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Questions tagged [broadcom]

Topics related to Broadcom hardware such as Ethernet Network Interface Cards

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59 questions
32
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9 answers

Windows Server 2008 R2 network adapter stops working, requires hard reboot

TL;DR version: Turns out this was a deep Broadcom networking bug in Windows Server 2008 R2. Replacing with Intel hardware fixed it. We don't use Broadcom hardware any more. Ever. We have been using HAProxy along with heartbeat from the Linux-HA…
Geoff Dalgas
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5 answers

What network loads require NIC polling vs interrupts?

Does anyone have some data or basic calculations that can answer when frame coalescing (NAPI) is required and when a single interrupt per frame is sufficient? My hardware: IBM BladeServer HS22, Broadcom 5709 Gigabit NIC hardware (MSI-X), with dual…
Wim Kerkhoff
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10
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3 answers

How do I stop Dell R730xd fans from going full speed when Broadcom/QLogic NetXtreme 57711 PCI card added?

I have a pair of Broadcom NetXtreme 57711 10GbE cards. I put one in a Dell R710; it boots with the card fine, the OS (CentOS 7) recognizes it, and all seems well. However, when I put the other card in an R730xd (also running CentOS), something…
mhucka
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7
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2 answers

NIC Teaming with Broadcom on HyperV 2008 R2

I have a HyperV cluster made up of 3 hosts. Each host is connected to both of my Nexus 5548 switches running in an etherchannel. LACP on the switch and NIC teaming using Broadcom 802.3ad on the server side. This gives me 2GB of bandwidth and also…
Ruisu
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6
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2 answers

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 connect, sometimes connect after a few minutes, and…
TitanBar
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6
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1 answer

Server 2008 R2 NIC in "Unidentified Network" state after connectivity loss is restored

I am having trouble with 2 servers, both with the same symptoms. When they are reconnected to the switch after losing connectivity, they stay in an "unidentified network" state. Only after cycling the selection of ipv6 in the NIC or rebooting does…
CallMeStabby
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6
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6 answers

Dropped packets, on recieve only, Server 2008 only, and network speed is 100mb/s

I have a really strange one. I have packet loss with Excessive 'TCP Dup ACK' & 'TCP Fast Retransmission' when I download files (and only download) from two different Windows 2008 servers. Upload speed is fine. This ONLY occurs if the client…
Porch
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5
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5 answers

Broadcom NIC Teaming with Hyper-V R2

I have read a few contradictory articles regarding support or at least configuration with teaming of Broadcom NIC's and Hyper-V. I have a pair of Dell R805's with 4 Broadcom 5708 NIC's in them. I have teamed them up (one team for public…
Brian McCleary
5
votes
3 answers

Broadcom BCM5716 Hangs on CentOS 6 Boot

I have a fresh CentOS 6 installation on a Dell R310 server with a Broadcom BCM5716. The onboard NIC is causing the boot to hang for some reason. Welcome to CentOS Linux Starting udev: udev: starting version 147 Boardcom NetXtreme II Gigabit Ethernet…
DJ Tarazona
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4
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2 answers

Any known fixes for Hyper-V host networking randomly stops responding?

We run several HP DL380 Gen8 servers as Windows 2012 R2 Hyper-V hosts. Randomly, they stop responding on the customer NIC (ie the one connected to the virtual switch). Customers are disconnected from VMs. Luckily we have found that we can get to the…
Trichromic
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4
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1 answer

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 10Gbit. They settle at 1Gbit only. 10GbE on Xen hosts…
Michał Sacharewicz
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4
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1 answer

Hyper-V R2 can't add a teamed NIC as External Network

I have a Dell PowerEdge R710 running Windows Server 2008 R2 Datacenter and which was part of a Hyper-V Failover Cluster. It has 8x Broadcom BCM5709C NICs and three are teamed together to be my "Virtual Machines Team". The team works fine, but I'm…
Gup3rSuR4c
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4
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1 answer

What is the proper Hyper-V R2 with Teamed Broadcom BCM5709C NICs configuration (VMQ, TOE, LSO, CSO, etc.)?

I have a pair of Dell PowerEdge R710 servers (2x Xeon X5690s, 64GB, 8x BCM5709C NICs) running Windows Server 2008 R2 Datacenter. They're backed by a Dell PowerVault MD3200 with 3.6TB in RAID 10 (effectively 1.8TB) via HBA (not iSCSI!). These were…
Gup3rSuR4c
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4
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1 answer

How do I get out of FreeDOS and boot the system back up without a hard reboot?

I was running a diagnostic utility from Broadcom on my network hardware and it ran in FreeDOS. I've never used this before and I am unfamiliar with it. Now I am trying to avoid hitting the power button and I would like to boot the system back up…
Mike
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4
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2 answers

High Instances of Zero Window Messages

On my web servers I am seeing a high rate (106 over ~13 seconds or 300,000 packets) of zero window update messages sent form my web servers to my database servers during peak traffic. Firmware is Updated: I have updated the firmware and driver to…
Kyle Brandt
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