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

learn more… | top users | synonyms

1
vote
0answers
45 views

Heavy traffic causes ethernet link to go down

I have a FreeBSD (10) host connected to a Linux (Debian 7) box directly with a Cat 6 cable. Both hosts have Intel X-540 10GBe NICs (ixbge). Whenever there is heavy traffic (high PPS) from the ...
3
votes
2answers
138 views

HP ProCurve 5406zl does not accept direct attach cable with error “Not an HP Networking transceiver”

I have an HP 5406zl switch running the latest firmware in the non-early release branch (K.15.14.0007, ROM K.15.30) and it is not accepting direct attach SFP+ cables in its SFP+ module. The module is a ...
0
votes
0answers
20 views

X520-DA2 10GbE PCIe NIC on Ubuntu 12.04 doesn't respond correct ARP information for a traffic tester

I'm trying to configure stand-alone test network to examine a server that has two 10GbE ports PCIe NIC. But I couldn't get any ARP responses of those 10GbE ports. To execute my test, it's necessary to ...
1
vote
0answers
19 views

local RAID vs server RAID with a 10GbE connection [duplicate]

we are trying to configure a descent size (in layman's perspective) storage at my lab. I am a skilled programmer, but my knowledge in hardware at non-consumer level is very limited at this point. At ...
1
vote
0answers
82 views

Intel 10Gbps NIC not working within Solaris 11

I'm working within Solaris 11.1 on hardware that is on the Solaris 11 HCL. My Intel X520-DA2 is failing to initialize. Jun 14 03:11:32 ATM-Front-End-1 ixgbe: [ID 611667 kern.warning] WARNING: ...
2
votes
1answer
163 views

Do Netgear switches accept other brands of SFP+ modules and cables (e. g. Cisco)?

Specifically, I'm looking to connect servers with Intel X520-DA1 10 Gigabit Ethernet cards to the 10Gbe ports of a Netgear ProSafe GS752TXS. Can I use Cisco SFP+ cables (SFP-H10GB-CU5M) and optical ...
0
votes
1answer
217 views

Network issues vmware Dell R620 10Gbit

I'm trying to get two new Dell R620 servers up and running on 10Gbit interfaces. The servers were delivered with two PCI network-cards for 10Gbit. At the moment, the network cards installed and ...
0
votes
0answers
42 views

How much throughput increase to expect from link aggregation (LACP/802.3ad)?

I identified that data transfer within my cluster will be bottlenecked by the network interconnect (I'm saturating the dual SAS connection to my storage with sequential workloads), and I'm undecided ...
4
votes
1answer
178 views

Why 10GbE card cannot negotiate 10Gbit with Windows 2012R2?

The Problem I've got four identical blade servers. I've got Windows Server 2012 R2 on one blade and Xen on all the others. On the Windows-hosted server (only) the 10GbE NICs cannot negotiate ...
0
votes
1answer
64 views

Optical modules, fiber and cables for 10 GbE short range connectivity (brands, latency) [closed]

I'm looking to run 10 GbE over lengths of 5-25m for a research lab and have been shopping for the appropriate optics. I'm guessing a mix of copper direct-attach cables and OM3, OM4, LC/LC multimode ...
-1
votes
1answer
103 views

What is the point of a 10GBPS internet connection?

At a few dedicated server companies, they offer 10GBPS internet connections to replace the normal connection that you get if you order a server from them. I can see some applications of a 10GBPS ...
12
votes
4answers
880 views

what's the difference between Gigabit Ethernet Controller and Ethernet Converged Network Adapter?

My question is what's is the difference between Gigabit Ethernet Controller and Ethernet Converged Network Adapter? I want to upgrade my server to 10 Gigabit ethernet, my server vendor recommend me ...
1
vote
4answers
262 views

10GbE with FCoE with SAN and LAN traffic is a good solution?

I'm building a small datacenter from the ground, and I'm considering 10GbE. I'm looking for some advices about this decision. I've compared Infiniband, FC, 10GbE and LACP with GigE, and in the end ...
0
votes
1answer
30 views

Identify differences between HBA SR and 10GB SR card by visual inspection

I would know if exists visual differences between "8Gb FC SR HBA" and "10GbE-SR 2p PCIe Adapter" cards in order to identify them watching the cards installed in the server rear without access to the ...
2
votes
1answer
623 views

How to achieve multiple NFS/TCP connections to the same server?

I'm trying to maximize the NFS/TCP bandwidth between a Linux client and a single NFS server over a 10Gbps link. Although each NFS mount has its own device (major/minor), everything comes down to a ...
2
votes
3answers
109 views

Optical mirroring

I have a 10G XPF+ optical cable with market updates from a stock exchange. This cable goes into a switch, which then mirrors every packet to a couple of computers over two ports. The problem with ...
1
vote
1answer
303 views

10g network cards running at less than 1 gigabit

I have installed 10 gigabit fiber-optic cards in two of my servers, but when I test their throughput they run at only around 600Mbps or so: $ scp random.1G rcm2:/tmp random.1G 100% 1024MB 73.1MB/s ...
2
votes
0answers
627 views

10GbE be2net low pktgen performance

I am testing the network performance of two workstations, each having 2.4GHz Xeon quad core processors and NC550SFP PCIe Dual Port 10GbE Server Adapters, linked back to back. I've checked the ...
2
votes
2answers
562 views

Stacking and LAGing 4x PowerConnect 8024F's

We are constructing a new networking infrastructure to replace out 1GbE backbone and have decided upon using 4x Dell PowerConnect 8024F's as our "core" switches. As per the diagram below we have 2x ...
2
votes
1answer
93 views

Storage Network Stops Transmitting Traffic

I have a troublesome issue. I have a 10Gb storage network serving a VMWare vSphere 5.1 environment. Storage: TrueNAS(NFS) with a Chelseio T320 10Gb Nic Storage: Dell PowerVault MD3600i(iSCSI) ...
1
vote
1answer
473 views

Can't set NIC speed to 10Gbps using ethtool

We're using IBM Blade Center HS-22 servers with Broadcom NetXtreme II 10Gbps NICs to a Nortel 10Gbps switch. With one of the chassis the NICs can establish a 10G rate with the command "ethtool eth2 ...
0
votes
5answers
2k views

New office cabling: should we use CAT7 or CAT6a? [closed]

We are going to do the cabling in our new office building and we are thinking to lay down 10Gbit cables since we use HP switches that come with 10Gbit ethernet ports. We will also lay down few fiber ...
3
votes
1answer
798 views

SFP+ vs CAT6a for 10GbE

We are looking to implement 10Gig ethernet for our ESX hosts and SANs. There are a number of solutions we have been looking at and it has really boiled down to what will give us the best bandwidth. ...
5
votes
3answers
699 views

Recommendations: configuring a 10GbE NAS stack for virtualisation storage

I'll try as hard as I can to word this so it is not considered a shopping list. We have been successfully running a dev/test ESXi environment for some time, with a couple of Dell PE2950III servers ...
0
votes
3answers
421 views

are DDR infiniband and 10Gbase-CX4 cables the same?

They looks the same. It's SFF-8470 Is it ok to buy a "10Gbase-CX4" cable for an infiniband network ?
0
votes
1answer
106 views

Direct Connect a server to 2 clients using 10 GBE Cooper

I want to direct connect my server to two clients using 10 GBE. I plan to use the ATTO FastFrame NT12 NIC. ...
2
votes
2answers
495 views

Linux Experts Riddle: Network output of 10MB/s on 10GB/s NIC

I have two CentOS 6 servers. I am trying to transfer files between them. Source server has 10GB/s NIC nd destination server has 1GB/s NIC. Regardless to the command used nor the protocol, the ...
1
vote
2answers
1k views

Ubuntu 12.04 Server - eth0 1Gbps NIC eth1 10Gbps NIC - all traffic using eth0?

UPDATE: (per request below) serveradmin@FILESERVER:~$ cat /etc/hosts 127.0.0.1 localhost 127.0.1.1 FILESERVER # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ...
7
votes
2answers
246 views

iSCSI using uplink ports on switch

Do the uplink ports on switches typically work okay as iSCSI ports? We're adding a 10gb iSCSI SAN, and want to get a combo switch (48x1gb & 4x10gb SFP+ uplink ports) and use the 10gb for the iSCSI ...
6
votes
2answers
951 views

What is the clock frequency inside 10Gb and 100Gb Ethernet cards?

As I understand, a 10Gb Ethernet card is capable of putting 10Gb every second on (say) a fibre optics cable. Now naively, for this to happen in hardware, one will need a 10GHz clock running the ...
8
votes
2answers
2k views

What is serialisation delay? Why does 10GB Ethernet help reduce it?

In the context of a network switch, what exactly is "serialisation delay"? (I've heard this term a few times.) I've also heard that 10Gb Ethernet (as opposed to 1Gb Ethernet) as a transport technology ...
1
vote
0answers
266 views

Do Gigabit ethernet single-mode fiber network adapters exist?

I am attempting to set up a server with a total of four single-mode fiber ports - two need to be at least 1Gb and two must be 10Gb. I have found a variety of 10Gb single-mode fiber network adapters ...
6
votes
3answers
4k views

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 ...
12
votes
1answer
700 views

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 ...
3
votes
2answers
573 views

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 ...
3
votes
4answers
1k views

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 - ...
-1
votes
2answers
536 views

“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, ...
4
votes
1answer
528 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 ...
2
votes
0answers
5k views

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 ...
3
votes
1answer
1k 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 ...
0
votes
1answer
289 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 ...
4
votes
4answers
701 views

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 ...
-3
votes
1answer
1k views

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 ...
2
votes
1answer
402 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 ...
0
votes
0answers
165 views

CNA Support and Debian Squeeze (6.0.1)

Has anyone successfully configured networking on Debian Squeeze using a QLE8152? We have a QLE8152 (10Gbps Converged Network Adapter) that we'd like to drop into a Linux system (Debian 6.0.1), but ...
1
vote
1answer
446 views

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. ...
1
vote
2answers
2k 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?
1
vote
3answers
159 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 ...
0
votes
1answer
552 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 ...
2
votes
1answer
259 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, ...