Testing multiple tcont types: Verify that best effort BW is released to assured BW requirement as needed and that fixed BW is reserved always on the PON (TT workflow)

Reference: https://docs.google.com/document/d/1NKO8-82MejTjB1qYHKtDokZ0KcFH5b8mxdsvddecqxw/edit#heading=h.ql92khdxmpl9 

 

Goal: 

• Verify support for Tcont type 4 and 5
• Verify the BW from tcont type 4 is truncated due to the guaranteed and assured BW components of the TCONT Type 5.

ONU: ONU1 and ONU2

Workflow: TT

Services involved: HSIA

Additional BW Indicator: 

• BestEffort for HSIA TP of ONU2(set “additional_bw” in the “us_scheduler” of the HSI TP to “AdditionalBW_BestEffort”)
• BestEffort for HSIA TP of ONU1(set “additional_bw” in the “us_scheduler” of the HSI TP to “AdditionalBW_BestEffort”)

BW Profile: 

 

• Set the “upstreamBandwidthProfile” value in the SADIS config to “TCONT_TYPE4_1Gbps_Peak_User1_HSI_Upstream” for the HSIA service of ONU1

  

{        "id": "TCONT_TYPE4_1Gbps_Peak_User1_HSI_Upstream",        "pir": 1000000,        "pbs": 10000,        "cir": 0,        "cbs": 0,        "gir": 0   }

• Set the “upstreamBandwidthProfile” value in the SADIS config to “TCONT_TYPE5_1Gbps_Peak_500Mbps_Assured_200Mbps_Fixed_User1_HSI_Upstream” for the HSI service of ONU2.

 

  

{         "id":"TCONT_TYPE5_1Gbps_Peak_500Mbps_Assured_200Mbps_Fixed_User1_HSI_Upstream",        "pir": 1000000,        "pbs": 10000,        "cir": 500000,        "cbs": 10000,        "gir": 200000   }

Verify:

Pump 1Gbps upstream from the RG for HSI service of ONU1 and verify that no more than 1Gbps is received at the BNG.

Now pump 1Gbps from the RG for the HSI service of ONU2. The BNG should receive at least 700Mbps (500 + 200 Mbps) for ONU2. The remaining 300Mbps on the PON should be rationed between the two ONUs. Now this is largely scheduler implementation dependent, so this is to be observed on the scheduler in the BAL behaves. If it equally distributes the remaining BW, ONU1 should get 150Mbps and ONU2 in total should get 850Mbps (500+200+150Mbps).