Bug ID 597405: Mitigate SSL handshake delay when TCP nagle is enabled.

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Fixed In:
13.0.0

Opened: Jun 03, 2016

Severity: 3-Major

Symptoms

When TCP nagle is enabled, it adds some delay for SSL handshake message. Then SSL should send HUDCTL_REQUEST_DONE/HUDCTL_RESPONSE_DONE to TCP to remove the delay for all SSL handshake messages which are sent and wait for reply.

Impact

it adds some delay for SSL handshake message. Then SSL should send HUDCTL_REQUEST_DONE/HUDCTL_RESPONSE_DONE to TCP to remove the delay for all SSL handshake messages which are sent and wait for reply.

Conditions

When TCP nagle is enabled

Workaround

None

Fix Information

When TCP nagle is enabled, it adds some delay for SSL handshake message. Then SSL should send HUDCTL_REQUEST_DONE/HUDCTL_RESPONSE_DONE to TCP to remove the delay for all SSL handshake messages which are sent and wait for reply.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips