Interfaces Monitoring
This is a very powerful group. It has only a variable(ifNumber) and a table(ifTable). It OID is 1.3.6.1.2.1.2(mib.interfaces).
The variable ifNumber is a read-only INTEGER wich displays the number of network interfaces on a system.
The table ifTable is a list of interfaces entries (ifEntry). It has the number entries specified in ifNumbers. Each ifEntry has the following variables:
OID |
Name |
DataType |
Writable |
Description |
1 |
ifIndex |
INTEGER |
no |
The index of the interface |
2 |
ifDescr |
DisplayString |
no |
The description of the interface |
3 |
ifOutQLen |
Counter |
no |
Length of output packets queue |
4 |
ifOutErrors |
Counter |
no |
Number of sent packets discarded due to any error was found |
5 |
ifOutDiscards |
Counter |
no |
Number of sent packets discarded even though no error was detected |
6 |
ifOutNUcastPkts |
Counter |
no |
Total number of nounicast packets sent from a higher layer protocol |
7 |
ifOutUcastPkts |
Counter |
no |
Total number of unicast packets sent from a higher layer protocol |
8 |
ifOutOctets |
Counter |
no |
Total number of sent bytes |
9 |
ifInUnknownProtos |
Counter |
no |
Displays the total number of received packets discarded because an unknown protocol was used |
10 |
ifInDiscards |
Counter |
no |
Total number of discarded packets even though no error was detected |
11 |
ifInNUcastPkts |
Counter |
no |
Number of nonunicast packets received to a higher layer protocol
|
12 |
ifInUcastPkts |
Counter |
no |
Total number of unicast packets received to a higher layer protocol
|
13 |
ifInOctets |
Counter |
no |
Total number of bytes received |
14 |
ifLastChange |
TimeTicks |
no |
Displays the value found in sysUpTime when the status of the interface changed. |
15 |
ifOperStatus |
INTEGER |
no |
Current status of the interface. It can be 1 to pass all packets, 2 to become down and 3 to enter the testing mode |
16 |
ifAdminStatus |
INTEGER |
yes |
Desired status of the interface. It can be 1 to pass all packets, 2 to become down and 3 to enter the testing mode
|
17 |
ifPhysAddress |
PhysAddress |
no |
Physical address of the interface |
18 |
ifSpeed |
Gauge |
no |
The current bandwith of the interface in bits/sec |
19 |
ifMtu |
INTEGER |
no |
The largest IP datagram this interface can send or receive |
20 |
ifType |
INTEGER |
no |
Type of the interface, like: 5(X.25), 6(Ethernet CSMA-CD), 7(802.3 Ethernet), 9(802.5 token ring), 23(PPP). Another values can be found at The Internet Task Force - Management Information Base for Network Management of TCP/IP-based internets: MIB-II
|
21 |
ifSpecific |
ObjectID |
no |
A reference to MIB definitions specific to the particular type of media being used to realize the interface. If this interface is realized by ethernet, this object will reference to a document defining objects specific to ethernet |
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