Discuss Ericsson ECP-206 Exam Topic 1 Question 16

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.)

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.

Get Premium ECP-206 Questions as Interactive Web-Based Practice Test or PDF Real Exam Format Detailed Explanations Instant Access Get Your Practice Test

38 comments · newest first

Chery 10 months ago

Wait, are we really using ECN for this? That seems off!

Rolland 11 months ago

I agree with TC and DSCP, but I'm not sure about PCP.

Tresa 11 months ago

VID is crucial too, right? Can't believe it's not in the top three!

Bo 11 months ago

I think ECN is also important, but not for traffic differentiation.

Lauran 11 months ago

Definitely TC, DSCP, and PCP for prioritization.

Mayra 12 months ago

I definitely recall that Traffic Class and DSCP are used for prioritization. PCP might also be a good choice since it relates to Ethernet frames.

Mendy 12 months ago

I practiced a similar question where we had to identify fields for VLAN tagging. I think VID could be relevant here too, but I'm not completely sure.

Verda 12 months ago

I'm a bit unsure about ECN and its role in prioritization. I feel like it might be more about congestion management than traffic differentiation.

Glen 1 year ago

I remember studying about QoS and how important it is to differentiate traffic types. I think DSCP is definitely one of the fields we need.

Benedict 1 year ago

Hmm, I'm a little unsure about this one. I know DSCP is important, but I can't quite remember if ECN is also used for prioritization or just for congestion signaling. I'll have to think it through carefully.

Tomas 1 year ago

Okay, let me think this through. I know DSCP is used for IP traffic prioritization, and TC is for Ethernet. But I'm not sure about ECN and VID - I'll have to double-check those in my notes.

Lon 1 year ago

Hmm, this seems like a pretty straightforward question. I think the key fields to focus on are DSCP, TC, and PCP. Those should give the operator the ability to differentiate and prioritize the traffic types.

Dorian 1 year ago

Easy peasy! The answer is DSCP, TC, and PCP. Those are the three main fields used for traffic differentiation in Ethernet and IP/MPLS networks. Should be a quick one to knock out on the exam.

Jesusa 1 year ago

This question seems straightforward - I think I can apply the TOGAF 9 guidelines to design the full architecture and present it to the Architecture Board.

Mona 1 year ago

The key here is that we need to add a survey to the risk calculation. Based on that, I think the answer is D, Change Management - Risk Survey. That plugin should let us include a survey as part of the risk assessment.

Chantell 1 year 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.

Trinidad 1 year ago

↳ replying to Chantell

E) PCP

Jame 1 year ago

↳ replying to Chantell

C) DSCP

Lanie 1 year ago

↳ replying to Chantell

A) Traffic Class (TC)

Corrina 1 year 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.

Luisa 1 year ago

↳ replying to Corrina

E) PCP

Gladys 1 year ago

↳ replying to Corrina

C) DSCP

Jesus 1 year ago

↳ replying to Corrina

A) Traffic Class (TC)

Mariann 1 year ago

I'm not sure about ECN and VID. I think Traffic Class, DSCP, and PCP are the key fields for differentiation.

Lachelle 1 year ago

Traffic Class (TC)? What is this, a video game? I'm sticking with the classic DSCP, VID, and PCP.

Margery 1 year ago

↳ replying to Lachelle

Yeah, those are the standard fields for traffic prioritization.

Florinda 1 year ago

↳ replying to Lachelle

DSCP, VID, and PCP are the way to go for sure.

Elena 1 year ago

I agree with Sherita. Those fields are important for prioritizing traffic in the network.

Ceola 1 year 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.

Sherita 1 year ago

I think the three fields that would be used are Traffic Class, DSCP, and PCP.

Laurel 2 years ago

DSCP, PCP, and VID seem like the obvious choices here. I'll go with those.

Kasandra 1 year ago

↳ replying to Laurel

Yes, ECN is also a key field for traffic prioritization.

Cassie 1 year ago

↳ replying to Laurel

DSCP is definitely important for quality of service.

Ludivina 1 year ago

↳ replying to Laurel

I agree, those fields are commonly used for traffic differentiation.

Herminia 1 year ago

↳ replying to Laurel

I think DSCP, PCP, and VID are the best options.

Lavonne 2 years ago

I'm not sure about ECN and VID. I think Traffic Class, DSCP, and PCP are the key fields for prioritization.

Aleisha 2 years ago

I agree with Albina. Those fields are important for prioritizing traffic in the network.

Albina 2 years ago

I think the three fields that would be used are Traffic Class, DSCP, and PCP.

Ericsson ECP-206 Exam - Topic 1 Question 16 Discussion