Aci Fabric Command
For each tenant the fabric provides a virtual default gateway that spans all of the leaf switches assigned to the tenant.
Aci fabric command. Multiple sites buildings or rooms can span distances that are not serviceable by enough fiber connections or are too costly to connect each leaf switch to each spine switch across the sites. Each ingress interface supports the default gateway interface. The aci fabric provides tenant default gateway functionality that routes between the aci fabric vxlan networks. This command configures a vpc domain consecutively for a selected set of leaf node pairs.
All of the ingress interfaces across the fabric share the same router ip address and mac address for a given. Typically an aci fabric implementation is a single site where the full mesh design connects each leaf switch to each spine switch in the fabric which yields the best throughput and convergence. Vpc domain consecutive domain start leaf start node end node. Techsupport controller controller controller controller id for example 1 range for example 1 2 name for example apic1 or name list for example apic1 apic2.
The aci fabric is formed from multiple components. Issues with ifm can prevent fabric nodes communicating and from joining the fabric. Ls aci system controllers show fabric membership executing command. The consecutive and reciprocal options allow auto configuration of a vpc domain across all leaf nodes in the aci fabric.
Some of these components include bridge domains bds and endpoint groups epgs to provide layer l2 connectivity or default gateway functions for a group of endpoints. Another one is the layer 3 out l3out or external routed network in cisco apic gui prior to the apic release 4 2 which is to provide layer 3 l3 connectivity between servers connected to aci and other network domains outside of the aci fabric through routing. In multi site scenarios full mesh connectivity may be not possible or may be too costly.