---
oid: "1.3.6.1.4.1.9.5.1.9.3.1.9"
short-description: "vlanPortIslPriorityVlans OBJECT-TYPE"
last-modified: "2018-01-07"
parent-oid: "1.3.6.1.4.1.9.5.1.9.3.1"
---

## OID: `1.3.6.1.4.1.9.5.1.9.3.1.9`

```asn1
{iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) 9 workgroup(5) ciscoStackMIB(1) vlanGrp(9) vlanPortTable(3) vlanPortEntry(1) vlanPortIslPriorityVlans(9)}
```

### Description

```asn1
vlanPortIslPriorityVlans OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (0..128))
MAX-ACCESS read-write
STATUS current
DESCRIPTION "An indication of which Virtual LANs have a better
dot1dStpPortPriority value. This object can be
used to perform load balancing on Inter-Switch
Links via spanning tree. An Inter-Switch Link has
two dot1dStpPortPriority values which are shared
by all the Virtual LANs on the link. The Virtual
LANs indicated by this object have priority
over the other Virtual LANs on the link.
This is an octet string value with bits set to
indicate priority VLANs. It can be interpreted as
a sum of f(x) as x goes from 0 to 1023, where
f(x) = 0 for a VLAN x which does not have priority
and f(x) = exp(2, x) for a VLAN x which has
priority.
Setting the dot1dStpPortPriority value for any of
the Virtual LANs indicated by this object causes
the dot1dStpPortPriority value for all the Virtual
LANs indicated by this object to be set to the
same value.
Setting the dot1dStpPortPriority value for any
other Virtual LAN causes the dot1dStpPortPriority
value for all other Virtual LANs to be set to the
same value."
```

**Classification:** MIB object for network management

### Child OIDs

No child OID

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[Terms of use](https://oid-base.com/disclaimer.htm.md)

**Note to implementers:**: The OID repository is constantly updated but does not necessarily store the latest (or most accurate) version of this formal description. For an implementation, it is recommended to search the web for a more recent description. If this is the case, please update the above description.