Differences between the local VLAN and the End-to-end VLAN

Recently focused on the next VLAN division, found that the VLAN divided into 2 kinds, usually used in the work called the local VLAN, there is a kind of called end-to-end VLAN, generally used in more than 10 or dozens of switch-sized enterprise network.

Baidu through the difference between the two, the description is not too intuitive, here to publish my understanding:

1. Local Vlan

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From this graph, it can be seen that the interoperability of data between different switches, must rely on the physical level of the link to divide the same VLAN to communicate, and if the part of the need to access the green part of the access can only rely on the route mode.

2. End-to-end Vlan

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When data interoperability between multiple sets of switches is required, there is a dedicated technology (Cisco's called VTP protocol, call Garp protocol); when a new VLAN is configured on a VTP Server, the VLAN's configuration information is automatically propagated to all other Switch . This can be achieved, the different physical switches, as long as the same VLAN segments, it is possible to communicate with each other.

Comparison of two VLAN deployment methods

end-to-end VLANs	local VLANs
pros:	pros:
  The same security or QoS policies can be applied to the relevant areas without geographical restrictions.	flexible design;     Predictable flow path,   Flexible paths can be created more easily.
cons	cons
all switches Learn all VLANs ;   Broadcast information flooding to all relevant switches;  	More demand for routing equipment; Users in the same location belong to a broadcast domain

This article is from "newcomer-jasen" blog, please make sure to keep this source http://shengjian.blog.51cto.com/3022827/1601690

Differences between the local VLAN and the End-to-end VLAN