In this post I will try to clarify how to get a basic MPLS setup running. We will configure 6 routers in a lab setup and we will get some IP traffic through MPLS. The goal is not to explain all the details of MPLS, the goal is to get a setup running to see …
Just saw this in a Juniper Document Never thought about that. Anyway, I never saw a functional problem with it. But I guess they created the warning for any damage created on the chassis caused by those SFP’s. (they are a big bigger then optical sfp’s). CAUTION Do not install a copper transceiver in an …
Hi all I had to install some switches this week for a customer. I thought it might be interesting to share the config and explain why I did what. The config was for a company with not the most network knowledge, so I tried to simplify some things. I will explain further on.
This is an explanation how to configure vMX routers for VXLAN with Multicast control plane. The configuration can be used on MX routers with maybe some small adaptations. I didn’t try to run this config on a hardware MX router. For people interested in getting the JNCIP-DC certification. This is one of the topics required …
In this post we will configure an SRX firewall for Guest access. We will create the interfaces, policies and basic dhcp and dns services.
When reading through some Juniper articles I discovered this on the page about LACP: Note: On EX2300 and EX3400 switches, the LACP protocol must be configured with a periodic SLOW timer to prevent flaps during CPU intensive operations events such as routing engine switchover, interface flaps, and exhaustive data collection from the packet forwarding engine. Something …
A lot of people seem to struggle with DHCP on Juniper devices. Juniper didn’t really help when they released the JDCHP process / config. This article tries to show how to configure DHCP for client, server and relay. In both the old Legacy DHCP and JDHCP.
When you install a new network one of the things that needs to be planned is how to subnet your new setup. It has to be logical, secure, robust, future proof and it has to keep a logical layout in mind. In this article I will show some guidelines how you can do it and …
This is an article about some best practices I collected with advice from others and self experience. I focus mainly on connectivity and stability of the network. Less on security. I might write a different post later about security on network hardware.
I tried to connect Juniper EX4300 switches with Juniper QFX5100 switches with 40gbps DAC cables (QSFP+-40G-CU3M). Connection didn’t come up. First I thought I had to take them out of the VC (standard those QSFP slots on EX4300 are VC ports), but even after changing that it didn’t work. Google search later I found out …