Networking load balancing - problem with backup network

The thing is, that if I setup hosts in cluster to use backup Network, the vitual IP and FQDN will not answer. If I utilize domain Network for clustering, it works okay. I´m not sure, what is the best way to configure it when using NLB. My backup Network
is configured to use different vLAN and tcp/ip settings have only IP and subnet mask. Gateway adress is not in use.
I have been playing with fail-over cluster which is different technology, and there backup Network is different from production Network, locating in different vLAN so the connector between 2 nodes is totally different that production/domain Network.
But with NLB, this seems not working.

Hi yannara,
Please offer us more information about your environment, such as are your using the virtualization environment? What your server edition you are using, what backup software
you are using。
Please refer the following related article and similar thread to check whether you have choose the specific interface.
Windows Server 2008 R2 NLB with multiple NIC and multi subnet.
http://social.technet.microsoft.com/Forums/windowsserver/en-US/fbfcb496-44d3-4050-bb92-34f4cc808f57/windows-server-2008-r2-nlb-with-multiple-nic-and-multi-subnet
Balancing Act: Dual-NIC Configuration with Windows Server 2008 NLB Clusters
http://blogs.technet.com/b/networking/archive/2008/11/20/balancing-act-dual-nic-configuration-with-windows-server-2008-nlb-clusters.aspx
I’m glad to be of help to you!
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are trying to better understand customer views on social support experience, so your participation in this
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Similar Messages

Load Balancing Problem with WLS6.1

          Hi,
          I have 4 Instances of Weblogic servers two instance per box with Clustered. The
          admin server is running in the first box. While stress testing it seems all the
          loads are going to one instance and other instances are almost idle.
          In the Secondary Group, i have given the name of the other instance on the same
          server. I'm running weblogic in Solaris with SP3.
          Can anyone suggest why loadbalancing doesn't work.


Typically, load balancing will work unless there is a problem with the
          clusters seeing each other. Therefore first make sure that the managed
          server has joined the cluster.
          Other things to look at are the __WebLogicBridgeConfig (see WLS plugin
          documents) to confirm that there is a primary and secondary.
          The above assumes Servlet load balancing, for objects check the
          deployment descriptors.
          Diwan Mohideen wrote:
          >
          > Hi,
          >
          > I have 4 Instances of Weblogic servers two instance per box with Clustered. The
          > admin server is running in the first box. While stress testing it seems all the
          > loads are going to one instance and other instances are almost idle.
          >
          > In the Secondary Group, i have given the name of the other instance on the same
          > server. I'm running weblogic in Solaris with SP3.
          >
          > Can anyone suggest why loadbalancing doesn't work.

Load balancing problem with CSS11503

Hello all,
We have two web servers that are being load balanced with this configuration on two CSS11503 with IOS version 7.20 Build 206;
content Web
add service web1
add service web2
vip address 10.1.4.4
protocol tcp
port 80
url "/*"
advanced-balance sticky-srcip-dstport
active
When we try and access the web servers from client workstation using the URL on Internet explorer 6.0 and get authenticated through the login window; we get error 12031. Error 12031 means " ERROR_INTERNET_CONNECTION_RESET The connection with the server has been reset. "
On refresh the error goes away.
If we bypass the content switches by accessing any of the servers using server name; the error does not appear. The problem seems to be related to the load balancing.
Any suggestions?

the problem is probably due to CSS sending an HTTP redirect with the RESET flag when you send multiple request inside the same connection.
To avoid the proble, do a 'no url' under your content rule.
There is absolutely no need to specify the url since you do stickyness based on source ip address.
Regards,
Gilles.

Bug with Network Load Balancing Services and SkipAsSource always reverting to true

Steps to reproduce:
Add an IP address to the cluster (2 nodes running Windows Server 2012) using the Network Load Balancing Manager
Using PowerShell set the SkipAsSource flag on the IP Address to true (Set-NetIpAddress -IpAddress 192.168.1.10 -SkipAsSource $true). The flag is correctly set.
Try to reverse the setting (Set-NetIpAddress -IpAddress 192.168.1.10 -SkipAsSource $false). Flag stays as true.
It appears as though Network Load Balancing Services is remembering the setting from someone.
Things I've tried all without success (in no particular order):
Removing the IP address from the cluster and adding it back in
Using PowerShell to remove the IP address and add it back in manually (on each host).Flag stays set as true on the 1st node but takes a second before it reverts back to true on the 2nd node.
Using netsh to remove the IP address and add it back in manually (on each host). Flag stays set as true on the 1st node but takes a second before it reverts back to true on the 2nd node.
Deleting each host from the cluster (one at a time), removing the registry keys CurrentControlSet\Services\WLBS and
Removing both hosts from the cluster
Restarting the hosts
Using processmon (sysinternals) to try and find a registry entry that might be set when SkipAsSource is set
Does anyone know:
How to resolve this issue? I'm guessing resetting the TCP/IP stack would work but that's a last resort as it requires an on sight visit to the datacentre.
Where the SkipAsSource flag it stored?
How to reset the master/global cluster config?
Thank in advance,
Antony

Hi Antony,
I am trying to involve someone familiar with this topic to further look at this issue.
There might be some time delay. Appreciate your patience.
Best Regards.
Steven Lee
TechNet Community Support

Multicast not working with Window2K Network Load Balancing.

I'm using W2K Network Load Balancing (WBLB) for our cluster machines (2
          boxes) to load balance between IIS (one IIS instance on each box). Each IIS
          instance is a proxy to the weblogic cluster (one app server instance on each
          box). Currently I only have a single network card configured for each box,
          so I have had to enable multicast support for the WNLB. But if I do this
          I'm unable to get multicasting working correctly for the weblogic cluster.
          When I run the multicast tester (utils.MulticastTest) one box is able to
          receive multicast messages from both boxes, but the other box is only
          receiving multicast messages from itself (but not the other box). Does
          anyone have any experience with configuring weblogic clustering on machines
          with WNLB also configured?
          Thank you.
          Marko.


Hi
NLB return traffic for UDP would come from the node IPs.
You could use NAT on your firewalls so they come from the same public IP.
Otherwise you'd be looking at something other than MS NLB.
Cheers
GF

Hyper-V 2012 R2 & NLB (Network Load Balancing) with Unicast on VMs

Hi,
We set up a 2012 R2 Hyper-V Cluster. On this Cluster we would like to run 2 VM's which are using NLB (Network load Balancing) in Unicast mode.
We have created a External Virtual Switch wich is connected trough a 3x10GB LACP Team to a Cisco Nexux Switch.
We have tried to set the NLB up in the way we did with 2008 R2 but we were not be able to get this working. Is there any Change in 2012 R2 we did not think about?
Each time we form the Cluster one Node becomes unavailable.
Timo

Check the virtual network adapter properties - you must enable MAC address spoofing. We had the same issues.
Note that this will absolutely pollute your host machine's system log with tons of spam and make it pretty much worthless. I'm trying to find a way around this as we speak, actually.

Host Unreachable intermittently within a Windows Network Load Balancing Cluster

Hi,
We have 2 Windows 2008 R2 servers running multiple IIS web sites and load balanced across Windows Network Load Balancer in unicast mode. Although there are two interfaces in each server, only 1 interface in each server participates in load balancing and
other interface is used for a different backup LAN. The problem I am going to mention was not seen within the NLB for almost 1 year.
I have noticed intermittent "host unreachable" detected from NLB in each host from time to time since 3 weeks ago. After servers are rebooted, both hosts can be reached and can be detected from NLB manager. However it becomes unreachable in both
servers within minutes and then becomes reachable again after several minutes. This behavior is noticed in the load balancer and pings do not work between the two hosts when the issue occurs. I did a packet capture to see what was going on with ARP message
when the issue occurs. ARP entry goes missing in each server when the problem occurs and no ARP replies are returned from each server. But ARP requests are dispatched from both servers when the issue occurs. ARP replies come back after sometime after which
hosts become reachable again.
I tried to create a permanent static ARP entry (By copying the MAC address from ARP table when the two hosts are reachable) in each host but that hasn't solved the issue either. It seems like the individual MAC address generated by each host is a virtual
one and it doesn't seem to respond when the problem occurs.
However load balancing and web sites are fully functional without any issues even while "host unreachability" issue is detected.
Appreciate if someone could help me to dig the real problem out.
Thank you.

Hi,
Did you do some change of your network or the NLB firewall settings recently?
If you are using the NLB cluster in Hyper-V guest vm you need to enable the spoofing of MAC address.
The related article:
Cannot access the virtual or dedicated IP address of an NLB node (Guest) running in Unicast Mode on Windows Server 2008 R2 Hyper-V
http://blogs.technet.com/b/networking/archive/2010/02/12/cannot-access-the-virtual-or-dedicated-ip-address-of-an-nlb-node-guest-running-in-unicast-mode-on-windows-server-2008-r2-hyper-v.aspx
More information:
Selecting the Unicast or Multicast Method of Distributing Incoming Requests
http://technet.microsoft.com/en-us/library/cc782694(v=ws.10).aspx
Single network adapter
http://technet.microsoft.com/en-us/library/cc776178(v=ws.10).aspx
Hope this helps.
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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.
Thanks for helping make community forums a great place.

Windows Server 2012 R2 - ADFS/Windows Network Load Balancing Converging Issue

Hello,
My name is Brandon. We have started upgrading our servers to Windows Server 2012 R2. We have some powerful servers for running ESXI 5.5 as the OS with the Guest Operating Systems as Windows Server 2012 R2. As far of our migrations/upgrades we have configured
ADFS 2012 R2 into a Server Farm with Windows Network Load Balancing to add redundancy in the event a server goes down.
I have been having issues with a Node with the Cluster getting stuck in the Status of Converging. The only way I have been able to get it back up is to restart the virtual server completely and it is temporary. When I first configure the Cluster the two
virtual servers get added to the Node with no problems and fully converge. However, after some time a node will end up in Converging and this takes Authentication for ADFS down as the nodes can not be contacted over Port 443.
Error: Host: server.domain.com Unable to connect to "server name"
System
Provider
[ Name]
Microsoft-Windows-NLB
[ Guid]
{F22AF71F-C4C3-425D-9653-B2F47B85DD30}
EventID
21
I have tried using 1 & 2 Virtual NICs on the machines and still end up with communication issues. Could someone assist me with why I am having this issue? This is not an issue with a firewall. If it was a firewall it would never communicate the first
time. Has anyone had experience with a similar configuration and how were you able to make it work?
Below is my configuration.
Static ARP Entry for Cluster IP Address has been added to our Layer 3 switch.
Physical Server 1:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.5
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 1 (Guest OS)
Physical Server 2:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.6
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 2 (Guest OS)
Virtual Servers
Virtual Server 1
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE 2
VIRTUAL NETWORK ADAPTERS
VNIC1 IP ADDRESS 192.168.0.10
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.11
SUBNET: 255.255.255.0
Virtual Server 2
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE 2
VIRTUAL NETWORK ADAPTERS
VNIC1
IP ADDRESS 192.168.0.20
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.21
SUBNET: 255.255.255.0
Cluster Configuration/Properties
CLUSTER PROPERTIES CLUSTER IP: 192.168.0.30
CLUSTER SUBNET: 255.255.255.0
FULL INTERNET NAME: FS.DOMAIN.COM
CLUSTER OPERATION MODE: MULTICAST
PORT RULES:
CLUSTER IP ADDRESS
START
END
PROTOCAL
MODE
PRIORITY
LOAD
AFFINITY
ALL
80
80
BOTH
MULTIPLE
EQUAL
NONE
ALL
443
443
BOTH
MULTIPLE
EQUAL
NONE
CLUSTER NODES:
1.) SERVER1.DOMAIN.COM
a. IP: 192.168.0.11
2.) SERVER2.DOMAIN.COM
a. IP: 192.168.0.21

Hi,
According to your description, my understanding is that：2 ESXI 5.5 physical devices (192.168.0.5 and 192.168.0.6), each of them has a virtual WS 2012 R2(192.168.0.10 and 192.168.0.20). Cluster the 2 virtual servers successfully, but they corrupt with event
ID 21, and a restart of virtual device will resolve this problem temporarily.
Event ID 21 means that NLB failed to converge due to inconsistencies in the port rules between this host and cluster host. This will occur if the number of port rules or the type of port rules are different between hosts.
Ensure that all NLB hosts have identical port rules. Detailed steps you may reference:
Event ID 21 — NLB Port Rules Configuration
https://technet.microsoft.com/en-us/library/dd364034%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396
Best Regards,
Eve Wang
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 Support, contact
[email protected]

Windows Server 2012 R2 - Windows Network Load Balancing Converging Issue

Hello,
My name is Brandon. We have started upgrading our servers to Windows Server 2012 R2. We have some powerful servers for running ESXI 5.5 as the OS with the Guest Operating Systems as Windows Server 2012 R2. As far of our migrations/upgrades we have configured
ADFS 2012 R2 into a Server Farm with Windows Network Load Balancing to add redundancy in the event a server goes down.
I have been having issues with a Node with the Cluster getting stuck in the Status of Converging. The only way I have been able to get it back up is to restart the virtual server completely and it is temporary. When I first configure the Cluster the two
virtual servers get added to the Node with no problems and fully converge. However, after some time a node will end up in Converging and this takes Authentication for ADFS down as the nodes can not be contacted over Port 443.
Error: Host: server.domain.com Unable to connect to "server name"
System
Provider
Name]
Microsoft-Windows-NLB
Guid]
{F22AF71F-C4C3-425D-9653-B2F47B85DD30}
EventID
21
I have tried using 1 & 2 Virtual NICs on the machines and still receive this error even if only 1 VNIC is assigned to the virtual machine. Could someone assist me with why I am having this issue? Has anyone had experience with a similar configuration
and how were you able to make it work?
Below is my configuration.
Static ARP Entry for Cluster IP Address has been added to our Layer 3 switch.
Physical Server 1:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.5
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 1
Physical Server 2:
ESXI 5.5 HOST
1 NIC CONNECTED (shared with virtual guest)
IP ADDRESS: 192.168.0.6
SUBNET: 255.255.255.0
DGW: 192.168.0.1
Virtual Server 2
Virtual Servers
Virtual Server 1
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE
2 – VIRTUAL NETWORK ADAPTERS
VNIC1
IP ADDRESS 192.168.0.10
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.11
SUBNET: 255.255.255.0
Virtual Server 2
MS SERVER 2012 R2 (VIRTUAL)
NLB NODE
2 – VIRTUAL NETWORK ADAPTERS
VNIC1
IP ADDRESS 192.168.0.20
SUBNET: 255.255.255.0
DGW: 192.168.0.1
VNIC 2 (NLB)
IP ADDRESS: 192.168.0.21
SUBNET: 255.255.255.0
Cluster Configuration/Properties
CLUSTER PROPERTIES
CLUSTER IP: 192.168.0.30
CLUSTER SUBNET: 255.255.255.0
FULL INTERNET NAME: FS.DOMAIN.COM
CLUSTER OPERATION MODE: MULTICAST
PORT RULES:
CLUSTER IP ADDRESS  START END PROTOCAL MODE   PRIORITY LOAD  AFFINITY
ALL    80 80 BOTH  MULTIPLE  ..  EQUAL  NONE
ALL    443 443 BOTH  MULTIPLE  ..  EQUAL  NONE
CLUSTER NODES:
1.) SERVER1.DOMAIN.COM
a. IP: 192.168.0.11
2.) SERVER2.DOMAIN.COM
a. IP: 192.168.0.21

Thank you for your response. It took me a while to figure it out, but the whole issue was related to the type of Virtual Network Adapter I was selecting.
I changed the network adapter from E1000 to VMXNET 3 and have not had a single error in the event logs or Windows NLB.
I read somewhere that VMXNET 3 is preferred for Windows Server 2012 R2.
https://communities.vmware.com/thread/433792
Leyuka       May 23, 2013 6:14 AM
"Just a help for everyone with this problem :
After 10 days of research for our virtual datacenter behind a vcloud as iias , i found a solution .
I only run windows 2012 server .
Install vmware tools , remove e1000 network card after a vm stop, add a card same vswitch etc BUT with a vmxnet3 TYPE . DONT USE DEFAULT CARD
Start and enjoy this solution . E1000 and E1000e are just unstable in windows8 / windows 2012 , the network card reset randomly with or without heavy IO. No log in windows , and as a vcloud user i don"t have esxi logs (damn i don't like cloud) and provider
don"t know why ..."

Network Load Balancing for AFP Sharing

Dear all,
Anyone can kindly teach me how can I configure network load balancing with 2 xserve?
Currently I success to bond 6 ethernet port with a virtual IP in a single machine and I have a link aggregation setup in my switch. It works fine.
How to configure 2 xserve with 6 ethernet port per each to have a single virtual IP?
my switch do not support link aggregation with a virtual IP to do the load balancing so I just can consider to do it in software level.
Anyone know whether OS Leopard/Snow Leopard can do it? Or any suggestion for 3rd party software can perform this?
Thanks expert!
Karl

It sounds like you need a load balancer. There's nothing built-in to Mac OS X Server that's going to support one virtual IP address shared across multiple physical servers.
Your problem, though, is likely to be one of throughput - I don't know any cheap load balancers that will sustain that kind of throughput, so you may be looking at some serious $$$$s.
There are some software-based load balancers that might be able to handle the load balancing side of things but many of them are designed around HTTP so might not work so well for other protocols.
In addition, the software load balancer is going to suffer the same bottleneck as your AFP server, but doubly so - two servers with 6 x 1gbps links each you have a theoretical limit of 12gbps.
To run that through a load balancer, the load balancer will need double that - 12gbps for the client-side, plus 12gbps for the server side. In reality you're probably looking at needing 10gbps interfaces and switches if you're really pulling that much bandwidth.

Acrhitecture of network load balancing solution

i'm working on a setup that will transition our existing data center setup to a network load balancing solution. i'm far from understanding what components to use and how to approach the problem so any help would be very welcome. here is what we currently have:
1. 3 web servers (serverA, serverB, serverC)
2. 1 sql server
3. 2 layer two unmanaged switches
4. 1 cisco firewall
each one of the web servers runs a dedicated web app. what i would like is to replace serverA with a NLB cluster of 3 servers and replace serverB with another NLB cluster of 3 servers. serverC is not getting that much usage and it can stay as is.
i have looked at possible solution with Windows Server 2008 NLB and it seems that the best way to do it would be using multicasting which requires upgrading out switches. at the same time if would much more prefer to use hardware load balancing than Windows Server. so i looked at Cisco ACE 4710 appliance. however it seems that some of the cisco switches will also do load balancing. now i'm completely confused whether to upgrade the switches and use them for load balancing or use the ACE appliance. i would appreciate any advices and suggestions. also, any recommendations on breaking up the network using VLANs - if it is necessary with either one of the solutions or if there is some benefit. i guess i'm looking for a "best practices" solution...
any links or documents would be very welcomed.
thanks.

thanks for your response. i think i'm going with ace 4710. now, as far as vlans go why would i need internet, dmz and internal vlan in my datacenter? i understand that this may be a bit off topic but what is really bugging me is this: with the current setup all of the web servers have 2 nics - one with public IP and one with private IP. same goes with the sql server. on web servers nics with private IPs are used for communicating with the database server. they could very well communicate using nics with public IPs but the person that set this up (i recently inherited it) was convincing me that with the existing setup "public" nics are not burdened with communication between web servers and database server. is this "correct" way of doing it?

Network Load Balancing - Multicast IPv6

I have a two servers with network load balancing. They are configured to use IGMP Multicast which works well with IPv4. The switch correctly detects the group and sends the traffic to only the ports connected to the servers.
However i can't get IPv6 working outside of the servers subnet. You can access the loadbalanced IPv6 address from within the servers subnet but machines outside the subnet cannot access it.
Does load balancing properly support IPv6? Should it not support Multicast Listerner Discovery (MLD) to work properly with IPv6?
Thanks

Thanks for your reply.
Yes - you are correct. We are using an IPv6 address as the cluster IP address for incoming connections but it can't be access outside of the subnet. The cluster has both a link-local and global address - both are only accessible from within the subnet.
The two servers that are part of load balancing cluster both have IPv6 address assigned to their network adapters - these are accesible outside the subnet. Infact 80% of all our network traffic is IPv6 - routing is working fine between all servers, workstations
and devices on our various subnets. The problem is purley affecting the load balancing IPv6 address.
The IP config and route tables are below. Thanks for your help.
Regards, Daniel
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
M:\>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : indium
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . :
Ethernet adapter Public:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Ada
pter
Physical Address. . . . . . . . . : 00-15-5D-CA-6C-04
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:630:34:1010::42(Preferred)
IPv6 Address. . . . . . . . . . . : 2001:630:34:1010::40(Preferred)
Link-local IPv6 Address . . . . . : fe80::4c7b:41a3:be85:e6c4%10(Preferred)
Link-local IPv6 Address . . . . . : fe80::95f6:2da7:dcdb:1fc1%10(Preferred)
IPv4 Address. . . . . . . . . . . : 10.0.0.42(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.252.0
IPv4 Address. . . . . . . . . . . : 10.0.0.40(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.252.0
Default Gateway . . . . . . . . . : 2001:630:34:1010::1
10.0.0.1
DHCPv6 IAID . . . . . . . . . . . : 234886493
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-D0-9F-CD-00-15-5D-01-14-35
DNS Servers . . . . . . . . . . . : 2001:630:34:1010::10
2001:630:34:1010::8
10.0.0.10
10.0.0.8
NetBIOS over Tcpip. . . . . . . . : Disabled
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
M:\>ipconfig /all
Windows IP Configuration
Host Name . . . . . . . . . . . . : aluminium
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . :
Ethernet adapter Public:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Ada
pter
Physical Address. . . . . . . . . : 00-15-5D-01-37-04
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:630:34:1010::43(Preferred)
IPv6 Address. . . . . . . . . . . : 2001:630:34:1010::40(Preferred)
Link-local IPv6 Address . . . . . : fe80::95f6:2da7:dcdb:1fc1%10(Preferred)
Link-local IPv6 Address . . . . . : fe80::fcab:aeb9:175d:9994%10(Preferred)
IPv4 Address. . . . . . . . . . . : 10.0.0.43(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.252.0
IPv4 Address. . . . . . . . . . . : 10.0.0.40(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.252.0
Default Gateway . . . . . . . . . : 2001:630:34:1010::1
10.0.0.1
DHCPv6 IAID . . . . . . . . . . . : 234886493
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-14-BF-55-42-00-15-5D-01-13-45
DNS Servers . . . . . . . . . . . : 2001:630:34:1010::10
2001:630:34:1010::8
10.0.0.10
10.0.0.8
NetBIOS over Tcpip. . . . . . . . : Disabled
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
M:\>route print
IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
10 261 ::/0 2001:630:34:1010::1
1 306 ::1/128 On-link
10 261 2001:630:34:1010::/64 On-link
10 261 2001:630:34:1010::40/128 On-link
10 261 2001:630:34:1010::42/128 On-link
10 261 fe80::/64 On-link
10 261 fe80::4c7b:41a3:be85:e6c4/128
On-link
10 261 fe80::95f6:2da7:dcdb:1fc1/128
On-link
1 306 ff00::/8 On-link
10 261 ff00::/8 On-link
===========================================================================
Persistent Routes:
If Metric Network Destination Gateway
0 4294967295 ::/0 2001:630:34:1010::1
===========================================================================

Time Machine and "might be a problem with your network"

Hi! My Power Mac is from 2008, and I'm in the middle of replacing my hard drive. Here's a summary of what I've gone through, including various trouble shooting...
OK, the hard drive dies (all of which I wrote about in an earlier thread and, I think, not very relevant for this thread). While waiting to buy my replacement, I created an external bootable drive, hooked up via FW800. I created a new User Account, and then I used the Migration Assistant to bring in all the user settings, files, etc, from my Time Machine. It took many hours and and during the stage when it was transferring files, it gave me the prompt: "There might be a problem with your network. The other Mac is not responding. Make sure that all of your network devices are connected and turned on. Also, make sure that your Ethernet cables are still connected properly to your computer and to the network, or if using AirPort, that the base station is in range and turned on." After clicking "Continue" got me nowhere, I clicked Cancel, and it was a very incomplete migration [no apps, no files]. I didn't sweat this since this external drive is a temporary solution anyway.
Tonight I came home with the new internal drive, installed it, installed Leopard, and began the Setup Assistant. I got the same prompt as last night. NOTE: This time with Setup Assistant; last night was with Migration Assistant.
I notice from reviewing the boards that this Time Machine glitch seemed to happen a few years ago, in Leopard, and maybe hasn't happened since. But I haven't read a thread with a solution. (Maybe I missed it?)
A few things come to mind:
1. Could there be an issue with the fact that the computer is only 10.5 and many of the files/apps may have been installed when I was running 10.5.8? I'm just tossing that out there. For instance, what if I set up an initial User account, then updated the software to 10.5 and THEN used Migration Assistant to bring in the older account?
2. Soon, since I'm reinstalling Leopard, I'll get the prompt to use Setup Assistant, and this time I'll just select account settings and apps. I'll bring in the files manually, later. Since the progress window seems to get hung up during the file-transferring stage, maybe I'll have better luck if I skip that.
If anyone has any suggestions, man, I'd be way grateful!
Thanks!

"try trashing the timemachine.plist in your original user's Library>Preferences."
I didn't even get to that step. Here's what happened.
I went back to my original Admin account (the one I restored via Setup Assistant, from my Time Machine backup), and ran Migration Assistant again. I selected Applications only and when it gave me a prompt about the account name already existing. So, I created a new account name (TEMP 1, I called it).
All of my applications were restored.
Next, I tried it with all the files and folders. It didn't give me the duplicate name prompt this time. It copied all my flles and folders over.
Was it perfect? Well, a lot of the apps need some fresh registration and some upgrading, but I suppose that's to be expected. Or is it?
While I feel like this problem is in my rear-view mirror, I'm still interested in your suggestons for a Time Machine altenative.
Thanks again for your advice!

Network Load Balancing not failing over properly

I have 2 MS 2012 servers setup in a NLB unicast configuration, with 2 NICs each on the same subnet. When I take down the second server (and only the second server) the FQDN goes offline. Below are the ipconfigs for each server. Any help
would be greatly appreciated!
Ethernet adapter Data NIC 192.168.220.172:
   Connection-specific DNS Suffix . :
   Description . . . . . . . . . . . : Intel(R) I350 Gigabit Network
#4
   Physical Address. . . . . . . . . : 6C-3B-E5-B2-48-60
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.220.172(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.220.1
   DNS Servers . . . . . . . . . . . : 192.168.220.100
                                       192.168.200.10
   NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Cluster NIC:
   Connection-specific DNS Suffix . :
   Description . . . . . . . . . . . : Broadcom BCM57810 NetXtreme II
DIS VBD Client) #67
   Physical Address. . . . . . . . . : 02-BF-C0-A8-DC-AA
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.220.171(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   IPv4 Address. . . . . . . . . . . : 192.168.220.170(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.220.1
   DNS Servers . . . . . . . . . . . : 192.168.220.100
                                       192.168.200.10
   NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Data NIC 192.168.220.174:
   Connection-specific DNS Suffix . :
   Description . . . . . . . . . . . : HP FlexFabric 10Gb 2-port 533FLR-
r #54
   Physical Address. . . . . . . . . : A0-D3-C1-F6-96-08
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.220.174(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.220.1
   DNS Servers . . . . . . . . . . . : 192.168.220.100
                                       192.168.200.10
   NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Cluster NIC:
   Connection-specific DNS Suffix . :
   Description . . . . . . . . . . . : HP NC523SFP 10Gb 2-port Server Ad
   Physical Address. . . . . . . . . : 02-BF-C0-A8-DC-AA
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 192.168.220.173(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   IPv4 Address. . . . . . . . . . . : 192.168.220.170(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.220.1
   DNS Servers . . . . . . . . . . . : 192.168.220.100
                                       192.168.200.10
   NetBIOS over Tcpip. . . . . . . . : Enabled

Hi MS DEF,
A second network adapter is required to provide peer-to-peer communication between cluster hosts. Please isolate your heartbeat network. With unicast when cluster is connected
to a switch, incoming packets are sent to all the ports on the switch, which can cause switch flooding, please confirm you have setup your switch correct, you can refer the following Cisco Switch related unicast configuration.
The Cisco switch unicast related information:
How to configure Microsoft Network Load Balancing on two switches
https://supportforums.cisco.com/discussion/11918276/how-configure-microsoft-network-load-balancing-two-switches
More information:
Selecting the Unicast or Multicast Method of Distributing Incoming Requests
http://technet.microsoft.com/en-us/library/cc782694(v=ws.10).aspx
An Optimal Network Load Balancing (NLB) Configuration
http://blogs.technet.com/b/clint_huffman/archive/2007/10/08/an-optimal-network-load-balancing-nlb-configuration.aspx
Selecting the Unicast or Multicast Method of Distributing Incoming Requests
http://technet.microsoft.com/en-us/library/cc782694(v=ws.10).aspx
I’m glad to be of help to you!
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I cant connect with my imessage and facetime in my iphone; i already upload de i os 7.02 but the message still have it; it said that they have problem with the network; i reset the network and doesnt work

I cant connect with my imessage and facetime in my iphone; i already upload de i os 7.02 but the message still have it; it said that they have problem with the network; i reset the network and doesnt work

Hello, Toro Silva.
Thank you for visiting Apple Support Communities.
The steps in the section labeled Unable to activate FaceTime or iMessage with phone number and Apple ID after waiting 24 hours (iPhone only) of the article below, should help resolve the issue. Make sure to create a current backup prior to processing these steps.
iOS: Troubleshooting FaceTime and iMessage activation
http://support.apple.com/kb/ts4268
Cheers,
Jason H

Networking load balancing - problem with backup network

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