What is a feature of SR-PCE?

The correct answer is B. It learns the topology information via OSPF or IS-IS or through BGP-LS.. SR-PCE (Segment Routing Path Computation Element) is a flexible topology-aware path computation engine. It can learn network topology from multiple sources: directly from IGP protocols (OSPF or IS-IS) when co-located or peered with routers in those domains, and from BGP-LS (BGP L

MPLS and Segment Routing

Question

Options

AIt learns the topology information via OSPF or IS-IS only.
BIt learns the topology information via OSPF or IS-IS or through BGP-LS.
CIt uses the IGP metric in its path calculations to optimize reachability.
DIt uses the TE metric in its calculations to optimize the cumulative TE metric.

How the community answered

(35 responses)

A
6% (2)
B
89% (31)
C
3% (1)
D
3% (1)

Explanation

SR-PCE (Segment Routing Path Computation Element) is a flexible topology-aware path computation engine. It can learn network topology from multiple sources: directly from IGP protocols (OSPF or IS-IS) when co-located or peered with routers in those domains, and from BGP-LS (BGP Link-State) for multi-domain or multi-layer topologies where direct IGP adjacency is not practical. Choice A is incorrect because it excludes BGP-LS. Choices C and D are incorrect because SR-PCE supports multiple optimization objectives (TE metric, IGP metric, latency, bandwidth, etc.) and is not restricted to a single metric type.

Topics

#Segment Routing#PCE#BGP-LS#Topology Discovery

Community Discussion

No community discussion yet for this question.

Full 300-510 Practice