H12-891_V1.0 · Question #495
Which of the following methods can be used to introduce traffic into the SR-MIPLS TE tunnel? (Multiple choice)
The correct answer is A. Configure a static route and specify the outbound interface of the static route as the tunnel B. Treat the SR-IPLS TE tunnel as a logical link to participate in IGP route calculation C. In the execution statement of policy routing, use the SR-MPLS TE tunnel interface as the outbound D. By configuring tunnel policies. All four options are correct because SR-MPLS TE tunnels support multiple traffic steering mechanisms, each suited to different network designs and traffic engineering requirements. Option A is correct: Configuring a static route and pointing its outbound interface to the…
Question
Which of the following methods can be used to introduce traffic into the SR-MIPLS TE tunnel? (Multiple choice)
Options
- AConfigure a static route and specify the outbound interface of the static route as the tunnel
- BTreat the SR-IPLS TE tunnel as a logical link to participate in IGP route calculation
- CIn the execution statement of policy routing, use the SR-MPLS TE tunnel interface as the outbound
- DBy configuring tunnel policies
How the community answered
(31 responses)- A100% (31)
Explanation
All four options are correct because SR-MPLS TE tunnels support multiple traffic steering mechanisms, each suited to different network designs and traffic engineering requirements.
Option A is correct: Configuring a static route and pointing its outbound interface to the SR-MPLS TE tunnel is the simplest steering method - the router forwards any traffic matching that prefix directly into the tunnel, bypassing IGP decisions.
Option B is correct: This describes the IGP Shortcut feature, where the tunnel is advertised as a logical link to the IGP (e.g., OSPF or IS-IS). The IGP treats the tunnel endpoint as a directly connected neighbor with a configurable metric, so normal SPF calculations can naturally route traffic through the tunnel.
Option C is correct: Policy-Based Routing (PBR) lets you match specific traffic (by source, destination, DSCP, etc.) in a route-policy and explicitly redirect it to the SR-MPLS TE tunnel interface as the outbound - giving fine-grained, per-flow control that overrides the routing table.
Option D is correct: Tunnel policies (also called tunnel selection policies) provide a dedicated mapping mechanism that binds prefixes or traffic classes to specific tunnels based on configured criteria, commonly used for scalable TE deployments.
Since all four are valid, there are no wrong distractors in this question.
Memory tip: Use the acronym SIPT - Static route, IGP shortcut, Policy routing, Tunnel policy - to recall all four traffic steering methods for SR-MPLS TE tunnels on the exam.
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