Service Interfaces; Statistical Alarms And Network Statistics - Cisco BPX 8620 Installation And Configuration Manual

Network Management
The following are the physical interfaces for the BXM-622 cards:
•
•
•
The BPX switch supports network interfaces up to 622 Mbps and provides the architecture to support
higher broadband network interfaces as the need arises.
Optional redundancy is on a one-to-one basis. The physical interface can operate either in a normal or
looped clock mode. As an option, the node synchronization can be obtained from the DS3 extracted
clock for any selected network trunk.

Service Interfaces

Service interfaces connect ATM customer equipment to the BPX switch. ATM User-to-Network
Interfaces (UNI) and ATM Network-to-Network Interfaces (NNI) terminate on the ATM Service
Interface (ASI) cards and on BXM T3/E3, OC-3, and OC-12 cards configured for the service interfaces
(UNI access mode).
The BXM T3/E3 card supports the standard T3/E3 interfaces.
The BXM-155 cards support SMF, SMFLR, and MMF physical interfaces.
The BXM-622 cards support SMF, SMFLR, and SMFXLR physical interfaces.
The SMFXLR physical interface supports 1550nm lasers.
Note
The BXM cards support cell relay connections that are compliant with both the physical layer and ATM
layer standards.
The MGX 8220 interfaces to a BNI or BXM card on the BPX, through a T3, E3, or OC-3 interface. The
MGX 8220 provides a concentrator for T1 or E1 Frame Relay and ATM connections to the BPX switch
with the ability to apply Optimized Bandwidth Management (ForeSight) across a connection from
end-to-end. The MGX 8220 also supports CES and FUNI (Frame-based UNI over ATM) connections.

Statistical Alarms and Network Statistics

The BPX Switch system manager can configure alarm thresholds for all statistical type error conditions.
Thresholds are configureable for conditions such as frame errors, out of frame, bipolar errors, dropped
cells, and cell header errors. When an alarm threshold is exceeded, the NMS screen displays an alarm
message.
Graphical displays of collected statistics information, a feature of the Cisco WAN Manager NMS, are a
useful tool for monitoring network usage. The following are the four general categories used for
collecting statistics:
•
•
•
•
Cisco BPX 8600 Series Installation and Configuration
1-28
SMF
SMFLR
SMFXLR
Supports 1550nm lasers
–
Node statistics
Network trunk statistics
Network Service, line statistics
Network Service, port statistics
Chapter 1 The BPX Switch: Functional Overview
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005