Results Summary and Analysis

For the 5-stage JVD, comprehensive functional testing was performed on devices listed in Platforms / Devices Under Test (DUT) to validate the Junos OS Release 23.4-R2-S3 and Apstra 5.0. During testing the “Check gRPC Reset Count” anomalies were noticed on Apstra Blueprint as shown in which was due to an issue in Apstra 5.0 and so a workaround was suggested to disable gRPC telemetry collection as is described in the Important Note found in section Juniper Hardware and Software Components.

Figure 1: Check gRPC Reset Count Anomaly

These scale numbers are generated for asymmetric IRB. However, the difference in scale numbers is minimal and the L3 overlay next-hop limit of 28000 on QFX5130 is reached before any other scale limitation.

Table 1: :Scaling Numbers Tested
Platform	Device	VLANs VNIs with IRB	MAC_IPs/VN/port	VTEP	ESI	Global_MAC	Global_MAC_IP	Global_NDP_hosts	BGP Total Paths	BGP Active Paths
Scale Scenario 1
Compute Leaf1	qfx5120-48YM-8C	50	10	5	1	2717	5710	1800	49412	24760
Storage Leaf1	qfx5130-32cd	50	10	5	1	2716	5709	1800	48898	24503
Border Leaf1	qfx5130-48c	50	10	5	1	2716	5709	1800	48858	24483
Scale Scenario 2
Compute Leaf1	qfx5120-48YM-8C	500	5	5	1	13527	27649	9000	243650	121879
Storage Leaf1	qfx5130-32cd	500	5	5	1	13516	27647	9000	243200	121654
Border Leaf1	qfx5130-48c	500	5	5	1	13516	27647	9000	241002	120555
Scale Scenario 3
Compute Leaf1	qfx5120-48YM-8C	1000	2	5	1	10827	22907	3600	239058	119583
Storage Leaf1	qfx5130-32cd	1000	2	5	1	10816	22901	3600	237764	118936
Border Leaf1	qfx5130-48c	1000	2	5	1	10816	22901	3600	236060	118084

The scale numbers above are not device maximums; they only reference the scale at which these multidimensional test cases are performed.

Overall, the JVD validation testing didn’t detect any issues, and all performance parameters were within the threshold and performed as expected.