Can we configure multiple VLANs in l2 switch?
You can configure one or more VLANs to perform Layer 2 bridging. Thus, MX Series routers or EX Series switches can function as Layer 2 switches, each with multiple bridging, or broadcast, domains that participate in the same Layer 2 network. You can also configure Layer 3 routing support for a VLAN.
Can a l2 switch communicate between VLANs?
The simplest way to enable routing between the two VLANs to simply connect an additional port from each VLAN into a Router. The Router doesn’t know that it has two connections to the same switch — nor does it need to. The Router operates like normal when routing packets between two networks.
How do I connect two VLANs?
Step-by-Step Instructions
- Enable routing on the switch with the ip routing command.
- Make note of the VLANs that you want to route between.
- Use the show vlan command in order to verify that the VLANs exist in the VLAN database.
- Determine the IP addresses you want to assign to the VLAN interface on the switch.
Can two VLANs have the same subnet?
If the addresses are all different it is possible to route traffic using a very large number of rules which don’t correspond to the actual subnet configuration and will confuse anyone who inherits this from you. However, it is completely permissible to use the same RFC1918 subnets on different physical networks.
Why do I need layer 2 VLANs on my switch?
The need to configure several Layer 2 VLANs on a switch arises from the need to segment an internal Local Area Network (LAN) into different IP subnetworks. If you want for example to separate the different departments of your enterprise into different IP subnetworks, then each department should belong to its own Layer 2 VLAN.
What’s the best way to connect two L2 switches?
1) Better to always have an etherchannel, this helps you to be redundant on Layer 1. 4) Configure your L2 switch in VTP client mode initially to let VTP propagate the VLAN information to your switch & then hardcode it to VTP transparent.
How to connect two untagged VLANs from two different switches?
One cable goes from each of the different VLANs on the L2 switches into different VLANs on the L3 switch. As long as STP is disabled this seems to work fine. However, we tried this same scenario on this Cisco Small Business switch and only one of the two untagged VLANs on the Cisco will pass traffic at a time.
Can a VLAN 2 device connect to a router?
Without the use of a router the devices in VLAN 3 will not be able to communicate with devices that are outside of their broadcast domain (i.e. VLAN 2 devices could not reach VLAN 3 devices) Until recently, routers were the only devices capable of layer 3 protocols.