Nortel Networks OPTera Metro 3500 - Manual (Page 128)

2-90 Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Ethernet Operational Measurements
The Ethernet Operational Measurements collected by the 2xGigE/FC-P2P
circuit packs can be divided into two groups:
• Generic Interface Operational Measurements (based on the Interfaces
Group MIB, RFC 1213, RFC 2233, RFC 2863).
— Applies to all types of interfaces:
– LAN (Ethernet, Fibre Channel)
– WAN (GFP)
• Ethernet Specific Operational Measurements (based on RFC 2665
Ethernet-Like MIB).
— Applies to Ethernet interfaces only.
LCAS
(Link Capacity
Adjustment Scheme) Link Capacity Adjustment Scheme
(applicable to virtual concatenation only). Disable R/O
SCRAMBLE
(Scramble) Enables X^43 +1 scrambler. Enable R/O
NCP
(Network control
protocol) Indicates the Network Control Protocol
used. None R/O
LANFCS
(Encapsulated
frame)
(See Note
6 )
Indicates whether the LAN FCS is
included in the encapsulated frame (for
both the ingress and egress direction).
ENABLE indicates the LAN FCS is
included. Enable
(See Note
3 )
R/O
RTDELAY
(Round trip delay) Round trip delay (in microseconds). Only
available when mapping is GFP-F or
GFP-T. 0..220000, Unknown R/O
Note 1: Values in bold indicate defaults.
Note 2: R/O = Read Only, R/W = Read & Write (provisionable).
Note 3: For MAPPING=GFP-F or GFP-T, only possible value is ENABLE.
Note 4: For MAPPING=GFP-F possible values are 0 or 32. For MAPPING=GFP-T, only possible value is 0.
Note 5: If another WAN port is already created, the VCAT attribute defaults to the value of the existing WAN port.
Note 6: You must edit the mapping protocol, frame check sum size, magic number and link connectivity monitor
attributes at the same time. The system rejects any invalid combination of values for these attributes.
Table 2-15 (continued)
2xGigE/FC-P2P WAN port signal attributes
Signal Attribute Definition Values
(See Note
1 )
Access
(see Note
2 )