SONET Tabs
SONET/SDH Application
201
Path Signal Label (C2)
³
H4
: Multiframe Indicator.This byte is not programmable with LOP or
VCAT.
³
Z3
and
Z4
: Growth
³
N1
: Tandem Connection Monitoring
Path Signal Label (C2)
The C2 byte is allocated to indicate the content of the STS SPE, including
the status of the mapped payloads.
Note:
Selecting the C2 byte from the list will automatically update the C2 byte
from the Path Overhead section and vice versa.
C2
(Hex.)
Description
C2
(Hex.)
Description
00*
Unequipped
16
Mapping of HDLC over SONET
01
Equipped - Non-Specific
17
SDL with self-synchronization scrambler
02
Floating VT Mode
18
Mapping of HDLC/LAPS
03
Locked VT Mode
19
SDL with use of a set-reset scrambler
04
Asynchronous Mapping for DS3 1A
10 Gbps Ethernet (IEEE 802.3)
05
Mapping under development
1B
GFP
12
Asynchronous Mapping for
140M (DS4NA)
CF
Reserved (Obsolete HDLC/PPP framed)
13
Mapping for ATM
E1
a
to
FC
a
a.
These values cannot be selected as Expected Path Signal Label.
STS-1 w/1 VTx Payload Defects, STS-1
w/2 VTx Payload Defects, ... STS-1 w/28
VTx or STS-n/nc with Payload Defects
14
Mapping for DQDB
FE
Test Signal, ITU-T 0.181 specific mapping
15
Asynchronous Mapping for FDDI FF
a
STS SPE AIS (TCM)
Содержание FTB-8100 Series
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