Communications failure with Cisco Smart License server
ICSeverity
5 - Notice
Impact
Impacts Smart Licensing operation
Description
This error appears if you have Smart Licensing configured on the device. Smart Licensing is a cloud-based unified license management system for managing licenses across Cisco products.
Depending on your network type and setup, there are different methods of communication possible with the CSSM (Cisco Smart Software Manager) portal.
This error appears if you are using an On-Prem or a CSLU server for communication, but it is incorrectly configured, either due to incorrect call-home profile settings or incorrect URL
SMART_LIC-3-COMM_FAILED: Communications failure with the Cisco Smart Software Manager (CSSM) : Received empty response from server
Please check remediation steps toresolve this.
SyslogMessage
SMART_LIC-3-COMM_FAILED,
MessageSample
Apr 10 10:10:10 <> %SMART_LIC-3-COMM_FAILED: Communications failure with the Cisco Smart Software Manager (CSSM) : Received empty response from server THIS IS A SAMPLE MESSAGE
ProductFamily
- Cisco Catalyst 9200 Series Switches
- Cisco Catalyst 9300 Series Switches
- Cisco Catalyst 9400 Series Switches
- Cisco Catalyst 9500 Series Switches
- Cisco Catalyst 9500H Series Switches
- Cisco Catalyst 9600 Series Switches
- Cisco 4000 Series Integrated Services Routers
- Cisco Catalyst 9800 Series Wireless Controllers
- Cisco ASR 1000 Series Aggregation Services Routers
Regex
N/A
Recommendation
Please review the licensing status from show license all or show license summary. Also review the licensing configuration from the show call-home profile all.
If you recently upgraded the device to 17.3.2 and above, you are now using "Smart Licensing using Policy". Therefore, if you are using On-Prem or CSLU method, ensure your method of transport is set to CSLU via command below:
Command: "license smart transport cslu" With On-Prem CSLU method, you have the option to use "Connected to CSSM" or "Disconnected from CSSM" methods. Option 1: Connected to CSSM Through CSLU https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/17-3/configuration_guide/sys_mgmt/b_173_sys_mgmt_9300_cg/sl_using_policy.html#Cisco_Concept.dita_ee6ccac1-38e3-438b-bc00-4cacbbf57f64 Option 2: CSLU Disconnected from CSSM https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9300/software/release/17-3/configuration_guide/sys_mgmt/b_173_sys_mgmt_9300_cg/sl_using_policy.html#Cisco_Concept.dita_2cb9eab3-116b-4dd1-8b8d-c5c1572841d8 Ensure you have the correct CSLU transport URL from SSM on-prem or CSLU device configured under call-home profile ("CiscoTAC-1" is the default profile)
Commands
#show version
#show logging
#show license all
#show license summary
#show call-home profile all
#show tech-support license
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