- Nortel Network Multiservice Platform User's Guide

Operation, administration, and maintenance (OAM) features 2-85
Planning and Ordering Guide—Part 1 of 2 NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Virtual concatenation
When the VCAT attribute in the WAN port is set to ENABLE, up to 7 STS3c
or 21 STS1 connections can be cross connected to a 2xGigE/FC-P2P WAN
port.
— STS-1-nv, n = 1 through 21 or,
— STS-3c-nv, n = 1 through 7
Engineering rules
The following engineering rules apply to the bandwidth management
capabilities of the 2xGigE/FC-P2P circuit packs:
• When the VCAT attribute of the WAN port 1 and port 2 is set to DISABLE,
if a STS1 granularity connection is made against one of these ports, the
only valid connection that can be made against the other WAN port is STS1
connections.
• When the VCAT attribute of the WAN port 1 and port 2 is set to DISABLE,
if an STS-nc (STS3c, STS12c or STS24c) connection is made against one
of these ports, the only valid connection that can be made against the other
WAN port is STS-nc connections.
• When the VCAT attribute of WAN port 1 and port 2 is set to ENABLE,
both ports must have the same RATE attribute.
Facility attributes
The 2xGigE/FC-P2P circuit pack supports Ethernet, FC and WAN facilities.
Ethernet facility
Table 2-13 on page 2-85, lists facility parameters supported by the
2xGigE/FC-P2P Ethernet port.
Table 2-13
2xGigE/FC-P2P Ethernet port facility signal attributes
Signal Attribute Definition Values
(See Note 1)
Access
(see Note 2)
AN
(Auto-Negotiation)
Auto-Negotiation Enable, Disable R/W
ANSTATUS
(Auto-Negotiation
Status)
Auto-Negotiation Status InProgess, Completed,
Disabled
R/O
ANETHDPX
(Negotiated Duplex
Operation)
Negotiated Duplex Operation, when AN is
enabled
Full R/O
ANSPEED
(Negotiated Speed)
Negotiated speed, when AN is enabled 1000 R/O