350-060 · Question #86
An ISP operates a network that provides VPN service to enterprise customers. The customer uses an MPLS network that is designed with redundant equal cost paths in the core. An enterprise customer…
The correct answer is C. Issuing a traceroute from PE-A to PE-B may not be able to identify the congested link, because traffic. See the full explanation below for the reasoning.
Question
An ISP operates a network that provides VPN service to enterprise customers. The customer uses an MPLS network that is designed with redundant equal cost paths in the core. An enterprise customer reported an increased latency and drop rate for some traffic flows from site A to siteB. The enterprise customer is connected to PE-A at site A and PE-B at siteB. If the latency problem is caused by a congested link in the core along a path from site A to site B, which of the following statements is correct?
Options
- AIssuing a traceroute from PE-A to PE-B would definitely identify the congested link.
- BChecking the CPU utilization of the routers along the path of the traffic would help identify the congested link.
- CIssuing a traceroute from PE-A to PE-B may not be able to identify the congested link, because traffic
- DPerforming a sweep ping from PE-A to PE-B and from PE-B to PE-A with DF bit set would definitely
- EIssuing ping with record route and time stamp option from PE-A to PE-B and from PE-B to PE-A would
How the community answered
(67 responses)- A1% (1)
- B1% (1)
- C84% (56)
- D4% (3)
- E9% (6)
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