VMware notes
See cisco\Nexus
- VMware dont need L2
- VSphere5 - 10ms max delay for migration
- VM recovery is restart from cold, if power failure.
Multi Interface load-balancing and fail-over
You must enable beacon probing when downstream link failures may impact availability and there is no Link State Tracking on the physical switch.
- ESX periodically broadcast beacon packets out of all uplinks in a team.
- If an uplink fails to receive any beacon packets (actually missing 3 consecutive packets), we mark it bad.
- If a team has two uplinks, any link failure will result in all packets being sent to both uplinks.
TLA's
- Flow
- [VM]-vNIC-on VM-FEX-10Gto-Nexus2K/5k-vEth port.
- floating vEthernet interface - can migrate with vm
- VM-FEX - Cisco Virtual Machine Fabric Extender - on UCS system with Palo chipset in the server blades
- VMXNET3 paravirtualized device driver
- VMDirectPath - Virtual and Physical Nic matches, vm can talk directly to HW.
- vSphere 5 introduced support for vMotion with VMDirectPath for VM-FEX NICs
- VEM - Virtual ethernet module
...