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2. Cisco Inter-Switch Link - Wikipedia

   en.wikipedia.org/wiki/Cisco_Inter-Switch_Link

   Cisco Inter-Switch Link (ISL) is a Cisco proprietary link layer protocol that maintains VLAN information in Ethernet frames as traffic flows between switches and routers, or switches and switches. [1] ISL is Cisco's VLAN encapsulation protocol and is supported only on some Cisco equipment over the Fast and Gigabit Ethernet links. It is offered ...

3. Inter-Switch Link - Wikipedia

   en.wikipedia.org/wiki/Inter-Switch_Link

   Cisco Inter-Switch Link (ISL) is a proprietary protocol that maintains VLAN information as traffic flows between switches and routers. Topics referred to by the same term This disambiguation page lists articles associated with the title Inter-Switch Link .

4. 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. ISL is available only on some Cisco equipment and has been deprecated. [11]

5. InterSwitch Trunk - Wikipedia

   en.wikipedia.org/wiki/InterSwitch_Trunk

   InterSwitch Trunk (IST) is one or more parallel point-to-point links (Link aggregation) that connect two switches together to create a single logical switch.The IST allows the two switches to share addressing information, forwarding tables, and state information, permitting rapid (less than one second) fault detection and forwarding path modification.

6. Switch virtual interface - Wikipedia

   en.wikipedia.org/wiki/Switch_virtual_interface

   This is known as inter-VLAN routing. On layer-3 switches it is accomplished by the creation of layer-3 interfaces (SVIs). Inter VLAN routing, in other words routing between VLANs, can be achieved using SVIs. [1] SVI or VLAN interface, is a virtual routed interface that connects a VLAN on the device to the Layer 3 router engine on the same device.

7. VLAN Trunking Protocol - Wikipedia

   en.wikipedia.org/wiki/VLAN_Trunking_Protocol

   A VTP domain for a network is a set of all contiguously trunked switches with the matching VTP settings (domain name, password and VTP version). All switches in the same VTP domain share their VLAN information with each other, and a switch can participate in only one VTP management domain. Switches in different domains do not share VTP information.