4A0-D03: Nokia SR Linux EVPN and Data Center InterconnectDemo

By Nokia · Question Mode

QuestionQ30

L3 EVPN

Which of these statements about an integrated routing and bridging (IRB) interface is FALSE?

  • A An IRB interface is used to logically interconnect a MAC-VRF to an IP-VRF on a PE.
  • B IP-VRFs and MAC-VRFs can have multiple IRB interfaces.
  • C The IRB sub-interface must have at least one IP address.
  • D The IRB sub-interfaces can be configured with access control lists.
Explanation

An IP-VRF can have multiple IRB subinterfaces, whereas a MAC-VRF can reference only one IRB subinterface. IRB interfaces associate MAC-VRF and IP-VRF instances, support IPv4 and IPv6 ACLs, and need at least one IPv4 or IPv6 address for the IRB subinterface to be operationally up.

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