Marconi OMS 1200
Technical Product Description
221 02-ZAP 701 25/1 Rev C 2006-08-04
© Ericsson AB 2006
03PHB00004AAV-CUA
Commercial in confidence
106
(136)
2
TSNCP States - Remotely Initiated Only.
•
No Request - Traffic on Worker
•
No Request - Traffic on Protection
•
WTR/Manual Switch to Protection - Traffic on Protection
•
WTR/Manual switch to Worker - Traffic on Worker
•
Signal Fail/Signal Degrade on Worker - Traffic on Protection
•
Forced Switch to Protection - Traffic on Protection
•
Signal Fail/Signal Degrade on Protection - Traffic on Worker
•
Forced Switch to Worker - Traffic on Worker.
7.7
Traffic Core Card Protection
7.7.1
Introduction to Traffic Core Card Protection
Core card protection provides equipment level protection for the core switch. The
scheme is an equipment level protection scheme, which provides a means of fast,
autonomous recovery from card failures.
Given that the core cards support the SDH line interface modules, failure/removal of a
core card will also mean that line interfaces become unavailable. Protecting
failure/removal of line interfaces can only be achieved by independently setting up
linear MSP protection on pairs of line interfaces, across A and B Core Cards.
Alternatively (or inclusively), path layer SNCP protection of traffic would be set up
using pairs of SDH line interface bearers across A and B Core Cards.
In summary, configuring core card/core tributary protection, linear MSP and/or path
layer SNCP may be necessary to achieve full equipment level protection of the multi-
function core card, its SDH line interface modules and its dependant core tributary
card.
Note:
Linear MSP, SNCP, 1:1 generic trib card protection, and PDH trib port
protection schemes all operate independently of the core card protection
scheme.
Note:
MS-SPRING is also available with the STM-4/16 core units to protect the line
interfaces.
An SMA may be operated with or without core unit protection.
For unprotected operation, only a single core unit is necessary. The position of the
Core card depends on what subrack you are using and what naming convention that
you are using:
•
In OMS 1240 Core A goes in physical slot S1-04 or logical LCT slot 1-9
•
In OMS 1260 Core A goes in physical slot S1-07 or logical LCT slot 1-26
