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A customer is running out of IP addresses in a network segment. What will happen If they add an additional IPsubnet to the same VLAN?
Suggested Answer: D
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Adding an additional IP subnet to the same VLAN means that devices configured with either subnet can communicate at Layer 2 without the need for routing. This is because they are on the same VLAN and thus in the same broadcast domain. However, to communicate between subnets, an L3 device or inter-VLAN routing would be required.
34 comments · newest first
TO
Tonja
11 months ago
Users can still communicate without L3? That's interesting!
KI
King
11 months ago
A single SVI with subinterfaces? That's a neat trick!
LI
Lili
11 months ago
Wait, does that mean IGMP will actually fail? Sounds odd.
VI
Virgina
12 months ago
Totally agree, that's how VLANs work!
JU
Justine
12 months ago
Adding a subnet in the same VLAN means broadcasts will hit all ports.
DI
Diane
12 months ago
I feel like users should still be able to communicate without routing, but I’m not clear on how adding a subnet affects that.
LA
Lavera
1 year ago
If I remember correctly, having multiple subnets in the same VLAN could lead to broadcast storms, but I'm not entirely certain.
JO
Josephine
1 year ago
I think I saw a practice question about IGMP and VLANs, but I can't recall if it specifically mentioned multiple subnets.
CH
Charlene
1 year ago
I remember something about broadcasts in VLANs, but I'm not sure if adding a subnet would cause issues with traffic.
DO
Dorethea
1 year ago
Ah, I see. If we add a new subnet to the same VLAN, we could end up with a single SVI using multiple subinterfaces. That's an important consideration.
OR
Ora
1 year ago
I'm a bit confused on this one. I'll need to review my notes on VLAN design and subnet configuration to figure out the right approach.
BO
Boris
1 year ago
Okay, let me see. I think the key here is understanding how broadcasts and IGMP work across multiple subnets in the same VLAN.
AN
An
1 year ago
Hmm, this is a tricky one. I'll need to think through the implications of adding a new subnet to the same VLAN.
RE
Rebbeca
1 year ago
Interesting. I wonder if users would be able to reach each other directly within the same VLAN without going through a Layer 3 point. I'll need to think that through.
AL
Albert
1 year ago
This is a tricky one. I'm not super familiar with all the tools mentioned, so I'll need to do a quick review to make sure I understand the capabilities of each. But I'm confident I can figure out the best approach once I've looked into it a bit more.
PA
Pamella
2 years ago
Wait, does that mean they're running out of IP addresses because they're using the same VLAN for everything? That's like using a single room for a whole family reunion!
WI
Wilbert
2 years ago
Haha, I bet the network admin is pulling their hair out trying to figure out where all the IP addresses went!
AL
Aleshia
2 years ago
D) Users can reach each other and establish PTP traffic without passing an L3 point in the same VLAN
HE
Hester
2 years ago
A) Broadcasts for me two subnets win arrive on all ports in the same VLAN
MA
Mariko
2 years ago
D is just plain wrong. Traffic between the subnets would still need to pass through an L3 device, even within the same VLAN.
YU
Yuriko
2 years ago
C seems like the most correct answer. Adding a new subnet would result in a single SVI with multiple subinterfaces.
NA
Nada
2 years ago
So, users can still communicate with each other without needing to pass through a Layer 3 device, right?
CA
Catarina
2 years ago
Yeah, that makes sense. It would help manage the IP addresses more efficiently.
DE
Dell
2 years ago
I think C is the correct answer. It would create a single SVI with multiple subinterfaces.
MI
Mitsue
2 years ago
I'm not sure about B, as IGMP is used for multicast, and having multiple subnets in the same VLAN shouldn't affect that.
TE
Tesha
2 years ago
D) Users can reach each other and establish PTP traffic without passing an L3 point in the same VLAN
DE
Delsie
2 years ago
C) This would result in a single SVI using two subinterfaces.
LE
Leonor
2 years ago
A) Broadcasts for me two subnets win arrive on all ports in the same VLAN
AR
Arthur
2 years ago
I'm not sure about the technical details, but I think users will still be able to reach each other without passing an L3 point.
GI
Gianna
2 years ago
Option A seems logical, as adding a new subnet to the same VLAN would cause broadcasts to be forwarded to all ports in that VLAN.
FR
Frankie
2 years ago
Yeah, that makes sense. It would definitely help with the IP address shortage.
MA
Mabelle
2 years ago
I think option A is correct, broadcasts will go to all ports in the same VLAN.
GA
Gail
2 years ago
I disagree, I believe that adding another IP subnet will result in a single SVI using two subinterfaces.
MI
Minna
2 years ago
I think adding another IP subnet to the same VLAN will cause broadcasts to arrive on all ports in the same VLAN.