RBN-BGP-ACCOUNTING-MIB

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Organization: RedBack Networks, Inc.

Last Updated: 2005--0-9-

Category: BGP, Vendor: Ericsson

Description: Manages per-BGP-peer traffic accounting and byte counters on Redback SmartEdge routers.

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What Is RBN-BGP-ACCOUNTING-MIB?

RBN-BGP-ACCOUNTING-MIB is a vendor-specific module for Redback SmartEdge routers implementing BGP-policy-based traffic accounting, tracking IP traffic differentiated by BGP policy attributes such as community lists or AS paths. It exposes per-bucket traffic counters (packet and octet counts) tied to a circuit/interface and SNMP context, allowing traffic to be broken down by policy classification rather than just physical interface. Its monitoring role is primarily performance/traffic accounting rather than hardware fault detection: administrators poll rbnBpaInPacketCount and rbnBpaInOctetCount per rbnBpaBucketIndex to track how much traffic matches specific BGP policy classes on a given circuit, useful for capacity planning, billing, or detecting unexpected traffic pattern shifts. It depends on the router's underlying BGP routing configuration (community lists, AS-path policies) and SNMP context-based access as defined in SNMPv2 conventions. It is typically deployed on Redback SmartEdge BRAS/router platforms in ISP networks doing policy-based traffic accounting per BGP peer or route-class, and the RBN-BGP-ACCOUNTING-MIB download is available for import into a MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in RBN-BGP-ACCOUNTING-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

Redback SmartEdge router

Monitoring Examples

An administrator would poll rbnBpaTable/rbnBpaEntry, correlating rbnBpaBucketIndex with rbnBpaInterfaceName and rbnBpaCircuitDescr to see packet and octet counts (rbnBpaInPacketCount, rbnBpaInOctetCount) accumulated for a specific BGP policy bucket. A sudden spike or drop in these counters for a given rbnBpaContextName would indicate a shift in traffic matching that BGP community/AS-path policy, useful for spotting route-leak or peering-traffic anomalies. This table is typically pulled periodically to feed traffic accounting or billing systems keyed by BGP policy class.

What Can Be Monitored

per-policy inbound packet count
per-policy inbound octet count
BGP accounting bucket index
circuit/interface traffic association
SNMP context-scoped accounting

Imported Objects

From IF-MIB

ifIndex

OBJECT-TYPE

From RBN-SMI

rbnMgmt

OBJECT-IDENTITY

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter64
Integer32
MODULE-IDENTITY
OBJECT-TYPE

How to Use in IPNetwork Monitor

Example using rbnBpaInPacketCount OID:

Select a Redback SmartEdge router (BGP-policy-based traffic accounting) 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 rbnBpaInPacketCount 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 total number of packets received for a particular bgp routing policy on an interface. 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 Counter64-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
rbnBgpPolAcctMIB	1.3.6.1.4.1.2352.2.20			The BGP policy based accounting MIB defines necessary objects to account for IP traffic differentially via the BGP policies (e.g., community list, AS path). All mib objects defined in the module are viewed within the context identified in the SNMP protocol (i.e. the community string in v1/v2c or the contextName in v3).
rbnBgpPolAcctMIBObjects	1.3.6.1.4.1.2352.2.20.1
rbnBpaTable	1.3.6.1.4.1.2352.2.20.1.1		not-accessible	A list of BGP Policy Accounting entries
rbnBpaEntry	1.3.6.1.4.1.2352.2.20.1.1.1		not-accessible	An entry contains statistics applicable to a particular bgp based routing policy set on a particular interface. The ifIndex instances referenced by this table represent a port, channel, sub-channel or circuit layer that supports the IF-MIB ifPacketGroup, ifHCPacketGroup or ifVHCPacketGroup, and is bound to an IP interface for which BGP policy based accounting is enabled. Since the IF-MIB may provide support for a subset of the physical interfaces available on the system, it follows that support for BGP policy based accounting information in this MIB is limited to the same subset of physical interfaces supported in the IF-MIB.
I32 rbnBpaBucketIndex	1.3.6.1.4.1.2352.2.20.1.1.1.1	Integer32	read-only	An integer value greater than 0, that uniquely identifies a bgp routing policy set on this interface.
C64 rbnBpaInPacketCountEx	1.3.6.1.4.1.2352.2.20.1.1.1.2	Counter64	read-only	The total number of packets received for a particular bgp routing policy on an interface.
C64 rbnBpaInOctetCount	1.3.6.1.4.1.2352.2.20.1.1.1.3	Counter64	read-only	The total number of octets received for a particular bgp routing policy on an interface.
STR rbnBpaCircuitDescr	1.3.6.1.4.1.2352.2.20.1.1.1.4	SnmpAdminString	read-only	A descriptive version of the interface that is consistent with information displayed in the CLI. This string is formatted as slot/port:channel:subchannel authority/level/index, with the exception that channel and subchannel are only included when appropriate. For example, 4/1 1/2/7, 4/1:1 1/2/7 or 4/1:1:1 1/2/7. If a circuit description is not available then this object contains a zero-length string
STR rbnBpaInterfaceName	1.3.6.1.4.1.2352.2.20.1.1.1.5	SnmpAdminString	read-only	The name of the ip interface bound to a circuit. If ip interface name is not available then this object contains a zero length string
STR rbnBpaContextName	1.3.6.1.4.1.2352.2.20.1.1.1.6	SnmpAdminString	read-only	The name of context in which this IP interface is defined. If context information is not available then this object contains a zero lenght string
rbnBgpPolAcctMIBConformance	1.3.6.1.4.1.2352.2.20.3
rbnBgpPolAcctMIBCompliances	1.3.6.1.4.1.2352.2.20.3.1
rbnBgpPolAcctMIBCompliance	1.3.6.1.4.1.2352.2.20.3.1.1			The compliance statement for entities which implement this Redback BGP Policy Traffic Accounting MIB.
rbnBgpPolAcctMIBCompliance1	1.3.6.1.4.1.2352.2.20.3.1.2			The compliance statement for entities which implement this Redback BGP Policy Traffic Accounting MIB.
rbnBgpPolAcctMIBGroups	1.3.6.1.4.1.2352.2.20.3.2
rbnBpaTableGroup	1.3.6.1.4.1.2352.2.20.3.2.1			A collection of objects providing customer traffic related parameters.
rbnBpaTableGroup1	1.3.6.1.4.1.2352.2.20.3.2.2			Collection of objects providing more information about traffic-index

RFC description

Tracks IP traffic accounting based on BGP routing policies (communities, AS paths) for differential traffic analysis on RedBack routers.

Start monitoring Redback SmartEdge router (BGP-policy-based traffic accounting) 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 RBN-BGP-ACCOUNTING-MIB