The following two options relate to the leaking of subnets (routes) from the VRF in which the L3Out & External EPG are configured to another EPG (& VRF). This EPG could be an internal EPG or another External EPG. The first option is to permit inter-vrf leaking, the second option is to allow contracts to be applied to the subnets.
Now, let us start with the Inter-VRF configurations. Inter-VRF route leaking for communication between VMs in 2 different tenants/vrf's Step1: Configure shared subnet under the provider-epg as opposed to configuring under BD. Step2: Configure shared subnet under consumer-bd . Step3: Create a global contract in tenant provider-tenant
2. external connectivity I cannot use the VRF-lite coexistence model or the border model listed in the VXLAN EVPN Multi-Site Design and Deployment White Paper. My idea was to use route-leaking with import and export maps locally on the devices to provide external reachability into the different vlans.
Using Cisco APIC, you can map double-tagged VLAN traffic ingressing on a regular interface, PC, or VPC to an EPG. When this feature is enabled, when double-tagged traffic enters the network for an EPG, both tags are processed individually in the fabric and restored to double-tags when egressing the ACI switch.
VRFs, Route leaking, Inter VLAN routing, BGP (Design, RR, Traffic Engineering). LDP, Segment Routing, RSVP-TE. Platform Experience with Cisco Nexus 7000 series, 5000 series, Nexus 1000v, ASR 1004, Cloud services router 1000v, ISR G2/G3, IOS-XRv 9K (VNF core). SWITCHING:
• VRF Segregation, Shared Services and Cloud-bursting between on-prem and public cloud. The industry impact that ACI Anywhere had: • It represents the industry’s most comprehensive hybrid ...
Cisco ACI Inband Management ... The first option is to permit inter-vrf leaking, the second option is to allow contracts to be applied to the subnets. The second option gives a little more filtering capability that usual contracts only, contracts state L4 filtering and not L3, this gives the L3 filtering control for contacts. ...
VRF - Cisco設定例 以下では1行目でVRF名を「CustomerA」として作成して、そのVRFの識別子を「1:100」として設定して います。VRFの識別子をRD（Route Distinguisher）と言います。RDは、MPLS-VPNの項目で詳細に解説。 VRFの作成