New Training: Configure Layer 2 Switching on Junos
In this 11-video skill, CBT Nuggets trainer Knox Hutchinson explores the ways that Junos devices can implement layer 2 switching in various settings. Watch this new training.
Learn with one of these courses:
This training includes:
1.2 hours of training
You’ll learn these topics in this skill:
Intro Junos Switching
A Layer 2 Refresher
EX-Series: Create VLANs
EX-Series: Configure Access and Trunk Ports
EX-Series: Inter-VLAN Routing
EX-Series: Configure the Voice VLAN
MX: Configure VLANs
MX: Configure Access and Trunk Ports
MX: Inter-VLAN Routing
Now Do It With QFX-Series Switches
Summarizing Junos Switching
How To Create A Basic VLAN With A Jun EX Series Device
Segmenting business networks with VLANs is an important function for a network with the business environment. VLANs help separate networks into groupings of logical nodes as well as limit the amount of network traffic flowing across the entire LAN. If a network has more than 200 devices, uses a lot of broadcast traffic, or requires additional security measures, VLANs should be configured in that network environment.
Creating a new VLAN for Juno EX devices can be relatively straightforward with these steps:
Apply a unique identifier to the VLAN
Assign one or more port interfaces for that VLAN
Below is an example of creating a basic VLAN through the Juno command line:
set VLANs employee-clan set vlans employee-vlan vlan-id 100 set interfaces ge-0/0/1 unit 0 family ethernet-switching vlan members employee-vlan set interfaces ge-0/0/2 unit 0 family ethernet-switching vlan members employee-vlan set interfaces ge-0/0/3 unit 0 family ethernet-switching vlan members employee-vlan
After interfaces are assigned to a VLAN, those interfaces will function in access mode. All interfaces in a VLAN will be under a single broadcast domain even if those interfaces are on different switches. Traffic can be assigned on any switch to a specific VLAN by referencing either the interface itself or the MAC addresses of the devices sending network traffic.
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