Werk #13337: Add Monitoring for Ciena Switch 5171 and 5142

Component	Checks & agents
Title	Add Monitoring for Ciena Switch 5171 and 5142
Date	Nov 10, 2021
Level	Trivial Change
Class	New Feature
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.1.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

Currently, the following properties are monitored:

• Tunnels together with their statuses
• CFM services together with their statuses and byte transfer
• Ports together with their signal power

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