RBN-EPSU-MIB

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Organization: Redback Networks, Inc.

Last Updated: 2009-09-23

Category: Environmental Monitoring, Vendor: Ericsson

Description: Manages External Power Supply Unit (EPSU) status and operational parameters on Redback SmartEdge BRAS chassis.

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What Is RBN-EPSU-MIB?

Despite the short description mentioning a power supply unit, "EPSU" here stands for Evolved Packet System User plane — this Redback/Ericsson SmartEdge enterprise MIB reports user-plane (bearer/data) traffic statistics for a mobile EPC gateway rather than chassis power hardware, as its own module description confirms. It exposes downlink and uplink packet/octet counters over the S1-U interface (between eNodeB and gateway) and the S5/S8 GTP interface (between gateway and PDN gateway), including packets dropped by policing, discarded due to bearer issues, or dropped because the UE was idle. Its monitoring focus is software/traffic-plane health of the mobile gateway: downlink and uplink drop/discard counters reveal user-plane packet loss, policing-specific drop counters isolate loss caused by QoS/rate-limiting policy versus other causes, and idle-UE drop counts highlight packets discarded because a subscriber's radio bearer was paged/idle. It depends on the 3GPP EPS architecture's S1-U and S5/S8 GTP-U interface definitions for its counters. It is deployed on Ericsson SmartEdge platforms functioning as EPC user-plane gateways (SGW/PGW) in mobile operator networks. Engineers can download the RBN-EPSU-MIB file directly to load it into their MIB browser.

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

Ericsson SmartEdge / Redback EPC gateway (mobile user-plane function, e.g. SGW/PGW-type role)

Monitoring Examples

An operator trends rbnEpsuS1uDlPktsSent/rbnEpsuS1uDlOctetsSent against rbnEpsuS1uDlPktsDropped to compute a downlink drop rate on the S1-U interface, distinguishing congestion-driven policing drops (rbnEpsuS1uDlPolicingPktsDropped) from idle-UE drops (rbnEpsuS1uDlUeIdlePktsDropped). A spike in rbnEpsuS1uUlPktsDiscarded or rbnEpsuS1uUlBearerPktsDiscarded on the uplink side would indicate bearer-level problems affecting subscriber data, while rbnEpsuS5S8GtpDlPktsRcvd is checked to confirm the gateway is still receiving downlink traffic from its PDN gateway peer.

What Can Be Monitored

S1-U downlink/uplink packets and octets
S1-U packets dropped by policing
S1-U packets dropped for idle UE
uplink bearer packets discarded
S5/S8 GTP downlink packets received

Imported Objects

From RBN-SMI

rbnMgmt

OBJECT-IDENTITY

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter64
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

How to Use in IPNetwork Monitor

Example using rbnEpsuS1uDlPktsSent OID:

Select an Ericsson SmartEdge / Redback EPC gateway, mobile user-plane function (SGW/PGW-type role) 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 rbnEpsuS1uDlPktsSent into the Find box to locate it in the OID tree, then select it and click OK. It reports the total number of downlink GTP payload packets sent to eNodeBs over the S1-U 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 (in Packets), 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
rbnEpsuMIB	1.3.6.1.4.1.2352.2.47			Evolved Packet System (EPS) user plane statistics.
rbnEpsuNotifcationGroup	1.3.6.1.4.1.2352.2.47.0
rbnEpsuStatMIBObjects	1.3.6.1.4.1.2352.2.47.1
rbnEpsuS1uGtp	1.3.6.1.4.1.2352.2.47.1.1
C64 rbnEpsuS1uDlPktsSentEx	1.3.6.1.4.1.2352.2.47.1.1.1	Counter64	read-only	Total number of downlink GTP payload packets sent to eNodeBs over the S1-U interface.
C64 rbnEpsuS1uDlOctetsSent	1.3.6.1.4.1.2352.2.47.1.1.2	Counter64	read-only	Total number of octets in downlink GTP payload packets sent to eNodeBs over the S1-U interface.
C64 rbnEpsuS1uDlPktsDropped	1.3.6.1.4.1.2352.2.47.1.1.3	Counter64	read-only	Total number of downlink GTP payload packets dropped that should have been sent to eNodeBs over the S1-U interface.
C64 rbnEpsuS1uDlPolicingPktsDropped	1.3.6.1.4.1.2352.2.47.1.1.4	Counter64	read-only	Total number of downlink GTP payload packets dropped due to MBR policing that should have been sent to eNodeBs over the S1-U interface.
C64 rbnEpsuS1uDlUeIdlePktsDropped	1.3.6.1.4.1.2352.2.47.1.1.5	Counter64	read-only	Total number of downlink GTP payload packets which should have been sent to eNodeBs over the S1-U interface but were dropped due to UE in the idle mode, or the buffer has become full, or the UE has not been activated in a timely manner.
C64 rbnEpsuS1uUlPktsRcvd	1.3.6.1.4.1.2352.2.47.1.1.6	Counter64	read-only	Total number of uplink GTP payload packets received from eNodeBs over the S1-U interface
C64 rbnEpsuS1uUlOctetsRcvd	1.3.6.1.4.1.2352.2.47.1.1.7	Counter64	read-only	Total number of octets in uplink GTP payload packets received from eNodeBs over the S1-U interface.
C64 rbnEpsuS1uUlPktsDiscarded	1.3.6.1.4.1.2352.2.47.1.1.8	Counter64	read-only	Total number of discarded uplink payload GTP packets received from eNodeBs over the S1-U interface.
C64 rbnEpsuS1uUlBearerPktsDiscarded	1.3.6.1.4.1.2352.2.47.1.1.9	Counter64	read-only	Total number of uplink payload GTP packets received from eNodeBs over the S1-U interface that were discarded due to bearer validation failure.
C64 rbnEpsuS1uUlPolicingPktsDiscarded	1.3.6.1.4.1.2352.2.47.1.1.10	Counter64	read-only	Total number of uplink GTP payload packets received from eNodeBs over the S1-U interface that were discarded due to MBR policing.
rbnEpsuSgwGtp	1.3.6.1.4.1.2352.2.47.1.2
C64 rbnEpsuS5S8GtpDlPktsRcvd	1.3.6.1.4.1.2352.2.47.1.2.1	Counter64	read-only	Total number of downlink GTP payload packets received from the PGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpDlOctetsRcvd	1.3.6.1.4.1.2352.2.47.1.2.2	Counter64	read-only	Total number of octets in downlink GTP payload packets received from the PGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpDlPktsDiscarded	1.3.6.1.4.1.2352.2.47.1.2.3	Counter64	read-only	Total number of discarded downlink GTP payload packets received from the PGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpUlPktsSent	1.3.6.1.4.1.2352.2.47.1.2.4	Counter64	read-only	Total number of uplink GTP payload packets sent tp the PGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpUlOctetsSent	1.3.6.1.4.1.2352.2.47.1.2.5	Counter64	read-only	Total number of octets in uplink GTP payload packets sent to the PGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpUlPktsDropped	1.3.6.1.4.1.2352.2.47.1.2.6	Counter64	read-only	Total number of dropped uplink GTP payload packets that should have been sent to the PGW over the S5/S8 interface.
rbnEpsuPgwGtp	1.3.6.1.4.1.2352.2.47.1.3
C64 rbnEpsuS5S8GtpDlPktsSent	1.3.6.1.4.1.2352.2.47.1.3.1	Counter64	read-only	Total number of downlink GTP payload packets sent to SGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpDlOctetsSent	1.3.6.1.4.1.2352.2.47.1.3.2	Counter64	read-only	Total number of octets in downlink GTP payload packets sent to SGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpDlPktsDropped	1.3.6.1.4.1.2352.2.47.1.3.3	Counter64	read-only	Total number of dropped downlink GTP payload packets that should have been sent to SGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpDlPolicingPktsDropped	1.3.6.1.4.1.2352.2.47.1.3.4	Counter64	read-only	Total number of downlink GTP payload packets dropped due to MBR policing that should have been sent to SGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpUlPktsRcvd	1.3.6.1.4.1.2352.2.47.1.3.5	Counter64	read-only	Total number of uplink GTP payload packets received from SGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpUlOctetsRcvd	1.3.6.1.4.1.2352.2.47.1.3.6	Counter64	read-only	Total number of octets in uplink GTP payload packets received from SGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpUlPktsDiscarded	1.3.6.1.4.1.2352.2.47.1.3.7	Counter64	read-only	Total number of discarded uplink GTP payload packets received from SGW over the S5/S8 interface.
C64 rbnEpsuS5S8GtpUlBearerPktsDiscarded	1.3.6.1.4.1.2352.2.47.1.3.8	Counter64	read-only	Total number of uplink GTP payload packets received from SGW over the S5/S8 interface that were discarded due to bearer validation failure.
C64 rbnEpsuS5S8GtpUlPolicingPktsDiscarded	1.3.6.1.4.1.2352.2.47.1.3.9	Counter64	read-only	Total number of uplink GTP payload packets received from SGW over the S5/S8 interface that were discarded due to MBR policiing.
rbnEpsuSgi	1.3.6.1.4.1.2352.2.47.1.4
C64 rbnEpsuSgiDlPktsRcvd	1.3.6.1.4.1.2352.2.47.1.4.1	Counter64	read-only	Total number of downlink user payload packets received over the SGi interface.
C64 rbnEpsuSgiDlOctetsRcvd	1.3.6.1.4.1.2352.2.47.1.4.2	Counter64	read-only	Total number of octets in downlink user payload packets received over the SGi interface.
C64 rbnEpsuSgiDlV6PktsRcvd	1.3.6.1.4.1.2352.2.47.1.4.3	Counter64	read-only	Total number of downlink IPv6 user payload packets received over the SGi interface.
C64 rbnEpsuSgiDlV6OctetsRcvd	1.3.6.1.4.1.2352.2.47.1.4.4	Counter64	read-only	Total number of octets in downlink IPv6 user payload packets received over the SGi interface.
C64 rbnEpsuSgiDlPktsDiscarded	1.3.6.1.4.1.2352.2.47.1.4.5	Counter64	read-only	Total number of discarded downlink user payload packets received over the SGi interface.
C64 rbnEpsuSgiUlPktsSent	1.3.6.1.4.1.2352.2.47.1.4.6	Counter64	read-only	Total number of uplink user payload packets sent over the SGi interface.
C64 rbnEpsuSgiUlOctetsSent	1.3.6.1.4.1.2352.2.47.1.4.7	Counter64	read-only	Total number of octets in uplink user payload packets sent over the SGi interface.
C64 rbnEpsuSgiUlV6PktsSent	1.3.6.1.4.1.2352.2.47.1.4.8	Counter64	read-only	Total number of uplink IPv6 user payload packets sent over the SGi interface.
C64 rbnEpsuSgiUlV6OctetsSent	1.3.6.1.4.1.2352.2.47.1.4.9	Counter64	read-only	Total number of octets in uplink user payload packets sent over the SGi interface.
C64 rbnEpsuSgiUlPktsDropped	1.3.6.1.4.1.2352.2.47.1.4.10	Counter64	read-only	Total number of dropped uplink user payload packets that should have been sent over the SGi interface.
rbnEpsuSgiApn	1.3.6.1.4.1.2352.2.47.1.5
rbnEpsuSgiApnStatsTable	1.3.6.1.4.1.2352.2.47.1.5.1		not-accessible	This table contains the user payload packet counters per Access Point Name (APN).
rbnEpsuSgiApnStatsEntry	1.3.6.1.4.1.2352.2.47.1.5.1.1		not-accessible	The user payload packet counters for an APN.
U32 rbnEpsuSgiApnIndex	1.3.6.1.4.1.2352.2.47.1.5.1.1.1	Unsigned32	not-accessible	An integer value assigned to uniquely identify the entry.
STR rbnEpsuSgiApnName	1.3.6.1.4.1.2352.2.47.1.5.1.1.2	SnmpAdminString	read-only	The access point name (APN) associated with rbnEpsuSgiApnIndex.
C64 rbnEpsuSgiApnDlPktsRcvd	1.3.6.1.4.1.2352.2.47.1.5.1.1.3	Counter64	read-only	Total number of downlink user payload packets received over the SGi interface for the APN.
C64 rbnEpsuSgiApnDlOctetsRcvd	1.3.6.1.4.1.2352.2.47.1.5.1.1.4	Counter64	read-only	Total number of octets in downlink user payload packets received over the SGi interface for the APN.
C64 rbnEpsuSgiApnDlPktsDiscarded	1.3.6.1.4.1.2352.2.47.1.5.1.1.5	Counter64	read-only	Total number of discarded downlink user payload packets received over the SGi interface for the APN.
C64 rbnEpsuSgiApnUlPktsSent	1.3.6.1.4.1.2352.2.47.1.5.1.1.6	Counter64	read-only	Total number of uplink user payload packets sent over the SGi interface for the APN.
C64 rbnEpsuSgiApnUlOctetsSent	1.3.6.1.4.1.2352.2.47.1.5.1.1.7	Counter64	read-only	Total number of octets in uplink user payload packets sent over the SGi interface for the APN.
C64 rbnEpsuSgiApnUlPktsDropped	1.3.6.1.4.1.2352.2.47.1.5.1.1.8	Counter64	read-only	Total number of dropped uplink payload GTP packets that should have been sent over the SGi interface for the APN.
C64 rbnEpsuSgiApnDlV6PktsRcvd	1.3.6.1.4.1.2352.2.47.1.5.1.1.9	Counter64	read-only	Total number of downlink IPv6 user payload packets received over the SGi interface for the APN.
C64 rbnEpsuSgiApnDlV6OctetsRcvd	1.3.6.1.4.1.2352.2.47.1.5.1.1.10	Counter64	read-only	Total number of octets in downlink IPv6 user payload packets received over the SGi interface for the APN.
C64 rbnEpsuSgiApnUlV6PktsSent	1.3.6.1.4.1.2352.2.47.1.5.1.1.11	Counter64	read-only	Total number of uplink IPv6 user payload packets sent over the SGi interface for the APN.
C64 rbnEpsuSgiApnUlV6OctetsSent	1.3.6.1.4.1.2352.2.47.1.5.1.1.12	Counter64	read-only	Total number of octets in uplink IPv6 user payload packets sent over the SGi interface for the APN.
rbnEpsuMIBConformance	1.3.6.1.4.1.2352.2.47.2
rbnEpsuMIBGroups	1.3.6.1.4.1.2352.2.47.2.1
rbnEpsuS1uGtpGroup	1.3.6.1.4.1.2352.2.47.2.1.1			This object group contains counters for GTP on the S1-U interface
rbnEpsuSgwGtpGroup	1.3.6.1.4.1.2352.2.47.2.1.2			This object group contains counters for GTP on the S5/S8 SGW inteface
rbnEpsuPgwGtpGroup	1.3.6.1.4.1.2352.2.47.2.1.3			This object group contains counters for GTP on the S5/S8 PGW inteface
rbnEpsuSgiGroup	1.3.6.1.4.1.2352.2.47.2.1.4			This object group contains counters for SGi inteface.
rbnEspuSgiApnGroup	1.3.6.1.4.1.2352.2.47.2.1.5			This object group contains counters for user payload packets per APN received on the SGi interface
rbnEpsuMIBCompliances	1.3.6.1.4.1.2352.2.47.2.2
rbnEpsuMIBCompliance	1.3.6.1.4.1.2352.2.47.2.2.1			The compliance statement for SNMP entities which support EPSU statistics

RFC description

Evolved Packet System user plane statistics for Redback Networks, monitoring GTP tunnel traffic on S1-U interface.

Start monitoring Ericsson SmartEdge / Redback EPC gateway, mobile user-plane function (SGW/PGW-type role) 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-EPSU-MIB