The Cisco AVS is a customized Cisco Nexus 1000V switch that is integrated with the Cisco Application Centric Infrastructure (ACI) and managed by the Application Policy Infrastructure Controller (APIC). Cisco AVS implements the OpFlex protocol for control plane communication.
The Cisco AVS supports two modes of traffic forwarding: local switching (LS) mode and Cisco FEX mode. The forwarding mode is selected during Cisco AVS installation.
The Cisco AVS is supported as a vLeaf for the Cisco APIC with the VMware ESXi hypervisor. It manages a data center defined by the vCenter Server.
The Cisco AVS is compatible with any upstream physical access layer switch that complies with the Ethernet standard, including Cisco Nexus switches. The Cisco AVS is compatible with any server hardware listed in the VMware Hardware Compatibility List (HCL).
Cisco AVS Software Compatibility
The Cisco AVS is supported in Release 4.2(1)SV2(2.3) and later releases.
The Cisco AVS Release 5.2(1)SV3(1.1) is supported as a vLeaf for the Cisco APIC with releases 5.1 and 5.5 of the VMware ESXi hypervisor.
The following table lists the compatibility of the Cisco AVS with the Cisco Application Policy Infrastructure Controller (APIC).
Table 1 Cisco AVS and Cisco APIC Compatibility
Cisco AVS Version
Compatible Cisco APIC Version
1.0(1e), 1.0(1h), 1.0(1k), 1.0(1n)
1.0(1e), 1.0(1h), 1.0(1k), 1.0(1n)
New and Changed Information
Starting in this release, the Cisco Virtual Switch Update Manager (VSUM) supports the Cisco AVS. Cisco VSUM enables you to add hosts and upgrade the Cisco AVS using the VMware vSphere Web Client.
Limitations and Restrictions
Cisco AVS Software Restrictions
Choosing Encapsulation Type and Switching Mode
The encapsulation type (VXLAN versus VLAN) and the switching mode (FEX Enable, also known as No Local Switching mode, versus FEX Disable, also known as Local Switching mode) must be selected at the time of VMM domain creation. Changing these selections after the VMM domain is created is not supported. If you want to change the encapsulation or the switching mode, you must destroy the VMM domain and the corresponding DVS from the VMware VCenter and then recreate the VMM domain with the desired selection.
No Direct Upgrade to Release 5.2(1)SV3(1.5)
You cannot upgrade Cisco AVS Release 5.2(1)SV3(1.1) directly to Release 5.2(1)SV3(1.5). If you want to upgrade to Release 5.2(1)SV3(1.5) you must upgrade Cisco AVS to Release 5.2(1)SV3(1.3) or Release 5.2(1)SV3(1.3b) and then upgrade Cisco AVS to Release 5.2(1)SV3(1.5).
Maximum TCAM Entries for Each TOR Pair
Each top-of-rack (TOR) pair has a maximum of 4096 ternary content addressable memory (TCAM) entries.
Maximum EPGs for Each Cisco AVS
You can enable a maximum of 1,497 endpoint groups (EPGs) for each Cisco AVS. Mapping one EPG to one Virtual Ethernet (vEth) uses eight ports, but unmapping the EPG does not deallocate the ports back into the pool to be used by another EPG.
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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