OID reference

ifMainMtu

1.3.6.1.4.1.2076.27.1.4.1.3

Description

The MTU for the interface as shown to the higher interface sub-layer (this value should not include the encapsulation or header added by the interface). If IP is operating over the interface, then this value indicates the IP MTU over this interface. For changing the MTU of any interface, the interface must be brought …

Full description and source information

Identification

Identifier and names

Parent
1.3.6.1.4.1.2076.27.1.4.1 (ifMainEntry)
Node code
3
Node name
ifMainMtu
Category
SNMP management object
Numeric OID
1.3.6.1.4.1.2076.27.1.4.1.3
URN notation
urn:oid:1.3.6.1.4.1.2076.27.1.4.1.3
ASN.1, OID-IRI and named path variants
ASN.1 notation

{1 3 6 1 4 1 2076 27 1 4 1 3}

  • {iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprises(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) identified-organization(3) dod(6) internet(1) private(4) ldap-enterprise(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) identified-organization(3) dod(6) internet(1) private(4) vendor-objects(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) org(3) dod(6) internet(1) private(4) enterprise(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) org(3) dod(6) internet(1) private(4) enterprises(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) org(3) dod(6) internet(1) private(4) ldap-enterprise(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) org(3) dod(6) internet(1) private(4) vendor-objects(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) iso-identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) iso-identified-organization(3) dod(6) internet(1) private(4) enterprises(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) iso-identified-organization(3) dod(6) internet(1) private(4) ldap-enterprise(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) iso-identified-organization(3) dod(6) internet(1) private(4) vendor-objects(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) iso-organization(3) dod(6) internet(1) private(4) enterprise(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) iso-organization(3) dod(6) internet(1) private(4) enterprises(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) iso-organization(3) dod(6) internet(1) private(4) ldap-enterprise(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
  • {iso(1) iso-organization(3) dod(6) internet(1) private(4) vendor-objects(1) 2076 fscfa(27) if(1) ifMainTable(4) ifMainEntry(1) ifMainMtu(3)}
OID-IRI notation
  • /1/3/6/1/4/1/2076/27/1/4/1/3
  • /ISO/Identified-Organization/6/1/4/1/2076/27/1/4/1/3
  • /ISO/3/6/1/4/1/2076/27/1/4/1/3
Named path variants
  • /iso/identified-organization/dod/internet/private/enterprise/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/identified-organization/dod/internet/private/enterprises/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/identified-organization/dod/internet/private/ldap-enterprise/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/identified-organization/dod/internet/private/vendor-objects/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/org/dod/internet/private/enterprise/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/org/dod/internet/private/enterprises/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/org/dod/internet/private/ldap-enterprise/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/org/dod/internet/private/vendor-objects/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/iso-identified-organization/dod/internet/private/enterprise/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/iso-identified-organization/dod/internet/private/enterprises/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/iso-identified-organization/dod/internet/private/ldap-enterprise/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/iso-identified-organization/dod/internet/private/vendor-objects/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/iso-organization/dod/internet/private/enterprise/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/iso-organization/dod/internet/private/enterprises/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/iso-organization/dod/internet/private/ldap-enterprise/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu
  • /iso/iso-organization/dod/internet/private/vendor-objects/2076/fscfa/if/ifMainTable/ifMainEntry/ifMainMtu

SNMP properties

Value type
Integer32
Maximum access defined by MIB
read-create
Status in MIB
current

Using this OID with SNMP

At least one MIB declaration places this object in a table row. A value belongs to a row instance; its suffix depends on the row's INDEX or AUGMENTS definition. The index encoding is not inferred here.

Published row index: ifMainIndex.

snmpwalk [connection options] DEVICE .1.3.6.1.4.1.2076.27.1.4.1.3

Replace the placeholders with your connection and authentication options. Available permissions and device support can differ from the MIB.

Properties come from available MIB definitions. Actual device support and access can differ. See source records below for original files and qualifications.

The displayed source records contain one distinct definition. Compare its source records.

ifMainMtu            OBJECT-TYPE
         SYNTAX            Integer32
         MAX-ACCESS        read-create
         STATUS            current
         DESCRIPTION
            "The MTU for the interface as shown to the higher
            interface sub-layer (this value should not include
            the encapsulation or header added by the interface).
            If IP is operating over the interface, then this 
            value indicates the IP MTU over this interface.
            
            For changing the MTU of any interface, the interface
            must be brought down first - changing MTU while the
            interface is administratively up is not permitted.
            
            If not specified during interface creation, a default
            value is assigned based on the ifMainType given to
            the particular interface.
            
            While configuring for logical VLAN interfaces, care
            should be taken to, configure this value as the
            lowest of the MTU values of the member ports."
         ::= { ifMainEntry 3 }

Meaning

Descriptions

1 unique

Identical descriptions are grouped. Different wording and device-specific notes are retained.

The MTU for the interface as shown to the higher interface sub-layer (this value should not include the encapsulation or header added by the interface). If IP is operating over the interface, then this value indicates the IP MTU over this interface. For changing the MTU of any interface, the interface must be brought down first - changing MTU while the interface is administratively up is not permitted. If not specified during interface creation, a default value is assigned based on the ifMainType given to the particular interface. While configuring for logical VLAN interfaces, care should be taken to, configure this value as the lowest of the MTU values of the member ports.

Sources for this description

Multiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community)Belden, GarrettCom and Hirschmann IT official standalone MIBs

See 1 matching source record

Evidence

Source records

1 records

Matching descriptions are grouped; open a group to compare definitions and supporting files.

Records for description 1Multiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community), Belden, GarrettCom and Hirschmann IT official standalone MIBs1 record · 2 sources

Description 1

ifMainMtu · currentMultiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community), Belden, GarrettCom and Hirschmann IT official standalone MIBs2 sources

Status in source: current.

Names: ifMainMtu

Technical details
{
  "smi_kind": "OBJECT-TYPE",
  "definition": [
    "ifMainMtu",
    "OBJECT-TYPE",
    "SYNTAX",
    "Integer32",
    "MAX-ACCESS",
    "read-create",
    "STATUS",
    "current",
    "DESCRIPTION",
    "\"The MTU for the interface as shown to the higher interface sub-layer (this value should not include the encapsulation or header added by the interface). If IP is operating over the interface, then this value indicates the IP MTU over this interface. For changing the MTU of any interface, the interface must be brought down first - changing MTU while the interface is administratively up is not permitted. If not specified during interface creation, a default value is assigned based on the ifMainType given to the particular interface. While configuring for logical VLAN interfaces, care should be taken to, configure this value as the lowest of the MTU values of the member ports.\"",
    "::=",
    "{",
    "ifMainEntry",
    "3",
    "}"
  ],
  "syntax_tree": [
    [
      "SimpleSyntax",
      "Integer32"
    ],
    null,
    [
      "MaxAccessPart",
      "read-create"
    ],
    [
      "Status",
      "current"
    ],
    [
      "DESCRIPTION",
      "The MTU for the interface as shown to the higher interface sub-layer (this value should not include the encapsulation or header added by the interface). If IP is operating over the interface, then this value indicates the IP MTU over this interface. For changing the MTU of any interface, the interface must be brought down first - changing MTU while the interface is administratively up is not permitted. If not specified during interface creation, a default value is assigned based on the ifMainType given to the particular interface. While configuring for logical VLAN interfaces, care should be taken to, configure this value as the lowest of the MTU values of the member ports."
    ],
    null,
    null,
    null,
    null
  ]
}

Registration

Registration authorities

First Registration Authority (inferred from ancestor 1.3.6.1.4.1.2076)

Division Products

Siblings (23)

OIDNameDirect childrenDescendantsDescription
1.3.6.1.4.1.2076.27.1.4.1.1 ifMainIndex00
1.3.6.1.4.1.2076.27.1.4.1.2 ifMainType00
1.3.6.1.4.1.2076.27.1.4.1.4 ifMainAdminStatus00
1.3.6.1.4.1.2076.27.1.4.1.5 ifMainOperStatus00
1.3.6.1.4.1.2076.27.1.4.1.6 ifMainEncapType00
1.3.6.1.4.1.2076.27.1.4.1.7 ifMainBrgPortType00
1.3.6.1.4.1.2076.27.1.4.1.8 ifMainRowStatus00
1.3.6.1.4.1.2076.27.1.4.1.9 ifMainSubType00
1.3.6.1.4.1.2076.27.1.4.1.10 ifMainNetworkType00
1.3.6.1.4.1.2076.27.1.4.1.11 ifMainWanType00
1.3.6.1.4.1.2076.27.1.4.1.12 ifMainDesc00
1.3.6.1.4.1.2076.27.1.4.1.13 ifMainStorageType00
1.3.6.1.4.1.2076.27.1.4.1.14 ifMainExtSubType00
1.3.6.1.4.1.2076.27.1.4.1.15 ifMainPortRole00
1.3.6.1.4.1.2076.27.1.4.1.16 ifMainUfdOperStatus00
1.3.6.1.4.1.2076.27.1.4.1.17 ifMainUfdGroupId00
1.3.6.1.4.1.2076.27.1.4.1.18 ifMainUfdDownlinkDisabledCount00
1.3.6.1.4.1.2076.27.1.4.1.19 ifMainUfdDownlinkEnabledCount00
1.3.6.1.4.1.2076.27.1.4.1.20 ifMainDesigUplinkStatus00
1.3.6.1.4.1.2076.27.1.4.1.21 ifMainEncapDot1qVlanId00
1.3.6.1.4.1.2076.27.1.4.1.22 ifMainNeighborId00
1.3.6.1.4.1.2076.27.1.4.1.23 ifMainName00
1.3.6.1.4.1.2076.27.1.4.1.24 ifMainPrevDesc00