Skip to main content

Questions tagged [snmp]

Simple Network Management Protocol (SNMP) is used for managing devices on IP networks. It is most often used to query statistics for network equipment.

Filter by
Sorted by
Tagged with
0 votes
1 answer
65 views

What is the difference between these OIDs on a Aruba Wlan Controller?

For my bachelors thesis, I have to monitor the WLAN Access Points of the university campus. For example, number of connected Clients and how many Clients are connected to each Access Point. Therefore ...
2 votes
1 answer
141 views

Dell N-Series SNMP, resolve mac adress from interface list

I can easily pull the interface list status, by doing a OID walk. This is how I can tell whether a port is online or offline. To physically resolve the location I then walk. (1.3.6.1.2.1.2.2.1.2) ...
2 votes
1 answer
108 views

Getting Arista drop counts via snmp

My group's R&D lab has an Arista 10G switch, DCS-7020SR-24C2. My admin (who is not a switch expert) enabled SNMP access. I want to see per-port drop counters. I tried this: snmpwalk -v 2c -c ...
1 vote
2 answers
170 views

Prime Infrastructure IOS-XE device type recognition

Catalyst switches usually form a stack on boot up, even if they are not stacked. They just form a stack with themselves. So Prime Infrastructure reads out the model of the switch, that says it is a ...
0 votes
0 answers
159 views

Zabbix with Fortimanager

I am seeking assistance with configuring Zabbix to monitor FortiGates that are managed by FortiManager. Despite configuring FortiManager with SNMP and adding a host for it in Zabbix, I am not seeing ...
0 votes
2 answers
887 views

snmpwalk returns hex-string for interfaces without a description

nterfaces with an actual description are returned as a string, for example the interface with Device1ILO However the interfaces without a description configured, are returned as Hex-STRING 00. How can ...
1 vote
2 answers
623 views

High-Resolution Measurement of link utilization of Cisco (Nexus) Switch Interfaces

For a research project I need low timescale interface utilization measurement on a Cisco Nexus 5000 devices and some fabric extenders. Background: The switch is used to "simulate" an optical network, ...
1 vote
0 answers
374 views

Where can I find MPLS/BGP VPNv4 labels through SNMP (cisco IOS router)?

I'm implementing SNMP and i've been digging through MIBs for the past few days. I have managed to extract the equivalent of the show command 'show mpls forwarding-table' through the 'MplsLsrMib', but ...
0 votes
0 answers
79 views

Is there a way to gather data of Optical Module Status and the CPU Utilization through SNMP protocol?

When using the snmpwalk command to query a Cisco SF302-08PP switch with the -c public community string, am not able to find data related to Optical Module Status and CPU Utilization. I am trying to ...
1 vote
1 answer
521 views

Cisco port channel identification through SNMP

on a cisco switch is there any way to identify, through SNMP queries, which interfaces are involved and configured in a port channel? I did some experiment with commons MIB, without result. Any idea? ...
0 votes
0 answers
100 views

Can I get ip-sla's destination IP address via snmp?

(Excuse my lack of networking knowledge as I am mainly a developer) Is it possible to snmpalk to get a list of all ip-sla's destination ip address via snmp? ( Router: Cisco IOS XR Software (ASR9K), ...
1 vote
1 answer
187 views

I upgraded a Cisco switch to a newer model with different SNMP OIDs. Can I have the new switch receive the old OID and report values from the new OID?

I upgraded from a Cisco SG300-10MP to a Cisco SG350-10MP. A piece of software is looking for the value from 1.3.6.1.2.2.1.8.50, but the OID on the new switch is 1.3.6.1.2.2.1.8.2. The final number ...
1 vote
0 answers
189 views

Can I check the security policies hit-count in juniper routers via SNMP?

Am trying to see if there is a way to get the output of "show security policies hit-count descending" via SNMP, it has the following o/p like so, show security policies hit-count descending ...
5 votes
2 answers
22k views

SNMP: Configuring/Enabling SNMPv3 on Cisco IOS and SNMP Agent

I have been configuring and using SNMP v2c on Cisco routers. Due to the obvious advantages in SNMP v3, I am planning on enabling SNMP v3 on SNMP v3 supported devices. Could someone let me know: The ...
5 votes
2 answers
1k views

Enable SNMP traps for ACLs using Cisco IOS?

Does anyone know if it's possible to enable SNMP traps to be sent from a Cisco IOS device when an ACL blocks traffic? I'd like to send a trap whenever a deny statement gets a hit. I've only been ...
0 votes
2 answers
2k views

How to monitor vlan using SNMP?

I am a newbie to building a monitor system using Prometheus and SNMP exporter, I have succeeded get metric from the physical interface, but I want to monitor VLAN on a trunk port, is that possible ? ...
2 votes
0 answers
672 views

Cisco Access Switches: Monitoring AAA server dead via SNMP?

This is a new setup of Cisco access switches (2960S, 2960X IOS with 15.2(2)E9, but mostly C1000 with IOS 15.2(7)E*), with a Cisco ISE 3.0 as authentication server for 802.1X, config style is to be ...
1 vote
2 answers
3k views

Cisco IOS Version changes for SNMPv3 server-group context

I'm trying to understand switch mapping using SNMPv3. It's come to my attention that the group(user) who is authenticating needs access to thecontext for mapping out VLANs. I've figures out this can ...
1 vote
1 answer
252 views

Explanation about SNMPv3 USM

Context I am having trouble understanding the USM model in SNMPv3. I base my research and understanding on RFC 3414. My problem is that authentication is not enforced in some implementations of SNMP, ...
4 votes
1 answer
372 views

what are the difficulties of configuring switches through SNMP?

I have a cisco switch that supports CLI, SNMP, and NETCONF for management issues. I should develop an application for managing the switch which should include monitoring and also configuring ...
0 votes
0 answers
226 views

h3c switch - get which trunk group that a port belongs to via SNMP

Switch: HP FF 12900 with JG857A, JG626A and JG623A modules I want to get which trunk group a port is belongs to via SNMP on my h3c core switch. Which MIB and OID can I use to get that data via SNMP? A ...
0 votes
1 answer
420 views

SNMPv2 to v3 conversion

Can I use a Cisco router to convert SNMPv2 from an end device in one network to SNMPv3 and the C&M software in another network? The end device can only handle SNMPv2, but the C&M community is ...
0 votes
0 answers
53 views

snmp mib for monitoring service instance counters

in career ethernet switches like ME3600, we can configure EVC as defined in MEF. evc counters(service instance counters) are as follow: rx_green_frames; rx_green_bytes; rx_yellow_frames; ...
2 votes
1 answer
371 views

SNMPv3 context on IOS-XE does not seem to work with Prime

We recently switched to SNMPV3 and experience the issue, that there is no client data available within prime anymore. So we quickly read about the SNMP context we need to add to our devices ...
0 votes
1 answer
589 views

How can I monitor BFD flaps?

We need to monitor BFD flaps on our Cisco Nexus devices but the problem is that Zabbix do SNMP polling every 1 minute, and we can't detect, for example, 5 sec BFD flaps. We detect only if BFD down for ...
0 votes
1 answer
3k views

How can I obtain SNMP OID from Arista in right way?

What is right way for obtain Oid from Arista? I need obtain temperature from the switch. From this I find out that CPU sensor OID is .1.3.6.1.2.1.1.1.100006001: switch#show snmp mib walk .1 | grep &...
0 votes
1 answer
159 views

snmpget for HP switch - ifType not found

I'm learning about fetching information via SNMP towards our HP switches. I'm trying to query a switch using the OID BRIDGE-MIB::dot1dTpFdbPort included with a known MAC address 50:65:f3:2e:c5:5c, as ...
0 votes
0 answers
290 views

Unable to get NetFlow flow in Cisco CSR1000v on AWS

I'm trying to use NetFlow Traffic Analyzer of SolarWinds or any NetFlow Monitor in my Cisco CSR1000v routers which are deployed on AWS. I am unable to see any NetFlow flows in the NetFlow Traffic ...
0 votes
1 answer
100 views

Why I am Getting %100+ Network Usage From SNMP? [closed]

I am using SNMP in Ubuntu 20.04 to get the network usage info and I am using this formula to calculate the network usage: InOctets : The difference between two poll cycles of collecting the snmp which ...
3 votes
1 answer
576 views

Why can't get host's mac address on l2 switch through snmp? But can get it on l3 router

I am trying to get computer's mac address through snmp. I have an envirmont in GNS3: l3 R1's image is vios-adventerprisek9-m.SPA.157-3.M3 l2 SW1's image is viosl2-adventerprisek9-m.SSA....
1 vote
0 answers
79 views

Should snmpIfHCInUcastPkts include packets bigger than 1522 bytes? [closed]

Packets bigger than 1522 bytes (as counted by Spirent Test Center) are being forwarded (bridged) but not counted in the following hardware counters on an Open Network Linux device: ifHCInUcastPkts ...
14 votes
3 answers
51k views

How to Monitor Vlan Traffic?

We have migrated to a new ISP who provide us several services (Internet+VoIP+VoD) and have divided each service in one vlan 100,101,102 respectively. Now I'm looking for a solution to monitor each ...
1 vote
3 answers
664 views

Why is in all arp table snmp oids an interface index before the ip number?

When I want to get arp information about a single ip number or subnet, I have to snmpwalk the whole arp table, as some oid architects had the "great" idea to always insert an interface index ...
4 votes
1 answer
886 views

Juniper EX4300 / MAC limiting SNMP trap

I have the following device and configuration: Model: ex4300-32f Junos: 17.3R3-S3.3 show configuration groups GLOBAL-SNMP { snmp { client-list MANAGERS { 10.8.9.0/28; } community TEST-COMMUNITY ...
0 votes
1 answer
260 views

Community String vs password - what’s the rationale behind the term name? [closed]

I’m just starting my learning of networking. The term “community string” refers to a type of password, Especially when it comes to sending/receiving configuration settings to/from a snmp server, ...
0 votes
1 answer
48 views

Policy based network management - operation modes

Can someone explain to me what PBNM operation modes(i.e, initialization, provisioning and outsourcing) are? If not can anyone give me a reference to some textbook etc.Thank you very much in advance.
2 votes
1 answer
267 views

Can IOS-XE handle multiple snmp-trap source?

we have multiple VRF on an ASR and the snmp traps should be sent on different VRFs. All VRF has a dedicated Loopback interface which should be used as snmp trap source. The snmp-server trap-source ...
0 votes
1 answer
310 views

Enable snmp read-only on Cumulus HW

What is the right way to add SNMP READ-only on a Cumulus switch and restrict access by multiple source IP addresses blocks?
0 votes
0 answers
37 views

can't find cbQosCMPostPolicyBitRate64 oid for cisco

i have use snmpwalk go get police Bit Rate Traffic policy-map(QOS) for my cisco ASR1006 but i need a 64bit barbecue my traffic is more of 5000Mbps so 32bit can't handle it . ~# snmpwalk -v2c -c aaa ...
0 votes
0 answers
181 views

read traffic/bandwidth usage by protocol

I need to analyze the traffic of a Fortigate Firewall in my program. Currently, I can read the overall traffic using SNMP. The problem is that I need to analyze the type of traffic (HTTP, video ...
0 votes
0 answers
59 views

uncorrected snmp Qos value from cisco

hello i have a router cisco 1006 and i create a policy-map with to class policy-map CheckBand-BandPerUsr class BandPerUsr police cir 10000000000 class class-default police cir 10000000000 ...
0 votes
1 answer
41 views

"ospfNbrIpAddr" parameter in RFC 4750 page 53

in RFC 4750 page 53, there is a parameter called "ospfNbrIpAddr", I am not sure exactly what it means. Suppose I have two router, they are connected through physical ethernet port1, router A port1: ...
0 votes
2 answers
370 views

Multiple SNMP servers on single agent

I am trying to test a new SNMP server (Nagios Core) along side the current one (Check MK) which has already been running for quite some time now. Will this cause any problems on an agent device (Cisco ...
2 votes
1 answer
79 views

Cisco snmp-server single user for multiple snmp versions

Attempting to maintain SNMP v2c compatibility while implementing SNMP v3 on cisco switch 5506cx. Would a user that was previously used for v2c see issues with v2c if it is added to a v3 group? For ...
1 vote
1 answer
87 views

Cisco Show Privilege via SNMP

How to get Cisco privilege level via SNMP? R1#show privilege Current privilege level is 15 Which MIB or OID?
1 vote
1 answer
263 views

Why got no response from xx.xx.xx.xx when adding @vlan to snmp command?

I want to retrieve host's mac addressed which connected to cisco switch. And I see a lot of people say that "snmpbulkwalk -v2c -cpublic@vlan hostname BRIDGE-MIB::dot1dTpFdbTable" can get the host's ...
2 votes
2 answers
3k views

IfInDiscards and IfOutDiscards counters

Could someone tell me what do ifinDiscards (.1.3.6.1.2.1.2.2.1.13) and ifOutDiscards (.1.3.6.1.2.1.2.2.1.14) exactly mean? Thanks.
4 votes
2 answers
537 views

Decreasing SNMP update timer on IOS-XR (CISCO ASR)

I've a case where i'm trying to poll SNMP information every 10 seconds from a Cisco IOS-XR devices (interfaces mib). Seems like CISCO IOS-XR updates SNMP information every 15secs, so sometimes ...
1 vote
1 answer
296 views

Is it possible to differentiate cisco ports on monitoring system via snmp?

I am managing some cisco switches in my monitoring software (zabbix), and it provides useful insights that I would like to monitor: Warning on link up / down Warning when ports are on half duplex ...
0 votes
1 answer
209 views

Cisco 3750: SNMP

On my Cisco 3750G, i have SNMPV3 enabled, this is working perfectly with Zabbix. I would like to separate production flows from supervision flows, Do you know if it's possible to enable SNMP ...

1
2 3 4 5