Which statement is correct about logical units on Juniper Router interfaces?

The correct answer is C. A logical unit is always required. Many router vendors refer to a logical unit as a subinterface; they do not require a subinterface on every physical interface, whereas a Juniper Networks router does. Note: All router interfaces that will send and receive transit traffic require a logical unit to be configured…

Junos OS Fundamentals

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Options

ALogical units are used only when a Layer 2 identifier is present such as a VLAN.
BA logical unit of 0 is required when using a frame-relay DLCI.
CA logical unit is always required.
DLogical units are not required unless ATM or 802.1Q VLAN tagging is configured.

How the community answered

(29 responses)

A
3% (1)
B
3% (1)
C
93% (27)

Explanation

Many router vendors refer to a logical unit as a subinterface; they do not require a subinterface on every physical interface, whereas a Juniper Networks router does. Note: All router interfaces that will send and receive transit traffic require a logical unit to be configured. This logical unit creates a division of the physical interface into multiple parts. enterpriserouting/9781449309633/ch04s03.html

Topics

#logical units#interface configuration#Junos OS

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