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- A quick summarized view to Private VLAN (PVLAN)
To begin with PVLAN, let’s look at the concept of VLAN as a broadcast domain In general VLAN is a concept of segregating a physical network, so that separate broadcast domains can be created Private VLANs (PVANs) will split the primary VLAN domain [also a segregated network] into multiple isolated broadcast sub-domains
- What is the native vlan? - Cisco Learning Network
The native vlan is used to carry untagged traffic accross a trunk However lets say your native vlan is 1 (by default) Best practices would say to disable vlan 1 and use a different for native vlan as a switchport not configured will be automatically in vlan 1 The native vlan carries other traffic such as DTP updates
- vlan 0, 1, and 4095 are reserved: what are they reserved for?
Wikipedia agrees that vlans 0 and 4095 are reserved This article says that Cisco reserves vlan 1 (in addition to vlans 0 and 4095) But I am having trouble finding good information on what are these vlans reserved for? and or why they are reserved? Please include good authoritative sources please or references to the spec
- What is the purpose of native VLAN on a trunk link?
By further reading more about VLAN hopping, I get their idea of putting VLAN1 as untagged traffic (aka native VLAN) on the trunk link, so if we put other access ports (non-trunk) in the same VLAN1, a hacker can exploit it by inserting a tag and send data to any VLAN
- Management Traffic and native vlan - Cisco Learning Network
Every vlan you assign to a port (access or trunk) must exist in order to assign it That may vary if you are using VTP in your network and that device is in transparent mode
- Why and how are Ethernet Vlans tagged?
I hear about VLAN tagging, but I don’t quite understand the concept I know a trunk cannot accept untagged packets without configuring a native VLAN, and that access ports only accept untagged pa
- VLAN Pruning - Cisco Learning Network
The VLAN would have to be manually added back to the trunk So the differences are really the difference between automation and manual granular control
- VLAN VS Subnetting - Cisco Learning Network
VLAN's were initially created to well create Virtual Local Area Networks, seperate from different areas There are multiple reasons why you would use one instead of the other And a router is stil needed to segment, which is a large issue in networking Expand Post LikeLikedUnlike Reply Admin Edited February 16, 2020 at 1:35 AM Ron-
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