Austin Data Center Video Link

I cannot open the link to the video http://www.oracle.com/broadband/showondemand.html?1809334
I have also tried it at home and have the same problem there. The window opens, starts to load and then disappears.

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...

Similar Messages

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...

Data, voice, video & fax over the satellite link

Hi,
We have a requirement for Cisco voice to be implemented at our satellite teleport. This is basically to connect our teleport location HO to Barge (sea platform - rig) via the satellite. At the rig we would require data, voice, video & fax services. The satellite WAN BW is 256kbps. The Barge users will use four telephones, one fax & will do videoconferencing. They will communicate with teleport HO & use the PSTN for internationatal dialling using the HO voice gateway.There is no Cisco call manager in place. There is PBX (Brand-NEC, Model- NECX 2400) system at the HO.
Appreciate if somebody can recommend as to what would be the best way to provide voice, fax & video connectivity to the users in the barge.Thanks.
Rgds./
Sack

Buy Unified Communications Manager, SageCom XMediusFAX, and a Cisco ISR G2 router for the head office to provide PSTN calling and faxing support. Buy a second ISR G2 with Unified Communications license, the appropriate CME license count, and a ISM running CUE for voicemail. Configure UCM and CME to communicate using a SIP trunk and configure QoS on the satellite to prioritize the voice and signaling traffic. You will not get video calling across a link that small.

Need helip for data center designing

Sir ,
I am going to design a data center where the following equipments are the
1. one router 7609
2. two core switch (WS-C6509-E)
3. two firewall (WS-C6506-E, with Firewall blade)
4. one VOICE ROUTER (CISCO2821with PVDM2-64, VWIC2-2MFT-T1/E1, PVDM2-32)
5. one Remote Access Server (AS5400XM, AS5000XM 60 Dial Port Feature Card, AS5400 Octal E1/PRI DFC card)
6. two CALLMANAGER-5.1
7. multiple no of Cisco IP Phone 7940G with Video Advantage with VT Camera II
8. one Gatekeeper (2811)
9. one Internet Router (3845)
10. one Authentication, Authorization and Accounting (AAA) System
11. one ISDN RAS 2811 with2-Port Channelized E1/T1/ISDN-PRI Network Module with video conferencing (polycom)
12. one Network Intrusion Detection/ Prevention System (NIDS)
13. one NMS
14. one Content Switch for Server Load Balancing
15. multiple Video Phone
16. lots of sever ( mail. Web, storage, etc )
17. polycom MGC 100
18. polycom 7000
also 20 no of 7206 VXR will be connect with 7609 router through lease line
so.. if u send me some link or some sample design and share some advice where I can gather some idea to design this data center in a proper way
thanks
tirtha

IMO opinion the best place to start is by reading the SRNDs. They can be found here-
http://www.cisco.com/en/US/netsol/ns656/networking_solutions_design_guidances_list.html
Hope that helps.

Deploying Cisco Overlay Transport Virtualization (OTV) in Data Center Networks

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.
Anees Mohamed Abdulla is a network consulting engineer for Cisco Advanced Services, where he has been delivering plan, design, and implementation services for enterprise-class data center networks with leading technologies such as vPC, FabricPath, and OTV. He has 10 years of experience in the enterprise data center networking area and has carried various roles within Cisco such as LAN switching content engineer and LAN switching TAC engineer. He holds a bachelor's degree in electronics and communications and has a CCIE certification 18764 in routing and switching.
Pranav Doshi is a network consulting engineer for Cisco Advanced Services, where he has been delivering plan, design, and implementation services for enterprise-class data center networks with leading technologies such as vPC, FabricPath, and OTV. Pranav has experience in the enterprise data center networking area and has carried various roles within Cisco such as LAN switching TAC engineer and now network consulting engineer. He holds a bachelor's degree in electronics and communications and a master's degree in electrical engineering from the University of Southern California.
Remember to use the rating system to let Anees and Pranav know if you have received an adequate response.
Because of the volume expected during this event, Anees and Pranav might not be able to answer each question. Remember that you can continue the conversation on the Data Center, sub-community forum shortly after the event. This event lasts through August 23, 2013. Visit this forum often to view responses to your questions and the questions of other Cisco Support Community members.

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.
Even though your question is related to L2TP, OTV deserves the comparison with VPLS and those comparison will also be applicable for L2TP. The below link explains in detail...
http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps9402/white_paper_c11-574984.html
Thanks,
Anees.

Ask the Expert: Scaling Data Center Networks with Cisco FabricPath

With Hatim Badr and Iqbal Syed
Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about the Cisco FabricPath with Cisco technical support experts Hatim Badr and Iqbal Syed. Cisco FabricPath is a Cisco NX-OS Software innovation combining the plug-and-play simplicity of Ethernet with the reliability and scalability of Layer 3 routing. Cisco FabricPath uses many of the best characteristics of traditional Layer 2 and Layer 3 technologies, combining them into a new control-plane and data-plane implementation that combines the immediately operational "plug-and-play" deployment model of a bridged spanning-tree environment with the stability, re-convergence characteristics, and ability to use multiple parallel paths typical of a Layer 3 routed environment. The result is a scalable, flexible, and highly available Ethernet fabric suitable for even the most demanding data center environments. Using FabricPath, you can build highly scalable Layer 2 multipath networks without the Spanning Tree Protocol. Such networks are particularly suitable for large virtualization deployments, private clouds, and high-performance computing (HPC) environments.
This event will focus on technical support questions related to the benefits of Cisco FabricPath over STP or VPC based architectures, design options with FabricPath, migration to FabricPath from STP/VPC based networks and FabricPath design and implementation best practices.
Hatim Badr is a Solutions Architect for Cisco Advanced Services in Toronto, where he supports Cisco customers across Canada as a specialist in Data Center architecture, design, and optimization projects. He has more than 12 years of experience in the networking industry. He holds CCIE (#14847) in Routing & Switching, CCDP and Cisco Data Center certifications.
Iqbal Syed is a Technical Marketing Engineer for the Cisco Nexus 7000 Series of switches. He is responsible for product road-mapping and marketing the Nexus 7000 line of products with a focus on L2 technologies such as VPC & Cisco FabricPath and also helps customers with DC design and training. He also focuses on SP customers worldwide and helps promote N7K business within different SP segments. Syed has been with Cisco for more than 10 years, which includes experience in Cisco Advanced Services and the Cisco Technical Assistance Center. His experience ranges from reactive technical support to proactive engineering, design, and optimization. He holds CCIE (#24192) in Routing & Switching, CCDP, Cisco Data Center, and TOGAF (v9) certifications.
Remember to use the rating system to let Hatim and Iqbal know if you have received an adequate response.
They might not be able to answer each question due to the volume expected during this event. Remember that you can continue the conversation on the Data Center sub-community Unified Computing discussion forum shortly after the event. This event lasts through Dec 7, 2012.. Visit this support forum often to view responses to your questions and the questions of other Cisco Support Community members.

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.
One important aspect of Spanning Tree Protocol behavior is its inability to use parallel forwarding paths. Spanning Tree Protocol forms a forwarding tree, rooted at a single device, along which all data-plane traffic must flow. The addition of parallel paths serves as a redundancy mechanism, but adding more than one such path has little benefit because Spanning Tree Protocol blocks any additional paths
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.
– Loop prevention and mitigation is available in the data plane, helping ensure safe forwarding that cannot be matched by any transparent bridging technology. The Cisco FabricPath frames include a time-to-live (TTL) field similar to the one used in IP, and a Reverse Path Forwarding (RPF) check is also applied.
• Efficiency and high performance
– Because equal-cost multipath (ECMP) can be used the data plane, the network can use all the links available between any two devices. The first-generation hardware supporting Cisco FabricPath can perform 16-way ECMP, which, when combined with 16-port 10-Gbps port channels, represents a potential bandwidth of 2.56 terabits per second (Tbps) between switches.
– 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.

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.

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

Video Link using iSight on MBP

Hi folks, I have a dilemma.
I am trying to get a live video link up and running for a wedding.
The service is going to be in one room and we need a video screen in another room for the overflow of guests to be able to view the service.
I am currently trying to use the following to no avail.
isight camera on 1st gen 15"MBP 2.16G with 2GDDR2 SDRAM or MB Core2Duo (Black), It doesn't matter which camera we use, they both work fine. Both machines are fully up-to-date with all patches on OSX v 10.4.10
Airport Express base station for connecting the computers wirelessly (on which they can file share etc with no problem).
I have tried various things using QT Broadcaster & QT / VLC with many different configurations, none of which enable me to view a live video stream.
I am currently downloading DarwinStreamingServer to see if this will help.
there must be a way to do this, can anyone shed any light?

Hello mooseworks.co.uk
If I understand your postings correctly, you are not having problems with your iSight.
Rather, you are asking for help with QT Broadcaster and Darwin Streaming Server. If you need more help than you find in the "Help" files for these applications, see Apple's QuickTime "Streaming & Delivery" tutorials.
If you need still more, try posting your question in the QuickTime for Mac OS forum.
Jim

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

WAN and multi-site data center

Dear all
my company have two different data center, one active data center, the second data center is not active, they are willing to go with active - active data center model, i am who responible to design WAN solution,
We almost success to make LAN for both DC act as one LAN data center,
now how to make two different site act as one from WAN prespective,
our WAN devices model is
ASR 1006, 7604 ( in each site)
what are the technologies used for such things
i hope anyone can help

Does anybody have aclue, link , i see 13 view with no replies, if anyone can help

Data Center Design: Nexus 7K with VDC-core/VDC-agg model

Dear all,
I'm doing with a collapsed VDC-core/VDC-agg model on the same chassis with 2 Redundant Cisco Nexus 7010 and a pair of Cisco 6509 used as a Service Chassis without VSS. Each VDC Core have redundant link to 2 PE based on Cisco 7606.
After reading many design document of Cisco, I'm asking what is the need of a Core Layer in a Data Center especially if it is small or medium size with only 1 aggregation layer and dedicated for a Virtualized Multi-Tenanted environement? What is driving to have a core layer?
Thanx

If your data center is small enough to not require a core, then its fine to run with a collapsed core (distribution + core as the same device). For a redundant design you need to uplink all your distribution switches to each of your cores. If you have no cores, then you need full mess at your distribution layer (for full redundancy).
Lets say you have only 4 distribution pairs...so 8 switches For full redundancy each one needs uplink to each other. This means you need 28 total ports used to connect all the switches together (n(n-1)/2). Thats also assuming 1 link to each device. However if you had redundant cores, the number of links used for uplinks reduces to 21 total links (this includes links between each distribution switch in a site, and link between the two cores). So here you see your only saving 7 links. Here your not gaining much by adding a core.
However if you have 12 distribution pairs...so 24 switches. Full redundancy means you have 276 links dedicated for this. If you add a core, this drops to 61 links. Here you see the payoff.

Unable to Activate Windows 2012 Data Center Evaluation Copy

I installed a Windows Server 2012 Data Center Preview Evaluation Copy. I am trying to Activate it now so that it stops rebooting every hour. I obtained the Activation Key for a Full Version and tried all of the following to activate it:
1. Ran the following from other posts using the 2012 Data Center Full Licence Product Key.
DISM /online /Set-Edition:ServerDatacenter /ProductKey: XXXX-XXXX-XXXX-XXXX /AcceptEula
I get a "Windows cannot upgrade to the edition that was specified". When I run the Get TargetEditions it says current edition cannot be upgraded to
any target editions.
I also tried with the Product key for my Eval Version, as well as the DataCenter Standard. None seem to work.
2. Called Microsoft and they tried to give me a CID. This also did not work.
How can I activate this copy of Windows. Is it possible?
if it is not possible, can you please advise on how to easily Reinstall and restore all my apps, registry settings, programs, firewall settings, network, etc. I
have a lot running on this server and reinstalling everything is not an option. Is there some easy way to reinstall Windows 2012 Data Center FULL and just import all my settings?
Any advice is appreciated.

As per Johan's earlier suggestion, it's unsupported to "convert" or "upgrade" from Preview -> RTM. I have not tried it personally, but I would expect the convert/upgrade to be blocked (but the messaging for that is likely to be vague/obscure,
since it is unsupported i.e. untested by MS)
The guidance from MS on this topic (as per the cited TechNet library links), is to perform a clean install.
Upgrades from pre-release versions of Windows Server 2012 (such as the Release Candidate) are not supported. Perform a clean installation to Windows Server 2012.
Your desire to backup the existing Preview installation may be able to be done in an offline scenario, e.g. boot the server from a Windows installation media, or a WinPE boot media of some kind.
With this backup saved to another disk, you could then try a clean install, and then import the VMs into the rebuilt server. I would not expect you to be able to preserve much else (installed applications etc).
Don
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