• Use Call Home to communicate with CSSM.
Call Home provides e-mail-based and web-based notification of critical system events. This method of
connecting to CSSM is available in the earlier Smart Licensing environment, and continues to be available
with Smart Licensing Using Policy. The following Call Home configuration options are available:
• Direct cloud access: In this method, a product instance sends usage information directly over the
internet to CSSM; no additional components are needed for the connection.
• Direct cloud access through an HTTPs proxy: In this method, a product instance sends usage
information over the internet through a proxy server - either a Call Home Transport Gateway or an
off-the-shelf proxy (such as Apache) to CSSM.
Figure 6: Topology: Connected Directly to CSSM
Considerations or Recommendations:
Smart transport is the recommended transport method when directly connecting to CSSM. This recommendation
applies to:
• New deployments.
• Earlier licensing models. Change configuration after migration to Smart Licensing Using Policy.
• Registered licenses that currently use the Call Home transport method. Change configuration after
migration to Smart Licensing Using Policy.
• Evaluation or expired licenses in an earlier licensing model. Change configuration after migration to
Smart Licensing Using Policy.
To change configuration after migration, see Workflow for Topology: Connected Directly to CSSM, on page
112 > Product Instance Configuration > Configure a connection method and transport type > Option 1.
System Management Configuration Guide, Cisco IOS XE Bengaluru 17.4.x (Catalyst 9400 Switches)
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