Networking, system administration and more
Networking, system administration and more
After I have deployed the vMX on a CentOS 7.4 host that has an IPv6 address for management, I noticed that IPv6 stopped working when the vMX was started. In my case, the IPv6 address was originally on the interface bond0. When the vMX starts a bridge interface is created […]
Read moreAfter upgrading Unifi on a Debian server running a Ubiquiti Unifi controller, I ran into an issue where the web interface would not load. After poking through the logs I found that the issue appeared to be with MongoDB. In the server log file located at /var/log/unifi/server.log for my install […]
Read moreWhile managing a virtual chassis for 4 QFX5100 devices, I managed to create an inconsistent state between the virtual chassis members. When committing the configuration, the following error would show: I tried a few things to fix this at first, eg. removing the IRB interface in question then trying to […]
Read moreWhen starting a Juniper vMX router you may get an error from the vMX.sh script that shows that the libvirt files could not be generated followed by “setlocale: No such file or directory” one or more times. The error looks like this: Ensure that both the hosts’s locale and your […]
Read moreWhen starting a Juniper vMX router you may get a warning from the vMX.sh script that shows that the IOMMU status is disabled. It will look like this: This seems to occur if the host OS is CentOS – the shell script to detect the IOMMU does not validate this […]
Read moreWhen starting a Juniper vMX router you may get an error from the vMX.sh script that states “Insuffecient cores to pin” (note the incorrect spelling). The error looks like this: You may have over-assigned the number of CPU’s to the vFPC/vCP. Make sure that there is less CPU’s allocated to […]
Read moreNOTE: I originally published this page in 2018; instructions may now be out of date. When starting a Juniper vMX router you may get an error from the vMX.sh script that shows that the I40E drivers could not be checked. The error looks like this: The first thing to do […]
Read moreNOTE: I originally published this page in 2018; instructions may now be out of date. When deploying a Juniper vMX router on both a CentOS and Ubuntu host I ran into an issue when starting it. The symptoms were slightly different: For CentOS when the vMX started it would get […]
Read moreBy default, when you install a Juniper vMX device the physical interfaces will all be named “ge-0/0/*” and the output from show interface ge-0/0/X will show the speed as 1G. If you are using SR-IOV with 10G/100G NIC’s this can be a bit confusing. According to the Juniper docs this […]
Read moreRecently I upgraded the iDRAC on a Dell R730 with an iDRAC 8 and had a strange issue – the iDRAC went into a reboot loop. The firmware upgrade initially was from 2.50.50.50 to 2.52.52.52. After the upgrade the iDRAC could be accessed for short periods of time via web […]
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