Got it

What do TOR, EOR and MOR mean?

Latest reply: May 19, 2022 09:26:03 13792 18 20 0 1

Hi there,

As some of you might be curious about the TOR, EOR, and MOR, and as well as the difference between them. In this post, I'll explain what TOR, EOR, and MOR mean, with reference to the layout of the data center switches. Please see below.

TOR (TOP OF RACK)

Literally, it is not difficult to understand. The TOR switch is deployed on the top of the cabinet. The servers in the cabinet are connected to the switch through optical fibers or network lines, and the switch is connected to the upper convergent switch. In this case, it is suitable for the situation of more access equipment or a high density of single cabinet equipment. 

Through distributed access, the connection between the server cabinet and the network cabinet can be reduced, and connection management is simple. But at the same time, access switches are scattered in multiple cabinets, which is not conducive to centralized maintenance and management of switches.

EOR (END OF ROW) 

EOR refers to the centralized deployment of access switches in one or two cabinets at the end of each cabinet, where all servers are connected to the switch through horizontal routes. 

This situation is more common - by using EOR method to connect, there will be a large number of cable connections from multiple server cabinets converged into the network cabinet, connection management is difficult, but the centralized maintenance and management of switches is convenient.

MOR (MIDDLE OF ROW)

The connection mode of MOR switch is similar to the EOR mode. Access switches are deployed in one or two cabinets of a cabinet group through the centralized mode. Only the location of the network cabinet is in the middle of the cabinet group. In this case, the connection between the server cabinet and the network cabinet will be simplified. 

At the same time, the switch has been centralized management, which is a compromise between TOR and EOR.

This would be what TOR, EOR, and MOR mean.

  • x
  • convention:

chenhui
Admin Created Oct 19, 2021 01:38:17

  • x
  • convention:

DDSN
Admin Created Jan 28, 2022 11:15:40

For more information on TOR switches, you can refer to the post.

What are the differences between TOR switches and common switches


View more
  • x
  • convention:

Jessica_Tian
Created Dec 5, 2018 05:37:40

learning it
View more
  • x
  • convention:

EL.BODO
EL.BODO Created Jun 26, 2021 18:21:57 (0) (0)
✌  
user_2915719
Created Dec 12, 2018 01:29:22

Glamorous terms, easy to understand What do TOR, EOR and MOR mean?-2818759-1
View more
  • x
  • convention:

Serges_armel
Serges_armel Created Jun 26, 2021 12:24:24 (0) (0)
 
IsraelGut
Created Dec 13, 2018 16:43:00

Good post, with so many abbreviations it is easy to be confused.
View more
  • x
  • convention:

Finn92
Created Dec 14, 2018 08:01:32

hello author
it's a wonderful post , thank you .
if you can share more examples , will be better .
View more
  • x
  • convention:

EL.BODO
EL.BODO Created Jun 26, 2021 18:22:26 (0) (0)
✌  
chenhui
Admin Created Jun 26, 2021 09:02:27

Nice and clear!
View more
  • x
  • convention:

Serges_armel
Created Jun 26, 2021 12:25:07

clear What do TOR, EOR and MOR mean?-4000905-1
View more
  • x
  • convention:

andersoncf1
MVE Author Created Jun 26, 2021 16:19:35

Well done! Thanks for sharing
View more
  • x
  • convention:

EL.BODO
Created Jun 26, 2021 18:23:40

Exactly thanks
View more
  • x
  • convention:

EL.BODO
Created Jun 26, 2021 18:24:32

View more
  • x
  • convention:

12
Back to list

Comment

You need to log in to comment to the post Login | Register
Comment

Notice: To protect the legitimate rights and interests of you, the community, and third parties, do not release content that may bring legal risks to all parties, including but are not limited to the following:
  • Politically sensitive content
  • Content concerning pornography, gambling, and drug abuse
  • Content that may disclose or infringe upon others ' commercial secrets, intellectual properties, including trade marks, copyrights, and patents, and personal privacy
Do not share your account and password with others. All operations performed using your account will be regarded as your own actions and all consequences arising therefrom will be borne by you. For details, see " User Agreement."

My Followers

Login and enjoy all the member benefits

Login

Block
Are you sure to block this user?
Users on your blacklist cannot comment on your post,cannot mention you, cannot send you private messages.
Reminder
Please bind your phone number to obtain invitation bonus.
Information Protection Guide
Thanks for using Huawei Enterprise Support Community! We will help you learn how we collect, use, store and share your personal information and the rights you have in accordance with Privacy Policy and User Agreement.