The network team is planning to implement IPv6 on the company's existing IPv4 network infrastructure. The network currently uses IS-IS to share routes between peers. Which task must the team perform so that IS-IS will run in multitopology mode on the updated IPv6 network?

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D. Configure the IS-IS IPv6 metric on the dual-stack links. Configuring the IS-IS IPv6 metric on dual-stack links is essential for enabling IS-IS to recognize and route IPv6 traffic alongside IPv4. This action explicitly instructs the IS-IS process to include these interfaces in the IPv6 routing topology, thereby activating multitopology mode for IPv6. This allows IS-IS to build separate SPF trees for IPv4 and IPv6.

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A. Configure the links between the network routers as point-to-point. Configuring links as point-to-point is a general IS-IS interface type configuration and does not specifically enable IPv6 routing or multitopology mode.

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B. Configure the network routers to use metric-style wide. Configuring `metric-style wide` extends the metric range for IS-IS, allowing for larger topologies, but it does not enable IPv6 routing itself.

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C. Configure the network routers as Level 2 routers. Configuring routers as Level 2 routers defines their routing domain participation but is unrelated to enabling IPv6 multitopology routing.

The network team is planning to implement IPv6 on the company's existing IPv4 network infrastructure. The network currently uses IS-IS to share routes between peers. Which task must the team perform…

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