The gigabit-ethernet tag has no wiki summary.
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1answer
24 views
2 NIC's are not loading by the Ubuntu Server
I have a Server with 5 NIC's.
And I have just installed Ubuntu Server 11.10 64 bit fully dist-upgraded by now (31 Jan)
3 NIC's are identical PCI-Express x4 adapters.
1 is integrated TG3
and the last ...
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3answers
94 views
Having an issue trying to get Gigabit speed across my network (Ubuntu Server)
I've just started looking into the network speeds at my office, the entire network is setup to be "Gigabit". This includes Gb switches, Gb Network cards and Cat 5e cabling.
I'm not expecting the full ...
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0answers
73 views
ZFS and FreeNAS Performance
I have just set up an HP Micro Server N40L as a FreeNAS with 4 2tb drives in a RAIDZ. I am getting around 30-40MB/sec, with occasional bursts of 50MB/sec., reads and writes that are similar to the low ...
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0answers
82 views
Difference between FastEthernet and Gigabit Ethernet [closed]
As Gigabit Ethernet cable has only twice as many wires as FastEthernet cables - how come that the data rates are so high? It's 1Gb/s contrary to the old 100MB/s used in FastEthernet. And besides, ...
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3answers
115 views
Cascading gigabit switch (10/100/1000) with fast ethernet switch (10/100)
I'm a newbie in networking. I have this question in mind lately. I bought a gigabit switch and tried to cascade it with my existing fast ethernet router and switch. I have 1 server which is connected ...
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1answer
106 views
Recommend a nice managed Top Of Rack switch for Linux Computer Cluster (but it has to be cheap!) [closed]
I work at an industrial research lab, and we have a research group that's building up a Linux-based compute cluster. The have about 46 nodes so far, with more to come. They came to us a few months ago ...
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0answers
91 views
Slow windows network bridge
I have windows server 2008 r2 installed and use it as a router.
There are three interfaces up:
WAN - first NIC, internet connection.
LAN - second NIC(gigabit), local network connection.
WLAN - ...
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3answers
93 views
Disable gigabit ethernet throttling?
I've got two windows PCs connected by gigabit ethernet.
When I use iperf to measure throughput it maxes out at a good 100MBit/s.
When I run iperf using two or three parallel connections, each will ...
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1answer
45 views
Web server to DB server connection speed
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 ...
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2answers
142 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 ...
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5answers
160 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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1answer
449 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
101 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 ...
3
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1answer
178 views
What is theoretical maximum of TCP traffic over GigaEthernet?
What is theoretical maximum of TCP traffic over GigaEthernet ?
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2answers
334 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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3answers
194 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 ...
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4answers
361 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
419 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 ...
2
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1answer
341 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
121 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
439 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 ...
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1answer
88 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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3answers
986 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
127 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 ...
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3answers
496 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
...
5
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3answers
557 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 ...
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4answers
279 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
625 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
120 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 ...
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6answers
918 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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3answers
247 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 ...
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1answer
153 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 ...
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3answers
1k 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
378 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 ...
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4answers
297 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 ...
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4answers
200 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 ...
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2answers
639 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 ...
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4answers
979 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
590 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 ...
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3answers
311 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
2k 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 ...
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6answers
5k 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" ...
0
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3answers
853 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
1k 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 ...
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3answers
159 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 ...
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3answers
381 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
970 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 ...
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4answers
937 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 ...
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6answers
542 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 ...
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2answers
732 views
Cheap gigabit switch? [closed]
Does anyone have any recommendations for a cheap gigabit switch? I'm starting to outgrow my WRT54GL router.
