If you're using vQFX in GNS3 or EVE-NG, you might have come across the below error. error: the l2-learning subsystem is not running , for example the below operational commands will give you the specific error. …

If you're using vQFX on any simulating tools, you might have noted that it comes up with a pre-configuration, that may not be required to run or test your labs. It gives a total messed up view when you check the configurations on the swit…

In this article, lets understand how to configure Interface range on Juniper switch. Interface range can be very useful in a scenario where same configurations have to be applied to a range of ports. Here instead of going into each and every…

Topology: In this example, let's configure the interface xe-0/0/10 to receive an IP from the DHCP Server which is the Home Router in this case. To add the Home Router to the topology, right click on the Lab page and select Network Select the typ…

Topology: The purpose of this article is to provide basic understanding about the OSPF configuration on a Juniper switch. In this Example 2 VLANs are used, VLAN 10 and VLAN 20.  root@JNP-sw-01> show interfaces irb.10 terse  Interface         Adm…

This article briefs the set of commands used to disable and enable interfaces on juniper switch, which is equivalent to shutdown and no shutdown used in Cisco products. To disable an Interface use the below command in the configuration mode and c…

show interfaces terse Displays interface summary. root@JN-SW-01> show interfaces terse Interface               Admin Link Proto    Local                 Remote xe-0/0/5                up    up xe-0/0/5.0              up    up   eth-switch show sy…

Topology: To make VPC5 communicate with VPC6, lets add static route on both the Switches. VPC5 is in vlan10 and VPC6 is in vlan20. VPC5 IP: 172.17.10.1/24 GW: 172.17.10.100 VPC6 IP: 172.17.20.1/24 GW: 172.17.20.100 irb.10 = 172.17.10.100 irb.20 = 1…

IRB (Integrated Routing and Bridging) is a virtual L3 interface attached to a VLAN, which is similar to SVI in Cisco. It acts as the L3 gateway for the devices associated with a specific VLAN. Topology: Configuration: 1. Create a VLAN by assigning a…

Topology 1. Jump into the configuration mode.                         root@vqfx-re> configure                         Entering configuration mode                        {master:0}[edit]                         root@vqfx-re#  2. Create vlans.   …