HPE7-A06 · Question #24
A customer has configured eBGP peering using local AS 65000 with two routers from a CX 6300 VSF stack to third-party routers with the following switch ports: [ports connecting to router - 1 10.10.10.2
The correct answer is A. interface lag1-2 udld udld mode aruba-os verify-then-forward C. router bgp 65000 address-family ipv4 unicast neighbor 10.10.10.2 fall-over bfd neighbor 10.10.20.2 fall-over bfd. UDLD on the LAG interface - UDLD (Unidirectional Link Detection) should be enabled on the LAGs to support bidirectional Layer-2 fault detection, ensuring that one-way failures are caught. BGP with fall-over bfd under address-family - Configuring BFD (Bidirectional Forwarding Dete
Question
A customer has configured eBGP peering using local AS 65000 with two routers from a CX 6300 VSF stack to third-party routers with the following switch ports:
[ports connecting to router – 1 10.10.10.2] [ports connecting to router – 2 ip 10.10.20.2] The LAGs are connected to L2 switches, which are used as a transit network for the eBGP routers. What needs to be enabled on the AOX-CX switch to support bidirectional layer-2 problem detection and faster converge times that the third-party router will support? A. B. C. D.
Exhibits
Options
- Ainterface lag1-2 udld udld mode aruba-os verify-then-forward
- Bint 1/1/1-1/1/2,2/1/1-2/1/2 udld udld mode aruba-os verify-then-forward
- Crouter bgp 65000 address-family ipv4 unicast neighbor 10.10.10.2 fall-over bfd neighbor 10.10.20.2 fall-over bfd
- Drouter bgp 65000 neighbor 10.10.10.2 fall-over bfd neighbor 10.10.20.2 fall-over bfd
How the community answered
(35 responses)- A71% (25)
- B9% (3)
- D20% (7)
Explanation
UDLD on the LAG interface - UDLD (Unidirectional Link Detection) should be enabled on the LAGs to support bidirectional Layer-2 fault detection, ensuring that one-way failures are caught. BGP with fall-over bfd under address-family - Configuring BFD (Bidirectional Forwarding Detection) with BGP peers provides sub-second detection of link failures, improving convergence
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