Sonet - Vt Path Overhead - EXFO FTB-8510B Guia Del Usuario

Glossary

SONET - VT Path Overhead

SONET - VT Path Overhead
V5: VT Path overhead
The V5 byte provides the same functions for VT paths that the B3, C2, and
G1 bytes provide for STS paths.
Note: If the signal label in V5 (bits 5, 6, and 7) is 101 the contents of the extended
signal label is valid and contains in a 32 bit frame multiframe as shown
below. See Z7 Structure shown below.
Z7 Structure
J2: VT Path Trace
The J2 Trace byte provides a 16 byte fixed string allowing the receiving
VT PTE to verify its continued connection to the intended transmitting
VT PTE.
Z6: VT Path Growth
The Z6 byte is allocated for future growth.
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