SCA-FREXT-MIB

All MIBs › SCA-FREXT-MIB

Category: ATM and Frame Relay, Securicor WAN Router Management, WAN and Routing

Description: Manages Securicor WAN router Frame Relay extension parameters and PVC statistics.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock 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.

What Is SCA-FREXT-MIB?

SCA-FREXT-MIB is a vendor-specific MIB from Securicor (SCA) for extended Frame Relay circuit management on their WAN routers, layering additional PVC-level configuration and statistics on top of the standard Frame Relay MIB. It exposes per-DLCI encapsulation configuration (enabled/negotiated encapsulation state) and reset/discard counters for each Frame Relay circuit, keyed by interface index and DLCI. Its monitoring purpose is centered on circuit-level software/protocol status: tracking whether Frame Relay encapsulation negotiation succeeded, and counting LMI-style reset requests/acknowledgements and discarded frames to detect an unstable or misconfigured PVC. It extends the standard Frame Relay DTE/DCE MIB conventions (akin to RFC 1315/2115) with Securicor-specific encapsulation extensions. It is deployed on Securicor WAN routers terminating Frame Relay circuits in enterprise wide-area network links. Engineers can download the SCA-FREXT-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in SCA-FREXT-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

Securicor (SCA) WAN routers with Frame Relay interfaces

Monitoring Examples

An operator would poll frCirExtEncTable/frCirExtEncEntry keyed by frCirExtEncIfIndex and frCirExtEncDlci to check frCirExtEncEnabled and frCirExtEncNegotiated encapsulation state for a given PVC. A rising count of frCirExtEncResetRequestsRx/Tx or frCirExtEncRxDiscarded on a specific DLCI would indicate the Frame Relay circuit is flapping or has a mismatched encapsulation configuration between the two ends.

What Can Be Monitored

Frame Relay PVC encapsulation state
reset request/acknowledgement counts
discarded frame counts
per-DLCI circuit configuration

Imported Objects

From FRAME-RELAY-DTE-MIB

DLCI

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter

From SCANET-MIB

scanet

OBJECT-IDENTITY

OIDs

OID symbolic	OID numeric	Type	Access	Description
frEx	1.3.6.1.4.1.208.46
frCircuitExt	1.3.6.1.4.1.208.46.1
frCirExtEncTable	1.3.6.1.4.1.208.46.1.1		not-accessible	Encryption information table.
frCirExtEncEntry	1.3.6.1.4.1.208.46.1.1.1		not-accessible
NUM frCirExtEncIfIndex	1.3.6.1.4.1.208.46.1.1.1.1	InterfaceIndex	read-only	The ifIndex Value of the ifEntry this virtual circuit is layered onto.
DLC frCirExtEncDlci	1.3.6.1.4.1.208.46.1.1.1.2	DLCI	read-only	The Data Link Connection Identifier for this virtual circuit.
NUM frCirExtEncLogicalIfIndex	1.3.6.1.4.1.208.46.1.1.1.3	InterfaceIndex	read-only	Normally the same value as frDlcmiIfIndex, but different when an implementation associates a virtual ifEntry with a DLC or set of DLCs in order to associate higher layer objects such as the ipAddrEntry with a subset of the virtual circuits on a Frame Relay interface. The type of such ifEntries is defined by the higher layer object; for example, if PPP/Frame Relay is implemented, the ifType of this ifEntry would be PPP. If it is not so defined, as would be the case with an ipAddrEntry, it should be of type Other.
INT frCirExtEncEnabled	1.3.6.1.4.1.208.46.1.1.1.4	INTEGER	read-only	Encryption enabled on link.
INT frCirExtEncNegotiated	1.3.6.1.4.1.208.46.1.1.1.5	INTEGER	read-only	Encryption negotiated on link.
CTR frCirExtEncResetRequestsRx	1.3.6.1.4.1.208.46.1.1.1.6	Counter	read-only	Number of encryption history reset requests received.
CTR frCirExtEncResetRequestsTx	1.3.6.1.4.1.208.46.1.1.1.7	Counter	read-only	Number of encryption history reset requests sent.
CTR frCirExtEncResetAcksRx	1.3.6.1.4.1.208.46.1.1.1.8	Counter	read-only	Number of encryption history reset acknowledgments received.
CTR frCirExtEncResetAcksTx	1.3.6.1.4.1.208.46.1.1.1.9	Counter	read-only	Number of encryption history reset acknowledgments sent.
CTR frCirExtEncRxDiscarded	1.3.6.1.4.1.208.46.1.1.1.10	Counter	read-only	Number of packets discarded due to lack of synchronisation, buffer lacks or packet errors.
CTR frCirExtEncTxDiscarded	1.3.6.1.4.1.208.46.1.1.1.11	Counter	read-only	Number of packets discarded due to buffer lacks or transmit queue overflows
INT frCirExtEncReceiverState	1.3.6.1.4.1.208.46.1.1.1.12	INTEGER	read-only	State of receiver. Error state means waiting for reset acknowledgment
frCirExtCompTable	1.3.6.1.4.1.208.46.1.2		not-accessible	Compression information table.
frCirExtCompEntry	1.3.6.1.4.1.208.46.1.2.1		not-accessible
NUM frCirExtCompIfIndex	1.3.6.1.4.1.208.46.1.2.1.1	InterfaceIndex	read-only	The ifIndex Value of the ifEntry this virtual circuit is layered onto.
DLC frCirExtCompDlci	1.3.6.1.4.1.208.46.1.2.1.2	DLCI	read-only	The Data Link Connection Identifier for this virtual circuit.
NUM frCirExtCompLogicalIfIndex	1.3.6.1.4.1.208.46.1.2.1.3	InterfaceIndex	read-only	Normally the same value as frDlcmiIfIndex, but different when an implementation associates a virtual ifEntry with a DLC or set of DLCs in order to associate higher layer objects such as the ipAddrEntry with a subset of the virtual circuits on a Frame Relay interface. The type of such ifEntries is defined by the higher layer object; for example, if PPP/Frame Relay is implemented, the ifType of this ifEntry would be PPP. If it is not so defined, as would be the case with an ipAddrEntry, it should be of type Other.
INT frCirExtCompEnabled	1.3.6.1.4.1.208.46.1.2.1.4	INTEGER	read-only	Encryption enabled on link.
INT frCirExtCompNegotiated	1.3.6.1.4.1.208.46.1.2.1.5	INTEGER	read-only	Encryption negotiated on link.
CTR frCirExtCompDecoderBytesIn	1.3.6.1.4.1.208.46.1.2.1.6	Counter	read-only	Total number of bytes received by the decoder.
CTR frCirExtCompDecoderDecompBytesOut	1.3.6.1.4.1.208.46.1.2.1.7	Counter	read-only	Decompressed bytes from the decoder.
CTR frCirExtCompDecoderUncompBytesOut	1.3.6.1.4.1.208.46.1.2.1.8	Counter	read-only	Uncompressed bytes received by the decoder.
CTR frCirExtCompDecoderCompPacketsIn	1.3.6.1.4.1.208.46.1.2.1.9	Counter	read-only	Compressed packets received by the decoder.
CTR frCirExtCompDecoderUncompPacketsIn	1.3.6.1.4.1.208.46.1.2.1.10	Counter	read-only	Uncompressed packets received by the decoder.
CTR frCirExtCompDecoderDecompQueueLength	1.3.6.1.4.1.208.46.1.2.1.11	Counter	read-only	Number of packets waiting to be decompressed.
CTR frCirExtCompDecoderCompressionRatio	1.3.6.1.4.1.208.46.1.2.1.12	Counter	read-only	Receive compression ratio (multiplied by 100).
CTR frCirExtCompDecoderResetRequestTx	1.3.6.1.4.1.208.46.1.2.1.13	Counter	read-only	The number of times the decoder requested re-initialization of the compression history.
CTR frCirExtCompDecoderResetAcksRx	1.3.6.1.4.1.208.46.1.2.1.14	Counter	read-only	The number of acknowledgments to reset requests received by the router.
CTR frCirExtCompDecoderRxDiscarded	1.3.6.1.4.1.208.46.1.2.1.15	Counter	read-only	Number of packets discarded by the decoder due to buffer lacks or synchronisation problems.
INT frCirExtCompDecoderState	1.3.6.1.4.1.208.46.1.2.1.16	INTEGER	read-only	State of decoder. Error state means waiting for reset acknowledgment
CTR frCirExtCompEncoderBytesIn	1.3.6.1.4.1.208.46.1.2.1.17	Counter	read-only	Total number of bytes received by the encoder.
CTR frCirExtCompEncoderCompBytesOut	1.3.6.1.4.1.208.46.1.2.1.18	Counter	read-only	Number of compressed bytes leaving the encoder.
CTR frCirExtCompEncoderUncompBytesOut	1.3.6.1.4.1.208.46.1.2.1.19	Counter	read-only	Number of uncompressed bytes leaving the encoder.
CTR frCirExtCompEncoderCompPacketsOut	1.3.6.1.4.1.208.46.1.2.1.20	Counter	read-only	Number of compressed packets leaving the encoder.
CTR frCirExtCompEncoderUncompPacketsOut	1.3.6.1.4.1.208.46.1.2.1.21	Counter	read-only	Number of uncompressed packets leaving the encoder.
CTR frCirExtCompEncoderCompQueueLength	1.3.6.1.4.1.208.46.1.2.1.22	Counter	read-only	Number of packets waiting to be compressed.
CTR frCirExtCompEncoderCompressionRation	1.3.6.1.4.1.208.46.1.2.1.23	Counter	read-only	Transmit compression ratio (multiplied by 100).
CTR frCirExtCompEncoderResetRequestRx	1.3.6.1.4.1.208.46.1.2.1.24	Counter	read-only	The number of times the remote end requested re-initialization of the compression history.
CTR frCirExtCompEncoderResetAckTx	1.3.6.1.4.1.208.46.1.2.1.25	Counter	read-only	The number of acknowledgments to reset requests transmitted by the router.
CTR frCirExtCompEncoderTxDiscarded	1.3.6.1.4.1.208.46.1.2.1.26	Counter	read-only	Number of packets discarded by the encoder due to buffer lacks or transmit queue overflows.

RFC description

Manages Frame Relay circuit extensions including encryption and compression functionality for virtual circuits.

Start monitoring Securicor WAN routers 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 SCA-FREXT-MIB

What Is SCA-FREXT-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description