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What's a MIB?

A MIB (Management Information Base) is a structured document that defines the data a device exposes over SNMP — things like interface counters, system uptime, or CPU load. Each module declares a set of named objects, organized into a tree.

What's SNMP?

SNMP (Simple Network Management Protocol) is how network devices — routers, switches, servers — report status and statistics to monitoring tools. It's the protocol; MIBs are the vocabulary it uses to describe what's being asked for.

What's an OID?

An OID (Object Identifier) is the numeric address of one piece of data in a MIB — a dotted sequence like 1.3.6.1.2.1.1.1, read from the root of a global tree down to one specific object. Names are easier to read; OIDs are what's actually sent over the wire.

Try it: sysDescr (1.3.6.1.2.1.1.1) →

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PW-TC-STD-MIB

13 objects

This MIB module defines TEXTUAL-CONVENTIONS for concepts used in pseudowire edge-to-edge networks. Copyright (c) 2009 IETF Trust and the persons identified as authors of the code. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name of Internet Society, IETF or IETF Trust, nor the names of specific contributors, may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. This version of this MIB module is part of RFC 5542; see the RFC itself for full legal notices.

Imported Objects

SNMPv2-SMI	mib-2 MODULE-IDENTITY Unsigned32
SNMPv2-TC	TEXTUAL-CONVENTION

OID	Name	Access	Status	Description
1.3.6.1.2.1.188	IdentitypwTcStdMIB			This MIB module defines TEXTUAL-CONVENTIONS for concepts used in pseudowire edge-to-edge networks. Copyright (c) 2009 IETF Trust and the persons identified as …

Type Definitions

Name	Syntax	Status	Description
PwAttachmentIdentifierType	OCTET STRING (SIZE (0..255))	current	An octet string used in the generalized Forward Error Correction (FEC) element for identifying attachment forwarder and groups. A NULL identifier is of zero length.
PwCfgIndexOrzero	Unsigned32 (0..4294967295)	current	Index in any of the relevant configuration tables for supplement information regarding configuration of the specific technology. Value zero implies no additional configuration information is applicable.
PwCwStatusTC	INTEGER { waitingForNextMsg(1), sentWrongBitErrorCode(2), rxWithdrawWithWrongBitErrorCode(3), illegalReceivedBit(4), cwPresent(5), cwNotPresent(6), notYetKnown(7) }	current	Indicates the status of the control word (CW) negotiation based on the local configuration and the indications received from the peer node. waitingForNextMsg(1) indicates that the node is waiting for another label mappi…
PwFragSize	Unsigned32	current	If set to a value other than zero, it indicates the desired fragmentation length in bytes. If set to zero, fragmentation is not desired for PSN bound packets.
PwFragStatus	BITS { noFrag(0), cfgFragGreaterThanPsnMtu(1), cfgFragButRemoteIncapable(2), remoteFragCapable(3), fragEnabled(4) }	current	Indicates the status of the fragmentation/reassembly process based on local configuration and peer capability. noFrag(0) bit indicates that local configuration is for no fragmentation. cfgFragGreaterThanPsnMtu(1) bit in…
PwGenIdType	Unsigned32( 0..254 )	current	Represents the Attachment Group Identifier (AGI) Type and Attachment Individual Identifier (AII) Type in generalized FEC signaling and configuration.
PwGroupID	Unsigned32	current	An administrative identification for grouping a set of service-specific pseudowire services.
PwIDType	Unsigned32	current	Pseudowire Identifier. Used to identify the PW (together with some other fields) in the signaling session.
PwIndexOrZeroType	Unsigned32 (0..4294967295)	current	This TEXTUAL-CONVENTION is an extension of the PwIndexType convention. The latter defines a greater- than-zero value used to identify a pseudowire in the managed system. This extension permits the additional value of ze…
PwIndexType	Unsigned32 (1..4294967295)	current	Pseudowire Index. A unique value, greater than zero, for each locally defined PW. Used for indexing several MIB tables associated with the particular PW. It is recommended that values are assigned contiguously starting …
PwOperStatusTC	INTEGER { up(1), down(2), testing(3), dormant(4), notPresent(5), lowerLayerDown(6) }	current	Indicates the operational status of the PW. - up(1): Ready to pass packets. - down(2): PW signaling is not yet finished, or indications available at the service level indicate that the PW is not passing packets. - testi…
PwStatus	BITS { pwNotForwarding(0), servicePwRxFault(1), servicePwTxFault(2), psnPwRxFault(3), psnPwTxFault(4) }	current	Indicates the status of the PW and the interfaces affecting this PW. If none of the bits are set, it indicates no faults are reported.