Frame Size Distribution Statistics
The Frame Size Distribution statistics track all incoming/outgoing frames. For example, packets coming on Rx ports from a traversed switch are counted.
In the case of broadcast packets, which have been cloned to all interfaces created per port, the Frame Size data does not count the cloned packets, because there is actually only one real packet that arrives on the physical port (for example, ARP packets).
The frame size distribution statistics populate the L2-3 Frame Size Distribution for Client Ports and L2-3 Frame Size Distribution for Server Ports views.
The statistics in these views are part of the application-generated statistics in the Defaults group node.
The following frame size distribution statistics are available in both the L2-3 Frame Size Distribution for Client Ports and the L2-3 Frame Size Distribution for Server Ports views:
- CPU Rx Frame Size less than 64
- CPU Rx Frame Size 64 to 127
- CPU Rx Frame Size 128 to 255
- CPU Rx Frame Size 256 to 511
- CPU Rx Frame Size 512 to 1023
- CPU Rx Frame Size 1024 to 2047
- CPU Rx Frame Size 2048 to 4095
- CPU Rx Frame Size 4096 and above
- CPU Tx Frame Size less than 64
- CPU Tx Frame Size 64 to 127
- CPU Tx Frame Size 128 to 255
- CPU Tx Frame Size 256 to 511
- CPU Tx Frame Size 512 to 1023
- CPU Tx Frame Size 1024 to 2047
- CPU Tx Frame Size 2048 to 4095
- CPU Tx Frame Size 4096 and above
In peer-to-peer (P2P) scenarios (for example, VoIP-SIP or Stateless peers), the Frame Size Distribution mechanism cannot determine the client/server role of the peers. Thus, the same statistics appear in both the Frame Size Distribution Client Ports and the Frame Size Distribution Server Ports views.
While running in 1G Aggregated mode, if no active port is selected, a warning appears (for example, 'Traffic@Network1: Frame size distribution statistics may not be accurate without an active port selected in 1G Aggregated mode.')
To have frame size distribution statistics exposed in StatViewer, in the IxLoad Test Configuration >Test Options>Statistics pane, select the Enable Frame Size Distribution Stats check box. It is disabled by default.
Frame Size Distribution statistics (and the views including them) become available in StatViewer only with IxOS 5.60 and above and the following load modules:
- ALM T8
- ALM-T8-1GB
- ELM-1G
- IxYukon - NP2
- ASM XMV12
- ASM XMV12X-RTP
- LSM XMV16
- XMV
- Acceleron NP/XP