Which feature is supported by IRB on Cisco FTD devices?

The correct answer is A. redundant interface. Integrated Routing and Bridging (IRB) on Cisco FTD allows a Bridge Virtual Interface (BVI) to route traffic between bridge groups and routed interfaces. Within an IRB configuration, redundant interfaces (two physical interfaces logically combined for link redundancy) are…

Configuration

Question

Options

Aredundant interface
Bdynamic routing protocol
CEtherChannel interface
Dhigh-availability cluster

How the community answered

(39 responses)

A
72% (28)
B
8% (3)
C
5% (2)
D
15% (6)

Explanation

Integrated Routing and Bridging (IRB) on Cisco FTD allows a Bridge Virtual Interface (BVI) to route traffic between bridge groups and routed interfaces. Within an IRB configuration, redundant interfaces (two physical interfaces logically combined for link redundancy) are supported as members of a bridge group. However, IRB on FTD has several limitations: dynamic routing protocols (OSPF, BGP, EIGRP) cannot be run on BVI interfaces, EtherChannel interfaces cannot be used as bridge group members in IRB mode, and IRB is not supported in high-availability cluster configurations. Redundant interfaces are specifically listed as a supported IRB feature in Cisco documentation.

Topics

#FTD Interfaces#Integrated Routing and Bridging (IRB)#Redundant Interfaces#High Availability

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