Once a cluster has more than 1,250 endpoints, it needs two TFTP server nodes and a dedicated publisher.

Checked 2026-09-25

Two TFTP server nodes are required, in addition to a dedicated publisher, if the number of endpoints in the cluster exceeds 1,250.
Vendor
Cisco
Product
Unified Communications Manager
Subsystem
cluster sizing
Deployment
on-premises
Region
not restricted
Release range
CSR 14
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM virtualization and sizing: source note cucm-virtualization-sizing-csr14-tftp-threshold. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-virtualization-sizing-csr14-tftp-threshold

BibTeX

@misc{warmtransfer-claim-cucm-virtualization-sizing-csr14-tftp-threshold,
  title  = {Unified CM virtualization and sizing: source note cucm-virtualization-sizing-csr14-tftp-threshold},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-virtualization-sizing-csr14-tftp-threshold},
  note   = {Source note cucm-virtualization-sizing-csr14-tftp-threshold, checked 2026-09-25}
}

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