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Questions tagged [10gbethernet]

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

2
votes
1answer
55 views

Why am I only achieving 2.5Gbps over a 10Gbe direct connection between 2 machines?

I have 2 machines directly connected to each other with a 7 foot Cat6a ethernet cable (included in the box of the NIC cards). The PCIe x4 NIC I bought and in both machines is this: https://www.amazon....
2
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0answers
59 views

Intel x550 not negotiating to 10Gb

We have a machine with an Intel x550 and a Cisco Nexus N9K-C9372-PX-E. For whatever reason, it will only negotiate at 1Gb, even though it is 10Gb capable and is being plugged into a 10Gb switch. This ...
1
vote
1answer
58 views

What to expect from a 10Gbs fiber optic network of one server connected directly to 4 clients?

I have a fiber optic network of one server connected directly to 4 clients(they are not connected to each other) The network is suppose to support up to 4x10Gbs, so 10Gbs throughput from each client ...
1
vote
1answer
38 views

Direct attach sfp+ cables (passive) connection issues after power restoration

I have got two servers with SFP+ capable network cards connected to the Unifi Switch uplink ports. Each of the servers has its own UPS and the switch shares the UPS with one of the servers. The ...
-5
votes
1answer
53 views

Serializing pcap file into 4B chunks [closed]

Given a previously generated pcap file, how do I serialize the data into 4B (or N byte) chunks. The format/protocol of the pcap data is not relevant here.
0
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0answers
112 views

R640 and R740 Dell with 10G NIC

I have few servers, 14G Dells, specifically R640 and R740 being used by QA guys. These servers have RHEL 7.4 installed with 10G based Intel cards. Randomly, the 10G NIC cards would suddenly appear as ...
0
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1answer
43 views

What is a 4x 10gbe QSFP-QSFP cable?

I was looking for QSFP cables on Ebay and came across a Brocade 58-0000033-01 marked as 4x 10GE even though it has one QSFP connector on each end. I don't understand what this cable is for, will it ...
0
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0answers
21 views

Using non-FUJITSU 10Gb Ethernet Cards in FUJITSU servers

We are currently trying to upgrade old servers to 10Gb connections. The servers in question are: PRIMERGY RX200 S6 PRIMERGY RX300 S5 Our FUJITSU partner told us that there were no cards available by ...
1
vote
1answer
56 views

Network performance with an i7 6700 Skylake

We're looking into setting up multiple servers with Nginx; the estimated required capacity is 60 Gbps (six-zero gigabit per second) A nearby datacenter offers us servers with "i7-6700 Quad-Core ...
4
votes
0answers
125 views

Not sure I really get 10 Gbit between our servers on the 10 Gbit network

We have a 3 Unix (1 Ubuntu 2 Redhat) servers connected via their 10 Gbit network cards to a 10 Gbit switch (our IT person made sure we got the correct cables). We experience some odd behaviour when ...
2
votes
3answers
88 views

How many “joins” allowed for 10GbE copper?

I wonder how many "jacks" are allowed for running copper (Cat6a and Cat7) link for 10GbE connections. Questions is pretty simple but I am confused about "link segment" term. From specification it ...
0
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1answer
460 views

ESXI, pfSense, 10gbE

Good day all! I will try and make this short and sweet. My current setup is: XS708T NETGEAR 10gbE switch ESXi Machine #1: 2x Intel 10gbE pfSense (VM) with WAN on one vSwitch, LAN on other vSwitch, ...
0
votes
1answer
329 views

How to connect MD3800i (iSCSI 10 GbE) to PowerConnect 8132F (SFP+ 10 GbE)

I want to connect a SAN (MD3800i) to a PowerConnect 8132F switch. Both support 10 Gbit Ethernet, but the 1st does it via iSCSI (RJ-45), while the second - via SFP+. Any adapter that could go in ...
3
votes
0answers
97 views

Dell X4012 copper options?

I've been using the Dell X4012 12x 10GbE switches with fibre and DAC cabling in several of our locations for a year now, and their lack of SFP+ ID checking made them easy to integrate. However, now I ...
3
votes
2answers
596 views

Do 10GbE SFP transceivers need to match?

I'm looking to connect a Promise SanLink 10GbE SFP NIC to a Cisco 10GbE switch. My general question is whether the transceivers need to match. In other words, do I need to find a transceiver which is ...
0
votes
1answer
208 views

Will adaptive load balancing (ALB) link aggregation causes high cpu usage in a NAS?

I have a NAS which has 2 10Gbe ports, and it provides Adaptive Load Balancing (ALB) link aggregation function. By checking Wikipedia, it seems that in ALB, the bonding driver needs to go through ...
1
vote
1answer
1k views

Mellanox connectX-2 - compatibility

We want to upgrade our network to 10Gbits. On eBay you find a lot of old HP Mellanox connectX-2 SFP+ cards which are capable of 10Gbit/s. We want to give our server one of them and connect it to a HPE ...
-2
votes
1answer
53 views

want to build a private 10 Gbps backplane [closed]

I intend to purchase, two servers each containing a Intel 82599 QSFP+ that the vendor says has "supports dual 10Gbe output via a splitter cable". Now I wanted to ideally connect the two servers and ...
0
votes
1answer
381 views

10GBase-T on Cat5e cabling

I accidently connected our new servers with our 10g switches using Cat5e S/FTP instead of Cat6a. Cablelength is 1 meter. There is a failover cluster running on the servers, without any traffic though (...
-2
votes
1answer
46 views

How did 10gbe happen without increasing the number of wires in the cable? [closed]

The ethernet cable speed jump from 100Mb/s to 1Gb/s was possible because all of the wires were put to use in a patch cable. The jump from 1Gb/s to 10Gb/s required no such increase. How did they do ...
1
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2answers
235 views

LACP bandwidth of multiple connections from single fast link

Is there a way to get multiple TCP connections from the same IP/MAC to use all of the physical links in a LACP configuration? Here's my setup: The central switch (Meraki MS42P) has a 10GbE link to ...
0
votes
4answers
3k views

SFP+ to 10GbE RJ45

We have Intel x520 10Gb SFP+ network adapter. We have RJ45 network cables to connect to a 10GbE network. We have looked into direct attach cables and transceivers but we are struggling to find a ...
1
vote
1answer
1k views

Why the bandwidth is not ~10G?

I originally posted on "Network Engineering", but I was told to ask here. I have 2 servers connected with 10G cable between them directly. I need to know that the connection is good and it has indeed ...
8
votes
2answers
2k views

10/20/40Gbps nginx large files caching webserver [20Gbps reached]

I would like to find out the best possible configuration/hardware to deliver 40Gbps from a single server in this question. Situation We have a video share proxy server that offloads peaks from slow ...
1
vote
3answers
153 views

How to connect a Juniper EX4500 to netapp X1107A

What is the best and not expensive way to connect a Juniper EX4500 to a X1107A Chelsio PCI Netapp card? Will these do (10GBASE-SR) for both end? and then connect with fiber cable? How important is it ...
4
votes
2answers
9k views

how to tell if NIC has multiqueue enabled?

Can anyone tell me what command i run to determine if my 10G NIC is running in single RX-TX queue mode or multiqueue? It looks like it only has 1 RX/TX queue according to cat /proc/interrupts root@...
1
vote
1answer
1k views

Is it possible to have a link between a 10GbE NIC and 1GbE Switch with a SFP+ DAC?

I've just installed an Intel 82599 based NIC with 2 SFP+ ports in my server. Right now I have a PowerConnect 2824 switch, which has 2 1Gb SFP ports. I tried linking them with a 10Gb SFP+ DAC (a ...
3
votes
0answers
520 views

SMB3 on centos fluctuating read/write speeds

I recently got two 10GbE cards and have been testing a SMB share from centos 6.4 with it as the SMB server. The SMB client end is a Mac and I don't seem to be maximizing the network speed because it ...
1
vote
4answers
2k views

Direct connect 10GBE with fibre

I have two servers that I wish to direct connect with 10GBE. One server has an Oracle Sun 10GBE (Intel 82599) with dual SFP+ pluggable transceivers installed. The other has an HP 10GB MELLANOX ...
1
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0answers
626 views

10gb ethernet direct connection (no switch)

Im trying to connect 2 computers with 2 PCIe "Core 4 HP 671798-001 HP CX-2 NIC 1 PORT 10GB" I'm using a SFP+ Direct Attach Copper Cable (I think they are also called twinax) I found a similar ...
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votes
1answer
403 views

Intel 82599EB Not Working on Linux

I have just received my new X310 + Intel 82599EB. I cannot ping the device. If I connect the X310 to the 1Gb ethernet port of my host then everything works fine; If I connect the X310 to the 10Gb ...
1
vote
1answer
419 views

QNAP TS-EC1279U with X520-DA2 (10GBe) Loosing NIC conneciton after workstation reboot

=== Configuration=== Your Operating System you are using to access your NAS. Win 7 NAS model: TS-EC1279U-RP Firmware Version/: 4.1.4 Network Setup Single Port Static IP (192.168.1.199) (10GbE) === ...
1
vote
1answer
831 views

Intel X540-T1 10GigE NIC works, but extremely slow, high latency on Ubuntu 14.04 LTS

I have a new Intel X540-T1 network adapter. I installed the latest ixgbe-4.1.5 driver from Intel. The card is able to get an IP address from DHCP. However, viewing websites and installing packages ...
3
votes
1answer
156 views

What would cause a single protocol to function at 1Gbps over a 10Gbps connection?

Our AFP server is now capping out at 1Gbps over our 10Gbps fiber connection. And only in the client<-server direction (client reading from it). This is a new occurrence. For years now the clients ...
1
vote
1answer
117 views

NUMA_NODE for 10GbE device

My server reports numa_node=-1 for all ethernet devices. I am interested in high speed UDP capture (all jumbo packets). I am running Debian Wheezy (kernel 3.2.68-1+deb7u2). I am told that one needs ...
2
votes
0answers
2k views

Are the i40e and ixgbe drivers really used by our Intel NICs?

We recently got two QCT 2U4Node high-density servers. Each node is equipped with a XL710 dual 40G NIC with two QSPF+ ports and two QCT mezz cards that sport Intel 82599 and dual 10G SPF+ ports for a ...
6
votes
2answers
5k views

Unstable 10Gb copper links, Broadcom and Intel cards to Cisco 4900M switches

We bought some Dell PowerEdge R730 servers with QLogic/Broadcom BCM57810 PCI Express cards, and connect them to Cisco 4900M switches - the 10Gb links don't work reliably. They will sometimes not ...
0
votes
1answer
1k views

10GBASE-T Performance in Windows 7

This is my scenario: -Workstation1: CPU i7-3770 / 16GB ram / Gigabyte Z77-D3H motherboard / Crucial CT256MX100SSD1 Sysyem Disk / Network adapter intel X540-T1 / Windows 7 64bit -Workstation2: CPU i7-...
0
votes
1answer
215 views

Network teaming Windows Server 2008 R2

I have two Windows Server 2008 R2 servers that need to share files on SAS attached logical drives over a 10G network connection. The servers have two 10G ports so I'm wondering if I can use both of ...
4
votes
2answers
3k views

10Gb ISCSI to 1Gb server port

I have this setup in mind. Md3800i 4 10GBps Iscsi. 2 del r730 4 1Gbps ports. I will use this storage to backups and low profile mass storage. So i don't won't to put HBAs in the server. Looking ...
3
votes
1answer
528 views

Whitebox firewall in datacenter environment

I am looking into alternatives to commercial firewall appliances. Most of the resources available online describe home network firewalls or sub-gigabit networks. Considering than 10GbE is becoming the ...
1
vote
4answers
10k views

Default gateway config in FlexFabric 5700

We've taken delivery of a brand new set of shiny FlexFabric 5700 10GbE switches. I've read through the config and setup guides provided by HP and they're great, except that they outright lie about ...
1
vote
1answer
882 views

SFP+ Cable From Uplink Port to SFP+ 10Gb NIC

I have a specific question about using a this 2m passive SFP+ cable to connect the 10Gb uplink port on a switch to a NIC in a server. Switch: Netgear GS752TXS Server NIC: HP NC522SFP I'm fairly ...
1
vote
1answer
258 views

Cisco 10GB-T module port duplication issue

I purchased one two port 10GB-T ports network module (C3KX-NM-10GT) for my 3750-X switch stack (4 in the stack). After powering off the entire stack, plugging the module in, re-powered everything. ...
1
vote
0answers
401 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
2k 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
26 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
970 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: ...
4
votes
1answer
2k 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
2k 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 ...