Spectrum NCM error : ssh_dispatch_run_fatal: Connection to <ip_address> port 22: Invalid key length

Products

• CA Spectrum

Issue/Introduction

we are getting the subjected error while trying to capture configuration from the devices. Following are two debug logs from two sample devices. Kindly help to fix.

#ssh -vvv <username>@<ip_address>
ssh_dispatch_run_fatal: Connection to <ip_address> port 22: Invalid key length

Environment

Release : 10.4.1

Component : Spectrum Core / SpectroSERVER

Cause

The client's datacenter team provide very limited services in openssh due to security concerns.

Resolution

We reconfigured the devices accordingly and it is now working fine.