Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP LTM, PEM
Known Affected Versions:
11.4.0, 11.4.1
Opened: Oct 15, 2013 Severity: 3-Major
After 200-ok following 100-continue, the BIG-IP system ICAP client sometimes stops sending ICAP request body to ICAP server, mid-stream (no ICAP termination).
Server stops receiving data so cannot complete its response. Transaction hangs and adaptation virtual server (with response-adapt profile) will eventually time out and perform its service-down action.
ICAP preview-length >= ADAPT preview-size(lesser is used). Server responds with 100-continue after preview, and later with 200-ok.
Increasing ADAPT preview-size to a few KB greater than ICAP preview-length might reduce the frequency of occurrence.
None