| VariableName | (ALN) | (ALN) | (ALN) | (ALN) | (ALN) | (ALN) | ShortDescr | RenameFrom | RW | ProcType | Table | Scope | PossibleValues | Description |
| Priority | Condition/ | Min | Max | Kernel Support | Nature | |||||||||
| Output | ||||||||||||||
| CountRTT | Med | Output | 0 | 2^32-1 | Supported | Count of samples in SumRTT | - | read-only | ZeroBasedCounter32 | 1perf | standard | - | The number of round trip time samples included in tcpEStatsPerfSumRTT. | |
| ElapsedMicroSecs | Med | Output | 0 | 2^32-1 | Not supported | Discrete | Elapsed micro Seconds | CurrTime | read-only | ZeroBasedCounter32 | 1perf | standard | - | The micro-second part of time elapsed between tcpEStatsPerfStartTimeStampto the most recent protocol event (segment sent or received). This may be updated in what ever time granularity is the system supports. |
| ElapsedSecs | Med | Output | 0 | 2^32-1 | Not supported | Discrete | Elapsed seconds | CurrTime | read-only | ZeroBasedCounter32 | 1perf | standard | - | The seconds part of the time elapsed between tcpEStatsPerfStartTimeStampand the most recent protocol event (segment sent or received). |
| SumRTT | Med | Output | 0 | 2^32-1 | Supported | Discrete | Cumulative RTT | - | read-only | ZeroBasedCounter32 | 1perf | standard | - | The sum of all sampled round trip times, in milliseconds. |
| SampleRTT | Med | Output | 1 | 2^32-1 | Supported | Discrete | Most recent RTT sample | SampledRTT | read-only | Gauge32 | 1perf | standard | - | The most recent raw round trip time measurement, inmilliseconds, used in calculation of the RTO. |
| HCDataOctetsIn | Med | Output | 0 | 2^64-1 | Not supported | Discrete | Data Octets In | - | read-only | ZeroBasedCounter64 | 1perf | standard | - | The number of octets contained in received data segments,including retransmitted data, on systems that can receive more than 10 million bits per second. Note that this does not include TCP headers. |
| HCDataOctetsOut | Med | Output | 0 | 2^64-1 | Not supported | Discrete | Data Octets Out | - | read-only | ZeroBasedCounter64 | 1perf | standard | - | The number of octets of data contained in transmitted segments,including retransmitted data, on systems that can transmit more than 10 million bits per second. Note that this does not include TCP headers. |
| HCSumRTT | Med | Output | 0 | 2^64-1 | Not supported | Discrete | Cumulative RTT | - | read-only | ZeroBasedCounter64 | 1perf | standard | - | The sum of all sampled round trip times, in milliseconds, onall systems that implement multiple concurrent RTT measurements. |
| HCThruOctetsAcked | Med | Output | 0 | 2^64-1 | Not supported | Discrete | Total throughput octets sent | ThruOctetsSent | read-only | ZeroBasedCounter64 | 1perf | standard | - | The number of octets for which cumulative acknowledgmentshave been received, on systems that can receive more than 10 million bits per second. Note that this will be the sum of changes in tcpEStatsPerfSndUna. |
| HCThruOctetsReceived | Med | Output | 0 | 2^64-1 | Not supported | Discrete | Total throughput octets received | - | read-only | ZeroBasedCounter64 | 1perf | standard | - | The number of octets for which cumulative acknowledgmentshave been sent, on systems that can transmit more than 10 million bits per second. Note that this will be the sum of changes in tcpEStatsPerfRcvNxt. |
| PostCongCountRTT | Med | Output | 0 | 2^32-1 | Supported | Discrete | Count of the RTT as measured just after congestion | - | read-only | ZeroBasedCounter32 | 2path | standard | - | The number of RTT samples included intcpEStatsPathPostCongSumRTT and tcpEStatsPathPostCongHCSumRTT, such that the ratio is average RTT just after congestion. |
| PostCongSumRTT | Med | Output | 0 | 2^32-1 | Supported | Discrete | Sum of the RTT as measured just after congestion. | - | read-only | ZeroBasedCounter32 | 2path | standard | - | Sum of the first RTT sample following a received congestionsignal. |
| PreCongSumCwnd | Med | Output | 0 | 2^32-1 | Supported | Discrete | Sum Congestion Window at Congestion | SumCwndAtCong | read-only | ZeroBasedCounter32 | 2path | standard | - | The sum of the values of the congestion window, in octets,captured each time a congestion signal is received. This MUST be updated each time tcpEStatsPerfCongSignals is incremented, such that the ratio is the average window at congestion. |
| PreCongSumRTT | Med | Output | 0 | 2^32-1 | Supported | Discrete | Sum of the RTT as measured just before congestion. | - | read-only | ZeroBasedCounter32 | 2path | standard | - | Sum of the last sample of the RTT (tcpEStatsPerfSampleRTT) prior to receivedcongestion signals. This MUST be updated each time tcpEStatsPerfCongSignals is incremented, such that the ratio is the average RTT just prior to congestion. |