Question 300
The HPE AOS-CX switching case is: A maintenance team shuts the primary distribution uplink without testing whether the secondary peer forwards via the gateway. Select TWO: a corrective switching action and separate evidence that the correction worked. (Select TWO.)
Explanation
Correct Answers
The targeted correction for A maintenance team shuts the primary distribution uplink without testing whether the secondary peer forwards via the gateway is: Configure consistent active-gateway addresses and VMACs across supported VSX peers and confirm ISL and keepalive health. It reduces the risk that inconsistent virtual gateways or failed peer topology can cause duplicate-gateway confusion and asymmetric forwarding.
A separate operational validation for A maintenance team shuts the primary distribution uplink without testing whether the secondary peer forwards via the gateway is: Host failover tests preserve gateway reachability when either designated VSX peer uplink is removed. It proves intended behavior instead of accepting configuration presence alone.
Incorrect Answers
This alternative concerns static route preference and default path; its associated risk is: A default route pointing to an unreachable gateway or unintended VRF can blackhole otherwise correctly switched traffic. The observed case A maintenance team shuts the primary distribution uplink without testing whether the secondary peer forwards via the gateway requires the more specific vsx active gateway and distributed forwarding control. The targeted action is: Configure consistent active-gateway addresses and VMACs across supported VSX peers and confirm ISL and keepalive health.
This alternative concerns vrf segmentation and route leaking control; its associated risk is: Treating VRFs as one shared table can leak restricted networks or leave permitted traffic with no route. The observed case A maintenance team shuts the primary distribution uplink without testing whether the secondary peer forwards via the gateway requires the more specific vsx active gateway and distributed forwarding control. The targeted action is: Configure consistent active-gateway addresses and VMACs across supported VSX peers and confirm ISL and keepalive health.
This alternative concerns ospf area and neighbor formation; its associated risk is: An OSPF neighbor mismatch can leave a physical link working while required prefixes never populate the routing table. The observed case A maintenance team shuts the primary distribution uplink without testing whether the secondary peer forwards via the gateway requires the more specific vsx active gateway and distributed forwarding control. The targeted action is: Configure consistent active-gateway addresses and VMACs across supported VSX peers and confirm ISL and keepalive health.