During routine O & M, an engineer finds that the Hold Time parameters of two devices are inconsistent. In this case, which of the following situations occurs?
A.
A peer relationship can be established, and the smaller Hold Time is selected after negotiation.
B.
A peer relationship can be established, and the larger Hold Time is selected after negotiation.
C.
No peer relationship can be established.
D.
A peer relationship can be established, and the devices use their own parameter values to send messages.
In BGP and other TCP-based protocols like OSPF and IS-IS, when devices have different Hold Times , the smaller value is chosen after negotiation. This ensures faster detection of communication loss.
The Keepalive and Hold Timers are negotiated during the establishment of a BGP session.
The smaller Hold Time is used to maintain symmetry and prevent timeouts.
Reference from Huawei HCIP-Datacom-Core Technology Study Guide:
“When negotiating Hold Time, both ends agree to use the smaller of the two values. This value is used to detect failures faster.”
Chosen Answer:
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