ltmTcpProfileCongestionCtrl
F5-BIGIP-LOCAL-MIB ·
.1.3.6.1.4.1.3375.2.2.6.10.1.2.1.34
Object
column
Enumeration
The TCP congestion control mode, guiding cwnd growth.
reno - RENO congestion control mode;
newreno - new RENO congestion control mode;
scalable - scalable congestion control mode. It will do MIMD
on cwnd besides NewReno retransmission;
highspeed - high-speed congestion control mode, per RFC3649;
none - no congestion control;
vegas - vegas congestion control, delay-based;
illinois - illinois congestion control, hybrid loss and delay;
woodside - woodside congestion control, hybrid loss and delay;
chd - chd congestion control, queue-delay based;
cdg - cdg congestion control, RTT based;
cubic - cubic congestion control, optimized for high latency,
high bandwidth connections;
westwood - westwood+ congestion control, bandwidth estimation;
bbr - bbr congestion control, bandwidth and RTT based.
Context
- MIB
- F5-BIGIP-LOCAL-MIB
- OID
.1.3.6.1.4.1.3375.2.2.6.10.1.2.1.34- Type
- column
- Access
- readonly
- Status
- current
- Parent
- ltmTcpProfileEntry
- Table
- ltmTcpProfileTable
- Siblings
- 72
Syntax
Enumeration
Values & Constraints
Enumerated Values
0 | reno |
1 | newreno |
2 | scalable |
3 | highspeed |
4 | none |
5 | vegas |
6 | illinois |
7 | woodside |
8 | chd |
9 | cdg |
10 | cubic |
11 | westwood |
12 | bbr |
Related Objects
Sibling Objects
| Object | Type | Syntax | OID |
|---|---|---|---|
| ltmTcpProfileName The name of a TCP profile. | column | F5-BIGIP-COMMON-MIBLongDisplayString | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.1 |
| ltmTcpProfileProxyBufferHigh The proxy buffer level at which the receive window is closed. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.10 |
| ltmTcpProfileIdleTimeout The number of seconds without traffic before a connection is
eligible for deletion. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.11 |
| ltmTcpProfileTimeWaitTimeout The milliseconds in TIME-WAIT before entering CLOSED state. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.12 |
| ltmTcpProfileFinWaitTimeout The number of seconds to remain in FIN-WAIT-1 or CLOSING state
before giving up. Zero is forever (or until maxrtx of FIN). | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.13 |
| ltmTcpProfileCloseWaitTimeout The number of seconds to remain in LAST-ACK state before
giving up. Zero is forever (or until maxrtx of FIN). | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.14 |
| ltmTcpProfileSndbuf Send buffer size in bytes. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.15 |
| ltmTcpProfileRcvwnd Receive window size in bytes. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.16 |
| ltmTcpProfileKeepAliveInterval Keep alive probe interval in milliseconds. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.17 |
| ltmTcpProfileSynMaxrtx The maximum number of retransmissions of SYN segments. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.18 |
| ltmTcpProfileMaxrtx The maximum number of retransmissions of data segments. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.19 |
| ltmTcpProfileConfigSource The state that specifies whether this is a base/pre-configured profile
or user defined profile. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.2 |
| ltmTcpProfileIpTosToClient The IP type of service set in packets sent to client. Default:None. | column | Integer32 | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.20 |
| ltmTcpProfileLinkQosToClient The link quality of service set in packets sent to client. Default:None. | column | Integer32 | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.21 |
| ltmTcpProfileDeferredAccept The state that if true, defers allocation of connection chain context
until payload from client has been seen. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.22 |
| ltmTcpProfileSelectiveAcks The state that if true, enable RFC2018 Selective Acknowledgements. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.23 |
| ltmTcpProfileEcn The state that if true, enable RFC3168 Extended Congestion Notification (ECN). | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.24 |
| ltmTcpProfileLimitedTransmit The state that if true, enables support for RFC3042 Limited Transmit Recovery | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.25 |
| ltmTcpProfileHighPerfTcpExt deprecated Deprecated! Replaced by ltmTcpProfileTimestamps.
The state that if true, enables support for RFC1323 timestamps
and window scaling (high bandwidth TCP extensions). | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.26 |
| ltmTcpProfileSlowStart The state if true, enable TCP slow-start by default. We use RFC3390 to
slow-start rather than traditional congestion avoidance mechanisms. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.27 |
| ltmTcpProfileBandwidthDelay deprecated Deprecated! The state if true, attempt to calculate the optimal bandwidth
to use to the peer based on throughput and round-trip time,
and don't exceed it. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.28 |
| ltmTcpProfileNagle The state if true, delay sending data < MSS in size unless
all prior data has been ACKed. This leads to less in-flight small-data,
and less chance for drops, but can harm interact… | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.29 |
| ltmTcpProfileDefaultName The name of the profile from which the specified profile derives
its attribute default values. | column | F5-BIGIP-COMMON-MIBLongDisplayString | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.3 |
| ltmTcpProfileAckOnPush The state if true, data-bearing in-order TCP segments will elicit
immediate ACKs from us if they have the PUSH flag set, regardless of
the setting of the delayed-ack profile opt… | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.30 |
| ltmTcpProfileMd5Sig The state if true, use RFC2385 TCP-MD5 signatures to protect
TCP traffic against intermediate tampering. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.31 |
| ltmTcpProfileMd5SigPass deprecated Deprecated! No longer supported.
This is a plaintext passphrase which may be between 1 and 80
characters in length, and is used in a shared-secret scheme
to implement the spoof-… | column | F5-BIGIP-COMMON-MIBLongDisplayString | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.32 |
| ltmTcpProfileAbc The state that if it is true, count the number of bytes ACKed
rather than the number of returning ACKs from the peer when
in the linear congestion-window expansion phase of a TC… | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.33 |
| ltmTcpProfileDsack The state that if true, enable support for RFC2883 D-SACK (Duplicate Selective Acknowledgment). | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.35 |
| ltmTcpProfileCmetricsCache The state that if true, use the routing table metrics cache to
retrieve the last-known tcp congestion parameters.
(Congestion window, round-trip-times, and slow-start threshold.) | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.36 |
| ltmTcpProfileVerifiedAccept The state that if true, the device must not respond to the clients
SYN with a SYN-ACK until it receives a SYN-ACK from
the server, indicating that the port is open. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.37 |
| ltmTcpProfilePktLossIgnoreRate Specifies the threshold of packets lost per million at which the system should perform congestion control.
Measured in packets per million. Valid values are from 0 to 1000000. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.38 |
| ltmTcpProfilePktLossIgnoreBurst Specifies the likelihood of performing congestion control when multiple packets in a row are lost even
if the loss threshold has not been exceeded. Valid values are from 0 to 32.… | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.39 |
| ltmTcpProfileResetOnTimeout The feature of reset for idle timeout.
If true and a TCP connection exceeds its idle_timeout, send a reset
in addition to deleting the connection. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.4 |
| ltmTcpProfileZeroWindowTimeout Specifies the timeout in milliseconds for terminating a connection with an effective zero length TCP
transmit window. The timeout starts when the peer advertises a zero length TCP… | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.40 |
| ltmTcpProfileInitCwnd Initial congestion window size for connections to this destination. Actual window size is this value
multiplied by the MSS (Maximal Segment Size) for same connection. The default … | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.41 |
| ltmTcpProfileInitRwnd Initial receive window size for connections to this destination. The actual window size is this value
multiplied by the MSS (Maximal Segment Size) of the connection. The default v… | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.42 |
| ltmTcpProfileDelayWindowControl If enabled, uses an estimate of queuing delay as a measure of congestion to control, in addition to
the normal loss based control, the amount of data sent. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.43 |
| ltmTcpProfileSynRtoBase Initial RTO (Retransmission TimeOut) base multiplier for SYN retransmission, specified in milliseconds.
This value is modified by the exponential backoff table to select the inter… | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.44 |
| ltmTcpProfileTimestamps The state that if true, enables support for RFC1323 timestamps (high bandwidth TCP extension). | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.45 |
| ltmTcpProfileMinRto Specifies the minimum TCP retransmission timeout in milliseconds. The timeout starts when the sender sends
a packet containing data. The timer is canceled when all outstanding dat… | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.46 |
| ltmTcpProfileMptcp The state that, if enabled, all incoming flows handle by the MPTCP stack allowing for support of multipath
enabled connections. When passthrough, MPTCP flows are not terminated by… | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.47 |
| ltmTcpProfileRatePace The state that, when true, enables pacing of data transmission. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.48 |
| ltmTcpProfileMptcpCsum The state that, when true, enabled checksums support by this MPTCP enabled device. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.49 |
| ltmTcpProfileTimeWaitRecycle Recycle connection when SYN is received in TIME-WAIT state. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.5 |
| ltmTcpProfileMptcpCsumVerify The state that, when true, enables verifying incoming checksums, and checksum failure causes
connection abort. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.50 |
| ltmTcpProfileMptcpDebug The state that, when true, enables debug logging and statistics for MPTCP. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.51 |
| ltmTcpProfileMptcpFallback The MPTCP fallback control mode,
reboot - reboot control mode;
retransmit - retransmit control mode;
activeaccept - activeaccept control mode;
accept - accept control mode. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.52 |
| ltmTcpProfileMptcpJoinmax Specifies the maximum number of simultaneous join attempts on a given flow. Default value is 5. Maximum value is 20. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.53 |
| ltmTcpProfileMptcpNojoindssack The state that, when true, the no DSS option is sent on the JOIN ACK. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.54 |
| ltmTcpProfileMptcpRtomax Specifies the the number of RTOs before declaring subflow dead. Default value is 5. Maximum value is 12. Minimum value is 3. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.55 |
| ltmTcpProfileMptcpRxmitmin Specifies the minimum value (in milliseconds) of retransmission timer for these MPTCP flows. Default value is 1000. Maximum value is 5000. Minimum value is 200. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.56 |
| ltmTcpProfileMptcpSubflowmax Specifies the maximum number of MPTCP subflows for a single flow. Default value is 6. Maximum value is 10. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.57 |
| ltmTcpProfileMptcpMakeafterbreak The state that, when true, causes after break functionality allowing for Long-Lived MPTCP sessions. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.58 |
| ltmTcpProfileMptcpTimeout Specifies the timeout value to discard long-lived sessions that do not have an active flow. Default value is 3600 sec. Maximum value is 36000 sec. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.59 |
| ltmTcpProfileDelayedAcks If true, Enable delayed ACK to allow coalescing of multiple ACK responses. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.6 |
| ltmTcpProfileMptcpFastjoin The state that, when true, enables FAST join, allowing data to be sent on the MP_JOIN SYN, which can allow a server response to occur in parallel with the JOIN | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.60 |
| ltmTcpProfileEarlyRetransmit The state that if true, enables support for RFC5827 Early Retransmit | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.61 |
| ltmTcpProfileTailLossProbe The state that if true, enables support for Tail Loss Probe | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.62 |
| ltmTcpProfileCmetricsCacheTimeout Specifies the time, in seconds, for which entries in the congestion
metrics cache are valid. The default value is 0, which defers to
the sys db variable route.metrics.timeout. Val… | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.63 |
| ltmTcpProfileRatePaceMaxRate Specifies the maximum rate, in bytes per second, at which the rate
pacing feature may transmit data. The default value is 0, which
means no maximum rate is enforced. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.64 |
| ltmTcpProfileFastOpen The state that if true, enables support for Fast Open. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.65 |
| ltmTcpProfileFastOpenCookieExpiration Specifies the number of seconds a Fast Open Cookie provided by a BIG-IP is valid for incoming SYN packets from that client. The default value is 21600 (6 hours). The range is from… | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.66 |
| ltmTcpProfileFinWait2Timeout The number of seconds to remain in FIN-WAIT-2 state before giving up.
Zero is forever (or until maxrtx of FIN). | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.67 |
| ltmTcpProfileRexmtThresh Specifies the number of duplicate ACKs received (retransmit threshold) before starting fast recovery. Default value is 3. The range is from 3 to 255. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.68 |
| ltmTcpProfileAutoSendBuffer The state that if true, enables support for send buffer auto-tuning. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.69 |
| ltmTcpProfileProxyMss Whether or not to proxy maximum segment size.
If true, advertise the same mss to the server as was
negotiated with the client. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.7 |
| ltmTcpProfileAutoReceiveWindow The state that if true, enables support for receive window auto-tuning. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.70 |
| ltmTcpProfileAutoProxyBuffer The state that if true, enables support for proxy buffer auto-tuning. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.71 |
| ltmTcpProfileEnhancedLossRecovery The state that if true, enables support for Enhanced Loss Recovery | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.72 |
| ltmTcpProfilePushFlag The TCP PUSH flag control mode, guiding sending PUSH segments.
default - Default behavior mode;
none - Do not send any PUSH flags mode;
one - Send a PUSH flag with FIN segments mo… | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.73 |
| ltmTcpProfileProxyOptions Whether or not to proxy an option.
If true, advertise an option (e.g. time-stamps) to
the server only if it was negotiated with the client. | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.8 |
| ltmTcpProfileProxyBufferLow The proxy buffer level at which the receive window is opened. | column | RFC1155-SMIGauge | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.9 |