What different network traffic types are related to a Hyper-V host in a properly architected enterprise environment? How do vNICs help with this?
Traffic types:
Cluster
- used for communication between the heartbeat and cluster shared volumes redirection
Management
- Provides a connection between the server running hyper v and the infrastructure
- The management network must have connectivity between Active Directory Domain Services, Domain Name System, and Windows Server Update Services. It’s used for the management of the server that is running Hyper-V and the VMs
Live Migration
- Used for virtual machine live migration
- VLANs are recommended for live migration to ensure quality of service, security and traffic isolation…show more content… Storage
- Used for SMB traffic or iSCI traffic
- For a VM to be highly available, all members of the cluster must be able to access the VM State, VHDs, and configuration state. For this to occur you need shared storage.
- Two ways to provide shared storage are Shared Block Storage and File-based storage o Shared Block Storage – options are Fibre Channel, Fiber Channel over Ethernet, iSCSI and Shared Serial Attached SCSI (SAS) o File-based storage – remote file-based storage is provided through SMB 3.0. This multichannel detects and uses multiple network interfaces to deliver high performance and reliable storage connectivity o You need two network adapters of the same type and speed and RDMA (Remote Direct Memory Access) o NIC teaming does not work with RDMA and if used, do not team the adapters.
Replica traffic
- Used for virtual machine replication through the Hyper-V Replica feature
- This traffic occurs between the primary and Replica sites
- Hyper-V replica automatically discovers and uses available network interfaces to transmit replication traffic. This can be controlled with QoS polices with minimum bandwidth
