Cisco Collaboration Infrastructure Requirements

Publisher

Cisco Systems

URL

https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/uc_system/virtualization/cisco-collaboration-infrastructure.html

Published

unknown

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco website terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• On Cisco Business Edition 6000/7000 appliances of generation M6 or later, the VMware vSphere ESXi licence must be a general-purpose licence. in context
• Unless an application says otherwise, Collaboration applications may share a host with other Cisco Collaboration apps, other Cisco apps and third-party apps, provided every application's VM placement and minimum hardware rules are met. UCCE and Cisco WebEx Meetings Server are named as having their own restrictions. in context
• Physical CPU cores must not be oversubscribed for Cisco Collaboration VMs unless an application says otherwise: the host must have at least as many physical cores as the total vCPUs of all its VMs. in context
• ESXi CPU reservations are hardcoded in the Cisco-provided OVA and must not be changed unless the application says so. in context
• Cisco's infrastructure page budgets ESXi 8.0 host memory at a minimum of 8 GB, with 12 GB for typical production deployments. in context
• Supported compute includes Cisco Business Edition 6000/7000 appliances, Cisco UCS B-, C- and X-Series, Cisco HyperFlex, and third-party blade or rack servers or hyperconverged infrastructure that meet Cisco's specifications. in context
• Hyperthreading should be enabled in the BIOS, but sizing VMs so that the total vCPU equals the number of ESXi logical processors is not supported unless an application specifically allows it. in context
• Cisco's Collaboration Infrastructure Requirements page states that VMware vSphere ESXi is the only supported hypervisor for Cisco Collaboration applications, naming Microsoft Hyper-V, Citrix Xen, Red Hat Virtualization and VMware Cloud Foundation as unsupported. disputed in context
• Host physical memory must not be oversubscribed: usable RAM must be at least the total vRAM of all VMs plus the memory ESXi itself needs. in context
• Cisco Collaboration applications do not support any third-party public cloud IaaS offer, including VMware Cloud Foundation-based public cloud offers and on-premises hybrid-cloud extensions of public clouds. in context
• Cisco sizing may not count Max Turbo Frequency, and CPU power-saving features that throttle the CPU are not supported for Collaboration VMs. in context
• Cisco defines small systems as under 1,000 users and under 2,500 devices (similar to Business Edition 6000 limits). For these, processors with a base frequency of 2.00 to 2.49 GHz are always supported. in context
• Unless an application says otherwise, Cisco Collaboration applications require storage with average VM operating system latency per command within 25 ms. in context
• Supported CPU families listed include Intel Xeon (Skylake through Granite Rapids) and AMD EPYC (3rd-gen Milan, 4th-gen Genoa and 5th-gen Turin). in context
• Thin provisioning is allowed, but Cisco warns that running out of disk space on thin-provisioned storage will cause application instability and data corruption. in context

Cite this source record

APA

WarmTransfer. (2026, September 25). Cisco Collaboration Infrastructure Requirements. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-virt-collab-infrastructure

BibTeX

@misc{warmtransfer-cisco-virt-collab-infrastructure,
  title  = {Cisco Collaboration Infrastructure Requirements},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-virt-collab-infrastructure},
  note   = {Cisco Systems, accessed 2026-09-25}
}