Performance Capabilities - Cisco TelePresence Administrator's Manual

Reference material

Performance capabilities

The performance capabilities of VCS X8.1 software running on Large VM server deployments and standard
VCS appliances are summarized below. In all cases, note that:
You can cluster up to 6 VCSs to increase capacity by a maximum factor of 4.
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Logging is at default levels.
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Performance capacity will be reduced by features such as presence, provisioning, TURN relay services,
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and by configuring large numbers of zones and search rules.
VM hardware requires a minimum of 6GB RAM.
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Large VM servers (minimum 8 cores with 2 x 10Gb NIC)
Supports the following set of concurrent calls and registrations:
500 encrypted traversal calls @ 768kbps or 1000 encrypted SIP audio traversal calls @ 64kbps; and
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500 non-traversal calls; and
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5000 registrations
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This assumes a maximum sustained call rate of 10 calls per second.
VCS appliances (or equivalent VM server with 2 cores and 1Gb NIC)
Supports the following set of concurrent calls and registrations:
100 encrypted traversal calls @ 768kbps; and
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500 non-traversal calls; and
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2500 registrations
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This assumes a maximum sustained call rate of 5 calls per second.
Cisco VCS Administrator Guide (X8.1.1)
Performance capabilities
Page 356 of 507