Rev. 2 | |
SNMP interface | CD/CIM550.IOM |
13.2.2INTERFACE GROUP
This group provides the number of interfaces on a managed device and a table describing all interfaces.
The ifNumber OID is the number of network interfaces present on this system. On a cim550 the ifNumber should be 3 corresponding to the Ethernet, Satellite, and Loopback interfaces.
13.2.2.1THE INTERFACES TABLE
| Table |
OID | Description |
ifIndex | Unique value for each interface. The cim550 gives the Ethernet, |
| Satellite, and Loopback interfaces a value of 1, 2, or 3. |
ifDescr | Textual string containing information about the interface. The |
| Ethernet interface is “fei0”. The Loopback interface is “lo0”. The |
| Satellite interface is “hdl1”. |
ifType | Link protocol for the interface. The Ethernet interface is set to |
| |
| softwareLoopback(24). The Satellite Interface is |
| propPointToPointSerial(22). |
ifMtu | Size of the largest datagram which can be sent/received on the |
| interface, specified in octets. For the Ethernet and Satellite |
| Interfaces, the MTU is 1500. |
ifSpeed | Estimate of the interface's current bandwidth in bits per second. |
| The Ethernet Interface can be set to ether 100000000 (100 Mbps) |
| or 10000000 (10 Mbps). If the Ethernet driver is set to “Auto” then |
| 100000000 will be returned. The Satellite Interface’s ifSpeed |
| corresponds to the data rate of the transmitter only. The |
| transmitter’s ifSpeed can range from 2400 (2.4 Kbps) to 2048000 |
| (2.048 Mbps). If the cim550 is a |
| zero. |
ifPhyAddress | Interface's address at the datalink layer. For the Ethernet Interface |
| this corresponds to the MAC address (6 bytes). For the Satellite |
| and Loopback Interface this value is undefined. |
ifAdminSate | Desired state of the interface. For the cim550, the interfaces |
| cannot be changed from an up(1) status. |
ifOperState | Current operational state of the interface. For the cim550, the |
| interfaces will remain in an up(1) status. |
ifLastChange | Value of sysUpTime at the time the interface entered its current |
| operational state. For the cim550, this will remain zero, |
| corresponding to boot time. |
ifInOctets | Total number of octets received on the interface. This statistic is |
| counted for both the Ethernet and Satellite interfaces. |
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