USR-ATM-1483-PVC-MIB

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Organization: CommWorks Corporation, a 3Com Company

Last Updated: 2002-04-06

Category: CommWorks/3Com Access Equipment

Description: Manages RFC 1483 ATM PVC encapsulation parameters on CommWorks/3Com broadband access equipment.

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What Is USR-ATM-1483-PVC-MIB?

USR-ATM-1483-PVC-MIB is a proprietary CommWorks/3Com (formerly US Robotics) MIB governing RFC 1483 ATM PVC (permanent virtual circuit) encapsulation on their broadband access equipment, such as remote access/DSL concentrators. It would expose configuration and status objects for individual ATM PVCs, including encapsulation type, VPI/VCI addressing, and per-PVC traffic or error counters, though no sample objects were available from the source to confirm exact names. Its monitoring role centers on the operational status of ATM virtual circuits carrying bridged or routed traffic (RFC 1483 encapsulation) — whether a PVC is up, correctly encapsulating frames, and free of cell/frame errors — rather than general device hardware health. It builds on standard ATM concepts from the IETF ATM-MIB/AAL5-MIB family while defining CommWorks-specific extensions. It would typically be deployed on legacy 3Com/CommWorks ATM-based broadband access concentrators providing RFC 1483 bridged/routed Internet access. Engineers can download the USR-ATM-1483-PVC-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in USR-ATM-1483-PVC-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

CommWorks/3Com (US Robotics) ATM broadband access concentrator

Monitoring Examples

No sample objects were provided for this MIB, so a specific object-level monitoring scenario cannot be described honestly; typically an admin would expect to poll per-PVC status, VPI/VCI values, and encapsulation-type objects to confirm a given ATM PVC is operational and correctly bridging/routing traffic, but the concrete object names cannot be confirmed here.

What Can Be Monitored

ATM PVC operational status
VPI/VCI addressing
RFC 1483 encapsulation type
PVC error/traffic counters

Imported Objects

From ATM-TC-MIB

AtmVcIdentifier
AtmVpIdentifier

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus

From USR-DEFINITIONS-MIB

UsrConfigStatus
UsrDisplayString
common	OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
usrAtm1483Pvc	1.3.6.1.4.1.429.4.47			The commWorks enterprise defined MIB objects for the Netserver ATM.
STR usrAtm1483PvcConfigFileName	1.3.6.1.4.1.429.4.47.1	UsrDisplayString	read-only	The name of a ConfigFile to read/write permanent database records. If the value of this object is an empty string, then ATM 1483 uses the default name `@file://Atm1483.cfg'.
USR usrAtm1483PvcCFMStatusFlag	1.3.6.1.4.1.429.4.47.2	UsrConfigStatus	read-write	Setting the value of this object to `save' causes the values of the ATM ARP MIB objects to be written out to the current config file, which is stored in the usrIpoaArpConfigFileName object. While the new ConfigFile is being written, ATM ARP will set the value of this flag to `saving''. Any attempts to set the value while it is not `normal' (i.e. the file is currently being written to the ConfigFile) while result in a badValue error being returned. Setting the value to `normal' will result in no action.
usrAtm1483PvcTable	1.3.6.1.4.1.429.4.47.3		not-accessible	This usrAtm1483PvcTable keeps a set of PVCs and creates a corresponding entry in the appropriate protocol ARP cache or equivalent.
usrAtm1483PvcEntry	1.3.6.1.4.1.429.4.47.3.1		not-accessible	A PVC that this host has opened with another host for data transfer of datagrams using the encapsulation specified in RFC1483. Additional information can be determined about the VC from RFC1695, the AToM MIB. When an entry is added to this table, if the corresponding network protocol is IP, an entry is added to the ipNetToMediaTable (ARP Cache) to allow the translation of an IP address to the RFC1483 PVC created in this table, and the PVC created in the RFC1695 AToM MIB.
STR usrAtm1483PvcName	1.3.6.1.4.1.429.4.47.3.1.1	UsrDisplayString	not-accessible	A string containing the name of the RFC1483 PVC.
OID usrAtm1483PvcVpi	1.3.6.1.4.1.429.4.47.3.1.2	AtmVpIdentifier	read-create	The VPI value for the RFC1483 PVC.
OID usrAtm1483PvcVci	1.3.6.1.4.1.429.4.47.3.1.3	AtmVcIdentifier	read-create	The VCI value for the RFC1483 PVC.
I32 usrAtm1483PvcPort	1.3.6.1.4.1.429.4.47.3.1.4	Integer32	read-create	The port number for the RFC1483 PVC.
I32 usrAtm1483PvcPcr	1.3.6.1.4.1.429.4.47.3.1.5	Integer32	read-create	The peak cell rate value to use when creating this PVC.
STR usrAtm1483PvcNetworkName	1.3.6.1.4.1.429.4.47.3.1.6	UsrDisplayString	read-create	A string containing the name of the network of this RFC1483 PVC.
IP usrAtm1483PvcNetworkAddr	1.3.6.1.4.1.429.4.47.3.1.7	IpAddress	read-create	The network layer address of the end station that this RFC1483 PVC connects to. This value is placed in the ARP cache as a static entry so that the IP forwarder may map traffic destined for this network address to this RFC1483 PVC.
INT usrAtm1483PvcProtocol	1.3.6.1.4.1.429.4.47.3.1.8	INTEGER	read-only	The Level 3 protocol running over this RFC1483 PVC.
ROW usrAtm1483PvcRowStatus	1.3.6.1.4.1.429.4.47.3.1.9	RowStatus	read-create	This object allows rows to be created and deleted in the usrAtm1483PvcTable. For a PVC on an IP network, an entry in this table will have a corresponding ipNetToMediaEntry to allow the translation of an IP address to this PVC. Setting this object to destroy(6) removes the corresponding ipNetToMediaTable entry, if any.
I32 usrAtm1483PvcDefaultPcr	1.3.6.1.4.1.429.4.47.4	Integer32	read-only	An integer containing the default peak cell rate to use when establishing VCs. This value is one tenth the speed of the physical interface expressed as a cell rate.

RFC description

ATM PVC management for 3Com CommWorks Netserver with RFC 1483 encapsulation support.

Start monitoring CommWorks/3Com (US Robotics) ATM broadband access concentrator (RFC 1483 PVC encapsulation/status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download USR-ATM-1483-PVC-MIB

What Is USR-ATM-1483-PVC-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description