In first part I did a general overview of the functionality and principles of operation of the NFX250, and also made … Read more >>
Recently I got Juniper NFX250 for tests, will disassemble it and figure out … Read more >>
Today we’ll talk about an alternative to MCLAG from Juniper – Virtual Chassis. With Virtual Chassis, you can control multiple devices as a single device, have multiple Routing Engines in the stack, and use the graceful Routing Engine switchover (GRES) … Read more >>
Recently, while setting up one more Juniper QFX5100 switch, i have run in to interesting case.
Since the switch was prepared as a classic TOR switch for IP fabric, it was necessary to place management to a routing-instance.
In Junos, … Read more >>
Consider an unusual case of bgp conditional advertisement triggered by lost of route.
Our task is:
Announce certain networks to backup uplink only if the default route from the main uplink is lost.
Both uplinks announce the default route – … Read more >>
Juniper EX4500 switches have lot of issues. One of them – packet buffer lack on microbursts when traffic flowing from 10G to 1G port .
This article describes Juniper EX4500 output discards troubleshooting on buffer lack.
The source of the … Read more >>
Describing the case when you need to selectively add the outer tag on certain Vlans and also transit some vlans intact. This can be done with selective QinQ on Juniper EX4500.
I will create transport vlan and specify what vlans … Read more >>
Short article about juniper configuration basics. This can be helpful for network engineers who are new to Juniper.
On Junos, the configuration is stored in a shared database called a shared or global configuration database.
When editing the config, a … Read more >>