A3COM-HUAWEI-L2VPN-PWE3-MIB

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Organization: Huawei 3Com Technologies Co., Ltd.

Last Updated: 2007-03-31

Category: Pseudowire, Vendor: H3C/HH3C

Description: Manages L2VPN pseudowire (PWE3) service instances, VC status, and encapsulation on H3C PE devices.

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What Is A3COM-HUAWEI-L2VPN-PWE3-MIB?

A3COM-HUAWEI-L2VPN-PWE3-MIB is an H3C/3Com private MIB for managing Pseudowire Emulation Edge-to-Edge (PWE3) services used to carry Layer 2 VPN traffic over an MPLS/IP core. It exposes a virtual-circuit table describing each pseudowire's type, peer address, MTU, and inbound/outbound MPLS labels, along with a notification-enable object and trap objects for VC state changes. The monitoring emphasis is on software/service status: operators watch pseudowire VC state and label bindings to confirm a PWE3 circuit is up end-to-end and correctly mapped to its underlying interface, catching mismatched MTUs or stale labels that would break the emulated L2 service. It sits on top of the device's MPLS label-switching and interface infrastructure, so it is typically correlated with MPLS-LSR-MIB/interface objects rather than used in isolation. It is deployed on H3C/3Com provider-edge (PE) routers offering L2VPN pseudowire services across an MPLS backbone. Engineers can download the A3COM-HUAWEI-L2VPN-PWE3-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM-HUAWEI-L2VPN-PWE3-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

H3C/3Com MPLS provider-edge routers

Monitoring Examples

An operator walks h3cPwVcTable/h3cPwVcEntry (keyed by h3cPwVcIndex) to check h3cPwVcID, h3cPwVcType, and h3cPwVcPeerAddr against provisioning records, and compares h3cPwVcInboundLabel/h3cPwVcOutboundLabel to the expected MPLS label allocation for that circuit. A mismatch between h3cPwVcMtu and the h3cPwVcIfIndex-mapped physical interface's MTU would explain fragmented or dropped frames on that pseudowire. Enabling h3cPwVcTrapOpen lets the operator receive notifications when a VC transitions state rather than relying purely on polling.

What Can Be Monitored

pseudowire VC operational state
VC type and encapsulation
peer PE address
MTU consistency
inbound/outbound MPLS labels
VC-to-interface mapping

Imported Objects

From A3COM-HUAWEI-OID-MIB

h3cCommon

OBJECT-IDENTITY

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
h3cL2VpnPwe3	1.3.6.1.4.1.43.45.1.10.2.78			This MIB contains objects to manage PWE3.
h3cL2VpnPwe3ScalarGroup	1.3.6.1.4.1.43.45.1.10.2.78.1
T/F h3cPwVcTrapOpen	1.3.6.1.4.1.43.45.1.10.2.78.1.1	TruthValue	read-write	Whether pwe3 trap is globally enabled. false: disable; true: enable.
h3cL2VpnPwe3Table	1.3.6.1.4.1.43.45.1.10.2.78.2
h3cPwVcTable	1.3.6.1.4.1.43.45.1.10.2.78.2.1		not-accessible	This table is the VC configuration table. Users can create or delete a VC by it.
h3cPwVcEntry	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1		not-accessible	Provides the information of a VC entry.
I32 h3cPwVcIndex	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.1	Integer32	not-accessible	Index for the conceptual row identifying a PW within this PW Emulation table.
U32 h3cPwVcID	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.2	Unsigned32	read-create	Used in the outgoing PW ID field within the 'Virtual Circuit FEC Element'.
H3C h3cPwVcType	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.3	H3cL2VpnVcEncapsType	read-create	Indication of the L2Vpn's VC encapsulation type.
IP h3cPwVcPeerAddr	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.4	IpAddress	read-create	This object contain the value of the peer ip address of the Martini VLL PW.
U32 h3cPwVcMtu	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.5	Unsigned32	read-create	If not equal zero, the optional Mtu object in the signaling protocol will be sent with this value, representing the locally supported MTU size over the interface (or the virtual interface) associated with the PW. The default value is 1500.
INT hwPwVcCfgType	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.6	INTEGER	read-create	Indicates the type of the pw: 1: primary; 2: backup; 3: multiPort.
U32 h3cPwVcInboundLabel	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.7	Unsigned32	read-only	For Martini VLL, the value will be created by system automatically.
U32 h3cPwVcOutboundLabel	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.8	Unsigned32	read-only	For Martini VLL, the value will be created by the peer automatically.
U32 h3cPwVcIfIndex	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.9	Unsigned32	read-create	Index of the interface (or the virtual interface) associated with the PW.
INT h3cPwVcAcStatus	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.10	INTEGER	read-only	Local AC(Attachment Circuit) status: 1: down; 2: up.
INT h3cPwVcStatus	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.11	INTEGER	read-only	Indicates the status of the PW in the local node. 1: down; 2: up.
ROW h3cPwVcRowStatus	1.3.6.1.4.1.43.45.1.10.2.78.2.1.1.12	RowStatus	read-create	This object is responsible for managing the creation, deletion and modification of rows, which support active status and CreatAndGo, destroy operation. To create a new row, h3cPwVcID, h3cPwVcType, h3cPwVcPeerAddr h3cPwVcMtu, hwPwVcCfgType and h3cPwVcIfIndex must be specified.
h3cL2VpnPwe3Notifications	1.3.6.1.4.1.43.45.1.10.2.78.3
NTF h3cPwVcSwitchWtoP	1.3.6.1.4.1.43.45.1.10.2.78.3.1			This notification is generated when switch from working pw to protect pw happens. The first group of h3cPwVcID/h3cPwVcTypeh3cPwVcPeerAddr is parameter of the work PW , and the second group of h3cPwVcID/h3cPwVcTypeh3cPwVcPeerAddr is parameter of the protect PW.
NTF h3cPwVcSwitchPtoW	1.3.6.1.4.1.43.45.1.10.2.78.3.2			This notification is generated when switch from protect pw to working pw happens. The first group of h3cPwVcID/h3cPwVcTypeh3cPwVcPeerAddr is parameter of the protect PW , and the second group of h3cPwVcID/h3cPwVcTypeh3cPwVcPeerAddr is parameter of the work PW.
NTF h3cPwVcDown	1.3.6.1.4.1.43.45.1.10.2.78.3.3			This notification indicates the VC's state changes to down.
NTF h3cPwVcUp	1.3.6.1.4.1.43.45.1.10.2.78.3.4			This notification indicates the VC's state changes to up.
NTF h3cPwVcDeleted	1.3.6.1.4.1.43.45.1.10.2.78.3.5			This notification indicates the VC is deleted.

RFC description

Manages L2VPN PWE3 (Pseudo Wire Emulation Edge-to-Edge) tunnels on Huawei/3Com devices.

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Download A3COM-HUAWEI-L2VPN-PWE3-MIB

What Is A3COM-HUAWEI-L2VPN-PWE3-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description