Exam 300-710 topic 1 question 46 discussion

Cisco is trying to throw us off here - correct answers are A and C. As pfunky states, we can have up to 8 routes, meaning that C is a "valid" answer. The reason E is incorrect is that we cannot configure NSF for BGPv4 - we can only configure graceful restart, which relies on info from NSF capable/aware devices. For OSPF however, we can configure a device to be fully NSF capable/aware. Read through this if you are still in doubt: https://www.cisco.com/c/en/us/td/docs/security/firepower/660/fdm/fptd-fdm-config-guide-660/fptd-fdm-ospf.html

A : https://www.cisco.com/c/en/us/td/docs/security/firepower/660/fdm/fptd-fdm-config-guide-660/fptd-fdm-bgp.html " BGP IPv4 is supported both on global and user-defined virtual routers. However, only BGP IPv6 configuration is supported on a global virtual router." Its about Cisco FTD devices and not Cisco FTDv appliance B : https://www.cisco.com/c/en/us/td/docs/security/secure-firewall/management-center/device-config/710/management-center-device-config-71/routing-ecmp.html " You can have up to 8 equal cost static or dynamic routes across up to 8 interfaces within each zone." I read this as 1 equal cost route per interface. So 3 equal cost paths means 3 interfaces, not 1. So B must be valid and not C.

Routing protocols

BGPv6 (A) is no doubt. So A is first answer. My confusion is this. B and C are saying up to 3. but all links that here mentioned up to 8 interfaces. "You can associate only 8 interfaces per ECMP zone." 3 is NOT same as 8? why B and C?

https://www.cisco.com/c/en/us/td/docs/security/firepower/601/configuration/guide/fpmc-config-guide-v601/fpmc-config-guide-v60_chapter_01100011.html#ID-2101-0000000e https://www.cisco.com/c/en/us/td/docs/security/firepower/710/fdm/fptd-fdm-config-guide-710/fptd-fdm-virtual-routers.html

Supported Routing Protocols: BGPv4: Cisco FTD supports BGPv4 for IPv4 routing, enabling it to exchange routes with other BGP-speaking devices and participate in dynamic routing environments. OSPFv2: FTD also supports OSPFv2, another interior gateway protocol (IGP) commonly used within a single autonomous system for IPv4 routing. Static routes: You can manually configure static routes to define specific paths for traffic to reach certain destinations. Key Routing Features: ECMP (Equal Cost Multi-Path): Allows for load balancing across up to three equal cost paths for improved performance and redundancy. However, it's important to note that ECMP is limited to multiple interfaces, not a single interface. NSR (Nonstop Forwarding) with BGPv4: Ensures continuous forwarding of traffic even during BGP process restarts or failovers, enhancing network resilience.

https://www.cisco.com/c/en/us/td/docs/security/secure-firewall/management-center/device-config/710/management-center-device-config-71/routing-ecmp.html "You can associate only 8 interfaces per ECMP zone."

https://www.cisco.com/c/en/us/td/docs/security/firepower/622/configuration/guide/fpmc-config-guide-v622/bgp_for_firepower_threat_defense.html#:~:text=BGP%20is%20supported%20only%20in%20routed%20mode. Guidelines for BGP Firewall Mode Guidelines Does not support transparent firewall mode. BGP is supported only in routed mode. FTD supports BGPv6 https://www.cisco.com/c/en/us/td/docs/security/firepower/70/configuration/guide/fpmc-config-guide-v70/bgp_for_firepower_threat_defense.html FTD ECMP https://www.cisco.com/c/en/us/td/docs/security/secure-firewall/management-center/device-config/710/management-center-device-config-71/routing-ecmp.html The FTD device supports Equal-Cost Multi-Path (ECMP) routing. You can configure traffic zones per virtual router to contain a group of interfaces. You can have up to 8 equal cost static or dynamic routes across up to 8 interfaces within each zone. For example, you can configure multiple default routes across three interfaces in the zone

so it means that A E are correct answers

Equal-Cost Multi-Path (ECMP) Routing - You can have up to 8 equal cost static or dynamic routes per interface

Why is not C an option to be considered ? I cannot find anything in the documentation related to BGP NSF , but I do about ECMP. Equal-Cost Multi-Path (ECMP) Routing The Firepower Threat Defense device supports Equal-Cost Multi-Path (ECMP) routing. You can have up to 8 equal cost static or dynamic routes per interface.

Agree: A and E.

A and E