ALTIGA-MULTILINK-STATS-MIB

All MIBs › ALTIGA-MULTILINK-STATS-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2002-09-05

Category: VPN and Security, Vendor: Altiga

Description: Altiga (Cisco VPN 3000) multilink PPP statistics MIB for monitoring bundle aggregation and link utilization.

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What Is ALTIGA-MULTILINK-STATS-MIB?

ALTIGA-MULTILINK-STATS-MIB is a proprietary MIB from Altiga Networks (Cisco VPN 3000 Series Concentrator) for tracking Multilink PPP (MLP) bundle statistics, where multiple physical or dial-up links are bonded together for extra bandwidth. It exposes per-bundle counters for transmitted and received octets and packets, MLP fragment and packet counts, non-MLP packet counts, and measured throughput. This is a performance/traffic-health MIB rather than a hardware-sensor MIB: alMultiLinkStatsTxThroughput and the fragment/packet counters reveal whether link aggregation is actually delivering the expected bandwidth, and a bundle entry with an inactive alMultiLinkStatsRowStatus points to a configuration or link problem. It builds on the standard multilink PPP concept used alongside the concentrator's PPP/L2TP dial-up stack and shares its enterprise structure with sibling ALTIGA-*-STATS MIBs. It is deployed on Cisco/Altiga VPN 3000 concentrators aggregating multiple WAN or dial-up links for increased remote-access bandwidth. Engineers can download the ALTIGA-MULTILINK-STATS-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in ALTIGA-MULTILINK-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 administrator would poll alMultiLinkStatsTable indexed by alMultiLinkStatsIndex to read alMultiLinkStatsTxThroughput and compare alMultiLinkStatsTxMlpPackets against alMultiLinkStatsTxNonMlpPackets, confirming the bundle is aggregating traffic across its member links as expected. A bundle showing near-zero throughput while alMultiLinkStatsRowStatus is active would flag a stalled multilink connection needing investigation. Tracking alMultiLinkStatsRxOctets and alMultiLinkStatsRxPackets over time helps baseline normal bundle utilization.

What Can Be Monitored

multilink bundle transmit/receive throughput
MLP fragment and packet counts
bundle row status
transmitted/received octets and packets per bundle

Imported Objects

From ALTIGA-GLOBAL-REG

alMultiLinkMibModule

OBJECT-IDENTITY

From ALTIGA-MIB

alMultiLinkGroup	OBJECT-IDENTITY
alStatsMultiLink	OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Gauge32
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus

How to Use in IPNetwork Monitor

Example using alMultiLinkStatsTxThroughput 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 alMultiLinkStatsTxThroughput 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 transmitted bits per second. 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 Gauge32-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
altigaMultiLinkStatsMibModule	1.3.6.1.4.1.3076.1.1.39.2			The Altiga MultiLink Statistics MIB models counters and objects that are of management interest for multilinks. Acronyms The following acronyms are used in this document: MIB: Management Information Base MLP: MultiLink Protocol
altigaMultiLinkStatsMibConformance	1.3.6.1.4.1.3076.1.1.39.2.1
altigaMultiLinkStatsMibCompliances	1.3.6.1.4.1.3076.1.1.39.2.1.1
altigaMultiLinkStatsMibCompliance	1.3.6.1.4.1.3076.1.1.39.2.1.1.1			The compliance statement for agents which implement the Altiga MultiLink Statistics MIB.
altigaMultiLinkStatsGroup	1.3.6.1.4.1.3076.2.1.1.1.34.2			The objects for the MultiLink Bundle statistics.
alStatsMultiLinkGlobal	1.3.6.1.4.1.3076.2.1.2.34.1
alMultiLinkStatsTable	1.3.6.1.4.1.3076.2.1.2.34.2		not-accessible	List of active bundles sessions.
alMultiLinkStatsEntry	1.3.6.1.4.1.3076.2.1.2.34.2.1		not-accessible	An entry in the alMultiLinkStatsTable.
ROW alMultiLinkStatsRowStatus	1.3.6.1.4.1.3076.2.1.2.34.2.1.1	RowStatus	read-write	The status of this row.
I32 alMultiLinkStatsIndex	1.3.6.1.4.1.3076.2.1.2.34.2.1.2	Integer32	read-only	The unique MultiLink Bundle index for this row.
U32 alMultiLinkStatsTxOctets	1.3.6.1.4.1.3076.2.1.2.34.2.1.3	Unsigned32	read-only	The number of transmitted octets.
U32 alMultiLinkStatsTxPackets	1.3.6.1.4.1.3076.2.1.2.34.2.1.4	Unsigned32	read-only	The number of transmitted packets.
U32 alMultiLinkStatsTxMlpFragments	1.3.6.1.4.1.3076.2.1.2.34.2.1.5	Unsigned32	read-only	The number of transmitted MLP packet fragments.
U32 alMultiLinkStatsTxMlpPackets	1.3.6.1.4.1.3076.2.1.2.34.2.1.6	Unsigned32	read-only	The number of transmitted MLP complete packets.
U32 alMultiLinkStatsTxNonMlpPackets	1.3.6.1.4.1.3076.2.1.2.34.2.1.7	Unsigned32	read-only	The number of transmitted non-MLP complete packets.
G32 alMultiLinkStatsTxThroughputEx	1.3.6.1.4.1.3076.2.1.2.34.2.1.8	Gauge32	read-only	The number of transmitted bits per second
U32 alMultiLinkStatsRxOctets	1.3.6.1.4.1.3076.2.1.2.34.2.1.9	Unsigned32	read-only	The number of received octets.
U32 alMultiLinkStatsRxPackets	1.3.6.1.4.1.3076.2.1.2.34.2.1.10	Unsigned32	read-only	The number of received packets.
U32 alMultiLinkStatsRxMlpFragments	1.3.6.1.4.1.3076.2.1.2.34.2.1.11	Unsigned32	read-only	The number of received MLP packet fragments.
U32 alMultiLinkStatsRxMlpPackets	1.3.6.1.4.1.3076.2.1.2.34.2.1.12	Unsigned32	read-only	The number of received MLP complete packets.
U32 alMultiLinkStatsRxNonMlpPackets	1.3.6.1.4.1.3076.2.1.2.34.2.1.13	Unsigned32	read-only	The number of received non-MLP complete packets.
G32 alMultiLinkStatsRxThroughput	1.3.6.1.4.1.3076.2.1.2.34.2.1.14	Gauge32	read-only	The number of received bits per second
U32 alMultiLinkStatsRxLostEnd	1.3.6.1.4.1.3076.2.1.2.34.2.1.15	Unsigned32	read-only	The number of missing MLP packets with no end bit.
U32 alMultiLinkStatsRxStalePackets	1.3.6.1.4.1.3076.2.1.2.34.2.1.16	Unsigned32	read-only	The number of received MLP packet fragments gone stale.
U32 alMultiLinkStatsRxStaleFragments	1.3.6.1.4.1.3076.2.1.2.34.2.1.17	Unsigned32	read-only	The number of received MLP fragments orphans gone stale.
U32 alMultiLinkStatsRxDroppedFragments	1.3.6.1.4.1.3076.2.1.2.34.2.1.18	Unsigned32	read-only	The number of received MLP packet fragments discarded.
U32 alMultiLinkStatsRxOOSFragments	1.3.6.1.4.1.3076.2.1.2.34.2.1.19	Unsigned32	read-only	The number of received out-of-sequence MLP packet fragments
U32 alMultiLinkStatsIdleTmrCleanup	1.3.6.1.4.1.3076.2.1.2.34.2.1.20	Unsigned32	read-only	The number of times idle timer forwarded MLP complete packets.

RFC description

MultiLink Protocol statistics and counters for active bundle sessions.

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