A fenced-off replica of a production network within a virtual lab, so verified machines can run without clashing. Up to 9 per lab.
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In the Ultra Transcenders books
Each book explains isolated network in context, with comparison tables and the common traps.
Terms in this definition
- Azure AI Search replica
Additional copy of a search service's engine and indexes. Replicas spread queries for load balancing and improve availability, so adding them is the fix when queries are throttled with HTTP 503.
- virtual lab
A sandboxed environment that copies production networking while being kept separate from it. SureBackup, SureReplica, On-Demand Sandbox and staged restore all start their machines inside one.
Related terms
- NSX VPC
Isolated network space users run self-service under an NSX project, with dedicated subnets, security rules and built-in IPAM; a further tenancy tier.
- proxy appliance
A helper Linux VM placed on the virtual lab host with links into production and into each isolated network. Routing and masquerading through it let the backup server talk to machines running inside the lab.
- Test failover
A Site Recovery rehearsal that spins up VMs in an isolated network while replication carries on. Each VM is placed in whichever target subnet shares its source subnet's name, failing that the alphabetically first one.
- VPC
Isolated network space in NSX, made up of subnets that its own VPC gateway routes between. Each one belongs to an NSX project and gets external connectivity from a transit gateway.