OID reference

ieee8021MstpTopologyChange

2.49.0.2.111.2.802.1.1.6.1.2.1.6

Description

In an MSTP Bridge, the Topology Change parameter value: true(1) if tcWhile is non-zero for any Port for the MSTI.

Full description and source information

Identification

Identifier and names

Parent
2.49.0.2.111.2.802.1.1.6.1.2.1 (ieee8021MstpEntry)
Node code
6
Node name
ieee8021MstpTopologyChange
Numeric OID
2.49.0.2.111.2.802.1.1.6.1.2.1.6
URN notation
urn:oid:2.49.0.2.111.2.802.1.1.6.1.2.1.6
Type
OBJECT-TYPE
ASN.1, OID-IRI and named path variants
ASN.1 notation

{2 49 0 2 111 2 802 1 1 6 1 2 1 6}

  • {joint-iso-itu-t(2) alerting(49) wmo(0) org(2) 111 2 802 1 ieee802dot1mibs(1) ieee8021MstpMib(6) ieee8021MstpObjects(1) ieee8021MstpTable(2) ieee8021MstpEntry(1) ieee8021MstpTopologyChange(6)}
  • {joint-iso-ccitt(2) alerting(49) wmo(0) org(2) 111 2 802 1 ieee802dot1mibs(1) ieee8021MstpMib(6) ieee8021MstpObjects(1) ieee8021MstpTable(2) ieee8021MstpEntry(1) ieee8021MstpTopologyChange(6)}
OID-IRI notation
  • /2/49/0/2/111/2/802/1/1/6/1/2/1/6
  • /Alerting/WMO/2/111/2/802/1/1/6/1/2/1/6
  • /Alerting/0/2/111/2/802/1/1/6/1/2/1/6
  • /Joint-ISO-ITU-T/49/0/2/111/2/802/1/1/6/1/2/1/6
Named path variants
  • /joint-iso-itu-t/alerting/wmo/org/111/2/802/1/ieee802dot1mibs/ieee8021MstpMib/ieee8021MstpObjects/ieee8021MstpTable/ieee8021MstpEntry/ieee8021MstpTopologyChange
  • /joint-iso-ccitt/alerting/wmo/org/111/2/802/1/ieee802dot1mibs/ieee8021MstpMib/ieee8021MstpObjects/ieee8021MstpTable/ieee8021MstpEntry/ieee8021MstpTopologyChange

Meaning

Descriptions

1 unique

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

In an MSTP Bridge, the Topology Change parameter value: true(1)
if tcWhile is non-zero for any Port for the MSTI.
Sources for this description

IEEE 802

Historical records

Additional source information

Information from IEEE 802 
ieee8021MstpTopologyChange OBJECT-TYPE
    SYNTAX      TruthValue
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "In an MSTP Bridge, the Topology Change parameter value: true(1)
         if tcWhile is non-zero for any Port for the MSTI."
    REFERENCE   "13.21"
    ::= { ieee8021MstpEntry 6 }

Registration

Registration authorities

First Registration Authority (inferred from ancestor 2.49.0.2)

Ms. Haleh Kootval

Current Registration Authority (inferred from ancestor 2.49.0)

Ms. Haleh Kootval

Siblings (14)

OIDNameDirect childrenDescendantsDescription
2.49.0.2.111.2.802.1.1.6.1.2.1.1 ieee8021MstpComponentId00 The component identifier is used to distinguish between the
multiple virtual bridge instances within a PBB. In simple
situations…
2.49.0.2.111.2.802.1.1.6.1.2.1.2 ieee8021MstpId00 In an MSTP Bridge, this parameter is the MSTID, i.e. the
identifier of a Spanning Tree (or MST) Instance.
2.49.0.2.111.2.802.1.1.6.1.2.1.3 ieee8021MstpBridgeId00 In an MSTP Bridge, the Bridge Identifier for the MSTI.
2.49.0.2.111.2.802.1.1.6.1.2.1.4 ieee8021MstpTimeSinceTopologyChange00 In an MSTP Bridge, count in seconds of the time elapsed since
tcWhile (13.21) was last non-zero for any Port for the MSTI.
2.49.0.2.111.2.802.1.1.6.1.2.1.5 ieee8021MstpTopologyChanges00 In an MSTP Bridge, count of the times tcWhile (13.21) has been
non-zero for any Port for the MSTI since the Bridge was powered
on…
2.49.0.2.111.2.802.1.1.6.1.2.1.7 ieee8021MstpDesignatedRoot00 In an MSTP Bridge, the Designated Root parameter value, i.e. the
Bridge Identifier of the Root Bridge for the MSTI.
2.49.0.2.111.2.802.1.1.6.1.2.1.8 ieee8021MstpRootPathCost00 In an MSTP Bridge, the Root Path Cost parameter value, i.e. the
path cost from the transmitting Bridge to the Root Bridge for
the…
2.49.0.2.111.2.802.1.1.6.1.2.1.9 ieee8021MstpRootPort00 In an MSTP Bridge, the Root Port parameter value, i.e. the Root
Port for the MSTI.
2.49.0.2.111.2.802.1.1.6.1.2.1.10 ieee8021MstpBridgePriority00 In an MSTP Bridge, the Bridge Priority parameter value for the
MSTI, i.e. the four most significant bits of the Bridge Identifie…
2.49.0.2.111.2.802.1.1.6.1.2.1.11 ieee8021MstpVids000 This object contains the first 1024 bits of the 4096 bit vector
indicating which VIDs are assigned to this MSTID. The high orde…
2.49.0.2.111.2.802.1.1.6.1.2.1.12 ieee8021MstpVids100 This object contains the second 1024 bits of the 4096 bit vector
indicating which VIDs are assigned to this MSTID. The high ord…
2.49.0.2.111.2.802.1.1.6.1.2.1.13 ieee8021MstpVids200 This object contains the third 1024 bits of the 4096 bit vector
indicating which VIDs are assigned to this MSTID. The high orde…
2.49.0.2.111.2.802.1.1.6.1.2.1.14 ieee8021MstpVids300 This object contains the fourth 1024 bits of the 4096 bit vector
indicating which VIDs are assigned to this MSTID. The high ord…
2.49.0.2.111.2.802.1.1.6.1.2.1.15 ieee8021MstpRowStatus00 The status of the row.

Read SNMPv2-TC (RFC2579) for an
explanation of the possible values this object can take.

The writable colum…