Ethernet at 1000 Mb/s (1 Gb/s). Can be over copper or fiber. There are different types of fiber.

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Web server to DB server connection speed [closed]

we are designing a cluster of 2xnginx, 2xapache, 2xmemcache, 2xmysql servers for a high traffic web site. Current web site runs on 1 dedicated web server and 1 dedicated db server. the current web ...
2
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3answers
6k views

iSCSI Transfer Rate Using Standard Gigabit Networking

We just purchased a dell storage server with (12) 7200 RPM SATA drives running RAID 10 and (4) gigabit network interface cards. Additionally it has a PERC H700 controller card with 512MB of on-board ...
2
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5answers
491 views

Cisco 3750 Gigabit ports

I'm looking for Cisco switches that provide 48 Gigabit ports. I've been through this list : CISCO PRODUCT REFERENCE and this one: DETAIL 3750 SWITCHES But there's something I don't understand: ...
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2answers
3k views

Best practice to trunk two GB switches?

I already read some similar questions but I still have no clue on how to do it the right way. I have a D-Link DGS-1248T 48 port GB-switch with 4 mini GBIC ports and I want to connect it to another ...
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2answers
602 views

Link Aggregation And Jumbo Frames configured but not working

I have a netgear GS110TP smart POE switch which is connected to a dual port INTEL PRO/1000PT with static link aggregation configured on the switch and PC side. The network card and switch recognize ...
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1answer
1k views

What is theoretical maximum of TCP traffic over GigaEthernet?

What is theoretical maximum of TCP traffic over GigaEthernet ?
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2answers
788 views

Slow network transfer on gigabit between Win7 and Unbuntu Samba (26 MB/s)

I have slow network transfer speed (26 MB/s). The beginning of the transfer started at 120 MB/s and dropped down every second. I am transferring a 350 GB file from an E-Sata (7200rpm) drive mounted ...
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2answers
334 views

Managed switch, what is the purpose of the two gigabit ports?

We have a managed switch that has been installed by phone engineers as part of our new IP phone system. The switch in question is a Nortel 2550T-PWR Ethernet Routing Switch 2550T-PWR with 24 ...
2
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4answers
939 views

Upgrade to gigabit - is it worth it?

We are running two servers with around 30 workstations as follows: 1 x UNIX Server 1 x HP Proliant Server - Windows Server 2008 30 x Windows XP Professional SP3 5 x Axel Thin Clients 16 x Avaya ...
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2answers
2k views

Will 100 Mbps client slow down 1000 Mbps network?

Newbie question: We are planning to setup a LAN in our lab, and are looking at gigabit ethernet switches. A couple of our older computers have 100 Mbps ethernet, will they slow down the whole network ...
3
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1answer
1k views

Intel NIC: VMDc or VMDq?

I need to buy a nic that I want to eventually (~3 months) re-use for a VM server deployment that will need to support heavy network I/O. Server is a Xeon Gulftown/Westmere-EP. Intel has server NICs ...
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4answers
276 views

LAN speeds and firewall/switch connections

I have a small network with about ten users. All workstations flow into a Dell PowerConnect 3424 which then has a single link to a SonicWALL firewall and from there to a cable modem. More important ...
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4answers
1k views

Ethernet switch capacity question

We're looking at hooking up 48 small embedded systems with 10/100 Ethernet ports to an Ethernet switch and then have that switch talk to a server upstream via a faster connection. I have a couple of ...
2
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2answers
191 views

What percentage of its capacity should I aim to run a network at?

First of all, apologies if this is the wrong StackExchange site for this question - it's about Ethernet network capacities, but not specifically about servers etc. I am designing a network for a data ...
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4answers
7k views

Gigabit ethernet generally faster than Firewire 800?

If I want to transfer a large file between two computers, which are connected via LAN, would going through the network (setup as gigabit ethernet) be faster than using a direct Firewire 800 connection ...
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3answers
198 views

How to maximise performance in computers connected into LAN via Gigabit ethernet router?

Our group is setting up a server (which might just be a NAS, but we're not sure yet), which shares files, so that it connects to all other computers in the room (about 10 of them). I am thinking just ...
2
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3answers
1k views

linux router/firewall device with gigabit ports

i am looking for x86 or arm based device to use as linux router/firewall. It schould have 2 or more gigabit ethernet ports enough processing power to filter a gigabit of traffic about 512 MB of RAM ...
6
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3answers
1k views

So what really makes a server grade NIC?

We have a couple servers hosting Citrix VM's. We are planning on adding SAN storage to our network so that we can do the quick migration and high availability thing. The question comes up with ...
3
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4answers
569 views

SAN over Ethernet

We are looking to move our infrastructure from our office to a COLO. Currently we run a rack-mount white-box server using commodity hardware, and ESXi 4 as the hypervisor to power 9 VM's for internal ...
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2answers
1k views

Cisco SG300-28 vs Cisco/Linksys SRW2024 | Managed GB Switches

I'm trying to get a good managed Gigabit switch for our new 1/2 server rack, which will have about 6 servers within the next couple of months, plus firewall. From a pricing standpoint, both of these ...
3
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3answers
188 views

Link mode on unmanaged gigabit switches

I have two RJ45 sockets connected by an inaccessible unknown-category twisted pair cable. I plug two unmanaged gigabit switches into the sockets using Cat6 cables, and they negotiate a 100Mbps link. I ...
6
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6answers
2k views

Windows 2008 Server on mixed ethernet speeds — download from share slow, but fast plain TCP

I have a Windows Server 2008 R2 x64 server that is AD controller and file server. I have a problem that Windows XP clients experience terribly slow (less than 10Mbps, really less than ...
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4answers
24k views

How do I verify the speed of my NIC?

I just installed a new gigabit network interface card (NIC) in Linux. How do I tell if it is really set to gigabit speeds? I see ethtool has an option to set the speed, but I can't seem to figure ...
2
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1answer
204 views

Consumer board for 4* commodity cluster in tetrahedral back-to-back GB-lan topology

I'm not very sure what consumer board to choose for such a configuration. Im planning to build one or more "Beowulf-like cluster" (starting with one for testing), one such cluster consists of four ...
6
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3answers
6k views

Bonding 2 or more Gigabyte NIC together to get 2Gbps performance between 1 server and 1 client?

I have not gotten the server or the NIC yet, but here is the target setup: 1x Server 1x Client 1 or more NIC linked point to point between the Server & Client (No switch involved) So I am ...
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6answers
1k views

Benefits of Gigabit uplink for high traffic webserver?

My question is if our webserver would benefit from having a faster network connection, even if the current 100Mb/s connection is not maxed out. Our webserver is serving around 1.000.000 dynamic ...
4
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4answers
376 views

Source for 1Gbit Ethernet hub [closed]

I know I'm really reaching here, but does anyone know any source for a 1Gbit Ethernet hub? Not a router, not a switch, but a hub. I've been told by the Powers That Be that they shalt not allow any ...
2
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4answers
241 views

High speed network configuration

Sorry if this seems to be a stupid question, I'm not sure how to specify what I want to know when checking google. I will have 2 or 3 devices pumping out data on a 100Base-T port. The combined data ...
3
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2answers
2k views

How to get gigabit network speeds on Windows XP?

We've just installed gigabit switches at work, and things on the Linux side are going well. Our linux boxes, which use a Intel Corporation 82566DM-2 Gigabit nic (according to lspci), consistently get ...
9
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4answers
3k views

How long do managed gigabit ethernet switches take to boot up?

One critical drawback that I have found in researching managed-switches, and one that I have some past experience with is that anything with "lots" of firmware is going to have lots of issues ...
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2answers
2k views

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

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 ...
6
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3answers
455 views

Gigabit capacity

Do gigabit ports have a total throughput of 1 gigabit so that you could be sending 800 mbit and receiving 200 mbit at the same time. Or is it 1000 in and 1000 out?
2
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1answer
5k views

How does Brocade (Foundry) FastIron CX compare to Cisco 3750 stackable switches?

We're considering Brocade's CX series vs. Cisco's 3750 at both core and distribution layers for a new site with gig to desktop, without POE. If you have any hands-on experience with FastIron CX ...
24
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7answers
18k views

What is the minimum ethernet cable length for a CAT6 gigabit connection?

We run a Netgear GS724Tv3 switch and part of the configuration per port is an option for "Lower Power Mode". The documentation for the switch lists this feature as a "Green Ethernet Configuration" ...
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4answers
2k views

Gigabit ports on Dell Powerconnect 2324 never worked

I have a Dell Powerconnect 2324 with Gigabit ports - 24 ports 10/100 ports with 2 Gigabit ports - that never worked. It's supposed to auto-detect everything, but even trying different combinations I ...
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4answers
2k views

GigE ethernet switch backplane bandwidth

While looking for a 16- or 24-port gigabit ethernet switch with at least 6 VLANs and port mirroring (packet duplication to a monitoring port), I came up with three candidates (there are more): Cisco ...
0
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3answers
196 views

Switch Fabric Optimization

How does an ethernet switch work on a port-by-port basis? Specifications are given for the speed of the switch "fabric", but is that universal bandwidth through a central processor or are there ...
4
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3answers
1k views

GigaBit Ethernet Bandwidth send & receive

For a duplex 1 GigBit NIC, [134,217,728 Mbytes], does this mean it can receive AND send both at 134MNBytes per second, which is 268 MByte total capacity; Or Send and Receive share the 134 Mbytes, so ...
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2answers
1k views

Link Aggregation between Xserve G4 running Leopard Server and Netgear GSM7224

I've got a dual 1.33GHz G4 Xserve running Mac OS X 10.5.2 Server (I'll try upgrading to 10.5.7 shortly) with two Gigabit Ethernet NICs that is a backup storage server. I attempted to configure it for ...
0
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5answers
4k views

What are my options in replacing the noisy fan in my Linksys Cisco SRW2008P managed GigE switch?

My first managed GigE switch, the Linksys SRW2008, was a dream, until it started randomly chattering on various ports. That started while I was on the road all the time, which made it take forever to ...
2
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6answers
293 views

information about ethernet cards

I have few question and I don't find right answers. What's the maximum speed of an Ethernet cable (not a phone cable! the one that has 8 threads) About the Gigabit Ethernet Network Card: Is it just ...
3
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6answers
2k views

Are there any vendors making a Gigabit Fiber solution for laptops?

I'm trying to build a laptop system that can connect to just about any network you might come across in a large enterprise. I realize I can use a media converter to go from twisted pair to fiber but ...
3
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2answers
907 views

Cheap gigabit switch? [closed]

Does anyone have any recommendations for a cheap gigabit switch? I'm starting to outgrow my WRT54GL router.
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1answer
224 views

Linux Gigabit driver that survives resume

Currently, I'm using the r8169 driver (Realtek 8169 gigabit ethernet). I tried both the chips on the mainboard and with an external network card. When I boot my PC, the machine comes up with speed = ...
5
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9answers
6k views

Why does 1GBit card have output limited to 80 MiB?

I'm trying to utilize maximal bandwidth provided by my 1GiB network card, but it's always limited to 80MiB (real megabytes). What can be the reason? Card description (lshw output): description: ...
4
votes
4answers
9k views

How to achieve 2-gigabit total throughput on Linux using the bonding driver?

For this application I am less concerned with high availability than I am with total throughput. I have one IP address on the server end, and I want to be able to send more than 1-gigabit of traffic ...
9
votes
3answers
5k views

Which tool should I trust, mii-tool and ethtool don't show me the same values

Our hosting company provides all the switching infrastructure for our servers. The private network, connected to eth2 should be GbE. Recently I've been suspecting that something is misconfigured as ...
6
votes
5answers
6k views

Gigabit with cat5 cable

Can a standard cat5 cable transmit at a speed of 1000 Mbit/s ? I've asked several people I know in the networking field and received different answers. I know a cat5 "works" on a Gigabit network but ...
0
votes
1answer
371 views

How can I set a Gigabit network instead of the 100Mb? [closed]

I'd like to know what kind of hardware I'll need to set up a Gigabit network in the company I work in. We're 12 workers with a few splitters and 3 servers. We already have a Gigabit router and 1 ...
5
votes
7answers
2k views

What is faster? A local mechical hard drive or a solid state drive over gigabit ethernet?

SSDs are rather new, so I couldn't find this information on the Internet. Would the performance of a local hard drive connected using SATA2 get out performed by a SSD over gigabit ethernet? In terms ...