156-551 · Question #131
How does a Virtual Switch differ from a traditional switch?
The correct answer is C. It's configured within VSX and runs in the VSX Gateway. Virtual Switches in VSX provide internal Layer 2 connectivity between VSs and are software- based constructs running within the VSX Gateway, offering the same functionalities as physical
Question
How does a Virtual Switch differ from a traditional switch?
Options
- AIt lacks port mirroring
- BIt cannot filter VLANs
- CIt's configured within VSX and runs in the VSX Gateway
- DIt has no MAC address table
How the community answered
(51 responses)- A8% (4)
- B2% (1)
- C78% (40)
- D12% (6)
Explanation
Virtual Switches in VSX provide internal Layer 2 connectivity between VSs and are software- based constructs running within the VSX Gateway, offering the same functionalities as physical
Topics
Community Discussion
8The answer is C. A Virtual Switch in Check Point VSX is not a standalone device at all, it is a software object configured inside the VSX Gateway, which is what sets it apart from a traditional switch that operates as independent hardware with its own management plane. Options A and D describe limitations that do not apply, and B is simply wrong because Virtual Switches do participate in VLAN filtering.
Solid breakdown, though worth flagging that Virtual Switches do have their own forwarding table and can run STP per VLAN, so the "no independent management plane" point is the sharper distinction to lean on rather than lumping it with what they can't do.
A Virtual Switch is like a manager who only exists inside the company headquarters building rather than standing on the factory floor as a separate piece of hardware. C is right because the Virtual Switch lives inside VSX and operates as part of the VSX Gateway, so it is a logical construct provisioned through that framework rather than a standalone physical device you would rack and cable separately.
C is right, Virtual Switch lives inside VSX and acts as the gateway.
The gateway framing is solid, but worth spelling out that each Virtual Switch also owns its own MAC address table and forwarding domain, so it is less of a pure gateway and more of a full Layer 2 switching context inside the VSX chassis.
Got this one on my actual exam and almost talked myself into D because I kept thinking "well, virtual means no hardware, so maybe no MAC table?" but then I remembered our group session where we drilled VSX architecture and it clicked, the Virtual Switch lives inside VSX and runs on the VSX Gateway, that is what makes it different. Went with C and never looked back. Anyone else get tripped up by D on theirs?
B has to be right, Virtual Switches just forward everything without VLAN filtering capability.
Bao, actually C is the consensus the group landed on, because virtual switches like VMware's vSwitch do support VLAN filtering through port group configurations, so the premise that they forward everything without any VLAN awareness is not quite accurate. Does anyone want to add more detail on how the port group VLAN ID setting works here?