vSphere 5.1 Networking Improvements – Network Health Check Improvements

In my previous post I mentioned the welcome additions to the esxcli.

Also very much welcomed are operational improvements  to the VDS and to the troubleshooting toolset.

In this release, the VDS gets the following improvements

Network health check

VDS config backup and restore

Management network rollback and recovery

Distributed port – auto expand

MAC address management

LACP support 

BPDU filter

I want to focus on the details surrounding the Network health check improvements 

Per the 5.1 – What’s new – Networking whitepaper  “With Network health check in vSphere 5.1, the VLAN, MTU and Adapter teaming are monitored at 1 minute intervals using proving packets (sent and received via the physical uplink interfaces of the vDS.  Depending on the config on the connected network device, REQ and ACK packets will be received or dropped, indicating a config issue, and displaying a warning in the vSphere client.”

When we open up the vSphere 5.1 client – these new alarms can be found at the Datacenter object (not the DVS object):

vSphere Distributed Switch MTU matched status

vSphere Distributed Switch MTU supported status

vSphere Distributed Switch teaming matched status

vSphere Distributed Switch VLAN trunked status

These new alarms have their trigger details hidden from viewing or editing from within the vSphere client.  The tab displays this message:

Image

Here’s the alarm detail from the PowerCLI commandlet:

PS C:\Program Files (x86)\VMware\Infrastructure\vSphere PowerCLI> Get-AlarmDefinition -Name “*Switch*”| Format-List

Entity : Datacenters
Description : Default alarm to monitor changes in vSphere Distributed Switch vlan trunked status.
Enabled : True
Name : vSphere Distributed Switch vlan trunked status
ExtensionData : VMware.Vim.Alarm
ActionRepeatMinutes : 0
Id : Alarm-alarm-57
Uid : /VIServer=networkdojo\grosas@localhost:443/Alarm=Alarm-alarm-57/

Entity : Datacenters
Description : Default alarm to monitor changes in vSphere Distributed Switch MTU matched status.
Enabled : True
Name : vSphere Distributed Switch MTU matched status
ExtensionData : VMware.Vim.Alarm
ActionRepeatMinutes : 0
Id : Alarm-alarm-58
Uid : /VIServer=networkdojo\grosas@localhost:443/Alarm=Alarm-alarm-58/

Entity : Datacenters
Description : Default alarm to monitor changes in vSphere Distributed Switch MTU supported status.
Enabled : True
Name : vSphere Distributed Switch MTU supported status
ExtensionData : VMware.Vim.Alarm
ActionRepeatMinutes : 0
Id : Alarm-alarm-59
Uid : /VIServer=networkdojo\grosas@localhost:443/Alarm=Alarm-alarm-59/

Entity : Datacenters
Description : Default alarm to monitor changes in vSphere Distributed Switch teaming matched status.
Enabled : True
Name : vSphere Distributed Switch teaming matched status
ExtensionData : VMware.Vim.Alarm
ActionRepeatMinutes : 0
Id : Alarm-alarm-60
Uid : /VIServer=networkdojo\grosas@localhost:443/Alarm=Alarm-alarm-60/

Not quite satisfied, I took a peek at the VMware vSPhere 5.1 Documentation Center; there I found the new objects satisfactorily documented.  🙂

On that note – I need to throw in the towel and call it a night.  Happy learning to any and all.

– Gabe

 

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