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Spirent KB Article
Doc ID: KNI16186
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Spirent TestCenter: TX MCS Values with 2SS are NOT achieving MCS11 in 80 MHz - CBW with Upstream traffic
Symptoms
When we are testing upstream traffic with 80 MHz - Channel BandWidth and 2 SS we are observing that Tx MCS values are never coming up with MCS11 (1024-QAM 5/6)
On other other hand if we are testing the same thing with 4SS then we are seeing MCS 11 consistently.
2SS
4 SS
Environment
WiFi
MCS Type
2 SS
4 SS
Explanation/Resolution
CR created:
CR:0145223
JIRA ID: CIPCD-162362
Subject: TX MCS Values with 2SS are NOT achieving MCS11 in 80 MHz - CBW with Upstream traffic
Priority: 0-Asap
Date Time created: 7/14/2020
Target Release: PENDING
Workaround:
Fill the payload fill type as "PRBS"
Use other constant patterns other than 0s in the traffic field
Then after that we have seen we are getting MCS11 in 2SS also.
Root Cause
Known issue.
Version
4.0
Publish Date
2020-09-15
Categories
Product : WiFi,Spirent TestCenter,WiFi
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