The GUID identifying an ExpressRoute circuit, which you pass to the connectivity provider. It is not a secret, and charges begin as soon as it is issued.
Also called s-key.
Read more: Microsoft Learn
In the Ultra Transcenders books
Each book explains Service key in context, with comparison tables and the common traps.
Terms in this definition
- GUID
A 128-bit value that is unique, used for things such as session IDs or the default names given to workspaces.
- ExpressRoute circuit
The logical link between on-premises and Microsoft, provided by a connectivity partner or through ExpressRoute Direct. A service key identifies it, and it carries both Microsoft and private peering.
- Connectivity provider
Telecoms partner that, given the circuit's service key, provisions ExpressRoute at a peering location; with ExpressRoute Direct you connect without one.
- Secret
Object in Key Vault storing an arbitrary string value, for instance a password, API key or connection string.