Specifications

Cisco ONS 15454 Product Overview
Card Slots and Types
4
Cisco ONS 15454 Product Overview, R3.3
May 2002
• IP address detection and resolution
• Timing
• SONET data communications channel (DCC) termination
• System fault detection
The CRIT, MAJ, MIN, and REM alarm LEDs on the TCC+ faceplate indicate
whether a Critical, Major, Minor, or Remote alarm is present anywhere on the
ONS 15454 or on a remote node in the network.
In-Service Software Upgrade
The node name, configuration database, IP address, and system software (CTC)
are stored in the TCC+ card’s non-volatile memory, which allows quick recovery
if power or card failures occur. You can upgrade system software without
affecting traffic on the ONS 15454 if dual TCC+ cards are used. The upgrade
takes place first on the standby TCC+ card. The system verifies that the upgrade
is successful and switches from the active TCC+ card running the older release to
the upgraded standby TCC+ card running the newer release. After the switch, the
second TCC+ card undergoes the upgrade. The TCC+ then loads new software to
each of the installed line (traffic) cards.
Database Revert
The increased memory of the TCC+ allows it to store and revert to the previous
configuration database. After a software upgrade, the TCC+ copies the current
working database and saves it in a reserved location in the TCC+ flash memory. If you
later need to revert to the original working software load, the saved database will
activate automatically when you initiate the revert process. There is no need to restore
the database manually.
XC, XCVT, and XC10G Cards
The cross-connect card is the central switching element in the ONS 15454. The
ONS 15454 offers three cross-connect cards: the XC, XCVT, and XC10G. You
provision cross-connect (circuit) information using CTC or TL1; the TCC+ then
establishes the proper internal cross-connect information and relays the setup
information to the cross-connect card.