When cabling a Cisco UCS 6200 Series Fabric Interconnect to disjoint Layer 2 networks, which
option must be considered?
A.
The fabric interconnect must be in switching mode.
B.
You must first configure a LAN pin group.
C.
Each VLAN is allowed across multiple disjoint uplinks.
D.
Each vNIC can communicate to a single disjoint network.
Upstream disjoint layer-2 networks (disjoint L2 networks) are required if you have two or more Ethernet “clouds” that never connect, but must be accessed by servers or virtual machines located in the same Cisco UCS domain.
The configuration for disjoint L2 networks works on a principle of selective exclusion. Traffic for a VLAN that is designated as part of a disjoint network can only travel along an uplink Ethernet port or port channel that is specifically assigned to that VLAN, and is selectively excluded from all other uplink ports and port channels. However, traffic for VLANs that are not specifically assigned to an uplink Ethernet port or port channel can still travel on all uplink ports or port channels, including those that carry traffic for the disjoint L2 networks.
Cisco UCS does not support overlapping VLANs in disjoint L2 networks. You must ensure that each VLAN only connects to one upstream disjoint L2 domain.
A vNIC can only communicate with one disjoint L2 network. If a server needs to communicate with multiple disjoint L2 networks, you must configure a vNIC for each of those networks.
To communicate with more than two disjoint L2 networks, a server must have a Cisco VIC adapter that supports more than two vNICs
So D it is
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