Fore-frf8-MIB

All MIBs › Fore-frf8-MIB

Organization: FORE

Last Updated: 1997-05-01

Category: ATM, Frame Relay, Vendor: Fore Systems (ATM)

Description: Fore Systems FRF.8 (Frame Relay/ATM Service Interworking) MIB providing management objects for Frame Relay to ATM service interworking.

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What Is Fore-frf8-MIB?

This MIB module, published by FORE Systems, implements management objects for FRF.8 Frame Relay to ATM Service Interworking, a legacy WAN technology bridging Frame Relay and ATM networks. It exposes configuration and status data for interworking connections, including DLCI-to-VPI/VCI mappings, connection profiles, and per-connection statistics. Because it centers on connection-level state (rows can be created/removed via row status) rather than hardware sensors, it is used primarily to monitor the operational status and configuration integrity of FR/ATM interworking circuits rather than physical device health. It commonly depends on standard Frame Relay and ATM MIBs for the underlying interface indices it references. It is typically deployed on FORE Systems (and compatible) ATM edge switches or WAN routers interconnecting legacy Frame Relay networks with ATM backbones. Engineers can download the Fore-frf8-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Fore-frf8-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

FORE Systems ATM switches/edge devices
Frame Relay-to-ATM interworking routers

Monitoring Examples

An administrator would poll frf8ConnTable/frf8ConnEntry to enumerate active interworking connections, cross-referencing frf8ConnFrServiceIfIndex and frf8ConnDlci against frf8ConnFabServiceIfIndex, frf8ConnFabVpi, and frf8ConnFabVci to confirm a DLCI is correctly mapped to its ATM VPI/VCI pair. Watching frf8ConnRowStatus reveals whether a connection is active, notInService, or failed to come up after provisioning. Reviewing frf8ConnAtmAddrType and frf8ConnAtmAddress alongside frf8ConnProfileFrf8Index helps verify the correct interworking profile is applied to a circuit exhibiting packet loss.

What Can Be Monitored

FR/ATM connection status
DLCI to VPI/VCI mapping
interworking profile assignment
ATM address configuration
connection row status
per-connection statistics

Imported Objects

From Fore-Common-MIB

AtmAddress
atmSwitch	OBJECT-IDENTITY
frameInternetworking	OBJECT-IDENTITY

From IF-MIB

InterfaceIndex

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
TimeTicks

From SNMPv2-TC

RowStatus

How to Use in IPNetwork Monitor

Example using frf8ConnAtmToFrPDUDiscards OID:

Select a FORE Systems ATM switch and router 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 frf8ConnAtmToFrPDUDiscards 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. The number of PDU's coming from the ATM network to the FR network that are discarded by the interworking function. 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 Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
foreFrf8Module	1.3.6.1.4.1.326.1.16.2			This MIB module defines FR/ATM interworking tables. It gives means to create/remove a FR/ATM interworking connection and provides several statistics at connection level.
frf8ConnTable	1.3.6.1.4.1.326.1.16.2.1		not-accessible	Table of cross connections between the frame relay and ATM Fabric connections
frf8ConnEntry	1.3.6.1.4.1.326.1.16.2.1.1		not-accessible	Entry in the frame relay/atm netmod crossconnect table
NUM frf8ConnFrServiceIfIndex	1.3.6.1.4.1.326.1.16.2.1.1.1	InterfaceIndex	read-only	Interface index of the Frame Relay service this connection exists on
I32 frf8ConnDlci	1.3.6.1.4.1.326.1.16.2.1.1.2	Integer32	read-only	DLCI of this connection on the frame relay service
NUM frf8ConnFabServiceIfIndex	1.3.6.1.4.1.326.1.16.2.1.1.3	InterfaceIndex	read-only	This is the IfIndex associated with the fabric pseudo atm service this connection is mapped to by the agent when this Frame Relay connection is created. This IfIndex can be converted to a BNP notation value through the ifIndexMapTable of the fore-switch MIB. That BNP value can be used to establish a connection accross the switching fabric by means of the FORE-switch MIB
I32 frf8ConnFabVpi	1.3.6.1.4.1.326.1.16.2.1.1.4	Integer32	read-only	This is the fabric VPI(equivalent to ivpi) of the ATM connection this frame relay/ATM connection is mapped to by the agent when this row is created. This VPI will be used to establish a connection accross the switching fabric by means of the FORE-switch MIB
I32 frf8ConnFabVci	1.3.6.1.4.1.326.1.16.2.1.1.5	Integer32	read-only	This is the fabric VCI (equivalent to ivci)of the ATM connection this frame relay connection is mapped to by the agent when this row is created. This VCI will be used to establish a connection accross the switching fabric by means of the FORE-switch MIB
ROW frf8ConnRowStatus	1.3.6.1.4.1.326.1.16.2.1.1.6	RowStatus	read-create	This object is used for dynamic creation of entries in this table and all frame relay connection level tables. This object is also used to delete existing connection rows.
I32 frf8ConnProfileFrf8Index	1.3.6.1.4.1.326.1.16.2.1.1.7	Integer32	read-create	the profileFrf8Index, in the fore-profile.mib
I32 frf8ConnProfileEpdPpdIndex	1.3.6.1.4.1.326.1.16.2.1.1.8	Integer32	read-create	The index of the EpdPpd Controller profile which contains: 1 ) Enable/disable the EPD for CLP=0 cells for a specific connection; 2 ) Enable/disable the EPD for CLP=1 cells for a specific connection; 3 ) Enable/disable the PPD for CLP=1 cells for a specific connection.
INT frf8ConnAtmAddrType	1.3.6.1.4.1.326.1.16.2.1.1.9	INTEGER	read-create	Defines the address format of the ATM Service User end point
ADR frf8ConnAtmAddress	1.3.6.1.4.1.326.1.16.2.1.1.10	AtmAddress	read-create	The destination ATM address to which this Virtual Circuit is connected.
INT frf8ConnAtmSubAddrType	1.3.6.1.4.1.326.1.16.2.1.1.11	INTEGER	read-create	Defines the sub-address format of the ATM Service User end point
ADR frf8ConnAtmSubAddress	1.3.6.1.4.1.326.1.16.2.1.1.12	AtmAddress	read-create	The destination ATM subaddress to which this Virtual Circuit is connected.
INT frf8ConnFrAddrType	1.3.6.1.4.1.326.1.16.2.1.1.13	INTEGER	read-create	Defines the frame relay address format of the Frame Relay Service User end point
ADR frf8ConnFrAddress	1.3.6.1.4.1.326.1.16.2.1.1.14	AtmAddress	read-create	The address to which the Frame Relay DLCI is connected.
INT frf8ConnAdminStatus	1.3.6.1.4.1.326.1.16.2.1.1.15	INTEGER	read-create	Indicates whether the particular virtual circuit is operational.
INT frf8ConnOperStatus	1.3.6.1.4.1.326.1.16.2.1.1.16	INTEGER	read-only	The current operational status of the interworking connection
TIK frf8ConnCreationTime	1.3.6.1.4.1.326.1.16.2.1.1.17	TimeTicks	read-only	The value of sysUpTime when the virtual circuit was created
TIK frf8ConnTimeChange	1.3.6.1.4.1.326.1.16.2.1.1.18	TimeTicks	read-only	The value of sysUpTime (MIB II) when last there was a change in the virtual circuit state
INT frf8ConnPVCAlarmReason	1.3.6.1.4.1.326.1.16.2.1.1.19	INTEGER	read-only	Defines the reason why the PVC entered/exited the alarmed condition.Defines if the SAC (service affect Condition) is caused/cleared by the Frame Relay network(frAlarmed/frClear), or by the ATM network (aisAlarmed/aisClear,rdiAlarmed/aisClear). The nodefect means no current SAC in either network. This object will be part of the frf8PVCAlarmTRAP.
C32 frf8ConnAtmToFrPDUDiscardsEx	1.3.6.1.4.1.326.1.16.2.1.1.20	Counter32	read-only	The number of PDU's coming from the ATM network to the FR network that are discarded by the interworking function
C32 frf8ConnFrToAtmPDUDiscards	1.3.6.1.4.1.326.1.16.2.1.1.21	Counter32	read-only	The number of PDU's coming from the FR network to the ATM network that are discarded by the interworking function
C32 frf8ConnAtmToFrUnkProts	1.3.6.1.4.1.326.1.16.2.1.1.22	Counter32	read-only	The number of PDU's received with an unknown protocol type by the interworking function from the ATM network
C32 frf8ConnFrToAtmUnkProts	1.3.6.1.4.1.326.1.16.2.1.1.23	Counter32	read-only	The number of PDU's received with an unknown protocol type by the interworking function from the Frame Relay network
C32 frf8ConnAtmToFrArpNakDiscards	1.3.6.1.4.1.326.1.16.2.1.1.24	Counter32	read-only	The number of AAL-5 ARP NAK PDU's that are discarded by the interworking function on this ATM VCC.If the iwf, interworking function receives an ATM ARP with opcode 10 (NAK), the ARP packet is discarde, since FR ARP does not support that opcode.
frf8ProtTable	1.3.6.1.4.1.326.1.16.2.2		not-accessible	The Objects associated with the protocols registered on a specific Virtual Circuit.
frf8ProtEntry	1.3.6.1.4.1.326.1.16.2.2.1		not-accessible	The statistics entry for the Protocol Table.
NUM frf8ProtServiceIfIndex	1.3.6.1.4.1.326.1.16.2.2.1.1	InterfaceIndex	read-only	Interface index of the Frame Relay service this connection exists on.
I32 frf8ProtDlci	1.3.6.1.4.1.326.1.16.2.2.1.2	Integer32	read-only	DLCI of this connection on the frame relay service.
INT frf8ProtProtocol	1.3.6.1.4.1.326.1.16.2.2.1.3	INTEGER	read-only	The protocol(s) registered over this Virtual Circuit.
C32 frf8ProtAtmToFrPdus	1.3.6.1.4.1.326.1.16.2.2.1.4	Counter32	read-only	The number of AAL-5 PDU's received by FRF.8 of this protocol type from ATM to FR network direction.
C32 frf8ProtAtmToFrOctets	1.3.6.1.4.1.326.1.16.2.2.1.5	Counter32	read-only	The number of AAL-5 octets received by FRF.8 of this protocol type from ATM to FR network direction.
C32 frf8ProtFrToAtmPdus	1.3.6.1.4.1.326.1.16.2.2.1.6	Counter32	read-only	The number of AAL-5 PDU's transmitted by FRF.8 of this protocol type from FR to ATM network direction.
C32 frf8ProtFrToAtmOctets	1.3.6.1.4.1.326.1.16.2.2.1.7	Counter32	read-only	The number of AAL-5 octets transmitted by FRF.8 of this protocol type from FR to ATM network direction.
frf8OamF5Table	1.3.6.1.4.1.326.1.16.2.3		not-accessible	The OAM statistics table on a VCC basis
frf8OamF5Entry	1.3.6.1.4.1.326.1.16.2.3.1		not-accessible	An Entry in the OAM F5 statistics table on a VCC basis
NUM frf8OamF5ServiceIfIndex	1.3.6.1.4.1.326.1.16.2.3.1.1	InterfaceIndex	read-only	Interface index of the Frame Relay service this connection exists on.
I32 frf8OamF5VcDlci	1.3.6.1.4.1.326.1.16.2.3.1.2	Integer32	read-only	DLCI of this connection on the frame relay service.
C32 frf8OamF5AISRxCounter	1.3.6.1.4.1.326.1.16.2.3.1.3	Counter32	read-only	Number of VC-AIS cells received since the PVC was brought into service.
C32 frf8OamF5AISTxCounter	1.3.6.1.4.1.326.1.16.2.3.1.4	Counter32	read-only	Number of VC-AIS cells transmited since the PVC was brought into service.
C32 frf8OamF5RDIRxCounter	1.3.6.1.4.1.326.1.16.2.3.1.5	Counter32	read-only	Number of VC-RDI cells received since the PVC was brought into service.
C32 frf8OamF5RDITxCounter	1.3.6.1.4.1.326.1.16.2.3.1.6	Counter32	read-only	Number of VC-RDI cells transmited since the PVC was brought into service.
NTF frf8PVCStatus	1.3.6.1.4.1.326.2.2.0.2000			This trap indicates when an interworking PVC has experienced an alarmed condition, either on the ATM network side or Frame Relay side. Also it is generated when the PVC alarmed condition is cleared. It carries the opera tional status of the PVC by the frf8ConnOperStatus as well as the reason why exiting,entering or changing the alarmed state frf8ConnPVCAlarmReason. If the interworking PVC changes its status by a AdminStatus command (active/inactive/testing), causing the frf8ConnOperStatus to change (up/down), this trap will be generated with frf8ConnPVCAlarmReason set to 'nodefect'. This TRAP will give the support to manage defects that might occur in either Frame Relay network or ATM network, even if the PVC Operational Status is already down.

RFC description

Fore Systems vendor-private MIB implementing Frame Relay Forum FRF.8 (Frame Relay over ATM) management capabilities.

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Download Fore-frf8-MIB