300-510 · Question #181
Refer to the exhibit. An engineer is troubleshooting an issue with traffic steering using the color- only automated steering mechanism. BGP is failing to automatically steer traffic into an SR policy
The correct answer is A. Cisco(config)# segment-routing. This question is about Segment Routing Traffic Engineering (SR-TE) with BGP color-only automated steering. Color-only steering allows BGP to automatically steer traffic into an SR policy by matching a BGP route's color extended community with an SR policy color, regardless of the
Question
Refer to the exhibit. An engineer is troubleshooting an issue with traffic steering using the color- only automated steering mechanism. BGP is failing to automatically steer traffic into an SR policy with the given color of a route, regardless of the next hop. The Layer 2 configuration is correct, and the physical connection between the devices is working normally. Which additional command sequence must the engineer add to correct the issue?
Exhibit
Options
- ACisco(config)# segment-routing
- BCisco(config)# segment-routing traffic-eng
- CCisco(config)# segment-routing
- DCisco# configure
How the community answered
(27 responses)- A93% (25)
- B4% (1)
- D4% (1)
Explanation
This question is about Segment Routing Traffic Engineering (SR-TE) with BGP color-only automated steering. Color-only steering allows BGP to automatically steer traffic into an SR policy by matching a BGP route's color extended community with an SR policy color, regardless of the next hop. For this to function, SR must first be enabled globally on the router. The command 'segment-routing' at global configuration mode activates the segment-routing subsystem, which is the foundational prerequisite before any SR-TE policies or BGP color steering can operate. Without this global enablement, SR policy color matching is simply inactive. Note that answers A and C appear identical in presentation ('Cisco(config)# segment-routing'), which is a common exam formatting artifact - the distinction may lie in additional sub-commands shown in the actual exhibit. Option B ('segment-routing traffic-eng') enables the SR-TE component but requires the parent 'segment-routing' command first. Option D is just entering configuration mode and accomplishes nothing on its own.
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