101 · Question #611
A BIG-IP Administrator needs to configure a network to separate traffic into three different VLANs using a single port on the BIG-IP device. What means should be used to allow this?
The correct answer is C. 0902 19 VLAN tagging. IEEE 802.1Q VLAN tagging allows multiple VLANs to traverse a single physical port by inserting a tag into Ethernet frames to identify VLAN membership.
Question
A BIG-IP Administrator needs to configure a network to separate traffic into three different VLANs using a single port on the BIG-IP device. What means should be used to allow this?
Options
- ALACP link aggregation
- BMultiple MAC registration Protocol
- C0902 19 VLAN tagging
- DPort Spanning
How the community answered
(27 responses)- B7% (2)
- C89% (24)
- D4% (1)
Why each option
IEEE 802.1Q VLAN tagging allows multiple VLANs to traverse a single physical port by inserting a tag into Ethernet frames to identify VLAN membership.
LACP (Link Aggregation Control Protocol) bundles multiple physical links into a single logical interface for increased bandwidth and redundancy, but does not provide VLAN separation on a single port.
Multiple MAC Registration Protocol (MMRP) is used in IEEE 802.1 bridged networks for registering MAC addresses across bridges, not for separating traffic into multiple VLANs on a single port.
802.1Q VLAN tagging is the IEEE standard that inserts a 4-byte tag into Ethernet frames to carry VLAN membership information across a single physical link. On BIG-IP, a tagged interface (trunk) allows one physical port to participate in multiple VLANs simultaneously, enabling traffic separation into three distinct VLANs without requiring additional physical ports.
Port spanning (port mirroring) copies traffic from one port to another for monitoring purposes and does not enable VLAN separation on a single physical port.
Concept tested: 802.1Q VLAN tagging on BIG-IP single-port VLAN separation
Source: https://techdocs.f5.com/en-us/bigip-15-1-0/big-ip-tmos-routing-administration/vlans-vlan-groups-and-vxlan.html
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