Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
11.2.1, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4
Fixed In:
12.1.0, 11.6.1 HF1, 11.5.4 HF2, 11.4.1 HF10
Opened: Oct 08, 2015 Severity: 4-Minor
'tmsh show net cmetrics' reports bandwidth = 0
User cannot view cmetrics data.
tcp profile enables cmetrics-cache. connection involves at least 4 rtt updates.
For 12.0.0 and later, you can get this data using the ROUTE::bandwidth iRule. For earlier versions, there is no workaround.
Properly compute bandwidth with the formula cwnd/rtt.