Submit a ticketCall us

Announcing NCM 7.7
With NCM 7.7, you can examine the rules that make up an access control list for a Cisco ASA device. Then you can apply filters to display only rules that meet the specified criteria, order the rules by line number or by the hit count, and much more.
See new features and improvements.

Home > Success Center > Network Performance Monitor (NPM) > How does NPM calculate interface bandwidth?

How does NPM calculate interface bandwidth?

Table of contents
Created by Melanie Boyd, last modified by MindTouch on Jun 23, 2016

Views: 289 Votes: 0 Revisions: 4

Overview

This article describes how NPM calculates interface bandwidth, and what conversion factors it uses.

Environment

  • Orion platform, all versions

Detail

To determine interface bandwidth, Orion NPM polls the following object identifiers (OIDs):

Information Type OID Name OID Value
Bandwidth - 32-bit Counter ifInOctets 1.3.6.1.2.1.2.2.1.10
Bandwidth - 32-bit Counter ifInUcastPkts 1.3.6.1.2.1.2.2.1.11
Bandwidth - 32-bit Counter ifInNUcastPkts 1.3.6.1.2.1.2.2.1.12
Bandwidth - 32-bit Counter ifOutOctets 1.3.6.1.2.1.2.2.1.16
Bandwidth - 32-bit Counter ifOutUcastPkts 1.3.6.1.2.1.2.2.1.17
Bandwidth - 32-bit Counter ifOutNUcastPkts 1.3.6.1.2.1.2.2.1.18
     
Bandwidth - 64-bit Counter ifHCInOctets 1.3.6.1.2.1.31.1.1.1.6
Bandwidth - 64-bit Counter ifHCInUcastPkts 1.3.6.1.2.1.31.1.1.1.7
Bandwidth - 64-bit Counter ifHCInMulticastPkts 1.3.6.1.2.1.31.1.1.1.8
Bandwidth - 64-bit Counter ifHCOutOctets 1.3.6.1.2.1.31.1.1.1.10
Bandwidth - 64-bit Counter ifHCOutUcastPkts 1.3.6.1.2.1.31.1.1.1.11
Bandwidth - 64-bit Counter ifHCOutMulticastPkts 1.3.6.1.2.1.31.1.1.1.12

For more information about the OIDs Orion NPM polls for interface statistics, see this article.

This polled data is provided in terms of octets. Orion use the following conversion factors to derive kilobytes (KB), megabytes (MB), and gigabytes (GB):

  • 1 KB = 1,000 octets
  • 1 MB = 1,000 KB = 1,000,000 octets
  • 1 GB = 1,000 MB = 1,000,000 KB = 1,000,000,000 octets

 

 

 

Last modified
22:25, 22 Jun 2016

Tags

Classifications

Public