Nortel Networks NTRN10AN, 3500 manual Wan Gfp

2-90Operation, administration, and maintenance (OAM) features

Table 2-15 (continued)

2xGigE/FC-P2P WAN port signal attributes

Signal Attribute	Definition	Values	Access
		(See Note 1)	(see Note 2)
LCAS	Link Capacity Adjustment Scheme	Disable	R/O
(Link Capacity	(applicable to virtual concatenation only).
Adjustment Scheme)
SCRAMBLE	Enables X^43 +1 scrambler.	Enable	R/O
(Scramble)
NCP	Indicates the Network Control Protocol	None	R/O
(Network control	used.
protocol)
LANFCS	Indicates whether the LAN FCS is	Enable	R/O
(Encapsulated	included in the encapsulated frame (for	(See Note 3)
frame)	both the ingress and egress direction).
(See Note 6)	ENABLE indicates the LAN FCS is
	included.
RTDELAY	Round trip delay (in microseconds). Only	0..220000, Unknown	R/O
(Round trip delay)	available when mapping is GFP-F or
	GFP-T.

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.

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.

OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004