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Cisco ACI release 4.1(1i) adds support for WAN SLA
policies. This feature enables tenant admins to apply preconfigured
policies
to specify the levels of packet loss, jitter, and
latency for the tenant traffic over the WAN. When you apply a WAN SLA
policy
to the tenant traffic, the Cisco APIC sends the
preconfigured policies to a vManage controller. The vManage controller,
which
is configured as an external device manager that
provides Cisco Software-Defined Wide Area Network (SDWAN) capability,
chooses
the best possible WAN link that meets the loss,
jitter, and latency parameters specified in the SLA policy.
You apply the WAN SLA policies to the tenant traffic though contracts. Before applying the WAN SLA policies, you must first
establish a connection between the vManage controller and the Cisco APIC.
Cisco APIC release 4.2(1) adds support for enabling returning traffic
from a remote site that is destined for the ACI data
center to receive differentiated services over the
WAN. After the tenant admin registers the Cisco APIC to vManage, the
Cisco
APIC pulls the WAN-SLA policies and the WAN-VPN from
vManage. Then, the Cisco APIC assigns DSCP to each WAN-SLA policy and
pushes a prefix list. The prefix list, which is taken
from the EPG if the contract between this EPG and L3Out has WAN-SLA
configured, enables quality of service on the
returning traffic. The WAN-SLA policy and WAN-VPN are both available in
the
tenant common. Tenant admins map the WAN-VPNs to VRFs
on remote sites.
Branch and Data Center Service Resiliency
Kindly Refer the Link below for more info :
For more information, see the Policies Configuration
Guide:
https://www.cisco.com/c/en/us/support/routers/sd-wan/tsd-products-support-series-home.html
Integrate Cisco XE SD-WAN Router with Cisco ACI chapter of
the Policies Configuration Guide: https://www.cisco.com/c/en/us/support/routers/sd-wan/tsd-products-support-series-home.html.
SD-WAN Router with Cisco ACI chapter of the
Policies Configuration Guide: https://www.cisco.com/c/en/us/support/routers/sd-wan/tsd-products-support-series-home.html.
