(top)

(top)

Notes on Expressway VM Configurations

(top)

vDisk 1 = 4 GB, vDisk 2 = 128 GB.

For x8.7 and older, Large VM configuration requires 10Gb NIC and the host CPU must support the AES-NI instruction set (and it must not be masked by ESXi).

Testing was performed on a Cisco UCS C220 M3S platform. Based on evidence from this testing we do not expect there to be any issues with other supported hardware options.

For more information, see Cisco Expressway on Virtual Machine Installation Guide.

IOPS and Storage System Performance Requirements

(top)

Test results:

Activity	Average IOPS	Average r/w latency	Peak read latency	Peak write latency
Performance Test*	5	0.5ms	15ms	2ms
Software upgrade	35	5ms	300ms	160ms
Core dump	40	10ms	100ms	10ms
Burnin test suite	35	50ms	400ms	60ms

* Performance test comprised 100 simultaneous interworked and encrypted calls at 768kbp/s

Note that Cisco VCS software X7.2 and later takes advantage of AES acceleration on Intel Advanced Encryption Standard New Instruction set available on the Cisco C2xx family of servers. This provides enhanced performance for encrypted calls.