Vyacheslav, Автор в IT Blog

ONU traffic shaping on Huawei MA5600 OLT

Speed shaping on ONU is performed using dba-profile, which is specified in ont-lineprofile, in this article I will give an example of how to configure it.

Huawei OLT Bridge ONU

Once it was necessary to link several offices in one organization into one common local network, all points were connected by different ONUs, and by default, traffic between ONUs in Smart Vlan is blocked. The setup will be done on Huawei SmartAX MA5683T, the same can be done on other Huawei MA5600 OLTs.

NextCloud. Background jobs via cron

I will give an example of configuring the execution of NextCloud background jobs via Cron, which will work stably in contrast to AJAX background jobs.

Solution: Specified key was too long; max key length is 767 bytes

Once on Ubuntu Server 18.04 I upgraded Zabbix 4.4 to 5.0 and found an error in the logs during the upgrade:

Terra Link

Version: 1.70
File size: 3.7 Mb
Official website: www.terraelectronics.com

Firmware for PBI DMM-1400P

Version: 14PR006D (32 IP)
File size: 3.2 MB
Download firmware 14PR006D for PBI 1400P-S2 32 channels
https://files.ixnfo.com/Firmware/PBI/14PR006D-DMM-1400P-32IP-S2.rar

Testing a DHCP server with dhcpperf

dhcpperf is a DHCP load testing tool.

Installing FRRouting on Ubuntu 18.04

For example, I will install FRRouting on Ubuntu 18.04

How to change innodb_flush_method in MySQL

innodb_flush_method defines the method for flushing data from RAM to disk.

High CPU load on Cisco Nexus 3064

Once I discovered on the graphs a large burst of Multicast packets on one of the ports of the Cisco Nexus 3064 switch, while the CPU load increased to 30%, before that it was 12% with L2 traffic of 13 Gbit/s.