ALTIGA-PPPOE-STATS-MIB

All MIBs › ALTIGA-PPPOE-STATS-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2007-07-11

Category: VPN and Security, Vendor: Altiga

Description: Altiga (Cisco VPN 3000) PPPoE statistics MIB for monitoring PPPoE session discovery and establishment events.

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What Is ALTIGA-PPPOE-STATS-MIB?

ALTIGA-PPPOE-STATS-MIB is a vendor MIB from Altiga Networks (later Cisco VPN 3000 series) that models statistics for PPP over Ethernet (PPPoE) session establishment on the device's interfaces. It exposes both global counters (active/total/max sessions) and a per-interface table tracking PPPoE discovery-stage events such as PADT (terminate) messages, generic and malformed packet errors, and PADI/PADR timeout counts. Its monitoring purpose is software/protocol-state health on each interface: an admin can see whether PPPoE sessions are establishing successfully or repeatedly timing out/erroring during discovery, which points to upstream access-concentrator or line problems. It depends on the standard PPPoE (RFC 2516) discovery protocol terminology for its counters but is otherwise a self-contained vendor statistics MIB. It is deployed on Cisco/Altiga VPN 3000 concentrators used as PPPoE clients or servers in broadband/remote-access deployments. Engineers can download the ALTIGA-PPPOE-STATS-MIB file directly to load it into their MIB browser.

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

Cisco/Altiga VPN 3000 Series Concentrator

Monitoring Examples

An operator polls alPPPoEStatsActiveSessions and alPPPoEStatsMaxSessions to see how close the device is to its session capacity, and walks alPPPoEStatsIfTable/alPPPoEStatsIfEntry by alPPPoEStatsIfIndex to check per-interface alPPPoEStatsIfPADITimeouts and alPPPoEStatsIfPADRTimeouts. A rising count of alPPPoEStatsIfMalformedPacketsRx or alPPPoEStatsIfGenericErrorsRx on one interface would point to a faulty upstream PPPoE access concentrator or cabling issue on that link. alPPPoEStatsIfPADTRx/Tx counts help confirm sessions are being torn down cleanly rather than dropping abruptly.

What Can Be Monitored

active/total/max PPPoE sessions
per-interface PADT rx/tx counts
PADI/PADR discovery timeouts
generic errors received
malformed packets received

Imported Objects

From ALTIGA-GLOBAL-REG

alPPPoEMibModule

OBJECT-IDENTITY

From ALTIGA-MIB

alPPPoEGroup	OBJECT-IDENTITY
alStatsPPPoE	OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
MacAddress

How to Use in IPNetwork Monitor

Example using alPPPoEStatsTotalSessions OID:

Select a Cisco (Altiga) VPN 3000 Series Concentrator (legacy) 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 alPPPoEStatsTotalSessions into the Find box to locate it in the OID tree, then select it and click OK. It reports the total Sessions since last reset. 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
altigaPPPoEStatsMibModule	1.3.6.1.4.1.3076.1.1.45.2			The Altiga PPPoE Statistics MIB models counters and objects that are of management interest for PPPoE. Acronyms The following acronyms are used in this document: MIB: Management Information Base PADI: PPPoE Active Discovery Initiation PADO: PPPoE Active Discovery Offer PADS: PPPoE Active Discovery Session-confirmation PADT: PPPoE Active Discovery Terminate PPPoE: Point-to-Point Protocol over Ethernet
altigaPPPoEStatsMibConformance	1.3.6.1.4.1.3076.1.1.45.2.1
altigaPPPoEStatsMibCompliances	1.3.6.1.4.1.3076.1.1.45.2.1.1
altigaPPPoEStatsMibCompliance	1.3.6.1.4.1.3076.1.1.45.2.1.1.1			The compliance statement for agents which implement the Altiga PPPoE Statistics MIB.
altigaPPPoEStatsGroup	1.3.6.1.4.1.3076.2.1.1.1.40.2			The objects for PPPoE Statistics.
alStatsPPPoEGlobal	1.3.6.1.4.1.3076.2.1.2.40.1
G32 alPPPoEStatsActiveSessions	1.3.6.1.4.1.3076.2.1.2.40.1.1	Gauge32	read-only	The number of active sessions on the interface (currently should max at 1).
C32 alPPPoEStatsTotalSessionsEx	1.3.6.1.4.1.3076.2.1.2.40.1.2	Counter32	read-only	Total Sessions since last reset.
C32 alPPPoEStatsMaxSessions	1.3.6.1.4.1.3076.2.1.2.40.1.3	Counter32	read-only	Peak number of sessions since last reset.
alPPPoEStatsIfTable	1.3.6.1.4.1.3076.2.1.2.40.2		not-accessible	Contains the PPPoE binding entries for stats.
alPPPoEStatsIfEntry	1.3.6.1.4.1.3076.2.1.2.40.2.1		not-accessible	Contains the PPPoE entries for the status binding table.
I32 alPPPoEStatsIfIndex	1.3.6.1.4.1.3076.2.1.2.40.2.1.1	Integer32	read-only	The interface index for PPPoE status binding table.
C32 alPPPoEStatsIfPADTRx	1.3.6.1.4.1.3076.2.1.2.40.2.1.2	Counter32	read-only	Number of PADT received.
C32 alPPPoEStatsIfPADTTx	1.3.6.1.4.1.3076.2.1.2.40.2.1.3	Counter32	read-only	Number of PADT transmitted.
C32 alPPPoEStatsIfGenericErrorsRx	1.3.6.1.4.1.3076.2.1.2.40.2.1.4	Counter32	read-only	Number of Generic Errors Received.
C32 alPPPoEStatsIfMalformedPacketsRx	1.3.6.1.4.1.3076.2.1.2.40.2.1.5	Counter32	read-only	Number of back packets received.
C32 alPPPoEStatsIfPADITimeouts	1.3.6.1.4.1.3076.2.1.2.40.2.1.6	Counter32	read-only	Number of times timedout waiting for a PADO.
C32 alPPPoEStatsIfPADRTimeouts	1.3.6.1.4.1.3076.2.1.2.40.2.1.7	Counter32	read-only	Number of times timed out waiting for a PADS.
C32 alPPPoEStatsIfMultPADORx	1.3.6.1.4.1.3076.2.1.2.40.2.1.8	Counter32	read-only	Number of times we received more than 1 PADO.
I32 alPPPoEStatsIfSessionID	1.3.6.1.4.1.3076.2.1.2.40.2.1.9	Integer32	read-only	Session ID given by the AC.
MAC alPPPoEStatsIfPeerAddr	1.3.6.1.4.1.3076.2.1.2.40.2.1.10	MacAddress	read-only	MAC address of the remote AC.
INT alPPPoEStatsIfSessionState	1.3.6.1.4.1.3076.2.1.2.40.2.1.11	INTEGER	read-only	State that the session is in.
I32 alPPPoEStatsIfVersion	1.3.6.1.4.1.3076.2.1.2.40.2.1.12	Integer32	read-only	Version as given in the PPPoE RFC.
I32 alPPPoEStatsIfType	1.3.6.1.4.1.3076.2.1.2.40.2.1.13	Integer32	read-only	Type as given in the PPPoE RFC.
U32 alPPPoEStatsIfConnectTime	1.3.6.1.4.1.3076.2.1.2.40.2.1.14	Unsigned32	read-only	Time_t of when the session was established.
U32 alPPPoEStatsIfDuration	1.3.6.1.4.1.3076.2.1.2.40.2.1.15	Unsigned32	read-only	Number of seconds since the session was established.
STR alPPPoEStatsIfPeerName	1.3.6.1.4.1.3076.2.1.2.40.2.1.16	DisplayString	read-only	UTF-8 string of the AC name.
OCT alPPPoEStatsIfACCookie	1.3.6.1.4.1.3076.2.1.2.40.2.1.17	OCTET STRING	read-only	Binary sequence representing the AC cookie given in negotiations.
OCT alPPPoEStatsIfHostUnique	1.3.6.1.4.1.3076.2.1.2.40.2.1.18	OCTET STRING	read-only	Binary sequence representing the value we assigned the PADI.
OCT alPPPoEStatsIfRelaySessID	1.3.6.1.4.1.3076.2.1.2.40.2.1.19	OCTET STRING	read-only	12 octets representing the Relay session if one exists.

RFC description

Manages PPPoE (Point-to-Point Protocol over Ethernet) statistics for Cisco/Altiga VPN appliances; vendor-private PPPoE performance monitoring.

Start monitoring Cisco (Altiga) VPN 3000 Series Concentrators (legacy) 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 ALTIGA-PPPOE-STATS-MIB