IEEE8021-TSN-REMOTE-MANAGEMENT-MIB

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Organization: IEEE 802.1 Working Group

Last Updated: 2018-10-04

Category: Standard: IEEE 802

Description: IEEE 802.1 MIB for Time-Sensitive Networking (TSN) remote management providing centralized configuration of TSN stream reservations.

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What Is IEEE8021-TSN-REMOTE-MANAGEMENT-MIB?

IEEE8021-TSN-REMOTE-MANAGEMENT-MIB is a vendor-neutral IEEE 802.1 standards MIB supporting centralized/remote management of Time-Sensitive Networking (TSN) bridges under the IEEE 802.1Q Stream Reservation Protocol (SRP) enhancements, letting a central network controller retrieve per-bridge delay characteristics needed to compute deterministic paths for TSN streams. It exposes bridge-level and per-port propagation and queuing delay data, including independent and dependent delay minimums/maximums and transmission propagation delay, organized by ingress/egress port pairs. For monitoring purposes it is used to verify the software/topology state a TSN controller relies on, confirming per-port delay values are within expected bounds and that static tree support is correctly reported, since incorrect delay data would cause a centralized scheduler to compute infeasible or jitter-prone TSN streams. It depends on and extends the base IEEE 802.1Q Bridge MIB and interacts with Stream Reservation Protocol and Scheduled Traffic (802.1Qbv) mechanisms. It is typically deployed in centrally-managed TSN network fabrics such as industrial control, automotive, or avionics networks using a fully-centralized configuration model. Engineers implementing or auditing this functionality typically reference the IEEE8021-TSN-REMOTE-MANAGEMENT-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in IEEE8021-TSN-REMOTE-MANAGEMENT-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

Time-Sensitive Networking (TSN) bridges/switches
vendor-neutral, standards-based MIB, not tied to a specific manufacturer

Monitoring Examples

A central TSN controller polls ieee8021TsnRemoteMgmtBridgeDelayTable/Entry for a given ingress/egress port pair to retrieve ieee8021TsnRemoteMgmtIndependentDelayMin/Max and DependentDelayMin/Max, using these bounds to compute whether a proposed stream reservation can meet its latency budget. The ieee8021TsnRemoteMgmtPropagationDelayTable/Entry exposes ieee8021TsnRemoteMgmtTxPropagationDelay per link, letting the controller detect a cable or port change that has altered measured propagation delay. ieee8021TsnRemoteMgmtStaticTreesSupported tells the controller whether the bridge can support pre-computed static forwarding trees for TSN streams.

What Can Be Monitored

bridge ingress/egress port delay bounds
independent and dependent queuing delay
link propagation delay
static tree support capability

Imported Objects

From IEEE8021-BRIDGE-MIB

ieee8021BridgeBaseComponentId	OBJECT-TYPE
ieee8021BridgeBasePort	OBJECT-TYPE
ieee8021BridgeTrafficClass	OBJECT-TYPE

From IEEE8021-Q-BRIDGE-MIB

ieee8021QBridgeVlanIndex

OBJECT-TYPE

From IEEE8021-TC-MIB

IEEE8021BridgePortNumber
ieee802dot1mibs	OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using ieee8021TsnRemoteMgmtMrpIndicationChangeCounter OID:

Select a device implementing IEEE8021-TSN-REMOTE-MANAGEMENT-MIB as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type ieee8021TsnRemoteMgmtMrpIndicationChangeCounter into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. This attribute is used to provide the number of changes done to the ieee8021TsnRemoteMgmtMrpIndicationList. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter64-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
ieee8021TsnRemoteMgmtMib	1.3.111.2.802.1.1.32			The Bridge MIB module for managing devices that support the IEEE Std 802.1Q Stream Reservation Protocol Enhancements and Performance Improvements. Unless otherwise indicated, the references in this MIB module are to IEEE Std 802.1Q. Copyright (C) IEEE (2018). This version of this MIB module is part of IEEE802.1Q; see the draft itself for full legal notices.
ieee8021TsnRemoteMgmtNotifications	1.3.111.2.802.1.1.32.0
ieee8021TsnRemoteMgmtObjects	1.3.111.2.802.1.1.32.1
ieee8021TsnRemoteMgmtBridgeDelay	1.3.111.2.802.1.1.32.1.1
ieee8021TsnRemoteMgmtBridgeDelayTable	1.3.111.2.802.1.1.32.1.1.1		not-accessible	A table containing a set of parameters necessary to determine the delay of frames as they pass through the Bridge's relay. There is one Bridge Delay managed object per Port pair of a Bridge component. The Port pair consists of three indices, an ingress Port followed by an egress Port and a traffic class associated with the Port pair.
ieee8021TsnRemoteMgmtBridgeDelayEntry	1.3.111.2.802.1.1.32.1.1.1.1		not-accessible	A list of objects containing information necessary to determine the delay of frames as they pass through the Bridge's relay.
IEE ieee8021TsnRemoteMgmtBridgeIngressPort	1.3.111.2.802.1.1.32.1.1.1.1.1	IEEE8021BridgePortNumber	not-accessible	...
IEE ieee8021TsnRemoteMgmtBridgeEgressPort	1.3.111.2.802.1.1.32.1.1.1.1.2	IEEE8021BridgePortNumber	not-accessible	...
U32 ieee8021TsnRemoteMgmtIndependentDelayMin	1.3.111.2.802.1.1.32.1.1.1.1.3	Unsigned32	read-only	This attribute provides the minimum delay independent from frame length for a frame to forward from ingress port to egress port. The delay begins when the message timestamp point of the ingress frame passes the reference plane marking the boundary between the network media and PHY. The delay ends when the message timestamp point of the egress frame passes the reference plane marking the boundary between the network media and PHY. The message timestamp point is specified by IEEE Std 802.1AS for various media, near the start of the frame. Note: This delay includes all aspects of length-independent delay for a frame that is forwarded, including handling of error conditions.
U32 ieee8021TsnRemoteMgmtIndependentDelayMax	1.3.111.2.802.1.1.32.1.1.1.1.4	Unsigned32	read-only	This attribute provides the maximum delay independent from frame length for a frame to forward from ingress port to egress port. The delay begins when the message timestamp point of the ingress frame passes the reference plane marking the boundary between the network media and PHY. The delay ends when the message timestamp point of the egress frame passes the reference plane marking the boundary between the network media and PHY. The message timestamp point is specified by IEEE Std 802.1AS for various media, near the start of the frame.
U32 ieee8021TsnRemoteMgmtDependentDelayMin	1.3.111.2.802.1.1.32.1.1.1.1.5	Unsigned32	read-only	This attribute provides the minimum length-dependent delay from ingress port to egress port. It provides the portion of delay that is dependent on frame length, where frame length is the number of octets that transfer across the MAC Service interfaces. Each length-dependent delay attribute specifies the time for a single octet of the frame to transfer from ingress to egress.
U32 ieee8021TsnRemoteMgmtDependentDelayMax	1.3.111.2.802.1.1.32.1.1.1.1.6	Unsigned32	read-only	This attribute provides the maximum length-dependent delay from ingress port to egress port. It provides the portion of delay that is dependent on frame length, where frame length is the number of octets that transfer across the MAC Service interfaces. Each length-dependent delay attribute specifies the time for a single octet of the frame to transfer from ingress to egress.
ieee8021TsnRemoteMgmtPropagationDelay	1.3.111.2.802.1.1.32.1.2
ieee8021TsnRemoteMgmtPropagationDelayTable	1.3.111.2.802.1.1.32.1.2.1		not-accessible	A table containing a set of parameters necessary to determine the delay along the network media (e.g. cable) for a frame transmitted from the specifed Port of this Bridge to the neighboring Port on a different Bridge. There is one Propagation Delay managed object per egress Port of a Bridge.
ieee8021TsnRemoteMgmtPropagationDelayEntry	1.3.111.2.802.1.1.32.1.2.1.1		not-accessible	A list of objects containing information necessary to determine the delay along the network media (e.g. cable) for a frame transmitted from the specifed Port of this Bridge to the neighboring Port on a different Bridge.
U32 ieee8021TsnRemoteMgmtTxPropagationDelay	1.3.111.2.802.1.1.32.1.2.1.1.1	Unsigned32	read-only	This attribute provides the transmission propagation delay. The propagation delay begins when the message timestamp point of an egress frame passes the reference plane marking the boundary between the network media and PHY. It ends when the message timestamp point of an ingress frame on the neighboring Bridge's Port passes the reference plane marking the boundary between the network media and PHY. The message timestamp point is specified by IEEE Std 802.1AS for various media.
ieee8021TsnRemoteMgmtStaticTrees	1.3.111.2.802.1.1.32.1.3
T/F ieee8021TsnRemoteMgmtStaticTreesSupported	1.3.111.2.802.1.1.32.1.3.1	TruthValue	read-only	This attribute is used by the TSN CNC to determine that TE-MSTID is supported by the Bridge.
ieee8021TsnRemoteMgmtMrpExternalControl	1.3.111.2.802.1.1.32.1.4
ieee8021TsnRemoteMgmtMsrpMrpExternalControlTable	1.3.111.2.802.1.1.32.1.4.1		not-accessible	A table containing a set of parameters necessary for a network manager to 1) disable MRP attribute propagation (MAP) for the MRP Participant of a bridge port, 2) read MRP attribute registrations that the MRP Participant receives, and 3) write MRP attribute values for the MRP Participant to declare.
ieee8021TsnRemoteMgmtMsrpMrpExternalControlEntry	1.3.111.2.802.1.1.32.1.4.1.1		not-accessible	A list of objects necessary for a network manager to 1) disable MRP attribute propagation (MAP) for the MRP Participant of a bridge port, 2) read MRP attribute registrations that the MRP Participant receives, and 3) write MRP attribute values for the MRP Participant to declare.
T/F ieee8021TsnRemoteMgmtMsrpMrpExternalControl	1.3.111.2.802.1.1.32.1.4.1.1.1	TruthValue	read-write	This attribute is used to indicate, whether MRP attributes are propagated on the MRP Participant, according to the specifications for MRP Attribute Propagation (MAP) and specifications of the MRP Application. When true(1), the MRP Participant is removed from the MRP Application's MAP Context. The MRP Participant performs all other aspects of MRP, including MRP operation, MRP specifications, and MRPDU encodings. The application component stores MAD indications for registration received on the Port, and invokes MAD requests for declarations on the Port. When false(2), MRP attributes propagate on the MRP Participant according to the specifications for MRP Attribute Propagation (MAP) and specifications of the MRP Application. Ports with the externalControl attribute false(2) are considered as candidates for the MRP Application's MAP Context. The remaining attributes of this subtree are ignored by Ports with the externalControl attribute false(2). This managed object applies to the MSRP application. A table is provided for each MAP Context (VLAN ID).
OCT ieee8021TsnRemoteMgmtMrpIndicationList	1.3.111.2.802.1.1.32.1.4.1.1.2	OCTET STRING	read-only	This attribute is used to store the list of all joined MRP attributes for the MRP Participant when the ieee8021TsnRemoteMgmtMrpExternalControl attribute is true(1). When the ieee8021TsnRemoteMgmtMrpExternalControl attribute is false(2), this attribute is ignored by the MRP Participant, and returns the empty octet string.
U32 ieee8021TsnRemoteMgmtMrpIndicationListLength	1.3.111.2.802.1.1.32.1.4.1.1.3	Unsigned32	read-only	This attribute is used to provide the number of octets in the ieee8021TsnRemoteMgmtMrpIndicationListLength attribute. When the ieee8021TsnRemoteMgmtMrpExternalControl attribute is false(2), this attribute returns zero.
C64 ieee8021TsnRemoteMgmtMrpIndicationChangeCounterEx	1.3.111.2.802.1.1.32.1.4.1.1.4	Counter64	read-only	This attribute is used to provide the number of changes done to the ieee8021TsnRemoteMgmtMrpIndicationList. When the ieee8021TsnRemoteMgmtMrpExternalControl attribute is false(2), this attribute returns zero.
OCT ieee8021TsnRemoteMgmtMrpAdminRequestList	1.3.111.2.802.1.1.32.1.4.1.1.5	OCTET STRING	read-only	This attribute is used to provide the administrative value of the current list of MAD requests for the MRP Participant (operRequestList). Each entry in this attribute is encoded as the attribute_type parameter as a single octet, followed by the length of the attribute_value parameter as a single octet, followed by a sequence of octets for the attribute_value parameter. When the ieee8021TsnRemoteMgmtMrpExternalControl attribute is true(1), this attribute is copied to the ieee8021TsnRemoteMgmtMrpOperRequestList attribute as soon as possible according to the implementation. When the ieee8021TsnRemoteMgmtMrpExternalControl attribute is false(2), this attribute is ignored by the MRP Participant, but it retains its value.
U32 ieee8021TsnRemoteMgmtMrpAdminRequestListLength	1.3.111.2.802.1.1.32.1.4.1.1.6	Unsigned32	read-only	This attribute is used to provide the administrative value for the number of octets in the ieee8021TsnRemoteMgmtMrpAdminRequestList attribute. When the ieee8021TsnRemoteMgmtMrpExternalControl attribute is true(1), this attribute is copied to the ieee8021TsnRemoteMgmtMrpOperRequestListLength attribute at the same time that the ieee8021TsnRemoteMgmtMrpAdminRequestList attribute is copied to the ieee8021TsnRemoteMgmtMrpOperRequestList attribute. When the ieee8021TsnRemoteMgmtMrpExternalControl attribute is false(2), this attribute is ignored by the MRP Participant, but it retains its value.
OCT ieee8021TsnRemoteMgmtMrpOperRequestList	1.3.111.2.802.1.1.32.1.4.1.1.7	OCTET STRING	read-only	This attribute is used to proivde the operational value of the current list of MAD requests for the MRP Participant.
U32 ieee8021TsnRemoteMgmtMrpOperRequestListLength	1.3.111.2.802.1.1.32.1.4.1.1.8	Unsigned32	read-only	This attribute is used to provide the operational value of the ieee8021TsnRemoteMgmtMrpAdminRequestListLength attribute, and it is copied at the same time that ieee8021TsnRemoteMgmtMrpAdminRequestList attribute is copied to ieee8021TsnRemoteMgmtMrpOperRequestList.
ieee8021TsnRemoteMgmtConformance	1.3.111.2.802.1.1.32.2
ieee8021TsnRemoteMgmtCompliances	1.3.111.2.802.1.1.32.2.1
ieee8021TsnRemoteMgmtCompliance	1.3.111.2.802.1.1.32.2.1.1			The compliance statement for devices supporting TSN Remote management. Support of the objects defined in the IEEE8021-TSN REMOTE MANAGEMENT MIB also requires support of the IEEE8021-BRIDGE-MIB; the provisions of 17.3.2 apply to implementations claiming support of the IEEE8021-TSN REMOTE MANAGEMENT MIB.
ieee8021TsnRemoteMgmtGroups	1.3.111.2.802.1.1.32.2.2
ieee8021TsnRemoteMgmtBridgeDelayGroup	1.3.111.2.802.1.1.32.2.2.1			Objects that define the delay of frames as they pass through the Bridge's relay.
ieee8021TsnRemoteMgmtPropagationDelayGroup	1.3.111.2.802.1.1.32.2.2.2			Objects that define delay of frames along the network media (e.g. cable).
ieee8021TsnRemoteMgmtStaticTreesGroup	1.3.111.2.802.1.1.32.2.2.3			Objects that define static tree support.
ieee8021TsnRemoteMgmtMrpExternalControlGroup	1.3.111.2.802.1.1.32.2.2.4			Objects that define configuration of MRP External control.

RFC description

Supports IEEE 802.1Q Stream Reservation Protocol enhancements and TSN remote management for bridges.

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