ltmTcpProfileInitCwnd
F5-BIGIP-LOCAL-MIB ·
.1.3.6.1.4.1.3375.2.2.6.10.1.2.1.41
Object
column
RFC1155-SMIGauge
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 is zero, meaning to use the values specified in RFC2414. Allowed values are in the range of 0 to 64.
Context
- MIB
- F5-BIGIP-LOCAL-MIB
- OID
.1.3.6.1.4.1.3375.2.2.6.10.1.2.1.41- Type
- column
- Access
- readonly
- Status
- current
- Parent
- ltmTcpProfileEntry
- Table
- ltmTcpProfileTable
- Siblings
- 72
Syntax
RFC1155-SMIGauge
- Source
- RFC1155-SMIGauge
- Base type
Unsigned32
Values & Constraints
Type Constraints
range: 0..4294967295
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 |
| ltmTcpProfileCongestionCtrl The TCP congestion control mode, guiding cwnd growth.
reno - RENO congestion control mode;
newreno - new RENO congestion control mode;
scalable - scalable congestion control mode.… | column | Enumeration | .1.3.6.1.4.1.3375.2.2.6.10.1.2.1.34 |
| 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 |
| 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 |