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Crossover connection between servers

 
 
George
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      02-13-2006, 07:41 PM
We are working on a project that will involve 2 servers (2003 and 2000
advanced) to connect via cross over cable and regular cable to the switch.
This came up as our ERP vendor recomends connecting App server (2003) to
connect to the database server (2000 advanced server with SQL 2000 on it) via
direct cross over cable. That is all nice but both servers will have regular
connection to the same switch. My job is to make sure all of the traffic
between these two is going only though the cross over (the idea is to have
the cross over on the /30 subnet so only 2 hosts are possible). Do I need to
play with routing and network cards or this will just work?! I will have 2
nics with 2 1GB ports each. Each card will be teamed so it will form 2 2GB
connections one for cross and one for regular traffic to switch. Any help is
greatly appreciated.
 
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Troy
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      02-13-2006, 07:59 PM
You'll want to set your LAN connection with a default gateway for the virtual
network team. That way all of your IP traffic will go out of that team
interface. Then configure the crossover adapter's team address with no
default gateway. No traffic other than the crossover's subnet will go over
this link.

"George" wrote:

> We are working on a project that will involve 2 servers (2003 and 2000
> advanced) to connect via cross over cable and regular cable to the switch.
> This came up as our ERP vendor recomends connecting App server (2003) to
> connect to the database server (2000 advanced server with SQL 2000 on it) via
> direct cross over cable. That is all nice but both servers will have regular
> connection to the same switch. My job is to make sure all of the traffic
> between these two is going only though the cross over (the idea is to have
> the cross over on the /30 subnet so only 2 hosts are possible). Do I need to
> play with routing and network cards or this will just work?! I will have 2
> nics with 2 1GB ports each. Each card will be teamed so it will form 2 2GB
> connections one for cross and one for regular traffic to switch. Any help is
> greatly appreciated.

 
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Troy
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      02-13-2006, 08:21 PM
Sorry, you can also set a static route to the IP of the crossover destination
to avoid broadcasts.

"Troy" wrote:

> You'll want to set your LAN connection with a default gateway for the virtual
> network team. That way all of your IP traffic will go out of that team
> interface. Then configure the crossover adapter's team address with no
> default gateway. No traffic other than the crossover's subnet will go over
> this link.
>
> "George" wrote:
>
> > We are working on a project that will involve 2 servers (2003 and 2000
> > advanced) to connect via cross over cable and regular cable to the switch.
> > This came up as our ERP vendor recomends connecting App server (2003) to
> > connect to the database server (2000 advanced server with SQL 2000 on it) via
> > direct cross over cable. That is all nice but both servers will have regular
> > connection to the same switch. My job is to make sure all of the traffic
> > between these two is going only though the cross over (the idea is to have
> > the cross over on the /30 subnet so only 2 hosts are possible). Do I need to
> > play with routing and network cards or this will just work?! I will have 2
> > nics with 2 1GB ports each. Each card will be teamed so it will form 2 2GB
> > connections one for cross and one for regular traffic to switch. Any help is
> > greatly appreciated.

 
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George
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      02-13-2006, 08:34 PM
Ok I thik I got it but still I am confused if LAN is what you refer to as a
connection to the switch? If yes, then my Team to Switch will have default
gateway of the IP of the TEAM to Crossover??? Static route makes sense. I
would still need to have connectivity to the network via switch (TEAM TO
SWITCH) but only, only communications between the app and the sql will go
over the cross (TEAM TO CROSS).



"Troy" wrote:

> You'll want to set your LAN connection with a default gateway for the virtual
> network team. That way all of your IP traffic will go out of that team
> interface. Then configure the crossover adapter's team address with no
> default gateway. No traffic other than the crossover's subnet will go over
> this link.
>
> "George" wrote:
>
> > We are working on a project that will involve 2 servers (2003 and 2000
> > advanced) to connect via cross over cable and regular cable to the switch.
> > This came up as our ERP vendor recomends connecting App server (2003) to
> > connect to the database server (2000 advanced server with SQL 2000 on it) via
> > direct cross over cable. That is all nice but both servers will have regular
> > connection to the same switch. My job is to make sure all of the traffic
> > between these two is going only though the cross over (the idea is to have
> > the cross over on the /30 subnet so only 2 hosts are possible). Do I need to
> > play with routing and network cards or this will just work?! I will have 2
> > nics with 2 1GB ports each. Each card will be teamed so it will form 2 2GB
> > connections one for cross and one for regular traffic to switch. Any help is
> > greatly appreciated.

 
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Troy
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Posts: n/a

 
      02-13-2006, 08:43 PM
Team(1) to switch will have the default gateway of the router behind your
switch in your production environment.
Team(2) to crossover will have the static route and no default gateway to
just the db server's IP (preferrably something not routable on your
production environment).

"George" wrote:

> Ok I thik I got it but still I am confused if LAN is what you refer to as a
> connection to the switch? If yes, then my Team to Switch will have default
> gateway of the IP of the TEAM to Crossover??? Static route makes sense. I
> would still need to have connectivity to the network via switch (TEAM TO
> SWITCH) but only, only communications between the app and the sql will go
> over the cross (TEAM TO CROSS).
>
>
>
> "Troy" wrote:
>
> > You'll want to set your LAN connection with a default gateway for the virtual
> > network team. That way all of your IP traffic will go out of that team
> > interface. Then configure the crossover adapter's team address with no
> > default gateway. No traffic other than the crossover's subnet will go over
> > this link.
> >
> > "George" wrote:
> >
> > > We are working on a project that will involve 2 servers (2003 and 2000
> > > advanced) to connect via cross over cable and regular cable to the switch.
> > > This came up as our ERP vendor recomends connecting App server (2003) to
> > > connect to the database server (2000 advanced server with SQL 2000 on it) via
> > > direct cross over cable. That is all nice but both servers will have regular
> > > connection to the same switch. My job is to make sure all of the traffic
> > > between these two is going only though the cross over (the idea is to have
> > > the cross over on the /30 subnet so only 2 hosts are possible). Do I need to
> > > play with routing and network cards or this will just work?! I will have 2
> > > nics with 2 1GB ports each. Each card will be teamed so it will form 2 2GB
> > > connections one for cross and one for regular traffic to switch. Any help is
> > > greatly appreciated.

 
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