An engineer must build redundancy into the network and traffic must continuously flow if a redundant switch in front of the firewall goes down. What must be configured to accomplish this task?
A.
redundant interfaces on the firewall cluster mode and switches
B.
redundant interfaces on the firewall noncluster mode and switches
C.
vPC on the switches to the interface mode on the firewall cluster
D.
vPC on the switches to the span EtherChannel on the firewall cluster
The answer is correct:
Virtual Port Channels (vPC) are common EtherChannel
deployments, especially in the data center, and allow
multiple devices to share multiple interfaces
EtherChannel Interface requires stack, VSS or vPC when connected to multiple switches
Option A, which involves creating redundant interfaces on the firewall in cluster mode and on the switches, does provide redundancy. However, it is not as specific and comprehensive as option D for ensuring continuous traffic flow in the context of the problem described.
Using Virtual Port Channel (vPC) on the switches to the span EtherChannel on the firewall cluster (option D) is specifically designed to provide both redundancy and load balancing. This method ensures that links from both switches are seen as a single port channel by the firewall cluster, allowing for seamless failover and continuous traffic flow even if one switch fails.
So while option A addresses redundancy, it does not explicitly mention the configuration techniques (vPC and Spanned EtherChannel) that are best suited to achieve the desired outcome of uninterrupted traffic flow
Correct answer is (D), since EtherChannel with vPC utilize all for this connection dedicated firewall interfaces simultaniously. Redundant interface configurations are getting out-dated in present times due to the disadvantage of only utilizing one instead of 2 interfaces that belong to the SLA monitor setup.
When you place the cluster in your network, the upstream and downstream routers need to be able to load-balance the data coming to and from the cluster using Spanned EtherChannels. Interfaces on multiple members of the cluster are grouped into a single EtherChannel; the EtherChannel performs load balancing between units.
I am with you. Answer A. first vPC - this can be done by VSS, Virtual StackWise, etc.... any clustering techniques can be used. For me, A is more general cover
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