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Spirent KB Article
Doc ID: FAQ18088
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Spirent TestCenter: How Group Subscriptions with Zero Rx Frames is determined in the RFC 3918 Multicast Group Capacity test?
Environment/Versions
RFC-3918 Group Capacity test
Multiple Egress Ports
Answer
The column called "Group Subscriptions with Zero Rx Frames" is determined by the number of Egress ports multiplied by the Attempted Multicast Groups.
Thus you could see the Group Subscriptions with Zero Rx Frames to be much greater than the Attempted number of groups.
To check which Rx port and Group was not received:
Go to the results under RFC 3918 Results -> Multicast Results by Rx Port and Group
You can see which receive port did not receive a specific group.
Although if the test was large with many Rx ports and many multicast groups it will take a long time for the results to show up.
A faster PC with sufficient resources may help improve this issue.
Version
1.0
Publish Date
2017-09-08
Categories
Product : Spirent TestCenter,MCAST,RFC 3918
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