Chelsio Communications Chelsio T5 Guía de usuario descargar pdf (Pagina 248)

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Chapter XVIII. Classification and Filtering

Chelsio T5/T4 Unified Wire For Linux Page 248

3.1.1. Examples

 Drop action

[root@host]# cxgbtool ethX filter 496 action drop lip 102.1.1.1 fip

102.1.1.2 lport 12865 fport 20000 hitcnts 1 cap maskless iport 1 proto 17

The above filter rule will drop all UDP packets matching above 4 tuple coming on chelsio port 1.

 Pass action

[root@host]# cxgbtool ethX filter 496 action pass lip 102.2.2.1 fip

102.2.2.2 lport 12865 fport 12000 hitcnts 1 cap maskless proto 6

The above filter rule will pass all TCP packets matching above 4 tuple.

 Switch action

[root@host]# cxgbtool ethX filter 496 action switch lip 102.3.3.1 fip

102.3.3.2 lport 5001 fport 16000 iport 0 eport 1 hitcnts 1 cap maskless

The above filter rule will switch all the packets matching above 4 tuple from chelsio port 0 to

chelsio port 1.

3.2. Listing Filter Rules

 To list the Hash/DDR filters set, run the following command:

[root@host]# cat /proc/drivers/cxgb4/<bus-id>/hash_filters

“source IP”, “destination IP”, “source port” and “destination port” are mandatory

parameters. “cap maskless” parameter should be appended in order to create

Hash/DDR filter rules. Otherwise the above command will create LE-TCAM filter

rules. Filter index provided for creating DDR filter is ignored.

Note

For more information on additional parameters, refer cxgbtool manual by running

the man cxgbtool command.

Note

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