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What operation is performed by an egress Label Edge Router (eLER) when it receives an MPLS labeled packet?
Suggested Answer: D
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24 comments · newest first
TE
Teddy
11 months ago
I always get confused with these label operations!
LA
Larae
11 months ago
Yup, it sends it to the next IP router after popping.
JA
Janey
11 months ago
Wait, are you sure about that? I thought it just forwarded without popping.
KA
Kayleigh
11 months ago
Definitely option D! That's how it works.
JU
Jules
12 months ago
eLER pops the MPLS label before forwarding.
ET
Ettie
12 months ago
I'm leaning towards option D, where it pops the label, but I could be mixing it up with another concept we studied.
MO
Mollie
1 year ago
I feel like it might just forward the packet without changing the label, but that seems too simple for an egress router.
MI
Michell
1 year ago
I remember practicing a question like this, and I think it was about how the eLER interacts with the MPLS labels.
DE
Denny
1 year ago
I think the eLER pops the MPLS label before sending it to the next router, but I'm not completely sure.
TA
Tawna
1 year ago
Ah, I remember this from the lectures. The eLER is responsible for removing the MPLS label and handing off the packet to the IP network. Option D is the correct answer here.
TA
Talia
1 year ago
I'm a bit unsure on this one. The eLER is the exit point, so it could be forwarding without changing the label, or popping it off. I'll have to review my MPLS knowledge to decide between A and D.
HE
Helga
1 year ago
I'm pretty confident this is about swapping the label. The eLER has to update the label before sending the packet to the next hop, right? I'll go with option B.
RE
Rebecka
1 year ago
Okay, let's see. The eLER is the edge router, so it's probably doing something different than the internal LSRs. I'm leaning towards option D, popping the label and forwarding to the next IP router.
MA
Marshall
1 year ago
Hmm, this looks like a tricky MPLS question. I'll need to think carefully about the different operations an eLER can perform on labeled packets.
VE
Verona
1 year ago
I feel pretty confident about this one. The key is recognizing that the question is asking about a change that arises from experience, so Learning seems like the most relevant and accurate answer choice.
LE
Leah
1 year ago
Seems like order quantity could be important, but I wonder if forward integration plays a role too? I need to recall what we said about that.
LA
Laticia
1 year ago
Honestly, I'm torn. “None of the above” sounded right at first, but now I'm questioning whether all the other options have merit.
FE
Felix
1 year ago
Hmm, this seems like a pretty straightforward question about server hardware. I'll need to think carefully about where capacity drives are typically installed in different server types.
OR
Oretha
2 years ago
Totally! It made me second-guess my understanding of MPLS operations.
ME
Merlyn
2 years ago
Hmm, that does make sense. Anyone find the question difficult?
EA
Earnestine
2 years ago
I agree with User3. The eLER should pop the MPLS label and forward it to the next IP router.
AR
Arlette
2 years ago
I'm leaning towards D. Popping the MPLS label makes sense to me.
ME
Merlyn
2 years ago
Yeah, it was tricky! What do you think the right answer is?
OR
Oretha
2 years ago
Hey, did you see the question about egress Label Edge Router?