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2. VLAN - Wikipedia

   en.wikipedia.org/wiki/VLAN

   Inter-Switch Link (ISL) is a Cisco proprietary protocol used to interconnect switches and maintain VLAN information as traffic travels between switches on trunk links. ISL is provided as an alternative to IEEE 802.1Q.

3. Switch virtual interface - Wikipedia

   en.wikipedia.org/wiki/Switch_virtual_interface

   A switch virtual interface (SVI) represents a logical layer-3 interface on a switch. VLANs divide broadcast domains in a LAN environment. Whenever hosts in one VLAN need to communicate with hosts in another VLAN, the traffic must be routed between them. This is known as inter-VLAN routing.

4. Network switch - Wikipedia

   en.wikipedia.org/wiki/Network_switch

   A network switch is a multiport network bridge that uses MAC addresses to forward data at the data link layer (layer 2) of the OSI model. Some switches can also forward data at the network layer (layer 3) by additionally incorporating routing functionality. Such switches are commonly known as layer-3 switches or multilayer switches. [2]

5. IEEE 802.1Q - Wikipedia

   en.wikipedia.org/wiki/IEEE_802.1Q

   IEEE 802.1Q, often referred to as Dot1q, is the networking standard that supports virtual local area networking (VLANs) on an IEEE 802.3 Ethernet network. The standard defines a system of VLAN tagging for Ethernet frames and the accompanying procedures to be used by bridges and switches in handling such frames.

6. Private VLAN - Wikipedia

   en.wikipedia.org/wiki/Private_VLAN

   Private VLAN, also known as port isolation, is a technique in computer networking where a VLAN contains switch ports that are restricted such that they can only communicate with a given uplink. The restricted ports are called private ports .

7. Virtual Link Trunking - Wikipedia

   en.wikipedia.org/wiki/Virtual_Link_Trunking

   The alternative is to have different logical switches, but then one of the used links will have to be blocked to ensure a loop-free topology (which can partially be overcome by using Multiple Spanning Tree or Cisco's proprietary per VLAN spanning tree. Spanning Tree Protocol is relatively slow in convergence, which can result in periods that ...

8. Multiple Registration Protocol - Wikipedia

   en.wikipedia.org/wiki/Multiple_Registration_Protocol

   Within a layer 2 network, MVRP provides a method to dynamically share VLAN information and configure the needed VLANs. For example, in order to add a switch port to a VLAN, only the end port, or the VLAN-supporting network device connected to the switch port need be reconfigured, and all necessary VLAN trunks are dynamically created on the ...

9. VLAN Trunking Protocol - Wikipedia

   en.wikipedia.org/wiki/VLAN_Trunking_Protocol

   VLAN Trunking Protocol (VTP) is a Cisco proprietary protocol that propagates the definition of Virtual Local Area Networks on the whole local area network. [1] To do this, VTP carries VLAN information to all the switches in a VTP domain.