Technical Documentation

Improving Performance While Collecting Gate Statistics

Collecting statistics on packets that are dropped on a gate can impact system performance. To improve performance, the software can limit the number of FUF terms installed on the Packet Forwarding Engine for a virtual BGF. This limit is the maximum value of the following parameters configured on the router:

  • The maximum number of FUF terms installed for the virtual BGF
  • The maximum percentage of gates with FUF filters relative to all gates currently installed for the virtual BGF

To configure a limit on the number of FUF terms installed on the Packet Forwarding Engine for a virtual BGF:

  1. Access the configuration of your virtual BGF.
    [edit services pgcp]user@host# edit servicesgateway bgf-1
  2. Specify the maximum number of FUF terms installed for the virtual BGF.
    [edit services pgcp gateway bgf-1]user@host# set fast-update-filtermaximum-terms 3000
  3. Specify the maximum percentage of gates with FUF filters relative to all gates currently installed for the virtual BGF.
    [edit services pgcp gateway bgf-1]user@host# set fast-update-filter maximum-fuf-percentage 15

Published: 2010-04-13