VLAN Difference between Juniper and Cisco Switches

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A VLAN (Virtual Local Area Network) is a logical LAN segment which have unique broadcast domain. Basically, VLAN divides one physical switch to multiple logical switch. You can configure hundreds of VLANs in one EX series switch. No matter if its EX4200, EX3200 or EX2200. Today I will show you VLAN difference between Juniper and Cisco switches.

VLAN Difference between Juniper and Cisco Switches

VLAN Difference between Juniper and Cisco Switches

There are two port modes in Juniper switch i.e. access mode or trunk mode. The interface in access mode connects to a network device, such as laptop or an IP phone. The interface in trunk mode connects to other switches in the network. There are many differences between Juniper and Cisco switches.

  1. In Cisco switches the default port mode is dynamic desirable auto but in Juniper switch the default port mode is access mode.

  2. In Cisco switches the default VLAN is untagged and is the native VLAN i.e. VLAN 1 but in Juniper there is no default native VLAN. You must configure it manually.

  3. In Cisco switches the trunk ports accept all VLANs in the range of 1 to 4095 by default but in Juniper, trunk ports do not support any VLANs. You have to make it support manually.

  4. In Juniper switches, VLAN named Default is present by default and all the interfaces are under this default VLAN.

  5. Unlike Cisco switches Juniper switches doesn’t support VTP (VLAN Trunking Protocol) or DTP (Dynamic Trunking Protocol). Juniper switches support GVRP (Generic Attribute Registration Protocol) though.

  6. Juniper switches has two port modes i.e. access and trunk mode. Cisco switches have five port modes i.e. dynamic auto, dynamic desirable, access, trunk and nonegotiate mode.

  7. Juniper switches support 802.1Q protocol for trunk ports. Cisco switches support both 802.1Q and ISL (Inter Switched Link) protocols.

For more information you can go through Juniper or Cisco website.



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Bipin is a freelance Network and System Engineer with expertise on Cisco, Juniper, Microsoft, VMware, and other technologies. You can hire him on UpWork. Bipin enjoys writing articles and tutorials related to Network technologies. Some of his certifications are, MCSE:Messaging, JNCIP-SEC, JNCIS-ENT, and others.

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