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Cisco Bug: CSCta76335 - Data Throughput Performance impacted when Lawful Intercept is enabled.

Last Modified

Jul 21, 2010

Products (1)

  • Cisco 7600 Gateway GPRS Support Node

Known Affected Releases


Description (partial)

Data Throughtput Performance for all packet sizes will be impacted when 
PDP's on GGSN are tapped for Lawful Intercept. 

Each of the GGSN Processor on the SAMI card were configured with 500 
APN's and one Vrf per APN and 64K PDP's session, rendering a total of 384K
PDP sessions per GGSN Card. With this configuration and without LI enable 
the data throughput for a 64byte size frame was 1.24 Million Packets Per 
Second at No-Drop-Rate.

When 1% of 384K PDP session per GGSN SAMI Card was tapped for Lawful 
Intercept the data throughput for a 64byte size frame was 648K Packets Per
Second at No-Drop-Rate.
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