Scaling guidelines for Cflowd statistics collection
Scaling guidelines for Cflowd statistics collection
Scaling guidelines for Cflowd statistics collection
The table below shows the scaling limits for a 5620 SAM Cflowd Auxiliary in its ability
to process cflowd flow records from the network and produce IPDR formatted files. The
guidelines are divided into the 5620 SAM Cflowd Auxiliary collecting in a
Residential/Mobile deployment and the 5620 SAM Cflowd Auxiliary collecting in a
Business deployment.
For Residential and Mobile deployments, the only statistics types that should be in use are
Volume, Comprehensive, Unknown and corresponding Special Study types. TCP and
RTP are not supported in Mobile, and although the statistics types are available for
Residential deployments, the use case is not, and there are no reports for this data.
Additionally, even for Residential, the only reports available are for Comprehensive.
Comprehensive statistics have a fixed 60min aggregation interval. Due to the amount of
data generated in a Mobile deployment, Volume statistics require an aggregation interval
of 60 minutes. As an alternative, Volume Special Study statistics on specific subscribers
can be used. The only key factor of difference is whether or not additional counters are
enabled for Comprehensive statistics.
Table 6-17
cflowd statistics scaling limits for residential and mobile deployments
5620 SAM Cflowd Auxiliary
processing rate in flows per
second
Counter Selection
Maximum number of
unique objects in memory
Packet Loss per Hour
100,000 FPS
Default two counters
100M Objects
<= 2%
All counters
60M Objects
<= 1%
Notes:
1.
Default: two counters. Volume: total bytes/total packets. Comp-volume: total bytes StoC/CtoS sum
unknown. Only one counter exists. Vol SS: should be minuscule. All counters: Comp-volume has a total of
ten counters that can be enabled.
2.
Number of aggregated output requests that are sent to the server every 60 minutes. Assumes transfer has
sufficient bandwidth to complete in a timely manner.
3.
Packet loss may increase if communication between the 5620 SAM Cflowd Aux and target file server is
interrupted.
Scaling
Scaling guidelines for Cflowd statistics collection
Overview
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6-22
5620 SAM
3HE-09809-AAAG-TQZZA 13.0 R7
Issue 1
December 2015
