IP SLA design

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Hi,
We have 11 sites in a star mesh topology. We would like to use IP SLA to monitor the VoIP stats between each site to every other site but do not want to add 10 monitors at each location. This seems to be a waste of router resources.
What would be the ideal way to accomplish our goal?

Indeed that would be a waste.
You create 10 on the frst site 9 on the second 8 on third, etc
Cheers,
Michel

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Hi, sorry if this post is in the wrong place, but here goes:
I'm designing a Swing Java application for a client. My client intends to distribute/sell this application.
I'm concerned because, chances are that at least one of the people he distributes this application to will not have the JRE installed and will thus be unable to run the application.
Can anyone give me some suggestions on ways I can make my application more convenient for users without the JRE currently installed? Even some kind of error message that would direct the user to the JRE download site would be okay.
kwikness
Edited by: kwikness on Dec 2, 2009 5:56 PM

Use NSIS and package your application with JRE.
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NSIS can create a short cut (desktop/start menu) to launch java class/jar file
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have a following human work flow task scenario for which we need to display SLA performance Index in a range gauge.
1) The dataobject "HumanTaskInfo" will capture task id, task status, task creation time, task completion time in their fields. one more field is been kept to calculate the time difference between task creation time and task completion time during the time of feed to this dataobject
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thanks.

Anyone providing suggestions on this will be highly helpful.
Our requirement is to show the SLA of human task in Range Gauge ( 0 to 65 % - red; 65 - 80 % yellow; 80 - 100% - green) in BAM report.
The dataobject stores
1) Process Instance Id ( which is a unique key)
2) task status ( new, approved, rejected )
3) task start time
4) task end time
5) taskstart2endtime(calculated field which stores the difference between task start time and task end time in seconds)
The objective is to calculate the number of tasks for last 30 days (which has either approved or rejected status) which completed ( means approved or rejected) in 8 hrs of time period .
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Hi,
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This is how the budget service/SLA enforcement works:
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Hi,
Yes of sure !
Try to check this :
http://social.technet.microsoft.com/wiki/contents/articles/13472.system-center-2012-service-manager-developer-s-survival-guide.aspx
Extending UI
SCSM 2012 use WPF (Windows Presentation Foundation) for all UI elements. With
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Forms
Console tasks
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in forms and console tasks directly.
Overview of the Forms Infrastructure and the Generic Form
Tasks – Part 1: Tasks Overview
Open Source
Projects
SCSM Incident SLA Management
SCSM Send Email MP
SCSM Perf Test Harness
Examples
How
to Create Task Handlers
Tasks Part 2 – Custom Console Tasks for Create, Edit, Delete
Creating Custom Forms for Service Manager using Custom Controls:
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Create custom UserControl for SCSM 2010 SP1
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Creating a Custom Administration Setting
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Service Manager 2012 – How to disable form controls for a Resolved
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Hi Experts,
Can we design tool in ABAP or webdynpro where tool will monitor SLA for incidents in HPSM (HP service manager)?
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Sanjana

Hi,
I have the same issue. SCOM --> OMU 9.10 works fine, OMU 9.10 --> SCOM doesn't work.
What do you exactky mean with "The user configured for use with the integration pack must have its time zone preferences set to Greenwich/Universal with a date format of mm/dd/yy." Where do you have setup this configuration?
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Hi guys!
I'm doing a redundant ACE module installation (using 7600) and I came with some design questions.
From the configurations guides, you configure a VLAN X for clients (where the traffic to be balanced arrives), and VLAN Y for servers (where the real servers are). In all the examples I've seen, the VIP address is from the client VLAN subnet, from that I wonder:
1.- Is this the only way to do this? The 7600 supervisor knows where the VIP is because it has a BVI in that same VLAN X, so it’s directly connected. For the 7600 to reach the real server subnet, it would need a static route pointing to the ACE IP address right?
2.- In that scenario (VIP living in the Client VLAN X), RHI is not necessary right? But when the VIP is not available? What would happen then? You still need RHI so there is a "dynamic" host route for the VIP?
3.- Then in what situations would RHI it be needed? I've read that you need RHI when you don’t have the Supervisor and the ACE directly connected, but I don’t quite get this, can someone clarify?
4.- Can the VIP be a member of a different subnet? For example can it be a member of the Server VLAN Y? Or a completely different VLAN Z?, what would be the necessary changes?
Thanks a lot for your time guys, any help is greatly appreciated.
Omar M.

RHI is mainly used for inter site redundancy, instead of relying on DNS for your VIP HA, you rely on routing by announcing a /32 route in your OSPF backbone.
1 - yes
2 - it depends on the way you want to ensure inter site HA.
3 - the purpose is only to send a /32 route from multiple ACE clusters or sites. When your whole cluster or datacenters is down, the routing topology is built again pointing the same IP address to the new site (with playing on the OSPF cost) without any problem of DNS dead A record with client cache.
4 - No problem. You can even do it manually with a conditionnal host route defined on the upstream router (conditionned with an IP SLA sensor) redistributed into your OSPF process

Is it Mandatory to Load the Accounting Definitios wrt SLA?

Hi Gurus,
We have upgraded our system from 11.5.10 to 12.1.2. I have few Questions regarding the Loading Accounting Definitions w.r.t SLA.
Do we need to Load the Accounting Definitions?
Can we validate the existing Accounting Definitions? Will that be enough?
Current Accounting Definitions are from 11i to R12, Which are Invalid.
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Expecting you replies.
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Sharepoint 2007 designer - sqldatasource and grid view not displaying on SP page (An unexpected error has occured)

Hi All,
I am using sharepoint designer 2007 and am trying to use a sqldatasource to populate a gridview and then display that on an .aspx page. While in designer everything seems to configure okay. I am able to test the connection and display the data
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<asp:GridView runat="server" id="GridView1" AutoGenerateColumns="False" DataSourceID="SqlDataSource1">
<Columns>
 <asp:boundfield DataField="Case Creation Date Time" HeaderText="Case Creation Date Time" SortExpression="Case Creation Date Time">
 </asp:boundfield>
 <asp:boundfield DataField="Case #" HeaderText="Case #" SortExpression="Case #">
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 <asp:boundfield DataField="Source" HeaderText="Source" SortExpression="Source">
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 <asp:boundfield DataField="Priority" HeaderText="Priority" SortExpression="Priority">
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 <asp:boundfield DataField="Status" HeaderText="Status" SortExpression="Status">
 </asp:boundfield>
 <asp:boundfield DataField="Category" HeaderText="Category" SortExpression="Category">
 </asp:boundfield>
 <asp:boundfield DataField="Creator group" HeaderText="Creator group" SortExpression="Creator group">
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 <asp:boundfield DataField="Assigned Group" HeaderText="Assigned Group" SortExpression="Assigned Group">
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Any help is appreciated.
Thanks !

Thanks Daniel.
I am unable to connect to my SQL EXPRESS db on my laptop via SPD 2007: I get the error -
I am able to access that database via SQL Server Mgmt. Studio (both with Windows and SQL Server authentication). I can also access a SQL Express database on a remote server from the exact same SPD 2007 session: I get -
So, I wonder why I can connect to the remote but not the local? Anyway, if you have any ideas I would appreciate it. I am willing to do the work from the article you mention but wanted to rule out there being a simple DB access issue first. I'll also
start to find the ULS logs and review them.
Thanks again !!
Update on 1-3-14: Hi, since yesterday I also have been able to connect to the SQLEXPRESS database / table and display the .aspx page with the gridview in Visual Studio 2010.
Update 1-26-14: Sorry for the delayed response. I determined the reason why I could not connect to the SQLEXPRESS instance on my laptop was that there was a local host intrusion (firewall) rule on my machine that prevented an inbound connection
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We are a small design studio how do we install lion on all machines

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Hello everyone,
I am looking for ways how to in OSM set a time - service level (*SLA*) for each function of the orchestration.
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You can do things like this at Order and Task Levels, but I do not know how to do this at the level of each function.
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Best Regards,
David Alejandro Leon H.

Hi David,
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IP SLA duplicate trap messages received

Hi
Refer to the attached screen capture from a trap receiver program, it seems that there are duplicate traps received from an IP SLA sender which is a Cat6509. Is it normal?
Configuration of the IP SLA sender attached also.
Thanks!

Hi Deepak,
I can say from my personal experience that whenever we use same multicast ip address and port for the purpose of multicast utility then we will get the duplicate messages.
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***Duplicate multicast packets are symptoms of several things:***
1. An ethernet-level device (e.g. bridge) that doesn't understand multicast so reforwards it. This is easy to track to the right subnet using mtrace's packet statistics, but hard to track to the final device because it doesn't change the ethernet source address.
2. The design of the PIM protocol accepts multiple copies periodically; when there are multiple paths to a multi-access link the default state is that all routers on the link forward; PIM Assert messages elect a single router as the forwarder but periodically time out.
3. Forwarding loops. This is often due to a misconfigured router.
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Thanks,
Sreedevi

IP SLA satcom challenge

I've got a one way satcom link that is having errors and I want to use IP SLA to monitor. The satellite path is one way from A to B and I am trying to set up testing A to B but B cannot respond at least in the typical manner because there is no return link. I have a routed service channel that can reach back B to A so there is a path available if the IP SLA response packets could somehow route.

Routing decisions are not taken by IP SLA. Irrespective of what protocol/feature you use on IOS, network route has to be configured properly on the network itself, for symmetric or asymmetric routes.
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Which IP SLA operation are you configuring?
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Exadata Design

Have requirement to migrate 100+ applications (400+ Oracle databases) to Exadata X2-2. Project timeline is 12 months to move everything to Exadata environment.
Current state of databases:
===================
1. All databases are in 11.2.0.2/3
2. Runs mostly standalone( very less RAC)
3. Mostly OLTP applications
4. No consolidations
5. Production systems are having RMAN - level 0 and incremental and archivelog
6. databases run on Linux , SunOS
Questions:
========
1. How many Exadata Full RACKs would be required to buy so that all these databases workload would be accommodated?
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3. Is there any impact of availability of usable storage if a FULL RACK is broken down to HALF or QUATER ? how much % waste of storage and why the waste?
4. Due to cost, is it advisable to use Non-Exadata environment for development/Test databases?
Thanks,

1. How many Exadata Full RACKs would be required to buy so that all these databases workload would be accommodated?
Without information on transaction activity, database size and many other factors here is no way to give a solid answer. Have you had Oracle or another firm experienced with Exadata migrations evaluate the environment, this would be the best way to get an answer to this question.
2. What is the best way to use these FULL RACK - meaning - should we break down the FULL RACK to Quarter RACK or to HALF RACK ? what is the methodology to follow to design this?
Best way to use Exadata is to utilize the features of the environment, ie. Resource management and instance caging and instance placement. By evaluating the databases and instances and placing them properly and then applying resource management and instance caging you can have a good level of control of resource utilization. Breaking a Full rack down to 2 half racks or 1 half rack and 2 quarter racks while possible and has been done typically is done in cases where there is a firm requirements to divide the workload and based on SLAs promise not to share any resources between the environments and must dedicate hardware for those environments.
3. Is there any impact of availability of usable storage if a FULL RACK is broken down to HALF or QUATER ? how much % waste of storage and why the waste?
Yes, if you break the Racks apart physically you will loose some space utilization due to mirror required free in the configuration the amount that you would lose will depend on how many physical Racks you break down into. In an Exadata configuration the tolerance is to be able to lose an entire cell without impacting availability. The more you break down the rack the more cells have to be used to ensure that a lost storage cell can still happen therefore usable space is reduce by that amount.
4. Due to cost, is it advisable to use Non-Exadata environment for development/Test databases?
A lot of organizations for development and QA environments use non-Exadata for these environments, but have a non-prod Exadata that is used for performance and release testing whenever possible. Ok to have development non-exeadata and feature and QA testing, but to ensure that your releases are fully tested for Exadata it would be recommended to have an Exadata Environment to test in for a Pre-production testing environment. I have seen this environment be one where the applications utilize the environment in a rotation so in cases where there are multiple racks in production they have a matching rack for non-production and the applications testing cycle rotates through for testing helping reduce costs that way.

Multiple WAN site redundancy design review (dark fiber, p2p, DMVPN)

I'm re-designing a couple of wan sites. I'm using EIGRP over both some leased dark fiber and p2p provider connections. The attached (pdf) physical topology says it all, I'm thinking of using ip sla to track and inject routes over prefered connections, but really just looking for feed back if someone is interested in taking a look.
I've bought 2 2951's with es3g-16-p modules so I can build svi's and do hsrp between the paths, building redundancy between the 3 available paths back to our enterprise core (1Gbps, 40Mbps, 50Mbps).
multiple vlans at both sites...
e.g.: (wan site1 (vlan 10-15), want site2 (vlan 16-20))
Thoughts and thanks?

hi there
not sure why you need to use DMVPN if it all internal same internal network unless you need to have all the traffic between sites to be encrypted
anyway in general i would say of use the direct link to reach the directly connected networks per site
example using site one 100M link to reach DC and WAN
and use site2 50M local link to reach WAN as primary path and use the site1-site2 fibre to reach DC as primary path for site2 this could archive a good load sharing and reduce the load on the link between site1 and site2
IP SLA in a topology like your for sure can very helpful to improve failover time and make the routing more topology aware
hope this helps

IP SLA design

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