Chelsio Communications Chelsio T4 Betriebsanweisung PDF herunterladen (Seite 214)

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XVI. Traffic Management

5. Usage

5.1. Non-Offloaded Connections

The following example demonstrates the method to rate limit all TCP connections on class 0 at

a rate of 300 Mbps for Non-offload connections:

1. Load the Network driver in NIC mode.

[root@host]# modprobe cxgb4

2. Bind the NIC TX queue to class 0

[root@host]# cxgbtool ethX sched-queue 0 0

3. Set the appropriate rule for class 0

[root@host]# cxgbtool ethX sched-class params type packet level cl-rl

mode class rate-unit bits rate-mode absolute channel 0 class 0 max-rate

300000 pkt-size 1460

5.2. Offloaded Connections

The following example demonstrates the method to rate limit all TCP connections on class 0 at

a rate of 300 Mbps for offloaded connections:

1. Load the Network driver in TOE mode

[root@host]# modprobe t4_tom

2. Create a new policy file (say new_policy_file) and add the following line to associate

connections with the given scheduling class.:

src host 102.1.1.1 => offload class 0

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