Questions tagged [10gbethernet]

10 gigabit per second version of Ethernet protocol, using either copper or fiber cables

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10GbE sfp+ cross over cable required? Is there such a thing?

To preface, this is my first experience with 10GbE networking and I have encountered an issue which my research does not seem to locate a solution for... I have two servers (older DL580G5 and DL380G5)...
dc-patos's user avatar
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12 votes
1 answer
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How does BER compare between different 10GbE physical media?

I am under the impression that you should use optical for 10GbE networking because of a BER (bit error rate) several orders of magnitude lower than copper. I'm pretty sure I previously found ...
MikeyB's user avatar
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3 votes
2 answers
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8Gb Fiber Channcel HBA vs. 10 Gb SPF+ Converged HBA

I am putting a Dell server together, more specifically R720. I have to select the correct Host Bus Adapter. This HBA on R710 will connect to a storage device. I am confused between these two: QLogic ...
H A's user avatar
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4 votes
4 answers
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10Gbps iSCSI network transferring at only 2Gbps

I have a performance issue with my SAN. I have a full 10Gbps private network setup. I have the following setup 1 - Mac with Connected with via Fiber Transciever 10GbE 1 - Windows 7 PC with 10GbE 1 - ...
cohortq's user avatar
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-1 votes
2 answers
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"Speed Mismatch" between 1000T and 10000T?

I have a server in a data center, which has an Ethernet NIC card with Fibre support. I have a 1Gbps connection and my ISP asked me to make sure the settings on my device are as follows: Full Duplex, ...
Tarandeep Gill's user avatar
5 votes
1 answer
2k views

Will 10GBASE-LR work if 10GBASE-LRM used to work on the same cable link?

We have got some old 62.5um single-mode fiber links in our building. Network people told me, that Cisco 10GBASE-LRM with Cisco mode conditioning patch cables works fine on those cables and provides a ...
abbot's user avatar
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3 votes
0 answers
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ksoftirqd process overloads CPU with high-bandwidth and multiple network connections

I got a 10GBit Server with proxmox 2.1 installed. There's an OpenVZ container running with Ubuntu 10.04 64bit. I can get 200-300MB/sec with wget from data-center internal servers (-O /dev/null) which ...
The Shurrican's user avatar
5 votes
1 answer
3k views

Very low throughput on 10GbE network

I have two Linux machines, each equipped with a Solarflare SFN5122F 10GbE NIC. The two NICs are connected together with an SFP+ Direct Attach cable. I am using netperf to measure TCP throughput ...
NPE's user avatar
  • 679
0 votes
1 answer
421 views

NETXEN CX4 10G NIC Drivers for Windows 2008R2

I am searching for a Network Card Driver, the nic is "NetXen 10Gb (CX4) Ethernet Protocol Offload Adapter" I am using this adapter on a Windows 2008R2 Box - Once I installed windows - it had already ...
Mutahir's user avatar
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4 votes
4 answers
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Are there solutions that can combine gigabit ethernet, 10gig ethernet, and fiber channel in a single device?

We currently have Brocade 200E fiber switches, connecting 2 EMC CLARiiONs to 4 VMware ESXi hosts. We are looking into new storage options using iSCSI with our existing ethernet network, including the ...
Paul Kroon's user avatar
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-2 votes
1 answer
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Simple 10GbE solution for 10-20 workstations [closed]

Right now we are designing a video editing lab of around a dozen workstations. From my research I see that there are Cat6a solutions over there. Also, I think, SFP+ or other optical interconnects ...
B.I.'s user avatar
  • 113
2 votes
1 answer
759 views

Procurve 5400 10GB

I need some help for 10GB connection. I actually have a Procurve 5400zl series with some port SFP+ on V2 version module. We desperately need to connect a server with pci-x slot. what can I do to have ...
Danil74's user avatar
  • 21
1 vote
1 answer
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Why does my samba server serve data so slowly even when said data is cached?

I have a CentOS 5.6 server with the base Samba install. It has an 8 drive Raid 5 attached to an Areca 1880, hdparm tests give me back ~450MBps and I can confirm close to that with a dd to /dev/null. ...
Jdb's user avatar
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3 votes
2 answers
46k views

What is the command to enable 3rd party SFP+ transceivers on Arista switch?

Does anyone know the command that enables the usage of 3rd party SFP+ on an Arista 7148S switch?
waszkiewicz's user avatar
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1 vote
4 answers
291 views

10Gbe connection to 3 sites using Single Mode fibre. Require High Availability

An industrial site needs to link 3 seperate areas in a building in such a way that all the switches are on the same network and sharing the same wan link. The wan link will only be coming in from one ...
BOBA_FETT_81's user avatar
0 votes
1 answer
916 views

Intel® Ethernet X520 10 Gigabit Dual Port -x/k Mezzanine Card

what are the backplane connectivity options for this card? though it is said for blades, we got this on a Dell PE C2100 rack...now there are two holes (ports) on servers backplane gazing at me......
JMS77's user avatar
  • 1,275
2 votes
1 answer
824 views

STM-64 to Ethernet conversion: proper solution required

We need to arrange Ethernet network between two cities - this gonna be a partnership with other organization: we help them with equipment and get some bandwidth. I am newbie beyond 1 Gbit networks, ...
alexm's user avatar
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0 votes
1 answer
2k views

configuring c7000 10gb switch for load balancing

We are building a system using HP's c7000 blades. Cisco catalyst switches support etherchannel load balancing. However, it appears that Cisco switches are only available for 1gb backplane, and not ...
sfried's user avatar
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1 vote
4 answers
1k views

Must I install SFP+ transceivers in pairs?

I'm expanding the switch in our rack to a 10 GbE fiber internet feed. Specifically: we have an HP 2910al will expand the switch with a J9008A 2-port 10GbE SFP+ module will plug in 1 (2?) J9150A ...
Stu Thompson's user avatar
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1 vote
1 answer
236 views

SAN for virtual envirnment

I will be ordering a c7000 server enclosure by HP and adding some BL460c G7 servers. This will be for a completely virtual environment. The G7's have the FlexFabric adapters built in and a pair of BLC ...
0bfus's user avatar
  • 13
4 votes
1 answer
4k views

10 GigE interfaces limits single connection throughput to 1 Gb on a ProCurve 4208vl

The setup is as follow : 3 Linux servers with Intel CX4 10 GigE controllers and an X-Serve with a Myricom 10 GigE CX4 controller are connected to a ProCurve 4208vl switch, with a myriad of other ...
wazoox's user avatar
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2 votes
3 answers
7k views

Basic multicast network performance problems

I've been using mpong from 29west's mtools package to get some basic idea of multicast latency across various Cisco switches: 1Gb 2960G, 10Gb 4900M and 10Gb Nexus N5548P. The 1Gb is just for ...
davedavedave's user avatar
0 votes
2 answers
1k views

is it possible to direct connect a client and server with 10GBASE CX4 copper cables?

Server has two 10GBASE-CX4 ports. client has 10GBASE CX4 HBA. can theybe directly connected with a CX4 cable without the need for a switch? like SAS Infiband connectors?
JMS77's user avatar
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1 vote
1 answer
230 views

hybrid cable for QSFP to CX4 convertion

here is a hybrid cable for QSFP to CX4. Will this fit SFP+ ports? Deeply confused by standards and struck in a situation with wrong hardware selection!Personally have not seen the ports/hardware and ...
JMS77's user avatar
  • 1,275
0 votes
2 answers
4k views

which 10Gb switch has native CX4 copper ports?

networking experts please help with a recommendation for a 10Gb switch that has at least 3 native CX4 copper ports and preferably some 10GBASE-T. rack mount only! anything in CISCO? Juniper? We ...
JMS77's user avatar
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5 votes
2 answers
7k views

please demystify the 10Gb ethernet interfaces, cables

this really is a Dell question but tempted to ask the experts @ serverfault. choosen a Dell powerconnect 8024 10GbE switch. per the spec sheet this has 10GbaseT ports. "24x 10GBASE-T (10Gb/1Gb/100Mb)...
JMS77's user avatar
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7 votes
2 answers
1k views

10GE network: Is it still deadly expensive? Any options?

I am building home cluster where I going to have about 16 nodes which can live with 1G ports, but I want to have 10GE on file server & central node. It's all local, so no need for cables longer ...
BarsMonster's user avatar
0 votes
4 answers
8k views

Choosing 10GbE switch: 10Gb uplink module on 1GbE switch means it can act at 10Gb bandwidth?

confused between choosing a switch with 10Gb ports vs 1Gb layer3 switch which has optional 10Gb uplink port. are they same? that means I want to have a 10Gb pipe between storage server and the two ...
JMS77's user avatar
  • 1,275
1 vote
1 answer
573 views

VMWare FT, 10GbE, 4 NICs - possible?

I'm trying to investigate if VMWare FT will be available in the following networking configuration. We have 4x 10GbE NIC's, two of which are for the MPIO iSCSI networking, which leaves 2x NICs for ...
Mark Henderson's user avatar
16 votes
5 answers
48k views

Why would I choose Copper over SFP+ for 10GbE?

We're speccing up some 10GbE switches for integrating a few older servers into our Equallogic SAN, and we're noticing quite a price gap between SFP+ and Copper (Cat 6A) equipment (Dell 8024F vs 8024). ...
Mark Henderson's user avatar
1 vote
5 answers
10k views

NIC status stays at 'Network Cable Unplugged' although cable is present

I'm having a problem with a couple 10GB NICs, one in particular in Windows 7 x64 that always thinks the cable is missing. The drivers for the NIC are current, downloaded from Intel- it's settings are ...
NginUS's user avatar
  • 468
0 votes
1 answer
326 views

Adding 10GbE to a ring of 3com 4200 switches

We have 5 3com 4200 switches forming a ring (connected using 10GBase-CX4 XENPAK modules) and would like to add a few servers with 10GbE adapters soon. The offer we are currently looking at consists ...
user25417's user avatar
  • 125
1 vote
2 answers
3k views

Trouble with SFP cables for a 10 Gb connection

I have two machines, each with a 10 Gb adapter, directly connected with an SFP cable. I purchased three SFP cables that look exactly alike (physically and specs), but only one works. I'm having ...
Banjer's user avatar
  • 4,024
4 votes
2 answers
2k views

Anyone can tell their experience with 10g Ethernet adapters on Linux

I wonder if any of you have an experience with 10g NICs (Intel, Myricom, SMC tiget, napatech, or by any other brand). Questions are: Was it easy to install, or a hassle, How does this adapter appear ...
Tzury Bar Yochay's user avatar
0 votes
1 answer
2k views

Cisco Nexus 5000 Vs. UCS 6100

I'm a bit lost when I take a look to Nexus 5000 and UCS 6100. The description of Nexus 5000 is quite clear and I see what it does but the description of the UCS 6100 is a bit unclear for me. Could ...
radius's user avatar
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0 votes
1 answer
5k views

Cisco Catalyst 6509 Not Powering Up WS-X6716-10GE Module

I just inserted a 10GbE 16 port line card into a Cisco Catalyst 6509 series switch and nothing happens(™). The chassis recognizes the new line card but doesn't boot it up. show power and show modules ...
pfo's user avatar
  • 5,708
4 votes
3 answers
255 views

Has anyone had any problems with CNAs (Converged Network Adapters)?

I'm looking to buy some CNAs to trial with, probably the Emulex board. Just wondering if anyone's using these cards or any competing cards and if so have you have any problems with them yet? In ...
Chopper3's user avatar
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