HH3C-EVC-MIB

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Organization: Hangzhou H3C Tech. Co., Ltd.

Last Updated: 2009-08-08

Category: Technology: Switching/L2, Technology: VLAN, Vendor: H3C/HH3C

Description: Manages Ethernet Virtual Circuit (EVC) service instances and encapsulation policies on H3C provider switches.

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What Is HH3C-EVC-MIB?

HH3C-EVC-MIB manages Ethernet Virtual Connection (EVC) service instances on H3C provider/carrier-Ethernet switches, covering how customer VLANs are mapped and encapsulated into service instances at the network edge. It exposes per-port maximum service-instance capacity, an encapsulation capabilities scalar, and a service-instance table describing each instance's ID, encapsulation type, S-VLAN ID range, and row status. Its monitoring value lies in configuration/service-provisioning correctness: an administrator can confirm a given EVC service instance is active (via row status) and correctly bound to its intended S-VLAN range and encapsulation, which is a software/configuration-status concern for carrier-Ethernet service delivery rather than physical hardware. It is an H3C-specific implementation of the general Metro Ethernet Forum EVC concept and does not appear to depend on a separate external standard MIB for its core objects. It is deployed on H3C carrier-Ethernet or provider-edge switches offering Ethernet Virtual Private Line/LAN services to business customers. Engineers can download the HH3C-EVC-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HH3C-EVC-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 carrier/provider-Ethernet switches

Monitoring Examples

An administrator would poll hh3cEvcSrvInstTable, keyed by hh3cEvcSrvInstId, to check hh3cEvcSrvInstEncap and the hh3cEvcSrvInstSvlanIdListLow/High range against the intended customer service definition, and hh3cEvcSrvInstRowStatus to confirm the instance is active. Comparing hh3cEvcPortMaxSrvInstNum against the number of provisioned instances on a port would show how much service-instance capacity remains on that port. A service instance whose hh3cEvcSrvInstRowStatus is not active, or whose S-VLAN range doesn't match provisioning records, would indicate a misconfigured or failed EVC turn-up.

What Can Be Monitored

service instance encapsulation type
S-VLAN ID range per service instance
service instance row/active status
maximum service instances per port

Imported Objects

From HH3C-OID-MIB

hh3cCommon

OBJECT-IDENTITY

From RFC1213-MIB

ifIndex

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus

OIDs

OID symbolic	OID numeric	Type	Access	Description
hh3cEvc	1.3.6.1.4.1.25506.2.106			Ethernet Virtual Connection MIB
hh3cEvcObjects	1.3.6.1.4.1.25506.2.106.1
hh3cEvcScalarGroup	1.3.6.1.4.1.25506.2.106.1.1
BIT hh3cEvcSrvInstEncapCapabilities	1.3.6.1.4.1.25506.2.106.1.1.1	Bits	read-only	This object displays the encapsulation capabilities of service instance with respect to certain fields. The following values may be supported: encapPortBased: Support for matching packets by port. encapUntagged: Support for matching untagged packets. encapTagged: Support for matching all tagged packets. encapSvlanId: Support for matching packets by a SVLAN ID, and the packets may be untagged if PVID of the port is the SVLAN ID when the encapSvlanIdOnlyTagged field is not set. encapSvlanIdList: Support for matching packets by SVLAN ID list, and the packets may be untagged if PVID of the port is in SVLAN ID list when the encapSvlanIdOnlyTagged field is not set. encapSvlanIdOnlyTagged: encapSvlanId or encapSvlanId field indicates to support for matching only tagged packets when this field is set.
I32 hh3cEvcPortMaxSrvInstNum	1.3.6.1.4.1.25506.2.106.1.1.2	Integer32	read-only	The max service instance number of a port.
hh3cEvcSrvInstTable	1.3.6.1.4.1.25506.2.106.1.2		not-accessible	A table for configuring service instance parameter of the port.
hh3cEvcSrvInstEntry	1.3.6.1.4.1.25506.2.106.1.2.1		not-accessible	An entry for configuring service instance parameter of the port.
I32 hh3cEvcSrvInstId	1.3.6.1.4.1.25506.2.106.1.2.1.1	Integer32	not-accessible	Service instance ID. Its value ranges from 1 to the value of hh3cEvcPortMaxSrvInstNum.
INT hh3cEvcSrvInstEncap	1.3.6.1.4.1.25506.2.106.1.2.1.2	INTEGER	read-create	Encapsulation mode of a service instance. none : Invalid value. portBased : Match packets by port. It is supported when encapPortBased field of hh3cEvcCapabilities is set. untagged : Match untagged packets. It is supported when encapUntagged field of hh3cEvcCapabilities is set. tagged : Match all tagged packets. It is supported when encapTagged field of hh3cEvcCapabilities is set. svlanIdList: Match packets by SVLAN ID list and untagged packets if PVID of the port is in SVLAN ID list, the SVLAN ID list is denoted by hh3cEvcSrvInstSvlanIdListLow and hh3cEvcSrvInstSvlanIdListLow. It is supported when encapSvlanId or encapSvlanIdList field of hh3cEvcCapabilities is set. Only a VLAN ID is supported when encapSvlanId field of hh3cEvcCapabilities is set. svlanIdListOnlyTagged: Match only tagged packets by SVLAN ID list, the SVLAN ID is denoted by hh3cEvcSrvInstSvlanIdListLow and hh3cEvcSrvInstSvlanIdListLow. It is supported when encapSvlanId (or encapSvlanIdList) and encapSvlanIdOnlyTagged fields of hh3cEvcCapabilities are set. Only a VLAN ID is supported when encapSvlanId and encapSvlanIdOnlyTagged field of hh3cEvcCapabilities are set.
OCT hh3cEvcSrvInstSvlanIdListLow	1.3.6.1.4.1.25506.2.106.1.2.1.3	OCTET STRING	read-create	This object contains the first 2048 bits of the 4096 bit vector indicating which SVLAN IDs are assigned to this service instance. The lowest order bit of the first octet corresponds to SVLAN 1, while the highest order bit of the last octet corresponds to SVLAN 2048. A bit that is on (equal to 1) indicates that the corresponding SVLAN ID is assigned to this service instance.
OCT hh3cEvcSrvInstSvlanIdListHigh	1.3.6.1.4.1.25506.2.106.1.2.1.4	OCTET STRING	read-create	This object contains the second 2048 bits of the 4096 bit vector indicating which SVLAN IDs are assigned to this service instance. The lowest order bit of the first octet corresponds to SVLAN 2049, while the third highest order bit of the last octet corresponds to SVLAN 4094. A bit that is on (equal to 1) indicates that the corresponding SVLAN ID is assigned to this service instance.
ROW hh3cEvcSrvInstRowStatus	1.3.6.1.4.1.25506.2.106.1.2.1.5	RowStatus	read-create	Operation status of this table entry.

RFC description

MIB module for managing Ethernet Virtual Connections (EVC), including service instance encapsulation and configuration.

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Download HH3C-EVC-MIB

What Is HH3C-EVC-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description