARISTA-HARDWARE-UTILIZATION-MIB::aristaHardwareUtilizationMIB'
Walk the MIB subtree
/usr/bin/snmpbulkwalk -v2c -c '<community>' -Pud -Ir -OQUs -m 'ARISTA-HARDWARE-UTILIZATION-MIB' -M '/opt/observium/mibs/arista:/opt/observium/mibs/rfc:/opt/observium/mibs/net-snmp' 'udp:<hostname>:161' 'ARISTA-HARDWARE-UTILIZATION-MIB::aristaHardwareUtilizationMIB'
Objects (18)
Showing 18 of 18 objects
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Blue badges identify the value syntax. Connected badges read as defining module and convention.
IF-MIBifIndex
Table index
Green identifies an index object; yellow names its module when the index is defined elsewhere.
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r/w means read-write. Grey labels mark definitions retained for compatibility.
OBS ✓
Observium use
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ifOperStatus
.1.3.6.1.2.1…
Names and OIDs
Object names link to their detail pages. Hover or focus a linked name or badge for available definition details.
.1.3.6.1.4.1.30065.3.22 |
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.1.3.6.1.4.1.30065.3.22.0 |
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.1.3.6.1.4.1.30065.3.22.1 |
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.1.3.6.1.4.1.30065.3.22.1.1.1.1 |
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.1.3.6.1.4.1.30065.3.22.1.1.1.10 |
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.1.3.6.1.4.1.30065.3.22.1.1.1.2 |
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.1.3.6.1.4.1.30065.3.22.1.1.1.3 |
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.1.3.6.1.4.1.30065.3.22.1.1.1.4 |
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.1.3.6.1.4.1.30065.3.22.2.1 |
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.1.3.6.1.4.1.30065.3.22.2.2 |
Dependencies (4) 4 direct Show tree and compile order Hide dependency details
Each imported module is resolved in the importing module's source directory first, then through the normal default-variant rules.
Dependency tree
Dependency-first compile order
- SNMPv2-SMIrfc
- ARISTA-SMI-MIBarista
- SNMPv2-CONFrfc
- SNMPv2-TCrfc
- ARISTA-HARDWARE-UTILIZATION-MIBaristaselected
Conformance Groups (2)
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aristaHardwareUtilizationInUseEntries aristaHardwareUtilizationFreeEntries aristaHardwareUtilizationCommittedEntries aristaHardwareUtilizationMaxEntries aristaHardwareUtilizationHighWatermark aristaHardwareUtilizationHighWatermarkTime aristaHardwareUtilizationSharedFeatures
The collection of objects that provide counter information
for hardware resource utilization. |
.1.3.6.1.4.1.30065.3.22.2.2.1
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The notification(s) generated by the system if the hardware
utilization of a specific resource exceeds configured threshold. |
.1.3.6.1.4.1.30065.3.22.2.2.2
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Compliance Statements (1)
OID
.1.3.6.1.4.1.30065.3.22.2.1.1The compliance statement for Arista switches that implement
the ARISTA-HARDWARE-CAPACITY-MIB.
the ARISTA-HARDWARE-CAPACITY-MIB.
Required groups
| mandatory | aristaHardwareUtilizationTableGroup | |
| mandatory | aristaHardwareUtilizationNotificationsGroup |
Notifications / Traps (1)
| Name | OID | Description |
|---|---|---|
.1.3.6.1.4.1.30065.3.22.0.1 |
This notification is generated when the hardware utilization
crosses the specified threshold. |