QuestionQ86

Routing

You are configuring a network with a stacked pair of CX 6300M switches for distribution and Layer 3 services. You create a new user VLAN that will be used on multiple downstream CX 6200 access-switch stacks connected to the distribution stack. You will create multiple similar VLANs/subnets that will be used across multiple access stacks.

What is the correct way to configure the routable interface for the subnet associated with this VLAN?

  • A Create an SVI in the subnet on each downstream switch.
  • B Create an SVI in the subnet on the CX 6300M stack.
  • C Create an SVI in the subnet on the CX 6300M stack, and assign the management address of each downstream switch stack to a different IP address in the same subnet.
  • D Create a physically routed interface in the subnet on the CX 6300M stack for each downstream switch.
Explanation

An SVI is the Layer 3 interface associated with a VLAN. Because the CX 6300M stack is the centralized distribution and Layer 3 gateway for a VLAN extended across the downstream access stacks, it requires one SVI with an address in that VLAN’s subnet. The access stacks carry the VLAN at Layer 2 and do not need separate SVIs for the user subnet.

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