---
oid: "1.3.6.1.3.37.1.1.1.1"
short-description: "isisSysVersion OBJECT-TYPE"
last-modified: "2026-01-21"
parent-oid: "1.3.6.1.3.37.1.1.1"
---

## OID: `1.3.6.1.3.37.1.1.1.1`

```asn1
{iso(1) identified-organization(3) dod(6) internet(1) experimental(3) isisMIB(37) isisObjects(1) isisSystem(1) isisSysObject(1) isisSysVersion(1)}
```

### Description

```asn1
isisSysVersion OBJECT-TYPE
SYNTAX INTEGER {unknown(0), one(1)}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The version number of the IS-IS protocol that is implemented."
REFERENCE "{ISIS.aoi version (1)}"
DEFVAL {one}
```

**Classification:** MIB object for network management

### Supplementary information

Automatically extracted from Internet-Draft [`draft-ietf-isis-wg-mib-17`](https://datatracker.ietf.org/doc/html/draft-ietf-isis-wg-mib-17).

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