Nortel Networks OPTera Metro 3500 - Manual (Page 96)

2-58 Operation, administration, and maintenance (OAM) features
OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004
Figure 2-32
2x100BT-P2P loopback conditioning
Network surveillance
Extended network processor (NPx)
The NPx supports TCP/IP, X.25, and a seven-layer OSI stack. The NPx
communicates with Site Manager and the Multiservice Managed Object Agent
(MOA) over TCP/IP. It supports TL1 communication over X.25 with other
operations support systems (OSS). The NPx communicates with the
co-located extended shelf processor (SPx) through the backplane over
Ethernet. The NPx also allows up to 16 nodes with network processors or
ILAN cards to be daisy-chained through the intershelf local area network
(ILAN).
The NPx supports three user accounts with a level 5 UPC for network
surveillance purposes. Each level 5 user has visibility to NPx’s span of control
of up to 16 network elements. Logging in to the NPx using a user account with
a level 5 UPC from a local connection, you can retrieve alarms and events from
all network elements in the network processor span of control. The NPx can
have up to 16 network elements in its span of control.
The NPx supports file transfer to and from Preside and Multiservice MOA for
electronic software delivery, and to and from a PC to install files on the system.
The NPx also allows other network processors or shelf processors to retrieve
new software loads for upgrade purposes.
Terminal Loopback
Facility Loopback
LAN Side
LAN Side
WAN Side
WAN Side
SONET Path UNEQ
No Link Pulse
X
X
STS1/STS3c