Used by a vSphere HA host to test whether it has lost network contact: if pings to it fail, the host considers itself isolated. The management network gateway is used unless configured otherwise, and das.isolationaddress0 to 9 adds as many as ten more.
Read more: Broadcom TechDocs
In the Ultra Transcenders books
Each book explains isolation address in context, with comparison tables and the common traps.
Terms in this definition
- vSphere HA
When a host fails, this cluster capability restarts its VMs elsewhere; through VM Component Protection and VM Monitoring it also reacts to storage and VM failures.
- management network
Carries traffic between an ESX host and vCenter, along with other management traffic. From the DCUI, Configure Management Network lets an administrator change its VLAN, addressing, name servers and NICs.