FAQ-What Do the TTL Values 255, 254, and 253 Mean in a BFD Session

Publication Date:  2015-05-06 Views:  991 Downloads:  0
Issue Description
What Do the TTL Values 255, 254, and 253 Mean in a BFD Session?
Solution
The TTL values 255, 254, and 253 indicate that the lifetime of a BFD packet is 255, 254, and 253 respectively.

From V200R001C01, you can configure a global TTL for a BFD session.

By default, the lifetime of a static single-hop or dynamic single-hop BFD packet is 255, the lifetime of a static multi-hop BFD packet is 254, and the lifetime of a dynamic multi-hop BFD packet is 253.

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