CCNA FAQ: Virtual LANs Q1. In a LAN, which of the following terms best equates to the term VLAN? a. Collision domain b. Broadcast domain c. Subnet domain d. Single switch e. Trunk Answer: B Q2. Imagine a switch with three configured VLANs. How many IP subnets are required, assuming that all hosts in all VLANs want to use TCP/IP? a. 0 b. 1 c. 2 d. 3 e. You can’t … [Read more...]
CCNP Switch: Multilayer Switching
CCNP Switch: Multilayer Switching InterVLAN Routing Recall that a Layer 2 network is defined as a broadcast domain. A Layer 2 network also can exist as a VLAN inside one or more switches. VLANs essentially are isolated from each other so that packets in one VLAN cannot cross into another VLAN. To transport packets between VLANs, you must use a Layer 3 device. … [Read more...]
InterVLAN Routing
InterVLAN Routing Objective: Configure, verify, and troubleshoot interVLAN routing One of the remarkable features about VLAN segmentation with a Layer 2 switch is that the traffic from one VLAN remains separate from all other VLANs. Quite often, however, devices need to communicate or access services with another device that is in another VLAN. Because the VLANs are in … [Read more...]
CCNP Switch Notes InterVLAN Routing
CCNP Switch Notes InterVLAN Routing VLANs divide the network into smaller broadcast domains but also prohibit communication between domains. To enable communication between those groups–without also passing broadcasts–routing is used. InterVLAN Routing Using an External Router A Layer 2 switch can connect to a router to provide reachability between VLANs. This can be done … [Read more...]