Cisco AVS is a hypervisor-resident distributed virtual switch that is specifically designed for Cisco Application Centric Infrastructure (ACI) and managed by the Application Policy Infrastructure Controller (APIC). Cisco AVS implements the OpFlex protocol for control plane communication.
Cisco AVS supports two modes of traffic forwarding: local switching and no local switching. The forwarding mode is selected during Cisco AVS installation.
Cisco AVS is supported as a vLeaf for Cisco APIC with the VMware ESXi hypervisor. It manages a data center defined by the vCenter Server.
Cisco AVS is compatible with any upstream physical access layer switch that complies with the Ethernet standard, including Cisco Nexus switches. Cisco AVS is compatible with any server hardware listed in the VMware Hardware Compatibility List.
Cisco AVS Software Compatibility
Cisco AVS Release 5.2(1)SV3(1.15) is supported as a vLeaf for Cisco APIC with releases 5.1, 5.5, and 6.0 of the VMware ESXi hypervisor.
Note When you choose a Cisco AVS VIB, you must choose the one compatible with the version of VMware ESXi hypervisor that you use. ESXi 5.1 uses xxxx.3.1.1.vib, ESXi 5.5 uses xxxx.3.2.1.vib, and ESXi 6.0 uses xxxx.6.0.1.vib.
The following table lists the compatibility of Cisco AVS with Cisco APIC.
You also can use the APIC GUI or NX-OS style CLI for exporting log files if you are using IPv6 addresses, provided that the destination server supports IPV6 addresses. Previously, if you used IPv6 addresses, you had to issue a vem command to generate log files into a tar folder. See the Cisco AVS Troubleshooting Guide.
Beginning with Cisco AVS Release 5.2(1)SV3(1.15), CDP and LLDP policies are disabled by default. You must enable them in the configuration wizard, either for the Cisco AVS and other switches in the fabric by enabling CDP or LLDP for the Interface Policy Group or for Cisco AVS only by enabling CDP or LLDP as a vSwitch policy. See the Cisco AVS Configuration Guide.
Limitations and Restrictions
Upgrades of Cisco APIC, Leaf Switches, and the Cisco AVS to Cisco APIC 1.2(2g) or Later
Starting with the Cisco APIC 1.2(2g) release, the Cisco AVS uses site-specific certifications; previously, the Cisco AVS used image-based certifications. So when you upgrade from an earlier release to Cisco APIC 1.2(2g) or later, you need to follow a particular sequence when upgrading Cisco APIC, leaf switches, and the Cisco AVS. See the section “Upgrading from a Previous Release to Cisco APIC Release 1.2(2g) or Later” in the Cisco AVS Installation Guide.
Pre-provisioning not Supported for EPG Resolution Immediacy
When you set EPG resolution immediacy, Cisco AVS does not support pre-provisioning, which downloads a policy to a switch before the switch is installed.
Using the Bug Search Tool
Use the Bug Search tool to search for a specific bug or to search for all bugs in a release.
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