question

Al-Amran avatar image
0 Votes"
Al-Amran asked joyceshen-MSFT commented

Impact/Dependencies of changing 1G MAPI NIC card of all 3 DC exchange Servers | DC-Site

We want to change 1G MAPI NIC card of all 3 DC exchange Server. Here I am attaching the network diagram of each Exchange Server.

Host Type: Physical Server
OS: Windows Server 2019
NIC Teaming: Windows Server 2019

163369-image.png




If we change the NIC of 1G to 10G, NIC teaming will be changed?
If we change the NIC of 1G to 10G, NIC teaming will break?

office-exchange-server-administrationoffice-exchange-online-itprooffice-exchange-server-connectivityoffice-exchange-server-ha
image.png (13.3 KiB)
· 1
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Hi @Al-Amran

Do suggestions below help? Any progress so far and do you have other concerns about your issue?


If an Answer is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.




0 Votes 0 ·
AndyDavid avatar image
0 Votes"
AndyDavid answered AndyDavid edited

As long as you are running the Teamed NICs in a supported fashion it should be fine.

Are these servers in a database availability group? If so, I would activate databases to other servers then make the change.

Note that in many cases, Teaming NICs is not really needed if using a Database Avail Group:

https://docs.microsoft.com/en-us/exchange/high-availability/plan-ha?view=exchserver-2019


163462-image.png


If these are stand-alone servers, then I would make the change off-hours in case a reboot is needed (or services get hung )



image.png (13.3 KiB)
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

AndyDavid avatar image
0 Votes"
AndyDavid answered Al-Amran commented

See:
https://social.technet.microsoft.com/Forums/en-US/31c4e42c-5b21-4b72-a294-79950b9c67ca/nic-teaming-1gb-and-10gb?forum=winservergen#:~:text=Teaming%20of%20NICs%20with%20different,the%20speeds%20of%20the%20connections.

Teaming of NICs capable of operating at different speeds but presently operating at the same speed is supported, e.g., a 10 Gbps NIC operating as a 1Gbps NIC may be teamed with another NIC operating at 1Gbps.

Teaming of NICs with different speed connections is not supported.

The teaming software will allow you to build such a team; however the traffic distribution algorithms in this release do not base the distribution on the speeds of the connections. A team consisting of a 10Gbps NIC and a 100Mbps NIC will send approximately half of the traffic to each NIC.







· 1
5 |1600 characters needed characters left characters exceeded

Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total.

Hi @AndyDavid ,

Thanks for your reply.

Our Exchange server mail service is running in Production which is very essential for our business. Currently, our NIC teaming (1Gbps with 10Gbps) is operating at the speed of 1Gbps. So we have decided to change the 1Gbps NIC card from the team.

  1. What is the impact of the Exchange Mail service?

  2. Is there any downtime required to interrupt the mail service?


0 Votes 0 ·