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Ericsson Exam ECP-206 Topic 1 Question 16 Discussion

Actual exam question for Ericsson's ECP-206 exam
Question #: 16
Topic #: 1
[All ECP-206 Questions]

An operator wants to ensure that they can differentiate their traffic types for the purpose of prioritization in their Ethernet LAN and IP/MPLS backbone.

Which three fields would be used? (Choose three.)

Show Suggested Answer Hide Answer
Suggested Answer: B, C

Two statements that are true regarding the LSP are:

The LSP refers to a sequence of routers that forward the MPLS packet based on labels. An LSP is a Label Switched Path, which is a path through an MPLS network that is established by signaling protocols such as LDP or RSVP-TE. An LSP consists of a sequence of routers (called Label Switching Routers or LSRs) that forward packets based on labels rather than IP addresses. Labels are short fixed-length identifiers that are attached to packets at the ingress router and removed at the egress router.Labels can be swapped or popped at intermediate routers according to their label forwarding tables78.

The LSP refers to a sequence of routers that add, remove, or change label values along the path. As mentioned above, an LSP consists of a sequence of routers that forward packets based on labels. Along the path, different routers may perform different operations on the labels depending on their role and configuration. The ingress router adds one or more labels to the packet before sending it into the MPLS network. The egress router removes all labels from the packet before sending it out of the MPLS network. The intermediate routers may swap one label with another label according to their label forwarding tables.This process is called label switching78.


by Floyd at Apr 26, 2024, 09:35 AM

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Chantell
2 months ago
This question is as clear as mud. I'll just choose the three options that sound the most tech-y and hope the instructor takes pity on me.
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Trinidad
28 days ago
E) PCP
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Jame
1 months ago
C) DSCP
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Lanie
2 months ago
A) Traffic Class (TC)
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Corrina
3 months ago
Wait, are we talking about Ethernet or IPv6? I'm so confused... Guess I'll just randomly pick three and hope for the best.
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Luisa
29 days ago
E) PCP
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Gladys
1 months ago
C) DSCP
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Jesus
1 months ago
A) Traffic Class (TC)
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Mariann
3 months ago
I'm not sure about ECN and VID. I think Traffic Class, DSCP, and PCP are the key fields for differentiation.
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Lachelle
3 months ago
Traffic Class (TC)? What is this, a video game? I'm sticking with the classic DSCP, VID, and PCP.
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Margery
2 months ago
Yeah, those are the standard fields for traffic prioritization.
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Florinda
2 months ago
DSCP, VID, and PCP are the way to go for sure.
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Elena
3 months ago
I agree with Sherita. Those fields are important for prioritizing traffic in the network.
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Ceola
3 months ago
Hmm, I'm not too sure about ECN... Does that even apply to Ethernet traffic? I think I'll play it safe and go with C, D, and E.
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Sherita
3 months ago
I think the three fields that would be used are Traffic Class, DSCP, and PCP.
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Laurel
3 months ago
DSCP, PCP, and VID seem like the obvious choices here. I'll go with those.
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Kasandra
2 months ago
Yes, ECN is also a key field for traffic prioritization.
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Cassie
2 months ago
DSCP is definitely important for quality of service.
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Ludivina
2 months ago
I agree, those fields are commonly used for traffic differentiation.
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Herminia
3 months ago
I think DSCP, PCP, and VID are the best options.
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Lavonne
3 months ago
I'm not sure about ECN and VID. I think Traffic Class, DSCP, and PCP are the key fields for prioritization.
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Aleisha
3 months ago
I agree with Albina. Those fields are important for prioritizing traffic in the network.
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Albina
4 months ago
I think the three fields that would be used are Traffic Class, DSCP, and PCP.
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