Long long time ago, in a land far far away, Windows had problems with multiple IPs if you had multiple default gateways. Symptoms very similar. I haven't kept up with that functionality so maybe that is no longer an issue. Something to consider though.
On Thu, Jun 11, 2015 at 2:22 PM, Susan Bradley <[email protected]> wrote: > Poor network performance on virtual machines on a Windows Server 2012 > Hyper-V host if VMQ is enabled: > https://support.microsoft.com/en-us/kb/2902166 > Virtual machines lose network connectivity when you use Broadcom NetXtreme > 1-gigabit network adapters: > https://support.microsoft.com/en-us/kb/2986895 > > > Broadcoms are evil. > > VMware KB: Broadcom 5719/5720 NICs using tg3 driver become unresponsive > and stop traffic in vSphere: > > http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2035701 > > You are up to the latest broadcom driver from the manufacturer? > > MS wants feedback on patching: http://tinyurl.com/patchingsurvey > On 6/11/2015 11:15 AM, Robb Whiting wrote: > >> Hrmmm... Well we have a 4 port Broadcom NC382i Gigabit adapter, but this >> is VMware land so as far as windows is concerned they are intel e1000s, >> however we have tried the vmxnet3 adapter type as well. >> >> -Robb >> >> -----Original Message----- >> From: [email protected] [mailto: >> [email protected]] On Behalf Of Susan Bradley >> Sent: Thursday, June 11, 2015 10:31 AM >> To: [email protected] >> Subject: Re: [NTSysADM] VMware and networking issues >> >> In the HyperV world, we have this thing called evil Broadcom nics. In >> order to use them and HyperV we have to sacrifice interns to the gods, and >> then disable rss/toe and the new thing with 2012 and later - disable VMQ. >> And you have to do this not in the gui but in command line to make it stick. >> >> What brand is your nic card and is there anything similar in the vmware >> world where certain nic cards are just horrific when it comes to behaving? >> >> MS wants feedback on patching: http://tinyurl.com/patchingsurvey On >> 6/11/2015 10:19 AM, Robb Whiting wrote: >> >>> Seems like a common problem… anyone have a definitive fix? Is it a >>> virtual hardware thing you think then? >>> >>> I’ve never seen it happen in Linux. Except maybe CentOS but that’s >>> more of a picky ARP cache thing. >>> >>> -Robb >>> >>> *From:*[email protected] >>> [mailto:[email protected]] *On Behalf Of *David McSpadden >>> *Sent:* Thursday, June 11, 2015 10:16 AM >>> *To:* [email protected] >>> *Subject:* RE: [NTSysADM] >>> >>> It happens on all OS’s for me and it is random. >>> >>> I can reboot a box 6 times and it comes up. >>> >>> Then at 3:00 am in the morning it reboots and the nic shows the >>> 169.x.x.x address. >>> >>> Disable and enable the nic and everything comes right back up. >>> >>> We are using the VMX or E1000 drivers and still get the same random >>> results. >>> >>> *From:*[email protected] >>> <mailto:[email protected]> >>> [mailto:[email protected]] *On Behalf Of *Todd Lemmiksoo >>> *Sent:* Thursday, June 11, 2015 1:13 PM >>> *To:* [email protected] >>> <mailto:[email protected]> >>> *Subject:* Re: [NTSysADM] >>> >>> We the same problem with our 2008 servers. There is a MS fix/patch >>> that sometimes fixes the nic. Else we just disable and reable the nic. >>> We use the vmx3net nic and vmtools are not always up-to-date. It is >>> very hard for us to get down time just to update vmtools. >>> >>> Todd Lemmiksoo >>> >>> On Jun 11, 2015 1:00 PM, "Jack Kramer" <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> What vNICs are you using? (E10000 or vmxnet3?) Tools up to date? >>> vSwitch settings? (Disabling MAC changes, promiscuous mode, etc?) >>> >>> On Jun 11, 2015, at 12:51 PM, Robb Whiting <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> Hello Everyone, >>> >>> I have an annoying problem that’s been vexing us for months now. >>> >>> All our servers are virtualized with static IPs running on VMware >>> hypervisors. >>> >>> The servers that have connections to more than 1 ip sometimes >>> drop their connection. >>> >>> Other machines connected to the same network don’t lose their >>> connection so I don’t think it’s the link between the hypervisor >>> and the switch. It appears to be a windows problem. >>> >>> Anyone else have servers running Windows 2k12 R2 that are >>> connected to multiple networks that somehow lose connection >>> randomly from time to time. >>> >>> If we disable and reenable the NIC then they come back up but >>> they really shouldn’t go down at all. >>> >>> Ideas? >>> >>> -Robb >>> >>> This e-mail and any files transmitted with it are property of Indiana >>> Members Credit Union, are confidential, and are intended solely for >>> the use of the individual or entity to whom this e-mail is addressed. >>> If you are not one of the named recipient(s) or otherwise have reason >>> to believe that you have received this message in error, please notify >>> the sender and delete this message immediately from your computer. Any >>> other use, retention, dissemination, forwarding, printing, or copying >>> of this email is strictly prohibited. >>> >>> Please consider the environment before printing this email. >>> >>> >> >> > > >
