Hello Time Age (2 bytes) (BPDU)

Protocol: BPDU (Spanning Tree) BPDU PCI

Field: hello time

Length: 2 bytes

Contents: interval of BPDU messages.

Indicates the intervall of hello frames sent by the root bridge to all other bridges.

This field contains the time, in 1/256ths of a second, between generation of configuration messages by the root bridge.