SDH Nokia, :
- 2M 2 / 16 2 / (), 2 ( 2 2);
-2 2 / 16 2 / ();
-STM-1 155 /;
-STM-1 155 /;
-STM-4 622 /;
-SSW - - DXC-4/4/1 16AU-4 VC-4, VC-12;
-TSW1 - AU-12 AU-4 ;
-CU ;
-SPIU ();
-SU .
:
STM-1:
:
- 2 16 1;
- STM-1;
- SSW;
- CU;
- SPIU;
- SU.
STM-4:
:
- 2 16 1;
- STM-4;
- STM-4;
- SW-1;
- CU;
- SPIU;
- SU.
NGSDH
NG SDH , . NG SDH , , Ethernet, , , .. .
SDH NG, 3 :
1) GFP(GENERALFRAMINGPROCEDURE), - SDH : ITU-T-J.704.1
2) (VCAT) VC-12, VC3, VC4 ITU-T- J 707, ITU-T- J 783
3) (LCAS) ITU-T-J 704.2
GFP NGSDH
GFP 10/100/1000/10000 / Ethernet, IP, PPP .GFP - SDH, , SDH. , .
|
|
|
GFP
| PLI | cHEC | Payload Type | Payload | FCS |
GFPHeader
-
GFPHeader, PLI cHEC
- (PayloadHeader)
- (PayloadArea)
- FCS
:
-GFP-F( OSI) GFP-; Layer 2; (Ethernet, IP); ; ; .
E/FE/GE, IP, PPP
-GFP-T( ) GFP-; Layer 2; GFP ; ; ;
: GE,DVB-ISE
GFP:
1.
2. GFP 10 / 10 /
3. , SDH IEEE 802.17 RPR IETF
4. GFP , , - .
5. QoS GFP-F GFP-T( )
