Virtual switch networking in LDOM error

Hi All,
I am trying to create virtual switches for 10 Gbe interfaces and when I try to bind the resource to the domain, I get the following warning:
root@ebsprdb1 # ldm bind-domain vmprdb1
Mar 11 15:28:54 ebsprdb1 vsw: WARNING: vsw6: Failed to programmacaddr,vid(0:14:4f:f8:23:c5, 0) err=6
Mar 11 15:28:54 ebsprdb1 vsw: WARNING: vsw7: Failed to programmacaddr,vid(0:14:4f:fb:60:5c, 0) err=6
I am able to see the devices in the Guest Domain. Is it safe to ignore the messages?
I used the following commands:
root@ebsprdb1 # dladm show-phys
LINK MEDIA STATE SPEED DUPLEX DEVICE
net1 Ethernet unknown 0 unknown igb1
net0 Ethernet up 1000 full igb0
net3 Ethernet unknown 100 full igb3
net2 Ethernet up 1000 full igb2
net4 Ethernet up 10000 full nxge0
net5 Ethernet unknown 0 unknown nxge1
net6 Ethernet unknown 0 unknown nxge2
net7 Ethernet unknown 0 unknown nxge3
net8 Ethernet up 10000 full nxge4
net9 Ethernet unknown 0 unknown nxge5
net10 Ethernet unknown 0 unknown nxge6
net11 Ethernet unknown 0 unknown nxge7
net27 Ethernet up 1000 full vsw0
net29 Ethernet up 1000 full vsw1
net16 Ethernet up 10000 full vsw2
net33 Ethernet up 10000 full vsw3
net13 Ethernet up 10 full usbecm0
net35 Ethernet up 0 unknown vsw4
net37 Ethernet up 100 full vsw5
root@ebsprdb1 # dladm show-linkprop -p mtu net16
LINK PROPERTY PERM VALUE DEFAULT POSSIBLE
net16 mtu rw 1500 1500 1500
root@ebsprdb1 # dladm show-linkprop -p mtu net33
LINK PROPERTY PERM VALUE DEFAULT POSSIBLE
net33 mtu rw 1500 1500 1500
root@ebsprdb1 # ldm add-vsw net-dev=net16 primary-vsw16 primary
root@ebsprdb1 # ldm add-vsw net-dev=net33 primary-vsw33 primary
root@ebsprdb1 # ldm add-vnet vnet16 primary-vsw16 vmprdb1
root@ebsprdb1 # ldm add-vnet vnet33 primary-vsw33 vmprdb1
Regards

Not sure if you figured this out but at least in my case, tagging the VSW with a VLAN id when the port was already tagged on the switch generated this error. When I recreated the VSW without specifying a VLAN id eliminated the error; all frames leaving the physical switch port will be tagged with its VLAN on egress anyway unless you're using multiple VLANs on the same port.

Similar Messages

"Server either does not have a virtual switch configured or none of the configured virtual switches have an IP address assigned" error driving me nuts!

OK; have been trying to setup a test VM based RDS deployment for a few days now with no luck.
this error mentioned above:
"Server <server name> either does not have a virtual switch configured or none of the configured virtual switches have an IP address assigned" error is driving me nuts!
I have removed and re-added the RD Virtualization Host role numerous times, each time having the "create a virtual switch" checkbox selected, but it did NOT create any virtual switch.
I created the external virtual switch manually and tried to create the desktop collection again, no luck with the same error.
a few questions:
1. you don't assign IP to a switch! you assign IP to Network Interfaces. why does the error puts it like this?! it is technically wrong.(yeah yeah I know all about how you'd assign IP to managed switches in real world to telnet into them and manage them.
you know better than me that it is not the case here!)
2.the RDS Virtualization hosts are using their wifi card as the card for the virtual switch. could that be the reason? I even disabled their unplugged wired NIC just to make sure that the wifi is the only available option for the RDS wizard to use for the
virtual switch creation; but it didn't use it and it didn't create any virtual switch automatically.
3.if WIFI nic is indeed the reason, is it your suspension or an official documents is there somewhere stating so (that the WIFI NICS on a Virtualization hosts are not supported as the hub for a virtual switch).
4.what are the properties of the virtual switch the RDS requires? does it have to be external? why can't it work even with my manually created external switch?
5.how would I fix it?
P.S: the environment is made up of 2 laptops, having windows 2012 R2 trial installed on them, using their wifi to connect to the out world. no cable is plugged into their wired NIC card.

Hi,
Thank you for posting in Windows Server Forum.
The simplest short term solution was to connect each computer to a small switch that had no other connectivity. This brought up the link light on the external NIC and allowed the creation of the collection to complete. You need to use an external switch. You
can create one external switch which might fix the problem.
Please check below article for information.
VDI Deployment Error About Virtual Switch
In addition please referthis article for information regarding virtual switch.
Hope it helps!
Thanks.
Dharmesh Solanki
TechNet Community Support

2012 R2 Hyper-V Virtual Switch Refuses to Be Created -- Error Messages Not Especially Helpful

Windows Servers 2012 R2 Standard
4 NICs
Windows 8.1 is guest of the host
Hyper-V
Virtual Switch Manager
External
Create Virtual Switch
External network
Choose a NIC that is connected to the physical Ethernet switch but otherwise unused
Tick Allow management operating system to share this network adapter
Untick everything else
Click Apply
"Error applying Virtual Switch Properties changes"
"Failed while adding virtual Ethernet switch connections."
"External Ethernet adapter "<name-of-adapter>" is already bound to the Microsoft Virtual Switch protocol."
Close
Cancel
Control Panel\Network and Internet\Network Connections
Change Properties of NIC to untick Virtual Switch protocol
Repeat steps as above
"Virtual Switch Manager for <name-of-server>"
"Error applying Virtual Switch Properties changes"
"An internal error occurred while processing the results of creating a new virtual switch."
"To refresh the results, close and then reopen this window."
Close
Dead in the Water
An internal error occurred while processing the results of creating a new virtual switch. To refresh the results, close and then reopen this window.
The first one is to use a tool called “nvspscrub.js”. Download nvspscrub.js then from cmd run: “cscript nvspscrub.js”, this will delete all vswitches, virtual NICs in the parent partition and will unbind the switch protocol from all physical NICs.
This script aborts when a class turns up undefined. Maybe this old script applies solely to Windows Server 2008. Dunno.
NVSPbind
What I do now?
It is an internal error. Internal to what?
MARK D ROCKMAN

Hi Mark,
I just came across the same issue!
After troubleshooting, I deleted all my Virtual Switches and reinstalled my WiFi and Ethernet NIC drivers.
I'm now able to create the Virtual Switches without error.
Hope this helps.
Regards
Lee

Removal of Virtual Switch Logical Networks

Hi,
I've recently managed to get SCVMM 2012 R2 up and running and it's currently managing 2 hosts in a cluster. I've migrated both hosts onto a logical switch, and I'm now at the stage where I'm ready to delete the LN's created for the per-host switches. I've
deleted the Virtual Switches and deleted the VM Networks associated with the switches successfully, but when I go to delete the LN's associated with the Virtual Switches, I get a 25100 error.
In dependencies, it shows that each LN has one of the hosts as a dependency but when I log into the hosts, there's nothing to indicate that they're in use. Is there any way to fix this or do I need to manually delete them from the database?
Cheers,
Ed

Hi Sir,
>>In dependencies, it shows that each LN has one of the hosts as a dependency
If you mean this :
Please open the hosts' properties then check the hardware option and uncheck the "logical network connectivity":
Best Regards,
Elton Ji
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected] .

Poor network when create virtual switch in hyper-v 2012

Hello,
i installed on DELL R620 windows server 2012 STD and add the hyper-v role
when i created a virtual switch , the speed of network in the HOST( the server itself) is ver poor ( copy file from fileserver is 300Kbs)
when i remove the virtual switch , the speed of the network is better( copy file from fileserver is 10-20Mbps)
i spoke with DELL support center , and after check up , no problem has found.
i tried all the chnges with the offload checksum etc but nothing helped
Please your comment about this issue
Thanks
Dotan

Need some additional information
Which Team type are you utilizing?
Which Raid Controller are you using on the hosts?
I would suggest you try this as well while its specific to 10Gb CNA's it can help with 1Gb in some cases. SMB
FILE COPY PERFORMANCE
Also utilizing the low latency Bios settings can often offer additional NIC performance
Dell 12th Gen Low Latency Bios Settings
-Sean

Using NIC Teaming and a virtual switch for Windows Server 2012 host networking and Hyper-V.

Using NIC Teaming and a virtual switch for Windows Server 2012 host networking!
http://www.youtube.com/watch?v=8mOuoIWzmdE
Hi thanks for reading. Now I may well have my terminology incorrect here so I will try to explain as best I can and apologies from the start.
It’s a bit of both Hyper-v and Server 2012R2.
I am setting up a lab with Server 2012 R2. I have several physical network cards that I have teamed called “HostSwitchTeam” from those I have made several Virtual Network Adaptors such as below
examples.
New-VMSwitch "MgmtSwitch" -MinimumBandwidthMode weight -NetAdaptername "HostSwitchTeam" -AllowManagement $false
Add-VMNetworkAdapter -ManagementOS -Name "Vswitch" -SwitchName "MgmtSwitch"
Add-VMNetworkAdapter -ManagementOS -Name "Cluster" -SwitchName "MgmtSwitch"
When I install Hyper-V and it comes to adding a virtual switch during installation it only shows the individual physical network cards and the
HostSwitchTeam for selection. When installed it shows the Microsoft Network Multiplexor Driver as the only option.
Is this correct or how does one use the Vswitch made above and incorporate into the Hyper-V so a weight can be put against it.
Still trying to get my head around Vswitches,VMNetworkadapters etc so somewhat confused as to the way forward at this time so I may have missed the plot altogether!
Any help would be much appreciated.
Paul
Paul Edwards

Hi P.J.E,
>>I have teams so a bit confused as to the adapter bindings and if the teams need to be added or just the vEthernet Nics?.
Nic 1,2
HostVMSwitchTeam
Nic 3,4,5
HostMgmtSwitchTeam
>>The adapter Binding settings are:
HostMgmtSwitchTeam
V-Curric
Nic 3
Nic 4
Nic 5
V-Livemigration
HostVMSwitch
Nic 1
Nic 2
V-iSCSI
V-HeartBeat
Based on my understanding of the description , "HostMgmtSwitchTeam and
HostVMSwitch " are teamed NIC .
You can think of them as two physical NICs (do not use NIC 1,2,3,4,5 any more , there are just two NICs "HostMgmtSwitchTeam and
HostVMSwitch").
V-Curric,
V-Livemigration , V-iSCSI ,
V-HeartBeat are just VNICs of host (you can change their name then check if the virtual switch name will be changed )
Best Regards
Elton Ji
We
are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
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Maximising throughput of a team in converged networking scenario using Hyper-V virtual switch

Hi,
Recently I have been looking into the converged network scenario, I have read quite a few resources about this but I am struggling to make sense of maximising the bandwidth I have available.
I understand that a single TCP stream can only go down 1 physical NIC, so even if I had a team of 6 x 1Gbps NICS – the team would be 6Gbps, but I will never have a single transfer go faster than 1 Gbps. I’m pretty sure that’s right, how I understood it anyway.
To make a converged network, I need to team adapters together, then make a virtual switch, and make virtual NIC’s off of that virtual switch. Each vNIC I can assign for different purposes,
such as ISCSI, data sync and backup traffic. In the diagram below I have shown this configuration, each green pNIC is only 1Gbps, on my blue vNICs I use the minimum weighting configuration.
In my example below, I have 1 ISCSI vNIC, if a physical NIC failed then I understand that to mean that the bandwidth won’t reduce for ISCSI because a single stream can only go down one
NIC anyway, the team will reduce to 5Gbps. No vNIC will go faster than 1Gbps.
If this is correct, then how would I increase bandwidth to the disk system using ISCSI, is it simply a case of creating an additional vNIC for ISCSI traffic, adding it to the same team
and configuring MPIO so the traffic will eventually end up through different pNICS? In my mind, MPIO can’t round robin ISCSI data to more physical NICs because the ISCSI and MPIO only know about the vNIC, I assume it is the team that ultimately handles the
placement of the stream onto the pNICS.
Do I simply do the same for Data Sync and Backup traffic?
I’m not too concerned about the VMNET team, I am mostly focused on getting the best out of the core cluster resources I have. I haven’t shown the physical switches to the right of the diagram,
but these are already configured to accept the VLAN traffic on the ports and the same is all configured for the other half of the solution.
Just a little confused over the whole thing on how I could potentially achieve the 6Gbps I have at my disposal. In this configuration and testing so far, it seems quite difficult for me
to exceed about 1.5-2Gbps combined across all the vNICS (in this particular test server I am limited to 1 physical disk so it’s hard to gauge the performance, the disk will take probably about 200MB/2Gbps maximum, that’s with ISCSI (file copying) and data
Sync going on between two servers at the same time.
many thanks for your help
Steve

Hi,
Recently I have been looking into the converged network scenario, I have read quite a few resources about this but I am struggling to make sense of maximising the bandwidth I have available.
I understand that a single TCP stream can only go down 1 physical NIC, so even if I had a team of 6 x 1Gbps NICS – the team would be 6Gbps, but I will never have a single transfer go faster than 1 Gbps. I’m pretty sure that’s right, how I understood it anyway.
To make a converged network, I need to team adapters together, then make a virtual switch, and make virtual NIC’s off of that virtual switch. Each vNIC I can assign for different purposes,
such as ISCSI, data sync and backup traffic. In the diagram below I have shown this configuration, each green pNIC is only 1Gbps, on my blue vNICs I use the minimum weighting configuration.
In my example below, I have 1 ISCSI vNIC, if a physical NIC failed then I understand that to mean that the bandwidth won’t reduce for ISCSI because a single stream can only go down one
NIC anyway, the team will reduce to 5Gbps. No vNIC will go faster than 1Gbps.
If this is correct, then how would I increase bandwidth to the disk system using ISCSI, is it simply a case of creating an additional vNIC for ISCSI traffic, adding it to the same team
and configuring MPIO so the traffic will eventually end up through different pNICS? In my mind, MPIO can’t round robin ISCSI data to more physical NICs because the ISCSI and MPIO only know about the vNIC, I assume it is the team that ultimately handles the
placement of the stream onto the pNICS.
Do I simply do the same for Data Sync and Backup traffic?
I’m not too concerned about the VMNET team, I am mostly focused on getting the best out of the core cluster resources I have. I haven’t shown the physical switches to the right of the diagram,
but these are already configured to accept the VLAN traffic on the ports and the same is all configured for the other half of the solution.
Just a little confused over the whole thing on how I could potentially achieve the 6Gbps I have at my disposal. In this configuration and testing so far, it seems quite difficult for me
to exceed about 1.5-2Gbps combined across all the vNICS (in this particular test server I am limited to 1 physical disk so it’s hard to gauge the performance, the disk will take probably about 200MB/2Gbps maximum, that’s with ISCSI (file copying) and data
Sync going on between two servers at the same time.
many thanks for your help
Steve

Routing of Network Traffic Between VLANs on a Hyper-V Virtual Switch

I am trying to discover how network traffic generated by reads and writes to RDVH User Profile Disks is routed through my network. I have a pool of Hyper-V
desktop vm’s in their own VLAN (vlan1) with their own NIC bound to a Hyper-V Virtual Switch. On the same server I have another management NIC for the OS on a different VLAN (vlan2) and finally on another server I have a virtual machine which hosts the User
Profile Disks. The VM that hosts the User Profile Disks is on the same VLAN as the management NIC for the OS (vlan2).
When tracing the flow of network traffic to and from the User Profile Disk VM it all comes through the vlan2 NIC on the server where the virtual
desktop VMs reside and nothing comes through the vlan1 NIC on this server. I would have expected the traffic to the virtual desktop VMs to come in through the desktop VMs VLAN NIC (vlan1).
This leads me to two possibilities as to how the desktop vm’s on vlan1 get their data to and from the User Pofile Disk vm on vlan2 without routing.
The desktop vm’s Hyper-V Virtual Switch automatically routes the User Profile Disk traffic from vlan1 to vlan2 internally using a virtual switch learning algorithm
Hyper-V itself handles all reads and writes to the User Profile Disks and since that is using the management NIC for the OS it is already on vlan2 and so the network traffic never leaves vlan2.
Any comments on the reason for traffic taking the path it does (as outlined above) as opposed to being layer-3 routed from VLAN1 to VLAN2?

Thanks for your reply Brian. I think your last paragraph above is what I have set up:
If you simply forward one VLAN to one physical NIC and the VMS on the corresponding External Virtual Switch simply end up on that VLAN without Hyper-V doing anything at all - but this dedicats one physical NIC per VLAN.
The Virtual Machines NIC that the vSwitch is patched to and the NIC for the OS are on different VLANS (both NICs are plugged into un-tagged ports on my switch).
The vNICs on the VM's are not tagged to a VLAN (The VLAN ID\ 'Enable virtual LAN identification' box is unticked)
My vSwitch is set up as connected to 'External Network' and isnt shared with the management network.
What I am trying to get at is how would network traffic on the VLAN my vm's are on get to the VLAN that the NIC for the OS is on without going through the router (even though a routable path is available) ?
Is it possible the 'learning algorithm' referneced in a Technet article below is involved here (sorry I cant post links)?
For the virtual machine to communicate with the management operating system, there are two options. One option is to route the network packet through the physical network adapter and out to the physical network, which then returns the packet back to
the server running Hyper-V using the second physical network adapter. Another option is to route the network packet through the virtual network, which is more efficient. The option selected is determined by the virtual network. The virtual network includes
a learning algorithm, which determines the most efficient port to direct traffic to and will send the network packet to that port. Until that determination is made by the virtual network, network packets are sent out to all virtual ports.
Thanks,
Andrew

Hyper-V Network Configuration Problem - Virtual Switch

Hi guys,
I'm looking for some help with a Hyper-V Network issues. I have been handed over a project by a client that is not fully complete and the person who built it is not available at all. The setup is a HP C7000 blade chassis and a HP SAN.
The previous guy built a hyper-v cluster with 2 nodes; HV1 & HV2 - this works fine, I can live migrate etc and all is good.
This is how it was handed over to myself, my job is to add the third node to the cluster so I have installed the OS, drivers etc. Hyper-V role and clustering role. My problem arises with the Hyper-V switch configuration.
Points;
Each node has two NIC adapters, both of these network adapters are teamed
A virtual switch is created on each node using the aforementioned NIC Team
On the existing nodes I can see the management IP for the node is set on the virtual switch adapter
On the third node (HV3) I created NIC Team using both of the NIC's, I then created an external virtual switch using this teamed network adapter. However when I try to apply a management IP address to the virtual switch adapter it won't respond and I see
a yellow triangle on the network adapter in the corner. When I remove the virtual switch and apply and IP address to the NIC Team the server is contactable and shows in the Cluster manager as up. However the problem then is I don't have a virtual switch.
If someone could help me with this that would be great - please tell me if you require further information.
Below is a screenshot of the adapter for HV1 (working fine) from failover cluster manager;
thank you advance :)

Hi Brian, thanks for the reply. This is what I tried initially. However I just restarted the server I tried it again - still no luck.
Just to clarify when I team together the two flexfabric network adapters and apply an IP address to the team for testing - the team works fine, so the team doesn't seem to be an issue.
Once I create the virtual switch and assign the team to the switch and enable management OS to share I apply the IP address to the vEthernet adapter and I can't ping the default gateway or anything for that matter.
Any other ideas ?

Hyper-V Network Virtual switches

Hi,
Good Day!
We have some doubts on Hyper-V Network Virtual Switches:
There are two physical NICs on a Hyper-V Host. One is connected to the public and other connects the internal VM Network. We create two virtual switches; "CustomerNetwork" and "PublicNetwork". "CustomerNetwork" has 192.168.x.x
series IP Address and "PublicNetwork" has a public IP Address.
We have also setup a software router VM with two virtual NICs. One vNIC connects to "CustomerNetwork" and other one connects to "PublicNetwork". We assign an IP address to the vNIC connected to "CustomerNetwork". The IP Address
assigned is 192.168.2.99.
Confusion here is that we don't know which IP Address we should assign to the VNIC of router VM which is connected to "PublicNetwork". We have only one public IP Address. Shall we assign public IP Address to the VNIC of Router VM or the "PublicNetwork"
virtual switch or we should remove the public IP Address from the virtual switch?
Thank you for your time for clarifying our doubts! As always, appreciate your help!
Thank You,
Aurther L

On your router VM , Public IP should be assigned to Public network . Beaaware you are only allowed one external switch per hyper V host. Alternatively Create two VNic from from Private network, Assign public IP to one and local IP to another
assuming you have internet connection on local network.
hope this helps
thanks
mumtaz

Cluster network name resource error 1196

I have a two-node Hyper-V 2012 Core Server cluster. Initially, the cluster was working fine and I was able to do live migrations with no problem. I first realized that something had gone wrong when I was attempting to move a VM's storage to the Cluster Disk.
When I right click on the VM and select Move > Virtual Machine Storage, the bottom left area of the "move storage" screen says "Loading..." forever and never displays the cluster storage. This happened once before and I was able to correct
the issue by taking the Server Name resource offline and doing More Actions > Repair. However, if I try a repair now I receive the following error messages:
"There was an error repairing the active directory object for 'Cluster Name'. Error Code: 0x800713b8. The cluster request is not valid for this object".
I have verified that the cluster name Active Directory object (CCSDCluster) still exists and each node as well as itself has full permissions to the object. What I am not certain of is whether the object is still in the same Organizational Unit as it was
originally. After the failed repair attempt, I am able to bring the Server Name resource back online successfully.
In addition, I am continually receiving cluster event errors indicating the following:
"Cluster network name resource 'Cluster Name' failed registration of one or more associated DNS name(s) for the following reason: The handle is invalid. Ensure that the network adapters associated with dependent IP address resources are configured
with at least one accessible DNS server."
Each of the two nodes has multiple NICs configured. One for management, one for guest OSs (Hyper-V virtual switch is configured to use this NIC and not allow management OS access), and two for iSCSI (for redundancy and multi-path). Live migration is set
to only use the management NICs. The management NIC on both nodes is configured with valid DNS servers. The CCSDCluster DNS entry has full permissions for both nodes and itself.
Any suggestions on what to try would be greatly appreciated. Thank you!

Could my issues be related to a problematic network configuration? Please see the ipconfig below from one of my Hyper-V host servers.
Ethernet adapter Ethernet 8 = iSCSI
Ethernet adapter Ethernet 6 = iSCSI
Ethernet adapter Ethernet 2 = Management interface
10.1.3.19 = Management IP address, 10.1.3.3 = IP address of Cluster Name Object
Tunnel adapter Local Area Connection *11 = ?? Not sure what this one is
Windows IP Configuration
Host Name . . . . . . . . . . . . : CCSDVM01
Primary Dns Suffix . . . . . . . : clairton.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : clairton.local
Ethernet adapter Ethernet 9:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP NC552SFP Dual Port 10GbE Server Adapter #4
Physical Address. . . . . . . . . : 28-92-4A-AF-46-34
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter Ethernet 8:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP NC552SFP Dual Port 10GbE Server Adapter #3
Physical Address. . . . . . . . . : 28-92-4A-AF-61-68
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 172.16.1.12(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.16.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Ethernet 7:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP NC552SFP Dual Port 10GbE Server Adapter #2
Physical Address. . . . . . . . . : 28-92-4A-AF-61-6C
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter Ethernet 6:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP NC552SFP Dual Port 10GbE Server Adapter
Physical Address. . . . . . . . . : 28-92-4A-AF-46-30
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 172.16.1.11(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 172.16.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Ethernet 3:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom BCM5709C NetXtreme II GigE (NDIS VBD Client) #55
Physical Address. . . . . . . . . : E4-11-5B-B9-3A-9C
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter Ethernet 2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Broadcom BCM5709C NetXtreme II GigE (NDIS VBD Client) #58
Physical Address. . . . . . . . . : E4-11-5B-B9-3A-A2
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 10.1.3.19(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
IPv4 Address. . . . . . . . . . . : 10.1.3.3(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.1.3.100
DNS Servers . . . . . . . . . . . : 10.1.3.10
10.1.3.39
NetBIOS over Tcpip. . . . . . . . : Enabled
Tunnel adapter Local Area Connection* 11:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Failover Cluster Virtual Adapter
Physical Address. . . . . . . . . : 02-AD-4B-6D-A9-FB
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv4 Address. . . . . . . . . . . : 169.254.2.92(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Enabled

SCVMM Virtual Switch Provisioning ignores "Inherit settings from the physical management adapter" setting

When provisioning a new Hyper-V hosting into SCVMM I have a situation occur that causes loss of management to the server, which really should not be happening. When I add a new host, I set the 'Virtual Switch' adding a new 'Logical Switch' as well as a 'Virtual
Network Adapter' for the management OS traffic.
The first NIC in the team is active and configured with correct static IP information, which is allowing VMM access to the server to perform these steps. The 'Virtual Network Adapter' has a checkbox in the 'This virtual network adapter inherits settings
from the physical management adapter.' option box.
From my understanding what should happen is when the virtual adapter is created on the host the IP information should move to the virtual adapter from the physical adapter that is now part of the NIC Team. What is actually happening is the NIC Team seems
to create OK, but it picks up a DHCP IP address instead of assuming the first physical NIC's IP information. I tried this with only one NIC as well as both NICs in the team to see what happens. Either case the same problem presents.
To get around this, what I did was sit on the console after I started the provisioning process. As soon as I saw Teamed NIC create I applied the static IP address via PowerShell manually to that Teamed NIC virtual adapter and then VMM just continued along
normally. It then moving the IP from the NIC Team adapter to the Hyper-V virtual adapter properly. I did get a warning back from the creation (below) which hints me to the problem.
The Error code details as 2147942465 which is a "Network Access Denied" code followed by "Error while applying physical adapter network settings to teamed adapter". So, this is telling me there was a permission issue of some sort during
the step of adding the original physical NIC IP settings to the virtual NIC.
The VMM Run As user 'HVAdmin' is a Local Administrator on the Hyper-V host, this has been verified. It has also been temporarily granted Administrator access on the domain to see if it helps. No go.
Searching around the net has now revealed this problem so far, has anyone else seen this? It makes provisioning a bit of a chore because I have to be at the Hyper-V console and on VMM at the exact same time to add a new host.

It's a workaround but this works best.
When initially configuring the host use a dedicated Nic.
Configure the new team with a management Vnic and assign the Vnic an IP.
Now disable the dedicated nic and you can start working the the team and the Vnic.
Gil Gross | Technical Lead | G-Net Network Solutions | www.g-net.co.il | plz visit my blog - gilgrossblog.wordpress.com

Virtual switch internet connection sharing problem

Greetings,
I am having a problem with sharing internet connection to virtual machine. I tried to create external virtual switch but without success. From time to time I got an error:
Error applying Virtual Switch Properties changes
An internal error occurred while processing the results of creating a new virtual switch. To refresh the results, close and then reopen this window.
but mostly the creation goes fine but after new virtual network device is created I can no longer access internet from Windows 8.1 nor VM as authentication fails (802.1x Secure W2 EAP-TTLS with certificate, username and password). The new device created
by virtual switch manager has authentication changed to Windows Protected EAP(PEAP) instead of original Secure W2 - even if I change it to original Secure W2 nothing happens - authentication still fails.
Sometimes when I try to change authentication settings of new or old NIC I got an error:
The changes to Authentication settings could not be saved
The virtual switch seems to have the same authentication settings as I have had on my NIC but from some reason it doesn't work.
If I am persistent enough I convince to install virtual switch by several attempts but it doesn't work - neither my server (windows 8.1) nor VM can connect to internet.
I hope it is not this:
http://social.technet.microsoft.com/Forums/windows/en-US/341cbe70-3fa7-4991-a7e4-4f1af63df4d0/windows-8-hyperv-8021x-eapol-request-missing?forum=w8itpronetworking
unsolved problem. If it is I am screwed :-/
Any advice how to fix this mess much appreciated...

1.Go to network connection, and find the Wireless network, right click at it.
I am connected by wire (RJ-45) not by WIFI. The cerificate is valid (trusted root certificate used by Secure W2 authentization - not the authentication type you have described).
The problem is in creation of external virtual switch - removed it also with the driver from device manager I installed (and removed) subsequently both motherboard manufacturer latest drivers for my integrated network card and also let windows detect it.
Finally I removed Hyper-V and did a clean installation of network adapter drivers. Then I enabled again Hyper-V role.
After several restarts I tried to create external switch and I was again in the same problems. Then I redid everything and tried to install virtual switch again but
I installed INTERNAL virtual switch instead of external.
External simply doesn't work for me and also destroys functional connections...
To be able to access internet from virtual machine a tried to create a bridge between the connections but then it simply didn't work again (neither could I access internet from host on which was Hyper-V running).
So what has after several trial and errors worked for me eventually - if you would like to have internet connection functional in Hyper-V VM you have to
create INTERNAL VIRTUAL SWITCH and share the original connection and it should then somehow work...

VM Activation problem when using Internal Virtual Switch mode

Hello,
I have setup Windows 2012 R2 Standard Version host machine. Hyper-V setup successful. Host machine already activate license.
I have got a problem is when VM connecting with Internal virtual Switch. It will not able to process Windows activation. If it connected using External Virtual Switch, it can successful do windows activation. However, using External Virtual
Switch, one more WAN IP will be used.
I am using ICS method to share the network interface to Internal Virtual Switch.
Is it what problem and how to resolve it?
Thanks!

Hi Gyorgy,
What is the version of your guest operating system? Why not we create an External Virtual switch to access Internet when using Hyper-V guest system? (Some reference if needed:Hyper-V Virtual Switch
Overview )
The network connection seems to be fine, if you mean the webpage can't be displayed through Internet Explorer, please take a look at the article below:
"Internet Explorer cannot display the webpage" error
For more information, please check:
Fixing "Page cannot be displayed"
Best regards
Michael Shao
TechNet Community Support

Windows 8.1 - Hyper-V Virtual Switch fails to create

I'm running into a problem with creating a new virtual switch on my Windows 8.1 RTM box. Frist time attempt at Hyper-V on this system.
The error I get is as follows:
Error applying Virtual Switch Properties changes
Failed while creating virtual Ethernet switch.
switch create failed, name= 'B57B7B7B-64314AF5-AB8F-4521CBAA9FFBA', friendly name = 'New Virtual Switch': The system cannot find the file specified. (0x80070002)
The steps I have taken to try and resolve this issue.
1. Uninstall and reinstall Hyper-V...numerous times - no change.
2. Uninstall Hyper-V, reboot, uninstall NIC, reboot, reinstall NIC, reboot, reinstall Hyper, reboot - no change.
3. Uninstall it all again. Get new NIC drivers, for ASUS Sabertooth 990FX, first gen. Reinstall it all again - no change.
4. Updated BIOS, and check for virtualization, and DEP are enabled. - no change.
5. User powershell to create virtual switch - no change.
6. Tried resetting Hyper-V networking using the netcfg commands posted
here, failed, file not found.
Any help to resolving this would be greatly appreciated.
Thank you,
Sean

Hi Dw3xx,
Unusual problem,my suggestion is :
uninstall any anti-virus software then try to create the virtual switch
insert Win8 media and fix OS
Hope this helps.
Elton Ji

Virtual switch networking in LDOM error

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