I have to find the network flow through a particular port in a cisco 2960 switch. For this I have to write a code using SNMP and C# only. I am already in the middle of the project and I would like to add this feature too in my project. I have referred from the particular sit and am using the same library files to do it.
^http://www.snmpsharpnet.com/^
^http://www.cisco.com/c/en/us/support/docs/ip/simple-network-management-protocol-snmp/8141-calculate-bandwidth-snmp.html^
If anyone know the proper mib to find the network information/status to find the info, please help.
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What I have tried:
IF-MIB... details matter though.
You can correlate all OIDs to an interface name below by snmp walking ifName: 1.3.6.1.2.1.31.1.1.1.1.
High Speed interfaces
For high-speed interfaces (100Mbps or above) you should use 64-bit counters if the device supports them:
ifHCInOctets: 1.3.6.1.2.1.31.1.1.1.6 (64-bit Octets in counter)
ifHCOutOctets: 1.3.6.1.2.1.31.1.1.1.10 (64-bit Octets out counter)
ifHCInUcastPkts: 1.3.6.1.2.1.31.1.1.1.7 (64-bit Packets in counter)
ifHCOutUcastPkts: 1.3.6.1.2.1.31.1.1.1.11 (64-bit Packets out counter)
ifHighSpeed: 1.3.6.1.2.1.31.1.1.1.15 (An estimate of the interface's current bandwidth in units of 1Mbps)
Low Speed interfaces
Lower speed interfaces can get by with 32-bit counters. If you use 32-bit counters on high-speed interfaces, they can wrap quickly; a 10 Mbps stream of back-to-back, full-size packets causes ifInOctets to wrap in just over 57 minutes. At 100 Mbps, the minimum wrap time is 5.7 minutes, and at 1 Gbps, the minimum is 34 seconds Note 1
ifInOctets: 1.3.6.1.2.1.2.2.1.10 (32-bit Octets in counter)
ifOutOctets: 1.3.6.1.2.1.2.2.1.16 (32-bit Octets out counter)
ifInUcastPkts: 1.3.6.1.2.1.2.2.1.11 (32-bit Packets in counter)
ifOutUcastPkts: 1.3.6.1.2.1.2.2.1.17 (32-bit Packets out counter)
ifSpeed: 1.3.6.1.2.1.2.2.1.5 (Currently negotiated speed of the interface - Max: 4.294 Gbps)
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