Junos Basics – Automatic Configuration Archiving

In my previous Junos Basics post I covered configuring a Juniper EX2200C switch as a DHCP server. In this post we’ll step through a really nice feature of Junos that is an absolute no-brainer – configuring your Juniper device to automatically back up a copy of it’s configuration file to an FTP server every time […]

Junos Basics – EX2200C Switch as a DHCP server

In my previous Junos Basics post I covered a simple OSPF configuration in Junos. In this post I’ll step through configuring a Juniper EX2200C switch as a DHCP server. The EX2200C is a great little switch that’s ideal for a small branch office deployment, and one feature that you might look to take advantage of […]

Junos Basics – Single Area OSPF

In my previous Junos Basics post I covered a simple VRRP configuration in Junos. In this post I’ll run through a basic OSPF configuration on a pair of Juniper routers. Here’s our network: Objectives: Establish an OSPF neighbour relationship between R1 and R2 increase security by using md5 authentication Configure all router interfaces to be […]

Junos Basics – Virtual Router Redundancy Protocol (VRRP)

In my previous Junos Basics post I covered aggregating ethernet interfaces using LACP on a Juniper switch. In this post I’ll cover a simple VRRP configuration in Junos that provides first hop router redundancy for clients on a local LAN segment. Here’s our network: Note – all routers are running OSPF, with both interfaces on […]

Junos Basics – Aggregated Ethernet Interfaces (LACP)

In my previous Junos Basics post I covered configuring an 802.1Q Trunk between a Juniper EX2200C and a Cisco 2960S. This post will expand upon the previous one by bundling two interfaces together on each switch to form an aggregated link for the trunk. There are a few proprietary standards for aggregating ethernet links, but […]

Junos Basics – 802.1Q Trunks

In my previous Junos Basics post I covered creating RVI’s to enable routing between different VLAN’s. In this post I’ll cover configuring an uplink port on an EX2200-C switch to trunk the VLAN’s out to an access layer switch – in this case a Cisco 2960S. This will also allow us to compare the trunk […]

Junos Basics – Inter VLAN Routing

In my previous Junos Basics post I covered the configuration steps required to create VLAN’s on a Juniper switch and assign interfaces to them. In this post I’ll step through the config to enable routing between these VLAN’s and also show a couple of verification commands to check it’s working as expected. Firstly we configure […]

Junos Basics – Creating VLAN’s

This is the first in a series of blog posts covering some of the basics of Junos. In this post I’ll be covering the process of creating VLAN’s on a Juniper switch and assigning interfaces to them. The model of switch I am using is an EX2200-C, running Junos 11.4R1.6. Creating the VLANs’s is very […]