This MIB module manages the features and configuration for PDN Gateway(PGW) and Serving Gateway(SGW) in Evolved Packet Core(EPC) architecture.
The PGW is the permanent IP point-of-attachment for access via the E-UTRAN. The PGW performs IP policy and charging enforcement on packet flows to and from mobile devices.
The SGW is a local mobility anchor for E-UTRAN mobility, switching packets between the S5 interface and the GTP based S1-U interface for mobiles in connected mode.
+------------------------------------------------+
| |
| |
| +=======+__________ |
| | UTRAN | |S12 |
| | +======+ | |
| +======| | | |
| +======| SGSN |___ | |
| | +======+ || |
| | GERAN | | S4|| |
| +=======+ |(GTP-C|| |
| S3| VO,V1|| |
| | GTPU|| |
| |VO,V1)|| |
| +======+ || |
| ____| MME |__ || |
| | +======+ ||| |
| S1-MME| S11 ||| |
| | GTP-C ||| |
| | (V0,V1,V2) ||| |
|+====+ +========+ +======+ +======+ | +===+
|| UE |-|E-Utran | | SGW | | PGW |-SGi-|PDN|
|| | |(EnodeB)| | | | | | | |
|+====+ +========+ +======+ +======+ | +===+
| | | | GTP-C | |
| | | |(vo,v1,v2)| |
| | | |GTP-C | |
| | | | (vo,v1) | |
| | GTP v2-u | | | |
| ------------ ----------- |
| (S1-U) S5 |
| |
+------------------------------------------------+
This architecture supports the non-roaming and roaming architectures using GTP based protocol on the PGW and SGW with a number of functions. It support high number of subscribers with their associated control messages and data traffic. Each of this association forms an entry in PGW and SGW and is commonly know as bearers.
The various features used by this architecture and their attributes are captured in this MIB:
1. Overload protection, handles congestion control, SGW and PGW represent congestion as a DFP metric considering the current CPU, memory usage and number of bearers open. On reaching the low congestion threshold, based on the ARP, high priority calls are accepted and those with a lower priority are rejected. Once the high threshold is reached all new calls are rejected.
2. Buffering agent, the SGW buffers the data packets in the downlink direction till the downlink path/peer information is ready. It buffers all packets coming from any gateway based on the default/configured values of the buffer size, discard period and number of packets. Packets will be buffered on a per bearer basis and retrieved in the order it was buffered using the handle given by the buffering agent initially. If the buffer is full then no more bearers will be accepted.
Acronyms and terms:
3GPP 3rd Generation Partnership Project
DFP Dynamic Feedback Protocol
EDGE Enhanced Data rates for GSM Evolution
EPC Evolved Packet Core
E-UTRAN Evolved UTRAN
GERAN GSM EDGE Radio Access Network
GPRS General Packet Radio Service
GSM Global System for Mobile communications
GTP GPRS Tunneling Protocol
PDN Public Data Network
PGW PDN Gateway
SAE System Architecture Evolution
SGW Serving Gateway
SP GW An integrated SGW and PGW Gateway
UE User Equipment
UMTS Universal Mobile Telecommunications System
UTRAN UMTS Radio Access Network
REFERENCE
[1] 3GPP: Evolved GPRS Tunneling Protocol for Control Plane (GTPv2-C). 3GPP TS 29.274 V1.3.1.
[2] 3GPP: GPRS enhancements for E-UTRAN access. 3GPP TS 23.401 V8.3.0.
[3] 3GPP: Circuit Switched fallback in Evolved Packet System(EPS). 3GPP TS 23.272.
This object represents the total number of incoming calls dropped at the gateway.
This counter is incremented when the gateway receives an incoming call request at high congestion level, and the request is dropped.
cegCongestionLowThresholdReached
1.3.6.1.4.1.9.9.731.1.1.1.2
Counter32
This object represents the number of times low congestion occurred on the gateway.
The value is equal to the number of times the gateway exceeded the congestion threshold cegCongestionLowThreshold.
cegCongestionHighThresholdReached
1.3.6.1.4.1.9.9.731.1.1.1.3
Counter32
This object represents the number of times high congestion occurred on the gateway.
The value is equal to the number of times the gateway exceeded the congestion threshold cegCongestionHighThreshold.
cegBuffersCreated
1.3.6.1.4.1.9.9.731.1.1.2.1
Counter32 · buffer
This object represents the total number of buffers allocated by buffering agent.
cegBuffersDeleted
1.3.6.1.4.1.9.9.731.1.1.2.2
Counter32 · buffer
This object represents the total number of buffers deallocated by buffering agent.
cegBuffersTimedOut
1.3.6.1.4.1.9.9.731.1.1.2.3
Counter32
This object represents the total number of buffers that got timed out, at buffering agent.
A buffer is timed out when the discard timer cegBufferDiscardDataTime expires.
cegBufferPacketsEnqueued
1.3.6.1.4.1.9.9.731.1.1.2.4
Counter32 · packet
This object represents the total number of packets enqueued to the buffering agent.
cegBufferPacketsDequeued
1.3.6.1.4.1.9.9.731.1.1.2.5
Counter32 · packet
This object represents the total number of packets dequeued from the buffering agent.
cegBufferBytesEnqueued
1.3.6.1.4.1.9.9.731.1.1.2.6
Counter32 · Bytes
This object represents the total bytes of data enqueued to the buffering agent.
cegBufferBytesDequeued
1.3.6.1.4.1.9.9.731.1.1.2.7
Counter32 · Bytes
This object represents the total bytes of data dequeued from the buffering agent.
cegBufferRejMemUnavailable
1.3.6.1.4.1.9.9.731.1.1.2.8
Counter32
This object represents the total number of times, buffer allocation is rejected by gateway due to, requested memory is greater than cegTotalBufferAvailable.
cegBufferRejLowMem
1.3.6.1.4.1.9.9.731.1.1.2.9
Counter32
This object represents the total number of times, buffer allocation is rejected due to, low memory availability in the gateway.
cegPacketDropDueToMaxPacketLimit
1.3.6.1.4.1.9.9.731.1.1.2.10
Counter32
This object represents the number of packet drops due to bearer maximum packet limit.
cegPacketDropDueToMaxBufferLimit
1.3.6.1.4.1.9.9.731.1.1.2.11
Counter32
This object represents the number of packet drops due to bearer maximum buffer limit.
cegCongestionLowThreshold
1.3.6.1.4.1.9.9.731.1.2.1.1
Unsigned32 (0..100) · percent
This object specifies the low threshold for congestion. Congestion DFP metric considers the current CPU memory usage and number of bearers open. On reaching the low congestion threshold, based on the ARP, high priority calls are accepted and those with a lower priority are rejected.
cegCongestionHighThreshold
1.3.6.1.4.1.9.9.731.1.2.1.2
Unsigned32 (0..100) · percent
This object specifies the high threshold for congestion. Congestion DFP metric considers the current CPU memory usage and number of bearers open. Once the high threshold is reached all new calls are rejected.
cegBufferingAgentEnabled
1.3.6.1.4.1.9.9.731.1.2.2.1
TruthValue1 = true2 = falseRepresents a boolean value. · Integer32
This object specifies the state of the buffering agent.
'true' - indicates that the buffering agent is enabled. 'false' - indicates that the buffering agent is disabled.
cegBufferMaxSize
1.3.6.1.4.1.9.9.731.1.2.2.2
Unsigned32 (400..12000) · Bytes
This object represents the maximum size of a buffer that can be allocated for a bearer.
This object is directly dependent on object cegBufferingAgentEnabled and is applicable only when buffering agent is enabled, that is when cegBufferingAgentEnabled is 'true'.
cegBufferDiscardDataTime
1.3.6.1.4.1.9.9.731.1.2.2.3
Unsigned32 (1..300) · second
This object specifies the duration for which the buffering agent waits before discarding a buffer.
The discard timer begins when a packet is enqueued in the allocated buffer for a bearer. Whenever a packet is enqueued for a bearer, the discard timer is reset. If the timer expires, then the buffer is freed.
cegBufferMaxPacketsPerBuffer
1.3.6.1.4.1.9.9.731.1.2.2.4
Unsigned32 (1..15) · packet
This object specifies the maximum number of packets allowed per buffer in buffering agent.
Any new incoming packet after this value has reached its maximum will be dropped.
cegVersion
1.3.6.1.4.1.9.9.731.1.3.1
SnmpAdminStringAn octet string containing administrative information, preferably in human-readable form.
To facilitate internationalization, this information is represented using the ISO/IEC IS 10646-1 character set, encoded as an octet string using the UTF-8 transformation format described in [RFC2279].
Since additional code points are added by amendments to the 10646 standard from time to time, implementations must be prepared to encounter any code point from 0x00000000 to 0x7fffffff. Byte sequences that do not correspond to the valid UTF-8 encoding of a code point or are outside this range are prohibited.
The use of control codes should be avoided.
When it is necessary to represent a newline, the control code sequence CR LF should be used.
The use of leading or trailing white space should be avoided.
For code points not directly supported by user interface hardware or software, an alternative means of entry and display, such as hexadecimal, may be provided.
For information encoded in 7-bit US-ASCII, the UTF-8 encoding is identical to the US-ASCII encoding.
UTF-8 may require multiple bytes to represent a single character / code point; thus the length of this object in octets may be different from the number of characters encoded. Similarly, size constraints refer to the number of encoded octets, not the number of characters represented by an encoding.
Note that when this TC is used for an object that is used or envisioned to be used as an index, then a SIZE restriction MUST be specified so that the number of sub-identifiers for any object instance does not exceed the limit of 128, as defined by [RFC3416].
Note that the size of an SnmpAdminString object is measured in octets, not characters. SIZE (1..100) · OCTET STRING · hint 255t
This object represents the current version of the PGW or SGW software running on the gateway.
Display format: <software> : <version>:<release>.
cegActivatedIpv4Bearers
1.3.6.1.4.1.9.9.731.1.3.2
Gauge32 · bearer
This object represents the total activated IPv4 GTPv2 bearers.
cegActivatedIpv6Bearers
1.3.6.1.4.1.9.9.731.1.3.3
Gauge32 · bearer
This object represents the total activated IPv6 GTPv2 bearers.
cegTotalUsers
1.3.6.1.4.1.9.9.731.1.3.4
Gauge32
This object represents the total number of users connected to the gateway.
cegTotalIdleUsers
1.3.6.1.4.1.9.9.731.1.3.5
Gauge32 · Users
This object represents the total number of users currently in ISR state in the gateway.
cegTotalSuspendedUsers
1.3.6.1.4.1.9.9.731.1.3.6
Gauge32
This object represents the total number of users suspended by the gateway.
A user would be suspended when E-UTRAN coverage is overlapped by either GERAN or UTRAN coverage leading to a Circuit Switch fallback from E-UTRAN. The Circuit Switch fallback enables reuse of voice and other Circuit Switch services by reuse of the Circuit Switch infrastructure.
cegActivatedIpv4v6Sessions
1.3.6.1.4.1.9.9.731.1.3.7
Gauge32 · sessions
This object represents the total number of activated IPv4v6 sessions.
cegCongestionDfpWeight
1.3.6.1.4.1.9.9.731.1.3.8.1
Unsigned32 (0..65535)
This object represents the DFP weight value, which is the measure of the load on CPU in the gateway.
cegCongestionStatus
1.3.6.1.4.1.9.9.731.1.3.8.2
INTEGER1 = normal2 = low3 = high · Integer32
This object represents the gateway congestion status.
normal - The gateway is not in a congestion state. At this state, the value of cegCongestionDfpWeight is less than value of cegCongestionLowThreshold. low - The gateway is running in low congestion state. At this state, the value of cegCongestionDfpWeight is more than value of cegCongestionLowThreshold but less than value of cegCongestionHighThreshold. high - The gateway is running in high congestion state. At this state, the value of cegCongestionDfpWeight is more than value of cegCongestionHighThreshold.
cegCongestionLowLastOccurTime
1.3.6.1.4.1.9.9.731.1.3.8.3
TimeStampThe value of the sysUpTime object at which a specific occurrence happened. The specific occurrence must be
defined in the description of any object defined using this type.
If sysUpTime is reset to zero as a result of a re- initialization of the network management (sub)system, then the values of all TimeStamp objects are also reset. However, after approximately 497 days without a re- initialization, the sysUpTime object will reach 2^^32-1 and then increment around to zero; in this case, existing values of TimeStamp objects do not change. This can lead to ambiguities in the value of TimeStamp objects. · TimeTicks
This object represents the timestamp at which low congestion last occurred on the gateway.
cegCongestionLowLastDuration
1.3.6.1.4.1.9.9.731.1.3.8.4
TimeIntervalA period of time, measured in units of 0.01 seconds. (0..2147483647) · Integer32
This object represents the duration of last low congestion.
cegCongestionHighLastOccurTime
1.3.6.1.4.1.9.9.731.1.3.8.5
TimeStampThe value of the sysUpTime object at which a specific occurrence happened. The specific occurrence must be
defined in the description of any object defined using this type.
If sysUpTime is reset to zero as a result of a re- initialization of the network management (sub)system, then the values of all TimeStamp objects are also reset. However, after approximately 497 days without a re- initialization, the sysUpTime object will reach 2^^32-1 and then increment around to zero; in this case, existing values of TimeStamp objects do not change. This can lead to ambiguities in the value of TimeStamp objects. · TimeTicks
This object represents the timestamp at which high congestion last occurred on the gateway.
cegCongestionHighLastDuration
1.3.6.1.4.1.9.9.731.1.3.8.6
TimeIntervalA period of time, measured in units of 0.01 seconds. (0..2147483647) · Integer32
This object represents the duration of the last high congestion.
cegTotalInUseBuffers
1.3.6.1.4.1.9.9.731.1.3.9.1
Gauge32 · buffer
This object represents the total number of buffers currently allocated for the bearers, by buffering agents.
cegTotalBufferedPackets
1.3.6.1.4.1.9.9.731.1.3.9.2
Gauge32 · packet
This object represents the total number of packets buffered at present in the buffers of buffering agents.
cegTotalBufferedBytes
1.3.6.1.4.1.9.9.731.1.3.9.3
Gauge32 · Bytes
This object represents the total number of bytes buffered at present in the buffers of buffering agents.
cegTotalBufferAvailable
1.3.6.1.4.1.9.9.731.1.3.9.4
Gauge32 · Bytes
This object represents the total unallocated bytes at buffering agents.
cegActivatedIpv4v6Bearers
1.3.6.1.4.1.9.9.731.1.3.10
Gauge32 · bearers
This object represents the total number of activated IPv4v6 bearers.
cegActivatedGtpv2SgwSessions
1.3.6.1.4.1.9.9.731.1.3.11
Gauge32 · sessions
This object represents the total number of activated GTPV2 sessions in SGW mode.
cegActivatedGtpv2PgwSessions
1.3.6.1.4.1.9.9.731.1.3.12
Gauge32 · sessions
This object represents the total number of activated GTPV2 sessions in PGW mode.
cegActivatedGtpv2SPgwSessions
1.3.6.1.4.1.9.9.731.1.3.13
Gauge32 · sessions
This object represents the total number of activated GTPV2 sessions in SP GW mode.
cegActivatedBearers
1.3.6.1.4.1.9.9.731.1.3.14
Gauge32 · Bearers
This object represents the total number of default and dedicated bearers currently active in the Gateway.
cegActivatedDedicatedBearers
1.3.6.1.4.1.9.9.731.1.3.15
Gauge32 · Bearers
This object represents the total number of dedicated bearers currently active in the Gateway.
cegActivatedIpv4DedicatedBearers
1.3.6.1.4.1.9.9.731.1.3.16
Gauge32 · Bearers
This object represents the total number of IPv4 dedicated bearers currently active in the Gateway.
cegActivatedIpv6DedicatedBearers
1.3.6.1.4.1.9.9.731.1.3.17
Gauge32 · Bearers
This object represents the total number of IPv6 dedicated bearers currently active in the Gateway.
cegTotalIdleSessions
1.3.6.1.4.1.9.9.731.1.3.18
Gauge32 · Sessions
This object represents the total number of sessions currently in Idle state in the gateway.
cegCongestionHighNotifEnable
1.3.6.1.4.1.9.9.731.1.4.1
TruthValue1 = true2 = falseRepresents a boolean value. · Integer32
The object controls the generation of cegCongestionHighThresholdNotif as follows: 'true(1)' - the generation of cegCongestionHighThresholdNotif notifications is enabled. 'false(2)' - the generation of cegCongestionHighThresholdNotif notifications is disabled.
cegCongestionLowNotifEnable
1.3.6.1.4.1.9.9.731.1.4.2
TruthValue1 = true2 = falseRepresents a boolean value. · Integer32
The object controls the generation of cegCongestionLowThresholdNotif as follows: 'true(1)' - the generation of cegCongestionLowThresholdNotif notifications is enabled. 'false(2)' - the generation of cegCongestionLowThresholdNotif notifications is disabled.
cegCongestionClearNotifEnable
1.3.6.1.4.1.9.9.731.1.4.3
TruthValue1 = true2 = falseRepresents a boolean value. · Integer32
The object controls the generation of cegCongestionClearedNotif as follows: 'true(1)' - the generation of cegCongestionClearedNotif notifications is enabled. 'false(2)' - the generation of cegCongestionClearedNotif notifications is disabled.
Trap details
cegCongestionHighThresholdNotif
1.3.6.1.4.1.9.9.731.0.1
This notification will be sent when the gateway congestion level goes above cegCongestionHighThreshold value.
This gives an indication that the gateway is running at high congestion and at this state it would reject all new calls.
cegVersion
1.3.6.1.4.1.9.9.731.1.3.1
SnmpAdminStringAn octet string containing administrative information, preferably in human-readable form.
To facilitate internationalization, this information is represented using the ISO/IEC IS 10646-1 character set, encoded as an octet string using the UTF-8 transformation format described in [RFC2279].
Since additional code points are added by amendments to the 10646 standard from time to time, implementations must be prepared to encounter any code point from 0x00000000 to 0x7fffffff. Byte sequences that do not correspond to the valid UTF-8 encoding of a code point or are outside this range are prohibited.
The use of control codes should be avoided.
When it is necessary to represent a newline, the control code sequence CR LF should be used.
The use of leading or trailing white space should be avoided.
For code points not directly supported by user interface hardware or software, an alternative means of entry and display, such as hexadecimal, may be provided.
For information encoded in 7-bit US-ASCII, the UTF-8 encoding is identical to the US-ASCII encoding.
UTF-8 may require multiple bytes to represent a single character / code point; thus the length of this object in octets may be different from the number of characters encoded. Similarly, size constraints refer to the number of encoded octets, not the number of characters represented by an encoding.
Note that when this TC is used for an object that is used or envisioned to be used as an index, then a SIZE restriction MUST be specified so that the number of sub-identifiers for any object instance does not exceed the limit of 128, as defined by [RFC3416].
Note that the size of an SnmpAdminString object is measured in octets, not characters. SIZE (1..100) · OCTET STRING · hint 255t
This object represents the current version of the PGW or SGW software running on the gateway.
Display format: <software> : <version>:<release>.
cegCongestionDfpWeight
1.3.6.1.4.1.9.9.731.1.3.8.1
Unsigned32 (0..65535)
This object represents the DFP weight value, which is the measure of the load on CPU in the gateway.
cegCongestionStatus
1.3.6.1.4.1.9.9.731.1.3.8.2
INTEGER1 = normal2 = low3 = high · Integer32
This object represents the gateway congestion status.
normal - The gateway is not in a congestion state. At this state, the value of cegCongestionDfpWeight is less than value of cegCongestionLowThreshold. low - The gateway is running in low congestion state. At this state, the value of cegCongestionDfpWeight is more than value of cegCongestionLowThreshold but less than value of cegCongestionHighThreshold. high - The gateway is running in high congestion state. At this state, the value of cegCongestionDfpWeight is more than value of cegCongestionHighThreshold.
cegCongestionHighThreshold
1.3.6.1.4.1.9.9.731.1.2.1.2
Unsigned32 (0..100) · percent
This object specifies the high threshold for congestion. Congestion DFP metric considers the current CPU memory usage and number of bearers open. Once the high threshold is reached all new calls are rejected.
cegCongestionLowThresholdNotif
1.3.6.1.4.1.9.9.731.0.2
This notification will be sent when the gateway congestion level goes above cegCongestionLowThreshold value.
This gives an indication that the gateway is running at low congestion at this state it can accept only the high priority calls and those with a lower priority would be rejected.
cegVersion
1.3.6.1.4.1.9.9.731.1.3.1
SnmpAdminStringAn octet string containing administrative information, preferably in human-readable form.
To facilitate internationalization, this information is represented using the ISO/IEC IS 10646-1 character set, encoded as an octet string using the UTF-8 transformation format described in [RFC2279].
Since additional code points are added by amendments to the 10646 standard from time to time, implementations must be prepared to encounter any code point from 0x00000000 to 0x7fffffff. Byte sequences that do not correspond to the valid UTF-8 encoding of a code point or are outside this range are prohibited.
The use of control codes should be avoided.
When it is necessary to represent a newline, the control code sequence CR LF should be used.
The use of leading or trailing white space should be avoided.
For code points not directly supported by user interface hardware or software, an alternative means of entry and display, such as hexadecimal, may be provided.
For information encoded in 7-bit US-ASCII, the UTF-8 encoding is identical to the US-ASCII encoding.
UTF-8 may require multiple bytes to represent a single character / code point; thus the length of this object in octets may be different from the number of characters encoded. Similarly, size constraints refer to the number of encoded octets, not the number of characters represented by an encoding.
Note that when this TC is used for an object that is used or envisioned to be used as an index, then a SIZE restriction MUST be specified so that the number of sub-identifiers for any object instance does not exceed the limit of 128, as defined by [RFC3416].
Note that the size of an SnmpAdminString object is measured in octets, not characters. SIZE (1..100) · OCTET STRING · hint 255t
This object represents the current version of the PGW or SGW software running on the gateway.
Display format: <software> : <version>:<release>.
cegCongestionDfpWeight
1.3.6.1.4.1.9.9.731.1.3.8.1
Unsigned32 (0..65535)
This object represents the DFP weight value, which is the measure of the load on CPU in the gateway.
cegCongestionStatus
1.3.6.1.4.1.9.9.731.1.3.8.2
INTEGER1 = normal2 = low3 = high · Integer32
This object represents the gateway congestion status.
normal - The gateway is not in a congestion state. At this state, the value of cegCongestionDfpWeight is less than value of cegCongestionLowThreshold. low - The gateway is running in low congestion state. At this state, the value of cegCongestionDfpWeight is more than value of cegCongestionLowThreshold but less than value of cegCongestionHighThreshold. high - The gateway is running in high congestion state. At this state, the value of cegCongestionDfpWeight is more than value of cegCongestionHighThreshold.
cegCongestionLowThreshold
1.3.6.1.4.1.9.9.731.1.2.1.1
Unsigned32 (0..100) · percent
This object specifies the low threshold for congestion. Congestion DFP metric considers the current CPU memory usage and number of bearers open. On reaching the low congestion threshold, based on the ARP, high priority calls are accepted and those with a lower priority are rejected.
cegCongestionHighThreshold
1.3.6.1.4.1.9.9.731.1.2.1.2
Unsigned32 (0..100) · percent
This object specifies the high threshold for congestion. Congestion DFP metric considers the current CPU memory usage and number of bearers open. Once the high threshold is reached all new calls are rejected.
cegCongestionClearedNotif
1.3.6.1.4.1.9.9.731.0.3
This notification will be sent when the gateway congestion level goes below cegCongestionLowThreshold value.
This gives an indication that the gateway has recovered from congestion and it can accept all calls.
cegVersion
1.3.6.1.4.1.9.9.731.1.3.1
SnmpAdminStringAn octet string containing administrative information, preferably in human-readable form.
To facilitate internationalization, this information is represented using the ISO/IEC IS 10646-1 character set, encoded as an octet string using the UTF-8 transformation format described in [RFC2279].
Since additional code points are added by amendments to the 10646 standard from time to time, implementations must be prepared to encounter any code point from 0x00000000 to 0x7fffffff. Byte sequences that do not correspond to the valid UTF-8 encoding of a code point or are outside this range are prohibited.
The use of control codes should be avoided.
When it is necessary to represent a newline, the control code sequence CR LF should be used.
The use of leading or trailing white space should be avoided.
For code points not directly supported by user interface hardware or software, an alternative means of entry and display, such as hexadecimal, may be provided.
For information encoded in 7-bit US-ASCII, the UTF-8 encoding is identical to the US-ASCII encoding.
UTF-8 may require multiple bytes to represent a single character / code point; thus the length of this object in octets may be different from the number of characters encoded. Similarly, size constraints refer to the number of encoded octets, not the number of characters represented by an encoding.
Note that when this TC is used for an object that is used or envisioned to be used as an index, then a SIZE restriction MUST be specified so that the number of sub-identifiers for any object instance does not exceed the limit of 128, as defined by [RFC3416].
Note that the size of an SnmpAdminString object is measured in octets, not characters. SIZE (1..100) · OCTET STRING · hint 255t
This object represents the current version of the PGW or SGW software running on the gateway.
Display format: <software> : <version>:<release>.
cegCongestionDfpWeight
1.3.6.1.4.1.9.9.731.1.3.8.1
Unsigned32 (0..65535)
This object represents the DFP weight value, which is the measure of the load on CPU in the gateway.
cegCongestionStatus
1.3.6.1.4.1.9.9.731.1.3.8.2
INTEGER1 = normal2 = low3 = high · Integer32
This object represents the gateway congestion status.
normal - The gateway is not in a congestion state. At this state, the value of cegCongestionDfpWeight is less than value of cegCongestionLowThreshold. low - The gateway is running in low congestion state. At this state, the value of cegCongestionDfpWeight is more than value of cegCongestionLowThreshold but less than value of cegCongestionHighThreshold. high - The gateway is running in high congestion state. At this state, the value of cegCongestionDfpWeight is more than value of cegCongestionHighThreshold.
cegCongestionLowThreshold
1.3.6.1.4.1.9.9.731.1.2.1.1
Unsigned32 (0..100) · percent
This object specifies the low threshold for congestion. Congestion DFP metric considers the current CPU memory usage and number of bearers open. On reaching the low congestion threshold, based on the ARP, high priority calls are accepted and those with a lower priority are rejected.