EU data center

I can not connect to my BC account, web mail, loading pages is mission impossible
What's going on?
I do not see any information on the BC Status
Do others have problems with the EU data center?
14:35:00 hours, the problem appears to be resolved
Message was edited by: terradomus

Hi,
There wasn't any noted EU related center issue of late.
However if you are still experiencing some troubles and nothing is noted on the status page please reach out to direct support so they can help confirm. If not related then they'll help investigate what could be causing within your site.
Kind regards,
-Sidney

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Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about how to plan, design, and implement Cisco Overlay Transport Virtualization (OTV) in your Data Center Network with Cisco experts Anees Mohamed Abdulla and Pranav Doshi.
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Hi Dennis,
    All those Layer 2 extension technologies require STP to be extended between Data Centers if you need to have multiple paths between Data Centers. OTV does not extend STP rather it has its own mechanism (AED election) to avoid loop when multiple paths are enabled. It means any STP control plane issue, we don't carry to the other Data Center.
    OTV natively suppresses Unknown Unicast Flooding across the OTV overlay. Unknown unicast flooding is a painful problem in layer 2 network and difficult to troubleshoot to identify the root cause if you don't have proper network monitoring tool.
   It has ARP optimization which eliminates flooding ARP packets across Data Center by responding locally with cached ARP messages. One of the common issues I have seen in Data Center is some server or device in the network sends continuous ARP packets which hits Control plane in the Aggregation layer which in turn causes network connectivity issue.
The above three points proves the Layer 2 domain isolation between data centers. If you have redundant Data Centers with Layer 2 extended without OTV, the above explained layer 2 issue which happens in one Data Center carries the same failure to the second data center which creates the question of what is the point of having two different Data Centers if we can not isolate the failure domain.
OTV natively supports HSRP localization with few command lines. This is a very important requirement in building Active/Active Data Center.
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http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9402/white_paper_c11-574984.html
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Windows server 2012 Data Center with VDI configuration error message ( The remote session was disconnected because there are no remote desktop license servers available)

Dears,
I have two windows server 2012 Data Center and I configured (Virtual Desktop Interface)VDI on it's.
All my clients connected on both of servers by used Remote Desktop sessions ,5 months since.
Currently,when the clients is connected on the both of servers they received the following error:
"The remote session was disconnected because there are no remote desktop license servers available to provide license"
Kindly note, I installed windows Licenses Server Data Center on the both of servers.
Regards.

Hi,
Please let us know if you have purchased RDS CALs and install it in your RD licensing server.
Also, on RD Session host servers, please make sure that you have specified the license mode and point them to the RD licensing server.
Remote Desktop Services Client Access Licenses (RDS CALs)
http://technet.microsoft.com/en-us/library/cc753650.aspx
RD Licensing Configuration on Windows Server 2012
http://blogs.technet.com/b/askperf/archive/2013/09/20/rd-licensing-configuration-on-windows-server-2012.aspx
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TechNet Community Support

Ask the Expert: Scaling Data Center Networks with Cisco FabricPath

With Hatim Badr and Iqbal Syed
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Remember to use the rating system to let Hatim and Iqbal know if you have received an adequate response.
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Hi Sarah,
Thank you for your question.
Spanning Tree Protocol is used to build a loop-free topology. Although Spanning Tree Protocol serves a critical function in these Layer 2 networks, it is also frequently the cause of a variety of problems, both operational and architectural.
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In addition, rooting the forwarding path at a single device results in suboptimal forwarding paths, as shown below, Although a direct connection may exist, it cannot be used because only one active forwarding path is allowed.
Virtual PortChannel (vPC) technology partially mitigates the limitations of Spanning Tree Protocol. vPC allows a single Ethernet device to connect simultaneously to two discrete Cisco Nexus switches while treating these parallel connections as a single logical PortChannel interface. The result is active-active forwarding paths and the removal of Spanning Tree Protocol blocked links, delivering an effective way to use two parallel paths in the typical Layer 2 topologies used with Spanning Tree Protocol.
vPC provides several benefits over a standard Spanning Tree Protocol such as elimination of blocker ports and both vPC switches can behave as active default gateway for first-hop redundancy protocols such as Hot Standby Router Protocol (HSRP): that is, traffic can be routed by either vPC peer switch.
At the same time, however, many of the overall design constraints of a Spanning Tree Protocol network remain even when you deploy vPC such as
1.     Although vPC provides active-active forwarding, only two active parallel paths are possible.
2.     vPC offers no means by which VLANs can be extended, a critical limitation of traditional Spanning Tree Protocol designs.
With Cisco FabricPath, you can create a flexible Ethernet fabric that eliminates many of the constraints of Spanning Tree Protocol. At the control plane, Cisco FabricPath uses a Shortest-Path First (SPF) routing protocol to determine reachability and selects the best path or paths to any given destination in the Cisco FabricPath domain. In addition, the Cisco FabricPath data plane introduces capabilities that help ensure that the network remains stable, and it provides scalable, hardware-based learning and forwarding capabilities not bound by software or CPU capacity.
Benefits of deploying an Ethernet fabric based on Cisco FabricPath include:
• Simplicity, reducing operating expenses
– Cisco FabricPath is extremely simple to configure. In fact, the only necessary configuration consists of distinguishing the core ports, which link the switches, from the edge ports, where end devices are attached. There is no need to tune any parameter to get an optimal configuration, and switch addresses are assigned automatically.
– A single control protocol is used for unicast forwarding, multicast forwarding, and VLAN pruning. The Cisco FabricPath solution requires less combined configuration than an equivalent Spanning Tree Protocol-based network, further reducing the overall management cost.
– A device that does not support Cisco FabricPath can be attached redundantly to two separate Cisco FabricPath bridges with enhanced virtual PortChannel (vPC+) technology, providing an easy migration path. Just like vPC, vPC+ relies on PortChannel technology to provide multipathing and redundancy without resorting to Spanning Tree Protocol.
Scalability based on proven technology
– Cisco FabricPath uses a control protocol built on top of the powerful Intermediate System-to-Intermediate System (IS-IS) routing protocol, an industry standard that provides fast convergence and that has been proven to scale up to the largest service provider environments. Nevertheless, no specific knowledge of IS-IS is required in order to operate a Cisco FabricPath network.
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– Frames are forwarded along the shortest path to their destination, reducing the latency of the exchanges between end stations compared to a spanning tree-based solution.
    – MAC addresses are learned selectively at the edge, allowing to scale the network beyond the limits of the MAC addr

When trying to start my Windows server 2008 R2 Data Center, I am getting "ramdisk device creation failed due to insufficient memory",

I have the following:-
VMWare workstation version 9 , with windows server 2008 R2 data center installed.
- I have installed the windows 2008 R2 inside the VM using an iso image.
- The host is windows 7.
I use to work well with the VM, but after adding a new VM to the same workstation . I start getting the following error when starting my old VM
ramdisk device creation failed sue to insufficient memory.
And on the windows boot manger screen they mentioned to :-
inset my windows installation dis and restart my PC.
click “repair your computer”
but not sure if this will fix the problem , baring in mind that the RAM assigned to the VM
is 24 GB & 80 GB hard disk.
The error is
Link.
so can any one advice what is causing this error?
Thanks

You might start by checking the RAM.
http://windows.microsoft.com/en-US/windows7/Diagnosing-memory-problems-on-your-computer
Regards, Dave Patrick ....
Microsoft Certified Professional
Microsoft MVP [Windows]
Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Please shed some light on Data Center design

Hi,
    I want you guys to recommend what the design should be. I'm familiar with HP blade system. Let me clarify the existing device.
1. HP Blade with Flex Fabric. It supports FCOE.
2. MDS SAN switch for the storage
3. Network Switch for IP network.
4. HP Storage.
    HP Blade has 2 interface types for IP Network(Network Switch) and Fiberchannel(SAN).
   What is the benifit for using Nexus switch and FCOE for my exising devices. What should be a new design with Nexus switch? Please guide me ideas.
THX
Toshi

Hi, Toshi:
Most of these chat boards have become quite boring. Troubleshooting OSPF LSA problems is old news. But I do pop my head in every now and then. Also, there are so many other companies out there doing exciting things in the data center. You have Dell, Brocade, Arista, Juniper, etc. So one runs the risk of developing a myopic view of the world of IT by lingering around this board for too long.
If you want to use the new B22 FEX for the HP c7000 blade chassis, you certainly can. That means the Nexus will receive the FCoE traffic and leverage its FCF functionality; either separate the Ethernet and FC traffic there, or create a VE-port instantiation with another FCF for multihop deployments. Good luck fighting the SAN team with that one! Another aspect of using the HP B22 is the fact that the FEX is largely plug and play, so you dont have to manage the Flex Fabric switches.
HTH

URGENT: QoS Design on Data Center MPLS - MediaNet Question...

Hello,
I am posting this in hopes I can get some guidance from anyone who has done this in the field. We have a large enterprise customer with 21 sites all around the world, they have Verizon MPLS and are experiencing QoS related issues on their WAN regarding Video/Voice. We have proposed remediating their network acccording to the Enterprise QoS SRND 3.3 and the new MediaNet SRND to account for Video and TP QoS (
http://www.cisco.com/en/US/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND_40/QoSCampus_40.html )
Here is the problem/question that was proposed in our presales meeting and I honestly don't know where to look for an answer... I am not asking for anyone to design a solution for me, just merely point me in the right direction:
The Data Center has a ~40MB MPLS Connection ( full mesh ) into the cloud ( Verizon )
Site A has a 8MB connection
Site B has a 4MB connection
I know on the Service policy and the interfaces at SiteA and SiteB I can assign "Bandwidth xxxx" and use ~95% of the bandwidth to do queuing and shaping/policing ect. I am not concerned with SiteA and SiteB, that I think I can handle...
Question was posed from the customer, "How can we ensure at the DataCenter level the 40MB MPLS is "chopped" up so that only 8MB of the total speed goes to SiteA ALONG with an attached QoS policy designed for that specific site, as well as ensure only 4MB goes to SiteB with an attached QoS policy.
So I am looking for a way to allocate bandwith per site on the DC 40MB connection going into the cloud ( so that SiteB cannot use more than 4MB ) and attach a MediaNet specific QoS Service policy to that site. The customer does not have seperate MPLS circuits for each site, they all come into the DC on 40MB shared ethernet connection ( no VC, or dedicated circuits to other sites ).
Any thoughts on if this is possible?
Thanks!
Alex

This is an example I have seen and I hope that is useful to you.
Site A
Subnet: 172.16.1.0/24
Site B
Subnet:172.16.2.0/24
HeadOffice:
ip access-list extended Site_A
permit ip any 172.16.1.0 0.0.0.255
ip access-list extended Site_B
permit ip any 172.16.2.0 0.0.0.255
class-map match-any Site_A
match access-group name Site_A
class-map match-any Site_B
match access-group name Site_B
policy-map To_Spokes
class Site_A
shape average 8000000
service-policy Sub_Policy(Optional)
class Site_B
shape average 4000000
service-policy Sub_Policy(Optional)
class class-default
shape average 28000000
service-policy Sub_Policy(Optional)
Interface G0/0
Description To MPLS cloud
bandwidth 40000000
service-policy output To_Spokes
interface G0/1
Description To HeadOffice
bandwidth 40000000
service-policy output To_Spokes
It would be greatly appreciated if someone can correct this or improve it as I am still learning.
Please see the netflow graph from one of our routers using a similar policy as above.

Data Center Aggregation/Access SW Nexus

i have a design scinario for backup email data center, some difficulties faced when trying to match the requirements to Boxes.
the design required a Nexus 5548UP with addition to 2x Virtualized Data center switches, also it required 12 x CPU license for VM Virtual Network Switch. i suggested to add Nexus 1000 series but the consern is can i use it without adding Nexus 2k . if i have to use N2k and N1k what is the best configuration scinario?

Hi Shakeeb,
I don't understand your question very well, but I will try clarify some points.
You don't need a Nexus 2000 if you have enough ports available in your Nexus 5500, even if you will use nexus 1000v.
In this scenario what I recommend to you is connect the both Nexus 5548 each other and create a vpc with upstreams routers and downstream blades and storage.
Richard

How can I create a VM in Brazilian Data Center

I am working on a Proof of Concept to use Cloud Services in Latin America. What I am trying to do is setup an FTP Site in the Azure Brazilian Data Center. So how can
I create a VM in the Brazilian Data Center… I do not see a way to do this through the Portal nor the Management tools. <o:p></o:p>
This question has been posted before but none of the answers seem to be satisfactory. My management does not want to spend money on a support contract until I get a
simple POC configured in this data center. So the only support mechanism I have is through the forums. For this reason I am posting this question again in hopes I receive a better answer for it.

Hi,
I guess, the Brazil Regions are available only to customers with billing addresses in Brazil.
The restriction on subscription location and access is documented here at the bottom:
http://azure.microsoft.com/en-us/regions/#services
I suggest you could contact with azure support team using the below link to get more details:
http://www.windowsazure.com/en-us/support/contact/
Also, I suggest you could use azure
powershell or
mangemnet API to create VM and set the region as "Brazil South".
Hope this helps.
Girish Prajwal

Query on DNS setup for Active Directory for a new data center

I have third party DNS appliances providing DNS Service for Active Directory (Windows 2008 R2) and there are also secondary DNS servers, which are MS DNS server with a secondary zone configured, for redundancy. I have to setup a new data center
and move servers/services to this data center. In this scenario, can I install a new Microsoft DNS server with a secondary zone and use this as the primary DNS Server for all the member servers at this new location ? I am aware that this new DNS server will
not be able to make any updates to the secondary zone and for that purpose, is there anyway to redirect such requests to the DNS appliances in my current data center across the WAN ? I am trying to avoid purchasing a new DNS appliance for the new data center
and want to know what are the alternatives I have.

im not entirely sure by your setup, as normally you would use AD integrated zones for DNS in an AD environment - although there are other options as you have already setup.
the fact the zone is a secondary zone in DNS server terms doesn't mean you can't point your clients to it as their primary dns server. They will quite happily resolve names using a secondary server.
so as long as your dns devices are correctly setup to support the additional secondary zone I see no reason why you couldn't do this.
Regards,
Denis Cooper
MCITP EA - MCT
Help keep the forums tidy, if this has helped please mark it as an answer
My Blog
LinkedIn:

IPT Clusters Data Center Move 8.6(2a)SU3‏

Hi Voice Experts,
Any help will be appreciated, I have read Cisco BCP and understand the best practice but Cisco doesn’t talk clearly about the questions mentioned [only adding subscriber needs a cluster reboot is confirmed but wanted to know from the experience of experts here]:-
We have a plan to move data center for IPT Clusters, and we are working for POC for server build as of now, I would need your guidance for the following questions:-
1-      Adding a new Subscriber:
a.       Is rebooting for all nodes in a cluster required?
b.      Is this mandatory to remove the subscriber from the list of servers from publisher before building the same subscriber in a live environment? [lets say need to replace MCS server for a subscriber]
c.       Can the replica subscriber be built in an isolated environment first by building the replica Publisher and then Subscriber, and later promote this newly build subscriber in live environment by replacing this with the original non working subscriber?
2-      Node licensing:
a.       The node licensing reflects the no of Subscribers in a cluster [not non subscribers like MOH, TFTP servers], lets say we have one subscriber in one data center, we need to move this in another Second data center, so can we build this server with different ip address in live running environment [will shut down the original subscriber first before promoting newly built server as SUBSCRIBER considering node licensing limitations], is that doable ? OR First we need to decommission the current running server from one Data Center and then start building the subscriber in second data center?
Regards,
Shah

I dont quite follow what you are trying to do, are you actually going to move your whole cluster to a DC?
if you move DC, can you move your VMs across and Re-IP?
if you are going to build new subs in the new DC, you will need to add these to your existing cluster yes, no full reboot of your cluster should be required when adding a sub. once you have all subs spun up in your new DC, move your phones across to it (change option 150 in each voice subnet). lastly Re-IP your PUB to fit in the new IP range in your new DC
always make sure you ready the release notes!!!!!
You will need to get temporary licences for your interim period where you have a bunch of sub in the new as well as the old DC. All you need is node licences. Speak to your reseller.
please rate if usefull

Server Requirements - Always On in a single server? - Needs clustering even one server on another Data Center?

Hello:
I have been asking this questions to different forums and got different responses, so I wanted to know if asking to "Microsoft" will give me some good directions. (All in SQL Server 2012, including the OS)
Question 1.- Always On "HAS" to be configured on a WSFC node? How about in a Single SQL Server. (NO Clustering)?.
Question 2.- What about our mirroring processes configured and running in single servers, do we have to have WSFC installed before we can upgrade them to Always On?.
Question 3.- In a case I have WSFC, and configure Always On, can my second or third replica reside in a single SQL Server? (No WSFC). What if I can not have Clustering in a DR Data Center? or I do have only VM's on the DR Center?
Any help will be greatly appreciated.
Thanks
Oscar Campanini

Hi Oscar,
Please find the answers below.
Question 1.- Always On "HAS" to be configured on a WSFC node? How about in a Single SQL Server. (NO Clustering)?.
                - Yes . Each replica must be on a different node of a WSFC cluster. Without WSFC Cluster you cannot create always on as it relies on the failover capabilities of the
cluster.
Question 2.- What about our mirroring processes configured and running in single servers, do we have to have WSFC installed before we can upgrade them to Always On?.
                 - You cannot really upgrade a Database mirroring configuration to Always on , both are different and works differently. Again for Always on each participating
replica must be on a WSFC cluster
Question 3.- In a case I have WSFC, and configure Always On, can my second or third replica reside in a single SQL Server? (No WSFC). What if I can not have Clustering in a DR Data Center? or I do have only VM's on the DR Center?
               - NO all replicas have to be in single nodes of WSFC cluster.
Note: SQL Server doesnt have to be clustered.
Consider the following scenario. YOu need to create Always on with a 3 node topology ie 1 Primary, I secondary and 1 readonly secondary.
YOu need to have all these three nodes a part of Windows Server Failover Cluster. The clustering needs to be done only in the windows level. YOu can install standalone SQL Servers on all these 3 nodes and then condigure them as replica's in ALways on.
Read these links to clear your questions -
http://technet.microsoft.com/en-gb/sqlserver/gg490638.aspx
http://technet.microsoft.com/en-us/library/hh510230(v=SQL.110).aspx
http://technet.microsoft.com/en-us/library/ff878487(v=sql.110).aspx#ServerInstance
Note: When I said Always ON I was reffering to Availability Groups.
Regards, Ashwin Menon My Blog - http:\\sqllearnings.com

Ask the Expert: Data Center Integrated Systems and Solutions

Welcome to this Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about utilizing Cisco data center technology and solutions with subject matter expert Ramses Smeyers. Additionally, Ramses will answer questions about FlexPOD, vBlock, Unified Computing Systems, Nexus 2000/5000, SAP HANA, and VDI.
Ramses Smeyers is a technical leader in Cisco Technical Services, where he works in the Datacenter Solutions support team. His main job consists of supporting customers to implement and manage Cisco UCS, FlexPod, vBlock, VDI, and VXI infrastructures. He has a very strong background in computing, networking, and storage and has 10+ years of experience deploying enterprise and service provider data center solutions. Relevant certifications include VMware VCDX, Cisco CCIE Voice, CCIE Data Center, and RHCE.
Remember to use the rating system to let Ramses know if you have received an adequate response.
Because of the volume expected during this event, Ramses might not be able to answer every question. Remember that you can continue the conversation in the Data Center Community, under the subcommunity Unified Computing, shortly after the event. This event lasts through August 1, 2014. Visit this forum often to view responses to your questions and the questions of other Cisco Support Community members.

Hi Ramses,
I have dozen questions but will try to restrain myself and start with the most important ones :)
1. Can cables between IOM and FI be configured in a port-channel? Let me clarify what I"m trying to achieve: if I have only one chassis with only one B200M3 blade inside, will the 2208 IOM and FI6296 allow me to achieve more than 10Gbps throughput between the blade and the Nexus 5k? Of course, we are talking here about clean ethernet environment.
B200M3 --- IOM2208 --- 4 links --- FI6296 --- port-channel (4 links) --- Nexus5548
2. Is it possible to view/measure throughput for Fibre Channel interfaces?
3. Here is one about FlexPod: I know that in case of vBlock there is the company that delivers fully preconfigured system and offers one universal support point so customer don't have to call Cisco or VMware or storage supports separately. What I don't know is how it works for FlexPod. Before you answer that you are not sales guy, let me ask you more technical questions: Is FlexPod Cisco product or is NetApp product or this is just a concept developed by two companies that should be embraced by various Cisco/NetApp partners? As you obviously support Datacenter solutions, if customer/partner calls you with are FlexPod related problem, does it matter for you, from support side, if you are troubleshooting fully compliant FlexPod system or you'll provide same level of support even is the system is customized (not 100% FlexPod environment)?
4. When talking about vCenter, can you share your opinion about following: what is the most important reason to create the cluster and what will be the most important limitation?
5. I know that NetApp has feature called Rapid Clones that allows faster cloning than what vCenter offers. Any chance you can compare the two? I remember that NetApp option should be much faster but didn't understand what is actually happening during the cloning process and I'm hoping you can clarify this? Maybe a quick hint here: seems to me it will be helpful if I could understand the traffic path that is used in each case. Also, it will be nice to know if Vblock (i.e. EMC) offers similar feature and how it is called.
6. Can I connect Nexus 2000 to the FI6xxx?
7. Is vBlock utilizing Fabric Failover? Seems to me not and would like to hear your opinion why.
Thanks for providing us this opportunity to talk about this great topic.
Regards,
Tenaro

Link Load balancing - Data center query

Dear all,
I have a query on link load balancing. My scenario goes like this. The customer has taken web hosting services from two data centers. When an user who is accessing the servcies available in primary data center gets disconnected due to say link failure. Then the services should be available continuosly from the secondary data center. All the services provided by the primary data center should be available now from the secondary data center without any down time. What device i should go for, for doing this link load balancing. After searching a lot in the web, i found this Cisco Global site selector which does the link load balancing between data centers. I want to know whether i have ended up with the right choice? Plz give your valuable suggestions for the correct device i should use for load balancing multiple data center.

That product can be quite good, I believe another company called F5 also makes good stuff in that arena... However, you have to remember that alot of this depends on what application you are doing on these servers. If you're running a service that only hosts static web pages, that's no problem. But, if you're going to be doing ecommerce where it needs to save the users "state" between page loads and such, that gets much more complex and you need to choose the right server software, such as Coldfusion or PHP or whatever to accomodate this too...

EU data center

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