Use of load balancing option in Traffic shaping in MX

[knaik99]

If we use load balancing then 

1.traffic will be flowed from both WAN link right?

Can we set any proportion?

2.If we have 2 WAN link at site1 & site2 respectively and we want auto VPN between both site and then how many auto-vpn tunnel we can have between site1 & site2 ?

as per me ,we have 2 tunnel i.e. WAN1--WAN1 & WAN2--WAN2

Please explain

[alemabrahao]

Load balancing

When enabled, Load balancing spreads Internet traffic across both uplinks proportional to the Internet1 and Internet2 bandwidths specified above.

Example: If WAN 1's bandwidth is 9 Mbps and WAN 2's bandwidth is 1 Mbps, the load-balancing algorithm sends 90% of the traffic through the WAN 1 uplink and 10% of the traffic through the WAN 2 uplink.

https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/SD-WAN_and_Traffic_Shaping

[ww]

take a look here:

https://community.meraki.com/t5/Security-SD-WAN/Maths-number-of-tunnels-full-mesh-and-hub-and-spoke/...

assuming they are both hub, and you have vpn active-active you would have 4 tunnels.   

site1 - wan1 goes to to site2 WAN1 and WAN2

site1 - wan2 goes to to site2 WAN1 and WAN2

[knaik99]

if one site is Hub and other is spoke then how many tunnel--

if both site are spoke and going to single HUB then how many tunnel---

with same Uplink count