[Edgecore SONiC] Rate-limit Follow

Reference model:

• Switch model name:

- AS7726-32X

- AS7326-56X

- AS7816-64X

- AS5835-54X(T)

- AS9716-32D

- AS8000(Minipack)

- Wedge100BF-32X

• Edgecore SONiC version: 

- Edgecore-SONiC_20201123_130028_ec202006_74

- Edgecore-SONiC_20201229_070315_ec202006_101

- Edgecore-SONiC_20201229_070315_ec202006_bfn_65(Wedge100BF-32X)

Restriction:

1. Doesn't support Rate-limit for CLI.

2. ACL and Rate-limit cannot be used at the same time

3. AS4630-54PE doesn't support rate-limit for egress.

Example: Setting Rate-limit on AS5835-54X (ingress and egress)

This example is for the AS5835-54X.

Topology:

Procedure:

Step 1: Down speed to 1G on Ethernet0 and Ethernet1.

admin@sonic:~$ sudo config interface speed Ethernet0 1000
admin@sonic:~$ sudo config interface speed Ethernet1 1000

Step 2: Disable TX-disable on Ethernet0 and Ethernet1.

admin@sonic:~$ sudo accton_as5835_54x_util.py set sfp 1 0
admin@sonic:~$ sudo accton_as5835_54x_util.py set sfp 2 0

Step 3: Created the VLAN and allowed the VLAN member to the port.

admin@sonic:~$ sudo config vlan add 1
admin@sonic:~$ sudo config vlan member add -u 1 Ethernet0
admin@sonic:~$ sudo config vlan member add -u 1 Ethernet1

Step 4:   Setting rate limit on Ethernet0 via editing config_db.json.

Example of Ingress.

Ports "Ethernet0" will be limited to 400mbps/sec.

"SCHEDULER": {
        "scheduler.port": { 
               "meter_type": "bytes",
               "pir": "50000000", 
               "pbs": "8192" 
        } 
}, 
"PORT_QOS_MAP": { 
        "Ethernet0": { 
        "ing_scheduler": "[SCHEDULER|scheduler.port]" 
        } 
}

Note:

• scheduler.port is the name of this SCHEDULER
• "meter_type": "packets"/"bytes" 
• "pir": max rate in pps (packet per second)
• "pbs": max burst size in packets
• "PORT_QOS_MAP": Binding the "SHEDULER" on the Ethernet0 and the direction is ingress.
  "ing_scheduler": it means the direction is ingress.
  "egr_scheduler": it means the direction is egress.

Test result:

Example of Egress.

Ports "Ethernet0" will be limited to 800mbps/sec.

"SCHEDULER": {
        "scheduler.port": { 
               "meter_type": "bytes",
               "pir": "100000000", 
               "pbs": "8192" 
        } 
}, 
"PORT_QOS_MAP": { 
        "Ethernet1": { 
        "egr_scheduler": "[SCHEDULER|scheduler.port]" 
        } 
}

Test result: