5.5.13. Managing capture interface aggregation

5.5.13.1. Introduction

This procedure describes the aggregation of monx capture interfaces.

The aggregation functionality of the capture interfaces on the GCap leads to impacting some related functions:

Maximum Transmission Unit (MTU): the maximum size of a packet that can be transmitted at one time without fragmentation.
MTU: uses the largest value of the interfaces making up the aggregation.
Static rules for filtering flows captured by capture interface: XDP (eXpress Data Path) filter function.
XDP filter. XDP filtering is not applied by default to the aggregation created but rather to the interfaces that comprise it. It must therefore be applied individually to each aggregated interface.
File rebuilding rules.
Rebuild rule: When enabling interface aggregation and multi-tenant detection, file rebuild rules are not generated.

To create an aggregation of mon0 and mon1 interfaces, use the set clusters add interfaces mon0 mon1 command.

Use Procedure C of the Procedure for managing capture interface settings monx.
Note the interfaces to be used (e.g. mon0 and mon1).

Validate.

The system displays the result.

Creating cluster test with interfaces mon0, mon1
Successfully created cluster `test`

Validate.

The system displays the created aggregation.

Name       State      Description          Interfaces
cluster0   Disabled   test                 mon0, mon1  

The aggregation, once created with the Name cluster0, must be activated.

Enter the following command.

(gcap-cli) set clusters enable cluster0