Schema Design

Hello All,
I couldn't find a better forum to post this but if you know of one, please tell me. I need to design a flexible schema for storing product catalog data. I can see 3 possible approaches although I'm sure there are others. 1) create a very specific relational model that's tightly coupled with the attributes of the products in the catalog 2) create a more generalized model where the attributes of the products are defined as name/value pairs 3) use XMLDB to store the definition of each product in an xml type schema.
The problem with #1 is that it's very inflexible and can become complicated. If we have to add new products to the catalog that have different attributes than what we already store, we'll have to make a schema change. The problem with #2 is the obvious issue with name/value pairs (very large tables, indexing problems, data typing problems, etc). The problem with #3 is that I don't know a lot about it and I'm not sure it makes sense. I'm doing a lot of reading but would like to hear what others have to say about it.
Can anyone offer any advice or point me to a good resource on the subject of designing schemas for this type of data. I'm wondering how places like Amazon and other large e-commerce shops store their product catalog data but haven't found anything to help me.
Thanks,
Mark

my bad I didnt explain that correctly
there is a activity template table and a activity schedule table
a schedule holds many activy schedules, an activity template copies info (name, description, etc) into the activity schedule (that way if the template changes, schedules already made with that activity dont change)
and then each activity schedule has 24 hour values

Similar Messages

URGENT!!!!! Schema design help

Iam trying to design a schema with ActiveDirectory Application mode with the following requirements:
Profile1: CM_VIEW  view equipment, search equipment
Profile 2: CM_USR  All operations possible by CM_VIEW + create equipment objects, modify inventory, create and modify facilities attributes
Profile 3: CM_FULL  All operations possible by CM_USR + delete equipment , facilities
Profile 4: CM_ADM  All operations possible by CM_FULL + admin privilege for security management
There are a list of user groups. This level is more like a container and no privilege is controlled at this level
User Group1 : Admin
User Group2: Manager
User Group3: Operator
Now this list of User groups can have one or more subgroups. The profiles need to be assigned at this level.
Admin group: Admin1
Manager group: NW Manager , Area1 Manager, Area2 Manager etc�
Operator Group: NW Operator, Area1 Operator, Area2 Operator
There is a single network which is divided into 5 area centers. User groups are given access to the whole network or specific area center.
Whole NW access : Admin1, NW Manager with whatever profiles assigned to them
Area1 access : Area1 Manager, Area1 Operator with whatever profiles assigned to them
As Iam a novice with ADAM, I seek some help to get my schema designed. Iam very confused about
- whether the default AD schema would suffice
- do I need to create my own class
- do I need to add my own attributes to existing classes
- If so, should I consider all the operations defined in the profile as user defined attributes?
I could not get specific information for the stuff Iam searching for and Iam struggling to get the shema designed. It is quite urgent and Any help in this area would be greatly appreciated

There would be several ways to solve this problem.
First of all, the schema. You have threee choices;
1. Extend an existing class.This is when the existing class meets your requirements (searching, differentiation) but needs a few more attributes
2. Derive a new subclass from an existing class. This is when you want to differentiate your class, but inherit features from an existing class.
3. Create a new class, when no existing class meets your requirements
For option 1, best way to do this is create an auxilliary class and add it to the existing class. (Eg. create an auxilliary class called clothing sizes, add attributes height, waist, hat size,shoe size,and then add the class to the existing user class)
For option 2, you may want a class called football player, so you create a new class called footballplayer, derived fromthe existing user class.You may add new attributes such as football team, playing position.
For option 3, you may want to create an entirely newclass to represent a football stadium, with both existing attributes such as address, city and new attributes such as seating capacity
So in your case, users & administrators would normally just be user or inetOrgPerson class objects. Equipment & facilities may require their own classes.
Next thing is to use organisationaUnits (OU's) as the boundaries for delegating administrative permissions. For each area, Area 1, Area 2, ...,Area n, create an organizational unit.
Then you have two methods to enforce role based access control.
The first is to use is to use the Windows security model to enforce the object access.
Create groups to represent CM_VIEW, CM_USR, CM_FULL, CM_ADM roles, perhaps even groups such as Area_1_CM_USR
Then grant the following permissions on the OU.
CM_VIEW - read/list eqpt class objects
CM_USR - read/write/list/create/delete eqpt class objects, read/list/write/create facilities
CM_FULL - read/write/list/create/delete eqpt class objects, read/list/write/create/delete facilities
CM_ADM - full permissions on the OU.
You can either define these ACL's on the OU's so the permissions apply to all objects in the OU, or define them on the schema definitions so that as new objects are instantiated they have the default permissions applied. As you want to differentiate access at the OU level, don't worry about the default schema permissions, just set the ACL's on each OU.
The problem you would have is using Java/JNDI to manage the ACL's (writing the security descriptors on the OU or object classes.).Far easier to use either the WIndows API's, Windows scripting interfaces (ADSI), LDIF files or Windows UI components (ADSIEdit).
You may want to do all the schema extension and ACL's with Windows tools,coz they're easier and use Java/J2EE for your application development.
The second approach is to apply the role based access controls within your application. The security risk with this approach is that it may be possible for someone to subvert the security in your application by accessing the directory directly.

LDAP Schema Designer

I am looking for a kind of LDAP Schema Designer , utility that can check consistency of my schema , detect redundancies ....
Any suggestions?
Thanks

I don't know of any tool like that. The problem is actually not quite that simple, since LDAP does not implement a relational database per se, or have concepts about 1st, 2nd, 3rd, etc normal forms.
If you want me to review and refine your schema for you, then you can hire me as a consultant. I have extensive experience in designing schema and modeling directory objects and DIT.
Click my handle for my email address if interested.
podzap

XML Schema Design question

Hello all,
I am a new to XML Schema design and struggling with designing my first XML Schema. Here is my problem.
I have almost 200 elements in my database which I have to use to design XSDs, I have customer name ( last name, first name, dob etc) and customer address ( office address, home address etc) and at the same time I have other player such as Patient name ( last name, first name, dob etc) and patient address( home address, office address).
And then we have some dollor related data such as patient insurance amount, copay amount , total amount and many more $.
What I wanted to know is that what would be best approach to design a XML schema for such kind of system, should I create one schema (xsd) for all the 200 attributes or I should create seperate schema for customers ( including names and addresses along with other dollor amount data ) and a similar xsd for Patient data. Some of the XML documents which I will create from these schemas would be based on customers and patient information both .
Thank you.
Regards
Suhail Ahmad

It's hard to tell what is the best design. But in order to simplify access to these data through other program APIs such as JAXB, you may start from defining objects such as the schema types/elements for customer, patient and the addresses
Then you can assoicate the related data to these object.

Difference between database design and schema design

Hi i have visited so many database websites and i found so many people saying we can design a data base for you. Is schema designing and database designing is the same. so many palces i find people saying we have to design data base first in order to create a physical databse. so i am little bit confused. are they same? and also what is the difference between data model and schema?

> the definition i found for logical data model, physical data model and the definition you
gave for logical database design, physical database design are the same.
Not correct. The physical design is the implemetation of the logical design. These two designs are at different levels. Also, the logical design will be the same. irrespective of the RDBMS product use.
What is incorrect is a designer/architect designing a logical design specifically for Oracle.. or specifically for SQL-Server. A logical design has nothing to do with the RDBMS product (or h/w platforms. app servers, web severs and operating systems used).
So the logical design will always be the same - it is RDBMS independent.
The physical design is fully dependent on the RDBMS product used. The same logical design will be implemented as different physical designs for Oracle and for SQL-Server.

Star schema design, metrics dimension or not.

Hello Guys,
I just heard from one of my colleagues that its wise to
have an "KPI" or "metrics" dimension in my DWH star schema (later used in OBIEE).
Now, we have quite a lot of data 100 000 rows per day (botton leve, non-aggregated, the aggregations are obviously far less then that, lets say 200 rows per day) and
we have build pre-aggregated data marts for each of the 5 very static reports (OBIEE Publisher).
The table structure is very simple
e.g.
Date,County,NumberofCars,RevenuePerCar, ExpensesPerCar, BreakEvenPerCar, CarType
One could exclude the metrics "NumberofCars","RevenuePerCar", "ExpensesPerCar", "BreakEvenPerCar"
and put them into a metrics dimension.
MetricID Metric
1 NumberofCars
2 RevenuePerCar
3 ExpensesPerCar
4 BreakEvenPerCar
and hence the fact table design would be simpler.
Date,County,MetricID,Metric, CarType
Disadvanatages: A join is required
We would have to redesign our tables
tables are not aggregated anymore for specific metric types
if we notice performance is bad, we would need to go back to the old design
Advantages : Should new metrics appear, we dont have to change the design of the tables
its probably best practice
Note: date, country and cartype are already dimensions. we are just missing one to differentiate the metrics/KPI's
So I struggle a bit, what should I do? Redesign, or stick to the way I have done it, having
performance optimization in mind.
Thanks

"Usually the date is stored in sales table or product table.
ut here why they created separate Dimension table for date(Dim_date)? "
You should provide the link.
A good place to start with the basic concepts is :
http://www.ralphkimball.com/
Pick up some of his books and start going through them.
My recommendation would be
The Data Warehouse Toolkit, 2nd Edition: The Complete Guide to Dimensional Modeling
John Wiley & Sons, 2002 (436 pages
Good Luck.,

Star schema design

Hi,
I know that in classical star schema the dimension tables sits within the info cube and so we cannot use this dimension table in any other cube we need to have separate dimension table for that cube thought it might be having same data. I also know to over come this redundancy extended star schema came into picture where we have SID table and we keep the dimension table out of the cube and reuse the dimension tables across many cubes.
Now what i don't understand is that instead of having Separate SID tables for linking the dimension and fact tables why cant we make the DIMENSION table generic and keep them out of the infocube so that we can same the same dimension table for many infocube in this case we wont need SID tables.
suppose i have one info cube which has dimension vendor material and customer and its keyfigure is quantity and price and i have a separate infocube which has dimesnion material customer and location and its key figure is something else ......so here in why cant i keep the dimensions out of the infocube and use the dimension material customer for both infocube.

Your dimension tables are filled based on your transaction data - which is why dimension table design is very important you decide to group related data for the incoming transaction data into your dimension tables .
The dimension tables have SIDs which in turn point to master data = in the classic star schema - the dimension tables are outside the cube but the dim tables have the master data within them whhich is overcome using the extended star schema.
The reason why dimension tables can be reused is that the dim IDs and SIDs in the simension table correspond to the transaction data in the cube - and unless the dim IDs in both your cubes match you cannot reuse the dim tables - which means that you have exactly the same data in both the cubes - which means you need not have two cubes with the same data.
Example :
Cube 1 : Fact Table
Dim1ID | DIM2ID | KF1
1|01|100
2|02|200
Dimension Table : Dim 1 ( Assumin that there are 2 characteristics in this dimension ) - here the DIM1ID is Key
Dim1ID | SID1 | SID2
1|20|25
2|30|35
Dimension Table Dim 2 - Here the Dim2ID field is key
Dim2ID| SID1 | SID2| SID3
01| 30| 45
02|45|40
Here the Dim IDs for the cube Fact table are generated at the time of load and this is generated from the NRIV Table ( read material on Number Ranges ) - this meanns that you cannot control DIM ID generation across cubes which means that you cannot reuse Dimension Tables

Schema Design for Worklist Application - best practice?

Hello,
we are designing the Schema for a workflow application now. I'm wondering what kind of XML Schema would be best suited for the JSP generation of the Workflow Wizard.
So far I've found out with some tests (please correct me if I'm wrong):
- Only elements will be mapped to JSP fields, not attributes
- If elements have single-letter name, the field label will be eliminated totally in JSP (bug?!)
- For EVERY parent node, an HTML table is generated in the JSP containing all the simple nodes in the parent. If a parent node contains another parent node, both tables will be generated on the same level.
And I haven't found any way to create drop-down list or checkbox/radiobuttons out of the XSD definition (enumeration as element type).
I would really appreciate it if someone could share some experience in this area, many thanks in advance!
regards
ZHU Jia

Hello,
we are designing the Schema for a workflow application now. I'm wondering what kind of XML Schema would be best suited for the JSP generation of the Workflow Wizard.
So far I've found out with some tests (please correct me if I'm wrong):
- Only elements will be mapped to JSP fields, not attributes
- If elements have single-letter name, the field label will be eliminated totally in JSP (bug?!)
- For EVERY parent node, an HTML table is generated in the JSP containing all the simple nodes in the parent. If a parent node contains another parent node, both tables will be generated on the same level.
And I haven't found any way to create drop-down list or checkbox/radiobuttons out of the XSD definition (enumeration as element type).
I would really appreciate it if someone could share some experience in this area, many thanks in advance!
regards
ZHU Jia

Practical universe schema design for ad hoc reporting in web intelligence

Hello Folks,
I am in the initial design phase of creating a universe out of normalized tables in oracle database. This current set of table are outside our data warehouse methodology and work flows. The new Universe will be used for ad hoc query by limited users. There are about 25-30 tables with employee data/attributes (mostly HR data). Since these tables are all dimensions with employee information on various subjects like education,address, training,*employee records* etc, what should be my join strategy with the existing table schema? where is concept of fact table?. Would you suggest any denormalizing/derived or materialized view to get the right end results. Or do you see any ETL process required before starting this task? My main concern is configuring joins between the tables and performance issue due to many joins in the current physical model. Additionally, i am concerned with employee records component in the structure, as each record of an employee may have multiple event history. How would you handle such a situation (maybe create a seperate context with the main factless fact Employee table??)
I will appreciate your insight and approach to tackle the initial planning phase of this project.
Thanks

...due to the fact that with ad-hoc reports, the links, joins, cardinalities etc may differ from report to report depending on what each individual report would require.
Cardinalities are part of the data model, they should not change based on report requirements.
As far as the rest, yes, designing a flexible universe can be challenging. You have the option to set up different join paths (called contexts) for different functional areas, but in some cases it just makes sense to build more than one universe on top of the same data structures.
For an example, consider a very simple case where there is a relationship between an employee and the company motor pool (collection of company cars). The HR person wants to see all people even if they don't have cars assigned to them, so they would require an outer join from Employee to Car. The motor pool manager wants to see all cars, even those that are not currently assigned to a person, so they would require an outer join from Car to Employee. These two requirements are contradictory, and so cannot be designed into a single universe. That's not a problem, it's simply something that needs to be recognized and responded to. An HR person is not likely to care about when the next oil change is due, and the motor pool manager probably does not care about the hire date for a particular person.
Web Intelligence makes an excellent ad hoc query engine, but it does require some investment in a proper universe structure.

STAR schema designing

Hi,
What are the factors or the things that we should consider while designing star schema ?
Thanks
Vaishali

Vaishali,
The major things to be considered while designing start could be ..
1. Proper maintenance of Master data which will be shared across all the infocubes.
2. Deciding upon dimensions. Which characteristics should be assigned to which dimension? Try to reduce the number of dimensions.
3. Design deimensions based upon the characteristic relation 1:M...
4. If the char has more no of values for eg, document number which come in huge volumes to BW that can be designed as Line item dimension instead of assigning it to a dimension.....
Hope this helps you.....

Drag and Drop to DataSet Schema Designer?

I don't seem to be able to drag and drop a table from the Oracle Explorer to the DataSet designer in Visual Studio 2005 (to automate creation of table adapters, relationships,etc.) ..> I downloaded and installed the new release version (I was previously using beta) and it is still not allowing this functionality, is this functionality supported?

I believe that this is not supported. However, you can drag a table from the oracle explorer onto a form which will result in the creation of a dataadapter. If you then right-click on the adapter and choose generate dataset then this will cause a typed dataset to be generated which can then be used as a datasource.

Download Dimensional Modeling Book (Star Schema Design Book)

Hello Friends,
You can download an IBM Book on Dimensional Modeling from the following
link:
http://www.redbooks.ibm.com/abstracts/sg247138.html?Open
This is an excellent IBM Redbook on Data warehouse design and
Dimensional Modeling design.
Great to read,
Dave

Dear Krish,
Please try this link and let me know if you can open.If not I will email you the Book:
http://www.redbooks.ibm.com/abstracts/sg247138.html?Open
My Email is [email protected]
Thanks
Dave

Reg Snow Flake schema design

Hi Experts,
Can any one post few scenarios regarding Implementation of snow flake schema which can not be converted to star schema in BMM layer for better under standing about schemas. I searched my blogs but i did not found exact answer.
Regards,
Rafi

Rafi,
Check these links
http://iniu.net/content/obiee-define-star-schema-over-snowflake-data-model-data-source
http://www.varanasisaichand.com/2012/05/denormalizing-physical-tables-in-bmm.html
http://majendi.blogspot.com/2009/01/obiee-snowflakes-and-stars-part-3.html
http://blogs.datadirect.com/2012/02/obiee-oracle-business-intelligence-integration-with-salesforce-com-crm-and-database-com-via-odbc.html
In general if you follow the OBI best practices you never get snowflake schema in BMM layer.
If helps pls mark

ADAM schema design - newbie help!!

I have a requirement to make one of our application directory enabled with
ActiveDirectory Application Domain(ADAM). The application has to store the user
and their profiles in ADAM. The requirement is that
- there is a Network which is divided into 5 area centers
- at each level there are users like Admin,Manager,Operator etc
- There are a set of profiles available for users at every level
An g. profile for an operator at network level looks like view, search
equipment objects in the whole network (Nocc_OPR)
An eg. Profile for an admin user at the network level looks something
like all operations possible by an operator at network level plus
add, modify equipment objects in the whole network (Nocc_ADM)
Where equipment objects are objects in our application
An eg. Profile for an operator at area center level looks like view, search
equipment objects with the area center (Area1_OPR)
�     Create a top node (MyOrg) and create the following under the top node
o     5 area centers as containers
o     Admin, Manager,operator, ViewOnlyOperator, AtmSimUsr, VPN Owner, DutyOfficer, TrainingCenterLead as Groups
                    NOCC
                    |------------AreaCenter1
                    |------------ AreaCenter2
                    |------------ AreaCenter3
                    |------------ AreaCenter4
                    |------------ AreaCenter5
                    |------------NoccAdmin
                    |------------NoccOperator
�     Under every area center create a group for each user group type and thus create the following
o     Under AreaCenter1, create Area1-Manager, Area1-Operator group.
Under AreaCenter2, creaArea2-Manager, Area2-Operator group
�     Create privilege set as group under top node and under every area center. Attach the attributes to respective privilege group and assign the privilege group to the respective Active directory group.
o     NOCC
|-------Nocc_ADM (Privilege group)
|-------Nocc_OPR
o     AreaCenter1
     |--------Area1-Operator
          |--------Area1_ OPR
Now my question is ,
1)     While creating the profiles as a Group class, should I create the profile specific stuff as attributes. Eg. viewNetwork , modify network as new attributes??
2)     If so ,is the default schema that comes with ADAM enough or should I extend the schema and how do go about it??
Since Iam a novice using ADAM, any help in this area would be greatly appreciated.I did go through the admin, step-by-step guide. But I could not get the specific answer that Iam looking for.

There are actually techniques you could use to keep all the information about an article in the same object. This may be attractive in particular if the information is rarely updated (frequently updating a large object is costly and, unless every attribute changes with every update, breaking up the object graph making some of the objects into separate cache items is then preferable).
With the later Coherence releases there are for instance PofExtractor that allow you to extract selected parts of an object without de-serializing the whole object. You could probably use this to only extract the "price list"for a product. Combine this with a custom aggregator (that aggregates over all products a customer want to get a quote on) that could extract just that customers price from the "price list" and you would have a quite efficient solution...
As for indexes you COULD put the price list and other info from the large object in indexes but be aware that Coherence indexes are always stored on heap (other data can nowadays be stored off-heap) and also occupy a lot of space (Coherence always creates both index and reverse index and since Java objects are used to implement them there is quite a lot of overhead)... I would first look into either a 3NF-like solution with mainly primary indexes or a single cacnhe solution using PofExtractors etc...
/Magnus

Basic schema design and security mechanisms for slowing down bandwidth

Hi to all!
At first I am sorry for a lot of noob questions - I am just beginner in networking.
I have LAN with 1 SW (cisco catalyst 2950 series), 1 R (cisco 2501), one Apache server on Linux machine (Fedora) and 5 computers . My task is to test my application for preventing DoS attacks on the computer with Apache. My network design is on the image, but if will be necessery, I can change it (I can use more switches and routers like this). So my noob questions are:
1.) will this desing work? How can I connect these to LANs to router? do I need one more router? can I connect SW ethernet port to router's console port?
2.) I have erased SW and R configuration. I have configured only interfaces and RIP protocol with networks 10.0.0.0/8 and 192.168.0.0/24. what else I need to configure for making possible viewing webpage from computer with apache on other computer?
3.) what is "ip http server" setting?
4.) i need to send TCP, UDP, HTTP and ICMP packets from computers to apache (is it default allowed?).
5.) i need to use all bandwidth for DoS attack, so i need to disable security mechanisms (configurations are erased, so what else do i need to disable or set up?) I heard only about storm-control, but it is disabled.
6.) do I need to setup something like this for full speed on devices?
interface range fa 0/1 - 3
speed 100
duplex full
7.) last question is, I want to monitor protocols and ports of packets sent from computers to apache computer or bandwidth usage (bits/s). Does have SW/R some mechanisms for statistics like this?
Thank you very much.
Matej

Matej Mihalech wrote:Hi to all!At first I am sorry for a lot of noob questions - I am just beginner in networking.I have LAN with 1 SW (cisco catalyst 2950 series), 1 R (cisco 2501), one Apache server on Linux machine (Fedora) and 5 computers . My task is to test my application for preventing DoS attacks on the computer with Apache. My network design is on the image, but if will be necessery, I can change it (I can use more switches and routers like this). So my noob questions are:1.) will this desing work? How can I connect these to LANs to router? do I need one more router? can I connect SW ethernet port to router's console port?2.) I have erased SW and R configuration. I have configured only interfaces and RIP protocol with networks 10.0.0.0/8 and 192.168.0.0/24. what else I need to configure for making possible viewing webpage from computer with apache on other computer?3.) what is "ip http server" setting?4.) i need to send TCP, UDP, HTTP and ICMP packets from computers to apache (is it default allowed?).5.) i need to use all bandwidth for DoS attack, so i need to disable security mechanisms (configurations are erased, so what else do i need to disable or set up?) I heard only about storm-control, but it is disabled.6.) do I need to setup something like this for full speed on devices? interface range fa 0/1 - 3speed 100duplex full7.) last question is, I want to monitor protocols and ports of packets sent from computers to apache computer or bandwidth usage (bits/s). Does have SW/R some mechanisms for statistics like this?Thank you very much.Matej
The 2950 switch and 2501 router are pretty old, low specification devices, so you might run into performance problems. Be aware of this. The 2950 also is not, from memory, a layer 3 switch, so it does *no* routing.
To answer your questions 9I'm assuming some basic knowlege of how to use IOS, so these commands are indicative only).
The 2501 has only one ethernet port, so you can't connect the way you have in your diagram. Youc an not connect an ethernet port to the router console port - the console port is a serial connection, by default running at 9600/8N1, and is not convertable to ethernet.
To make your required network work, you'd need to do the following.
1) Configure your 2501 ethernet port for dot1q VLAN trunking by doing something like this
interface fastethernet0
no shutdown
speed 100
duplex full
no ip address
interface fastethernet0.2
encapsulation dot1q 2
ip address 10.0.0.4 255.0.0.0
interface fastethernet0.3
encapsulation dot1q 3
ip address 192.168.0.1 255.255.255.0
Setup in this manner you don't need routing protocols such as RIP because both routes will be directly connected, and the router will know how to get between them without anything fancy.
Then connect the ethernet interface of your 2501 to a port on your 2950 switch - I'll assume it's a 24 port switch, so I'll use interface f0/24
Create VLAN's 2 & 3 for your devices by doing this (2950 is so old the IOS method us creating VLAN's won't work, from memory)
vlan database
vlan 2 name workstations
vlan 3 name server
interface f0/24
switchport trunk encapsulation dot1q
switchport mode trunk
speed 100
duplex full
switchport trunk allowed vlans 2-3
You can create a VLAN interface for management of your switch at the same time if you like
interface vlan2
ip address 10.0.0.7 255.0.0.0
no shutdown
Then connect your devices. You will need to configure each switchport into an appropriate VLAN - for example, if you are connecting your server to port f0/23
interface f0/23
switchport mode access
spanning-tree portfas
switchport access vlan 3
Use "switchport access vlan2" for your workstation ports.
The "ip http server" setting on switches/routers enables management via the web - on these old devices, turn it off, as it's next to useless. Type "no ip http server" in configuration mode.
There is no packet filtering or security enabled on these devices by default, so you can just sling whatever you like at the Apache server.
Unfortunately, owing to the fact you only have one ethernet port to uplink to the router, you will never be able to saturate the server. The best you will manage is 50 megabits per second (half in, half out) because you have to trunk back to the switch to get to the server. If you really need to flood the server, you either need a better router (one wit two ethernet ports) or a layer-3 capable switch (so you can eliminate the trunk and just use the in-built routing capabilities between subnets).
And finally - you won't be able to monitor protocols/ports using this hardware. You *could* setup a MONITOR/MIRROR port and use a separate PC running wireshark or something to monitor the trunk port, but that'd need additional hardware (PC's), and a bit more configuration.
Phew. Hope that helps a bit. Basically, to do the loading you want, you need better/different hardware, but you can come close with what you've got.
Cheers.

Schema Design

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