Performance SLAs are used to measure the health of links
that are connected to SD-WAN member interfaces by either sending probing
signals through each link to a server, or using session information that is captured
by firewall policies (see Passive WAN health measurement for information), and
measuring the link quality based on latency, jitter, and packet loss. If a link
fails all of the health checks, the routes on that link are removed from the
SD-WAN link load balancing group, and traffic is routed through other links.
When the link passes SLA, the routes are reestablished. This prevents traffic
from being sent to a broken link and getting lost.
First step create Performance SLA, To create Performance
SLAs enter Network select SD-WAN chose Performance SLAs
click Create New dialog box or Edit Default rule this Lap, I chose
default rule Default_Google Search
Select on Default_Google Search click on Edit
Severs: we add server google or other server
DNS:
8.8.8.8
Participants: choses Specify we select All ISP
This rule we configure Vlan30 thought out WAN1 ans Vlan40
thought out WAN2, but when WAN1 lost Vlan30 have to switch to WAN2 and WAN2
lost Vlan40 automatically thought out WAN1. Now we testing tracer
Testing lost WAN1
But internet it still available
