Does Gigabit degrade all ports to 100 megabit if there is a 100 megabit device attached?

Posted by hjoelr on Server Fault See other posts from Server Fault or by hjoelr
Published on 2010-04-09T13:15:44Z Indexed on 2010/04/09 13:23 UTC
Read the original article Hit count: 341

Filed under:

gigabit-ethernet

|

switch

|

network-speed

Our company is buying some HP Procurve managed gigabit switches to replace some of our core switches. However, we aren't able to upgrade all of our switches from 100Mb to Gigabit switches. I think I know the answer but I'm not exactly sure. If we plug those 100Mb switches (or even a 100Mb device) into those Gigabit switches, will the performance of the entire switch drop to 100Mb or will just that one port work at 100Mb?

© Server Fault or respective owner

Related posts about gigabit-ethernet

check if my ethernet controller supports gigabit Ethernet

as seen on Super User - Search for 'Super User'
is there a command that i can issue in ubuntu to see explicitly if my ethernet controller supports gigabit ethernet? >>> More
Long Gigabit Ethernet Run

as seen on Server Fault - Search for 'Server Fault'
I am trying to get an Gig-E network between two buildings that are approximately 260 ft. away. While some TRENDnet switches failed to be able to connect to each other over Cat 6 at that distance, two Netgear 5-port Gig-E switches do so just fine. However, it still fails after I put in place APC PNET1GB… >>> More
Why maximum 1.0 Gbit Ethernet connection an old notebook, and only 100 Mbit on newer faster computer

as seen on Super User - Search for 'Super User'
Strange problem about Ethernet speed: recently we bought an i7 core computer running Win7 64 bit with an onboard Gigabit Ethernet controller (Realtek PCIe Gbit Ethernet Family controller). Connecting this new fast pc directly to our brand new ASUS Gigabit Ethernet router via CAT6 cable(!) shows… >>> More
Linux/bsd tcp load balancing with 10 gigabit ethernet

as seen on Server Fault - Search for 'Server Fault'
Okay, I've been looking at layer 4 load balancing solutions for 10 gigabit links. I need the following properties Works at 10Gig ethernet speeds. Can support long live tcp connections. up to 1mil live tcp connections. Balancer not involved in the return path. Fault tolerant with tcp session… >>> More
ARM processor for gigabit ethernet

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi Geeks, I am working on a project which is a handheld device to do some measurements on IP packets. So I need to process the packets by my processor. I am planning use ARM processor for this project. Can anybody suggest if ARM is the right choice for packet processing of Gigabit range? >>> More

Related posts about switch

Problem connecting a 3Com 2952-Plus switch to a Cisco 3750 switch

as seen on Server Fault - Search for 'Server Fault'
Connected a 3Com 2952-SFP Plus switch to a Cisco 3750 switch via fibre. There is a light on the 3Com end, but nothing at the Cisco end, and no traffic will flow. Have swapped SFP's, have swapped fibre cables, have used a different port on the Cisco, have even swapped the 3Com switch, but still no… >>> More
enable Cisco switch to communicate withe HP switch

as seen on Server Fault - Search for 'Server Fault'
I have one CISCO 2906g and hp 2626 switches i link them by MM fiber optic cable, the problem the cant communicate with each other, i verify there is no problem with cable and JBC's. win i connect other HP switch in the other end it will communicate without any problem, but not with CISCO >>> More
SQL Server database with clustered GUID PKs - switch clustered index or switch to sequential (comb)

as seen on Stack Overflow - Search for 'Stack Overflow'
We have a database in which all the PKs are GUIDs, and most of the PKs are also the clustered index for the table. We know that this is bad (due to the random nature of GUIDs). So, it seems there are basically two options here (short of throwing out GUIDs as PKs altogether, which we cannot do (at… >>> More
Repository pattern - Switch out the database and switch in XML files

as seen on Stack Overflow - Search for 'Stack Overflow'
Repository pattern - Switch out the database and switch in XML files. Hello I have an asp.net MVC 2.0 project and I have followed the Repository pattern. Periodically, I am losing access to the database server so I want to have another mechanism in place (XML files) to continue developing. It is… >>> More
MS SQL Database with clustered GUID PKs - switch clustered index or switch to sequential (comb) GUID

as seen on Stack Overflow - Search for 'Stack Overflow'
We have a database in which all the PKs are GUIDs, and most of the PKs are also the clustered index for the table. We know that this is bad (due to the random nature of GUIDs). So, it seems there are basically two options here (short of throwing out GUIDs as PKs altogether, which we cannot do (at… >>> More