• Tag : SNMP


SNMP support for MPLS/RSVP-TE

Description This feature adds RSVP information for three tables from MPLS-TE-STD-MIB: mplsTunnelTable mplsTunnelHopTable mplsTunnelPerfTable mplsTunnelTable An entry in the mplsTunnelTable represents a tunnel at the LER, where any LSP specific columns are for the tunnel’s currently active LSP. There are 4 indices for entries in this table: “mplsTunnelIndex”: corresponds to the session’s tunnel ID in “show mpls rsvp session” “mplsTunnelInstance”: corresponds to the session’s active path’s LSP ID in “show mpls rsvp session” “mplsTunnelIngressLSRId”: corresponds to the session’s extended tunnel ID in “show mpls rsvp session” “mplsTunnelEgressLSRId”: corresponds to the session’s destination address in “show mpls rsvp session” mplsTunnelPerfTable This...
Continue reading →

Shaped Interface Speed in IF-MIB

Description This feature adds a SNMP CLI knob to allow an interface’s speed, as shown in IF-MIB, to reflect its shaped bandwidth. When the SNMP knob is configured along with the QoS command “shape rate <rate> [kbps|percent]”, the speed will report the shape rate value. The highest possible value that can be shown is 4294967295. However, this won’t affect the interface’s clock rate. IfSpeed: From IF-MIB::IfTable::IfEntry, shows the speed in bits per second (bps). IfHighSpeed: From IF-MIB::IfXTable::IfXEntry, shows the speed in megabits per seconds (mbps). Platform compatibility This feature is supported on all platforms. Configuration To set the QoS shape...
Continue reading →

Understanding and Interpreting SNMP outputs for switch entities

This article provides an overview on how to interpret the values returned by SNMP on polling certain MIB objects related to physical entities such as sensor values of different components from a switch. Overview of Entity MIBS To provide a quick overview, Arista supports the following standard MIBs:  ENTITY-MIB (RFC4133) ENTITY-SENSOR-MIB (RFC4268) ENTITY-STATE-MIB (RFC3433) ..and also a proprietary MIB: ARISTA-ENTITY-SENSOR-MIB ENTITY-MIB describes a set of MIB objects that can be used to poll information regarding physical entities in a networking equipment such as entity name, class (if the unit is a sensor, module, fan, power supply, container etc), hardware /...
Continue reading →

Disable ENTITY-STATE traps for link up/down

Description This feature adds a CLI knob to allow disabling the ENTITY-STATE traps entStateOperEnabled & entStateOperDisabled that are triggered by link up/down events; entStateOperEnabled & entStateOperDisabled traps will still be generated as usual for entities that are not interfaces. Platform compatibility This feature is supported on all platforms. Configuration The entStateOperEnabled & entStateOperDisabled traps from the ENTITY-STATE-MIB are enabled by default. They are grouped under the “entity” category, and may be enabled/disabled like all other traps with the  “[no] snmp-server enable traps” command. To specifically target those entStateOperEnabled & entStateOperDisabled traps that are generated due to interfaces going up or...
Continue reading →

SNMP IP address ACL support

Description SNMP IP address ACL support provides the ability to add access-lists to limit the source addresses that can be used to query the SNMP server, reachable on the switch through the access SNMP data (port 161).  The access-lists will contain standard permit and deny commands. Platform Compatibility This feature is platform independent. Configuration [ no | default ] snmp-server ( ( ipv4 access-list IP4_ACL )  | ( ipv6 access-list IP6_ACL ) ) [ vrf VRF ] If VRF is not specified, “default” is assumed Show Commands show snmp ( ( ipv4 access-list [ IP4ACL ] ) | ( ipv6...
Continue reading →

SNMP traps for MAC move, learn, and age events

Description This feature adds three new SNMP traps for MAC move, learn, and age events: aristaMacMove, aristaMacLearn, and aristaMacAge, respectively. These are defined in the ARISTA-BRIDGE-EXT-MIB. Platform compatibility This feature is supported on all platforms. Configuration The aristaMacMove, aristaMacLearn, and aristaMacAge traps are disabled by default. They may be enabled, like all traps, with the “snmp-server enable traps” command. They are grouped under the “bridge” category, so they can all be enabled at once with “snmp-server enable traps bridge”, or they can each be enabled/disabled individually, as shown below: switch(config)#snmp-server enable traps bridge ? arista-mac-age Enable aristaMacAge trap arista-mac-learn Enable...
Continue reading →

SNMPv1/v2c Configuration

Objective The document is aimed to provide basic configuration needed on Arista switches to be able to monitor the device statistics using an SNMP monitoring tool. Configuration  Enable SNMP SNMPv1: The Simple Network Management Protocol, defined in RFC 1157. This version uses plaintext community name for interacting with the SNMP monitoring server. SNMPv2c: Community-string based Administrative Framework for SNMPv2, defined in RFC 1901, RFC 1905, and RFC 1906. This version also uses plaintext community string. Hence, the security level is the same as SNMPv1.  To query Arista switches using SNMP v1 or v2c, define a community name on the switch...
Continue reading →

SNMP monitoring

Do we have a blog for integrating Arista switches with MRTG?

SNMP support for Cloud and On-Prem deployments

Description Cloud: SNMP support for Event/Alerts (New Feature) Starting 8.8 release, Cloud customers can receive all events/alerts as SNMP traps. While configuring an SNMP trap destination server, an AP can be configured to act as CIP (Cloud Integration Point) to receive traps without exposing the SNMP destination server over the Internet. An SNMP destination server can be added through either “CloudVision Wi-Fi” (SYSTEM -> Third-Party Servers -> SNMP-Alerts) or “Wireless Manager” UI (Configuration -> ESM Integration -> Events SNMP). To configure SNMP trap destination server through “CloudVision Wi-Fi”, go to  “SNMP-Alerts” configuration page from the SYSTEM -> “Third-Party Servers”. Click...
Continue reading →

SNMP oid to find LAG members?

Is any way exist to decide a problem? I find that standart IEEE8023-LAG-MIB::dot3adAggPortSelectedAggID is not supported. Vendor specific mib doens’t have such information also. I mean that https://www.arista.com/en/support/product-documentation/arista-snmp-mibs

Polling temperature values via SNMP

Hi All, After reading the snmp paper published in the kb (https://eos.arista.com/introduction-to-managing-eos-devices-monitoring/#21_Using_SNMP_for_monitoring), and browsing through the snmp mib tree for EOS, I have some questions regarding SNMP polling. What is the most important parameter that needs to be sampled for temperature? Cpu temp, Cpu board temp, Back-panel, Front-panel, hotspot, inlet, ambient temp? For each platform on the same switches series (7280), I see that the sensor number changes i can query sensor id#14 which on one is cpu board temp with ., but on 7280QR-C36, the cpu board temp is on sensor #2. I guess my question is – is...
Continue reading →

MIB’s for transciever information

Hi, We were wanting to start monitoring the Tx and Rx power on some of our switchs via SNMP, but we haven’t been able to find which MIB includes the oid’s for this we think we have it down to . but we aren’t sure as to which of these values are for which key. Any help would be appreciated. Cheers Brent

SNMP MIB support for “show hardware capacity”

Hardware Table Capacity Monitoring is an existing feature to keep track of the capacity and utilization of various hardware forwarding resources and generate alerts/syslogs when the utilization exceeds a threshold value. With SNMP MIB support, Users can use SNMP server to monitor hardware utilization. Whenever utilization exceeds threshold value, Switch sends SNMP traps in addition to alerts/syslogs. The Main use-case would be for troubleshooting in overflow situations and avoid overflows altogether by taking corrective actions on high utilization. Platform compatibility DCS-7280E DCS-7500E DCS-7050SX DCS-7050TX DCS-7050QX DCS-7260CX DCS-7260QX DCS-7160-32CQ DCS-7160-48YC6 DCS-7160-48TC6 Configuration SNMP Configuration EOS supports a growing number of both...
Continue reading →


Is it possible to obtain each VRF routing table via SNMP on Arista?  mplsL3VpnVrfRteInetCidrDest does not exist(?). thank you

Introduction to Managing EOS Devices – Memory Utilisation

A common question that users new to EOS have is concerning the high levels of memory utilisation seen on Arista switches (~70% utilised). Typically this is first flagged by the NMS and triggers a low memory warning or alarm. Unlike a traditional switching OS, EOS uses Linux page caching. Most free memory is used as a live cache and very low ‘free memory’  numbers are entirely normal, providing that enough memory is available from the buffers and cached memory for applications demanding more RAM. In this case, the OS is capable of freeing up memory from cache as processes demand it. Memory...
Continue reading →

Need MIB file on Arista 7504

In our project need to integrate Arista 7504 switch with HP Openview for monitoring, so it required all mib file on arista 7504. Please provide all mib file in arista.

vEOS 4.13.8M SNMP value for ::hrStorageSize

Our monitoring team alerted me to a potential issue with the vEOS SNMP Agent responding with incorrect data for hrStorageSize, at least on Core Used Memory:   The ‘hrStorageSize’ OID appears to be incorrect. The total size of the disk/memory is calculated by hrStorageSize * hrStorageAllocationUnits. Here are the values for this device: HOST-RESOURCES-MIB::hrStorageSize.8 = INTEGER: 50847 HOST-RESOURCES-MIB::hrStorageAllocationUnits.8 = INTEGER: 4096 Bytes HOST-RESOURCES-MIB::hrStorageUsed.8 = INTEGER: 50847 Unfortunately, hrStorageSize and hrStorageUsed are the same value. This indicates that the storage object is completely saturated, even though generating a report for Bits only shows correct data (which is calculated by hrStorageUsed *...
Continue reading →

snmp, mac address table

I am looking for the mac address->port listings from my switch. It appears related to the OID addresses labeled ‘dot1qTpFdbPort’ but when I am querying it from Linux I am not seeing the same variables as when I query locally from the switch. Do you guys have any ideas? Logan

Introduction to Managing EOS Devices

Summary   Several mechanisms exist to manage and instrument Arista Networks’ devices, ranging from industry standard SNMP counters to more Arista EOS/platform-centric functionality and deep debugging capabilities. The following articles introduce some fundamental management activities:   Setting up Management Monitoring Troubleshooting Platform Specific Monitoring and Troubleshooting Automation and Extensibility Annex A – Configuration Example Annex B – EOS Tips for Power Users   This document serves to highlight the basic parameters required to automate monitoring of an Arista EOS based device, while providing a high level overview of additional, more advanced functionality for low level troubleshooting and application specific monitoring. Many of the topics...
Continue reading →


Get every new post on this blog delivered to your Inbox.

Join other followers: