Chelsio Communications Chelsio T4, Инструкция по установке и эксплуатации

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XIX. Traffic Management
Chelsio T5/T4 Unified Wire for Linux
Page 254
4.1.2. Class Weighted Round Robin
Incoming traffic flows from various applications can be prioritized and provisioned using a
weighted round-robin scheduling algorithm.
Class weighted round robin can be configured using the following command:
[root@host~]# cxgbtool <ethX> sched-class params type packet level cl-wrr
channel <Channel No.> class <scheduler-class-index> weight <Y>
Here,

ethX is the Chelsio interface

Channel No. is the port on which data is flowing (0-3).

scheduler-class-index is the TCP traffic class (0-14 for T4 series of adapters and 0-15 for T5
series of adapters).

weight is the weight to be used for a weighted-round-robin scheduling hierarchy. Possible
values include 1 to 99.
4.1.3. Channe l Rate Limiting
This scheduler hierarchy level can be used to rate limit individual channels.
Channel rate limiting can be configured using the following command:
[root@host~]# cxgbtool eth6 sched-class params type packet level ch-rl rate-
unit <scheduler-rate-unit> rate-mode <scheduler-rate-mode> channel 1 max-
rate <maximum-rate>
Here,

ethX is the Chelsio interface

scheduler-rate-unit specifies whether the traffic management rule is configured for bit-rate or
packet rate . Possible values include bits or pkts

scheduler-rate-mode specifies whether the traffic management rule is configured to support
a percent of the channel rate or an effective rate. Possible values include relative or
absolute.

Channel No. is the port on which data is flowing (0-3).

maximum-rate is the bit rate (Kbps) for this TCP stream. The lower limit is 1 Gbps.