REDSTONE-PPPOE-MIB

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Organization: Redstone Communications, Inc.

Last Updated: 1998-01-01

Category: DSL and Broadband Access

Description: Manages PPPoE subscriber session configuration, statistics, and lifecycle on Redstone BRAS routers.

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What Is REDSTONE-PPPOE-MIB?

REDSTONE-PPPOE-MIB is a Redstone Communications enterprise MIB for managing PPPoE (PPP over Ethernet) subscriber sessions on the company's broadband remote access server (BRAS) routers. It exposes a per-interface PPPoE configuration table (max sessions, lower-layer binding, row status) and a statistics table tracking PPPoE discovery-stage packet counters -- PADI, PADO, PADR -- alongside interface and sub-interface layering objects. Its monitoring value centers on subscriber session software health: tracking rsPPPoEIfStatsRxPADI/TxPADO/RxPADR volumes reveals subscriber connection-attempt rates, and comparing these against actual established sessions (via rsPPPoEIfMaxNumSessions) helps detect session-establishment failures or a PPPoE server nearing capacity. It is a self-contained Redstone enterprise MIB implementing the RFC 2516 PPPoE discovery protocol in vendor-specific object form. It is deployed on Redstone BRAS/edge routers in broadband access networks terminating large numbers of PPPoE subscriber sessions (e.g., DSL access), and operators can download the REDSTONE-PPPOE-MIB file to load it into their MIB browser for this monitoring.

IPNetwork Monitor allows you to monitor SNMP objects defined in REDSTONE-PPPOE-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

Redstone Communications BRAS router

Monitoring Examples

An operator would poll rsPPPoEIfStatsTable (rsPPPoEIfStatsEntry) for rsPPPoEIfStatsRxPADI, rsPPPoEIfStatsTxPADO, and rsPPPoEIfStatsRxPADR on a given rsPPPoEIfIfIndex to gauge subscriber connection-attempt volume and success rate during session setup. A high PADI count with low corresponding PADO/PADR responses would indicate the BRAS is failing to respond to discovery requests, possibly due to hitting rsPPPoEIfMaxNumSessions capacity on that interface. rsPPPoEIfRowStatus confirms whether the PPPoE binding on a given interface is currently active.

What Can Be Monitored

PPPoE discovery packet counters (PADI/PADO/PADR)
maximum sessions per interface
PPPoE interface row status
subscriber session establishment rate

Imported Objects

From IF-MIB

InterfaceIndex
InterfaceIndexOrZero

From REDSTONE-SMI

rsMgmt

OBJECT-IDENTITY

From REDSTONE-TC

RsNextIfIndex

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

RowStatus
TimeStamp

How to Use in IPNetwork Monitor

Example using rsPPPoEIfStatsRxPADI OID:

Select a Redstone Communications BRAS router (PPPoE subscriber session discovery statistics) 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 rsPPPoEIfStatsRxPADI 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. It reports the number of PADI packets received. 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 sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
rsPPPoEMIB	1.3.6.1.4.1.2773.2.18			The PPPoE MIB for the Redstone Communications Inc. enterprise.
rsPPPoEObjects	1.3.6.1.4.1.2773.2.18.1
rsPPPoEIfLayer	1.3.6.1.4.1.2773.2.18.1.1
RSN rsPPPoENextIfIndex	1.3.6.1.4.1.2773.2.18.1.1.1	RsNextIfIndex	read-only	Coordinate ifIndex value allocation for entries in rsPPPoEIfTable. A GET of this object returns the next available ifIndex value to be used to create an entry in the associated interface table; or zero, if no valid ifIndex value is available. This object also returns a value of zero when it is the lexicographic successor of a varbind presented in an SNMP GETNEXT or GETBULK request, for which circumstance it is assumed that ifIndex allocation is unintended. Successive GETs will typically return different values, thus avoiding collisions among cooperating management clients seeking to create table entries simultaneously.
rsPPPoEIfTable	1.3.6.1.4.1.2773.2.18.1.1.2		not-accessible	The parameters for the PPPoE service on this interface.
rsPPPoEIfEntry	1.3.6.1.4.1.2773.2.18.1.1.2.1		not-accessible	The Parameters for a particular PPPoE interface. Creating/deleting entries in this table causes corresponding entries for be created/deleted in ifTable/ifXTable/rsIfTable, and rsPPPoEIfStatsTable.
NUM rsPPPoEIfIfIndex	1.3.6.1.4.1.2773.2.18.1.1.2.1.1	InterfaceIndex	read-only	The ifIndex value of the corresponding ifEntry.
INT rsPPPoEIfMaxNumSessions	1.3.6.1.4.1.2773.2.18.1.1.2.1.2	INTEGER	read-write	The number of sessions allowed on the PPPoE interface, zero indicates unlimited
ROW rsPPPoEIfRowStatus	1.3.6.1.4.1.2773.2.18.1.1.2.1.3	RowStatus	read-create	Controls creation/deletion of entries in this table according to the RowStatus textual convention, constrained to support the following values only: createAndGo destroy To create an entry in this table, the following entry objects MUST be explicitly configured: rsPPPoEIfRowStatus rsPPPoEIfLowerIfIndex In addition, when creating an entry the following conditions must hold: A value for rsPPPoEIfIndex must have been determined previously, by reading rsPPPoENextIfIndex. The interface identified by rsPPPoEIfLowerIfIndex must exist, and must be an interface type that permits layering of PPPoE above it. A corresponding entry in ifTable/ifXTable/rsIfTable is created/destroyed as a result of creating/destroying an entry in this table.
NUM rsPPPoEIfLowerIfIndex	1.3.6.1.4.1.2773.2.18.1.1.2.1.4	InterfaceIndexOrZero	read-create	The ifIndex of an interface over which this PPPoE interface is to be layered. A value of zero indicates no layering. An implementation may choose to require that a nonzero value be configured at entry creation.
rsPPPoEIfStatsTable	1.3.6.1.4.1.2773.2.18.1.1.3		not-accessible	The statistics for the PPP over Ethernet Interface for the PPPoE service on this interface.
rsPPPoEIfStatsEntry	1.3.6.1.4.1.2773.2.18.1.1.3.1		not-accessible	The statistics for a particular PPPoE Interface.
C32 rsPPPoEIfStatsRxPADIEx	1.3.6.1.4.1.2773.2.18.1.1.3.1.1	Counter32	read-only	Number of PADI packets received.
C32 rsPPPoEIfStatsTxPADO	1.3.6.1.4.1.2773.2.18.1.1.3.1.2	Counter32	read-only	Number of PADO packets transmitted.
C32 rsPPPoEIfStatsRxPADR	1.3.6.1.4.1.2773.2.18.1.1.3.1.3	Counter32	read-only	Number of PADR packets received.
C32 rsPPPoEIfStatsTxPADS	1.3.6.1.4.1.2773.2.18.1.1.3.1.4	Counter32	read-only	Number of PADS packets transmitted.
C32 rsPPPoEIfStatsRxPADT	1.3.6.1.4.1.2773.2.18.1.1.3.1.5	Counter32	read-only	Number of PADT packets received.
C32 rsPPPoEIfStatsTxPADT	1.3.6.1.4.1.2773.2.18.1.1.3.1.6	Counter32	read-only	Number of PADT packets transmitted.
C32 rsPPPoEIfStatsRxInvVersion	1.3.6.1.4.1.2773.2.18.1.1.3.1.7	Counter32	read-only	Number of packets received with invalid version.
C32 rsPPPoEIfStatsRxInvCode	1.3.6.1.4.1.2773.2.18.1.1.3.1.8	Counter32	read-only	Number of packets received with invalid code.
C32 rsPPPoEIfStatsRxInvTags	1.3.6.1.4.1.2773.2.18.1.1.3.1.9	Counter32	read-only	Number of packets received with invalid tags.
C32 rsPPPoEIfStatsRxInvSession	1.3.6.1.4.1.2773.2.18.1.1.3.1.10	Counter32	read-only	Number of packets received with invalid session identifiers.
C32 rsPPPoEIfStatsRxInvTypes	1.3.6.1.4.1.2773.2.18.1.1.3.1.11	Counter32	read-only	Number of packets received with invalid types.
C32 rsPPPoEIfStatsRxInvPackets	1.3.6.1.4.1.2773.2.18.1.1.3.1.12	Counter32	read-only	Number of invalid packets received.
C32 rsPPPoEIfStatsRxInsufficientResources	1.3.6.1.4.1.2773.2.18.1.1.3.1.13	Counter32	read-only	Number of session requests that could not be honored due to invalid resources.
rsPPPoESubIfLayer	1.3.6.1.4.1.2773.2.18.1.2
RSN rsPPPoESubIfNextIfIndex	1.3.6.1.4.1.2773.2.18.1.2.1	RsNextIfIndex	read-only	Coordinate ifIndex value allocation for entries in rsPPPoESubIfTable. A GET of this object returns the next available ifIndex value to be used to create an entry in the associated interface table; or zero, if no valid ifIndex value is available. This object also returns a value of zero when it is the lexicographic successor of a varbind presented in an SNMP GETNEXT or GETBULK request, for which circumstance it is assumed that ifIndex allocation is unintended. Successive GETs will typically return different values, thus avoiding collisions among cooperating management clients seeking to create table entries simultaneously.
rsPPPoESubIfTable	1.3.6.1.4.1.2773.2.18.1.2.2		not-accessible	This table contains entries for PPPoE Subinterfaces present in the system.
rsPPPoESubIfEntry	1.3.6.1.4.1.2773.2.18.1.2.2.1		not-accessible	Each entry describes the characteristics of a PPPoE Subinterface. Creating/deleting entries in this table causes corresponding entries for be created /deleted in ifTable/ifXTable/rsIfTable.
NUM rsPPPoESubIfIndex	1.3.6.1.4.1.2773.2.18.1.2.2.1.1	InterfaceIndex	not-accessible	The ifIndex of the PPPoE Subinterface. When creating entries in this table, suitable values for this object are determined by reading rsPPPoESubNextIfIndex.
ROW rsPPPoESubIfRowStatus	1.3.6.1.4.1.2773.2.18.1.2.2.1.2	RowStatus	read-create	Controls creation/deletion of entries in this table according to the RowStatus textual convention, constrained to support the following values only: createAndGo destroy To create an entry in this table, the following entry objects MUST be explicitly configured: rsPPPoESubIfRowStatus rsPPPoESubIfLowerIfIndex In addition, when creating an entry the following conditions must hold: A value for rsPPPoESubIfIndex must have been determined previously, by reading rsPPPoESubIfNextIfIndex. The interface identified by rsPPPoESubIfLowerIfIndex must exist, and must be a PPPoE interface. A positive value configured for rsPPPoESubIfId must not already be assigned to another subinterface layered onto the same underlying PPPoE interface. A corresponding entry in ifTable/ifXTable/rsIfTable is created/destroyed as a result of creating/destroying an entry in this table.
NUM rsPPPoESubIfLowerIfIndex	1.3.6.1.4.1.2773.2.18.1.2.2.1.3	InterfaceIndexOrZero	read-create	The ifIndex of a PPPoE interface over which this PPPoE Subinterface is to be layered. A value of zero indicates no layering. An implementation may choose to require that a nonzero value be configured at entry creation.
I32 rsPPPoESubIfId	1.3.6.1.4.1.2773.2.18.1.2.2.1.4	Integer32	read-create	An integer identifier for the PPPoE subinterface, used in conjunction with the command-line interface. It is provided here for cross-reference purposes only. The value must be unique among subinterfaces configured on the same underlying PPPoE interface. If this object is not configured, or is configured with a value of -1, a nonzero value will be allocated internally and can be retrieved from this object after table entry creation has succeeded. A value of zero for this object is reserved for future use.
I32 rsPPPoESubIfSessionId	1.3.6.1.4.1.2773.2.18.1.2.2.1.5	Integer32	read-only	The current sessionId associated with this sub-interface.
rsPPPoEConformance	1.3.6.1.4.1.2773.2.18.4
rsPPPoECompliances	1.3.6.1.4.1.2773.2.18.4.1
rsPPPoECompliance	1.3.6.1.4.1.2773.2.18.4.1.1			The compliance statement for entities which implement the Redstone PPPoE MIB.
rsPPPoEGroups	1.3.6.1.4.1.2773.2.18.4.2
rsPPPoEGroup	1.3.6.1.4.1.2773.2.18.4.2.1			A collection of objects providing management of PPPoE interfaces in a Redstone product.
rsPPPoESubIfGroup	1.3.6.1.4.1.2773.2.18.4.2.2			A collection of objects providing management of PPPoE subinterfaces in a Redstone product.

RFC description

Manages PPPoE (Point-to-Point Protocol over Ethernet) interfaces and subinterfaces on Redstone Communications devices.

Start monitoring Redstone Communications BRAS router (PPPoE subscriber session discovery statistics) 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 REDSTONE-PPPOE-MIB