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chico

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Hi Everyone

We have a server that has dual Ethernet ports. The server is acting as a domain server and file server.

What are the pro's and con's on the following;

1) run single port with static ip address
2) run dual ports with static ip address
3) or bridge the two ports.

Do you get better performance running with 2x Ethernet ports or bridging the 2x Ethernet ports.

Thanks for you feedback.
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Donato

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Are there 2 separate network cards in the server? Do they have 2 different IP address? I wouldn't bridge them. I would always use static IP addresses on a server. 
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cj_berlin

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Hi,

if by "domain server" you actually mean "domain controller", I would like to discourage you from assigning multiple IP configurations to the server. Instead, assuming the OS is 2012 or later, you should use the built-in NIC teaming, either the switch-independent variety or, if you're comfortable with that, LACP. Assign a static IP config to the team.

You will most probably get better performance and, if you connect the two ports to different switches, definitely better availability than using miultiple IP addresses.

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chico

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Quote:
Originally Posted by Donato
Are there 2 separate network cards in the server? Do they have 2 different IP address? I wouldn't bridge them. I would always use static IP addresses on a server. 


Yes the server has 2x separate Ethernet ports. The server is currently running off only one Ethernet port with static ip address.
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wkasdo

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+1 built-in teaming.
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Pieter

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Stuff to read :

Windows Server 2012 R2 NIC Teaming User Guide
https://gallery.technet.microsoft.com/windows-server-2012-r2-nic-85aa1318

Windows Server 2016: NIC Teaming functionality
https://www.starwindsoftware.com/blog/windows-server-2016-nic-teaming-functionality



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Donato

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Quote:
Yes the server has 2x separate Ethernet ports.

It's still not clear. Are both ports on the same NIC or are there 2 separate NICs?
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chico

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Quote:
Originally Posted by Donato

It's still not clear. Are both ports on the same NIC or are there 2 separate NICs?


Yes two separate (Intel(R) I210 Gigabit Network Connection) build in (on motherboard).

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wobble_wobble

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+1 on Microsoft Teaming
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chico

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Hi Everyone

Thanks for your feedback, its been a big help.

Question: when you have the 2x Ethernet ports and assign static ip address to them and then you enable the +1 build-in Teaming.

What happens to the ip address you assign to them. Does it stay as a static ip address?
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Pieter

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Reply with quote  #11 
They disappear.

Example for 2 physical NICs :
NIC1 = 172.168.1.1
NIC2 = 172.168.1.2

Create NIC Teaming => third NIC appears
NIC_TEAM = 172.168.1.3 or whatever you choose.
NIC1 and NIC will loose their binding with the TCP protocols :
minasi.jpg 


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chico

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So if I understand this, NIC Teaming is it not the same as bridging the Ethernet ports.
But a newer method?
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Pieter

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Reply with quote  #13 
Yes is different from bridging, and serves a different purpose.

See http://www.neoseeker.com/forums/62/t1281092-teaming-bridging/



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Pieter Demeulemeester
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chico

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Reply with quote  #14 
Thanks for the link it help me understand the difference.

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cspanburgh

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Reply with quote  #15 
I love these nuggets of Networking wisdom on the site.  Great thread folks.


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