An engineer is setting up a new Cisco Secure Firewall Threat Defense appliance to replace the current firewall. The company requests that inline sets be used and that when one interface in an inline…

The correct answer is A. propagate link state. In Cisco Secure Firewall Threat Defense deployments, propagate link state is a feature designed to manage interface behavior in inline sets. When inline sets are used, the network often requires that both interfaces in the set behave consistently; if one interface in the pair…

Deployment

Question

An engineer is setting up a new Cisco Secure Firewall Threat Defense appliance to replace the current firewall. The company requests that inline sets be used and that when one interface in an inline set goes down, the second interface in the inline set goes down. What must the engineer configure to meet the deployment requirements?

Options

Apropagate link state
BSnort fail open
Cinline tap mode
Dstrict TCP enforcement

How the community answered

(48 responses)

A
71% (34)
B
8% (4)
C
4% (2)
D
17% (8)

Explanation

In Cisco Secure Firewall Threat Defense deployments, propagate link state is a feature designed to manage interface behavior in inline sets. When inline sets are used, the network often requires that both interfaces in the set behave consistently; if one interface in the pair goes down, the other should automatically go down to prevent asymmetric routing or network issues. The Propagate Link State setting ensures that when one interface in an inline set experiences a failure, the paired interface automatically reflects that down status. This is critical in setups where symmetry and failover are essential, especially in high-availability or redundant network designs.

Topics

#Cisco FTD#Inline Sets#Propagate Link State#High Availability

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