All MIBs › Fore-If-MIB › foreIfMtu
foreIfMtu
Module: Fore-If-MIB
OID (symbolic): Fore-If-MIB::foreIfMtu
OID (numeric): 1.3.6.1.4.1.326.1.15.2.1.1.1
Node type: OBJECT-TYPE
Type: Integer32
Access: read-write
Description: The size of the largest datagram which can be sent/received on the interface, specified in octets. For interfaces that are used for transmitting network datagrams, this is the size of the largest network datagram that can be sent on the interface. Currently this variable can be set for qaaX interfaces only.
What is foreIfMtu?
This value is the maximum transmission unit — the largest network datagram, in bytes, that this FORE Systems interface will send or accept — and on this platform it can only be changed on "qaaX" type interfaces. Admins adjust it to match the MTU used elsewhere on the network path, since a mismatch can cause large packets to be dropped or fragmented. For example, setting it to 9180 bytes would configure a jumbo-frame-capable ATM qaaX interface to carry larger payloads than the standard 1500-byte Ethernet MTU.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.326.1.15.2.1.1.1 snmpwalk -v2c -c public <target> Fore-If-MIB::foreIfMtu
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.326.1.15.2.1.1.1.1 snmpget -v2c -c public <target> Fore-If-MIB::foreIfMtu.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.326.1.15.2.1.1.1.1 i <value>
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OID Breakdown
Upper-level ancestors (9 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.326 | fore | COMMON-GOLF-MIB |
| 1.3.6.1.4.1.326.1 | admin | Fore-Common-MIB |
| 1.3.6.1.4.1.326.1.15 | foreIfExtension | Fore-Common-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.326.1.15.2 | foreIfGroup | Fore-If-MIB |
| 1.3.6.1.4.1.326.1.15.2.1 | foreIfTable | Fore-If-MIB |
| 1.3.6.1.4.1.326.1.15.2.1.1 | foreIfEntry | Fore-If-MIB |
| 1.3.6.1.4.1.326.1.15.2.1.1.1 | foreIfMtu | Fore-If-MIB |