Cisco Network Function Virtualization Infrastructure Software Configuration Guide, Release 26.2 and Later

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Cisco Network Function Virtualization Infrastructure Software Configuration Guide, Release 26.2 and Later

Host system requirements

Updated: June 29, 2026

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Lists the required resources for a standalone Cisco NFVIS.

These resources are required for a standalone Cisco NFVIS.

Table 1. CPU allocation

Total Cores

NFVIS 4.10.x and later Releases

16 or less

1 + (1 core per socket applicable to DPDK systems)

More than 16

2 cores in NUMA-0

1 core in NUMA-1 (if Multi-NUMA node system*)

(1 core per socket applicable to DPDK systems)

* Indicates that Multi-NUMA node systems require an additional CPU core system reserved. This additional core is helpful in processing the cross NUMA nodes, indirectly improving the performance of Cisco NFVIS functions on the system cores.
Note

  • If hyper-threading is enabled on the device, each core reflects two logical CPUs.

Table 2. Memory allocation

Reserved System Memory

Up to 16 GB

Up to 32 GB

Up to 64 GB

Up to 128 GB

Greater than 128 GB

Greater than 256 GB

Reserved for NFVIS

 For UCSC-M6 : 7 GB/ 8 GB*

For UCSC-M6 : 11 GB/ 12 GB*

For UCSC-M6 : 11 GB/ 12 GB*

For UCSC-M6 : 11 GB/ 12 GB*

For UCSC-M6 : 11 GB/ 13 GB*

For UCSC-M6 : 16 GB/ 20 GB*

* Indicates the memory allocation is applicable only for Multi-NUMA node systems. In case of single node systems, the memory allocation values without * is applicable.

Total System Memory

Additional memory required for DPDK support per NUMA node

Upto 63 GB

1

64 GB - 127 GB

2

128 GB - 256 GB

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