Home » Cisco » 350-080 » Which statement about the Adapter FEX feature on the Cisco Nexus 5000 Series Switches is true?
Which statement about the Adapter FEX feature on the Cisco Nexus 5000 Series Switches is true?
A. Adapter FEX is a software feature that can be configured on any CNA as long as the Nexus 5000 is running a version of code that supports Adapter FEX.
B. Adapter FEX can be thought of as a way to divide a single physical link into multiple virtual links or channels.
C. Packets on each channel are tagged with an 801.Q header that has a specific source VIF.
D. When using a dual-homed NIC on the server, active/standby is not supported. Only active/active is supported.
Correct Answer: B
Explanation/Reference:
Explanation:
Adapter-FEX can be thought of as a way to divide a single physical link into multiple virtual links or channels. Each channel is identified by a unique channel number and its scope is limited to the physical link.
The physical link connects a port on a server network adapter with an Ethernet port on the switch. This allows the channel to connect a vNIC on the server with a Vethernet interface on the switch.
Packets on each channel are tagged with a VNTag that has a specific source virtual interface identifier (VIF). The VIF allows the receiver to identify the channel that the source used to transmit the packet.
Reference: http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5500/sw/adapter-fex/6x/b_5500_Adapter_FEX_Config_6x/ b_5500_Adapter_FEX_Config_602N11_chapter_01.html#concept_C9C92B1136EB40529664852E2605840B
