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1.1 Product Overview
1-41
No.
Item
Specifications
•
At LEX, Alarm and Error are added as follows:
PPP: Aborted Frame, PPP Size or FCS Error
Ethernet/IP: Ethernet Size or FCS Error, IPv4
Header Checksum Error, TCP
Checksum Error, UDP Checksum
Error
•
At LAPS(X.86), Alarm and Error are added as follows:
PPP: Aborted Frame, LAPS FCS Error
Ethernet/IP: Ethernet Size or FCS Error, IPv4
Header Checksum Error, TCP
Checksum Error, UDP Checksum
•
At Bulk, Alarm and Error are added as follows:
Pattern Sync. Loss, Bit Info.
3.2.14
Encapsulation
Frame-mapped GFP, LAPS (X.86), LEX (Option06)
PPP, Cisco HDLC, MAPOS Virsion1, MAPOS 16 (Op-
tion07)
3.2.14.1
PPP/ Cisco HDLC/
MAPOS Virsion1/
MAPOS 16
Setting
(Option07)
Scramble: On/Off
Descramble: On/Off
Minimum Flag Length 1 byte/2 bytes
FCS: 16 bits/32 bits
Negotiation (PPP only, MRU is always valid)
On/Off, Restart, Retry, Abort,
Max-Receive-Unit (MRU: default 65535),
Magic-number (random),
IPCP (Send this port IP address)
Retry (1 to 10), Time out (1 to 180)
Frame
Address
Control
Protocol
Data field
Padding
FCS
Flag
Inter-frames fill or next address
Address: FFh (User-defined) Cisco HDLC: 0fh
MAPOS Ver1: 03h
Control: 03h (User-defined) Cisco HDLC: 00h
MAPOS Ver1: 03h
Address MAPOS16:0003h
Note:
Address field is 16 bits and Control field is 0 bit
when the frame is MAPOS16.
Содержание MU150101A
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