Q: 6
Refer to the exhibit.
Refer to the exhibit During a vPC peer switch reload, there is packet loss between the server and the router Which
action must be taken to prevent this behavior during future reloads?
Refer to the exhibit During a vPC peer switch reload, there is packet loss between the server and the router Which
action must be taken to prevent this behavior during future reloads?Options
Discussion
Option B since "packet loss" here isn’t limited to ARP. D is a trap for just ARP issues.
Nah, I don’t think it's D. B stops packet loss during reload since D only touches ARP issues.
Probably B here. Increasing the vPC delay restore timer prevents packet loss by holding the ports down until both switches are up. D would only help with ARP, not general traffic. Pretty sure that’s what Cisco recommends.
B that's the fix for general packet loss during vPC reloads. D is just ARP-specific. Agree?
D
B , increasing the vPC delay restore timer is what actually fixes packet loss in this scenario. D catches people off guard because it's only for ARP-specific stuff, not for general packet drops during reload. Let me know if there's a case where D could apply here, but pretty sure it's B.
C vs B for me. Lowering OSPF timers (C) helps with faster neighbor recovery but doesn't fix vPC-specific issues with traffic forwarding during switch reloads. I think upping the vPC delay restore timer (B) holds off traffic until everything is fully up, which is needed to avoid those drops. Not 100% sure, but leaning B based on vPC docs. Agree?
Yeah, pretty sure B is right. Increasing the vPC delay restore timer gives everything time to sync up before forwarding starts, helps avoid those packet drops when peer switches come back online. Not 100% but that's what I've seen in similar setups.
B not C. The trap is thinking it's an OSPF-only issue, but the question says packet loss in general during vPC reload. Raising the vPC delay restore timer helps keep ports down longer so downstream devices don't flap. I've seen similar exam questions focus on that.
I think C is a better option for this. If you decrease the OSPF hello and dead interval timers, the routers can detect peer failures faster and converge quicker, which should help reduce packet loss during reload events. Not totally sure though since vPC delay restore does get mentioned in docs, so let me know if you see it another way.
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