Datasheet

6-3
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
Chapter 6 Storage Access Networking Cards
6.1.2 FC_MR-4 Port-Level Indicators
6.1.2 FC_MR-4 Port-Level Indicators
Each FC_MR-4 port has a corresponding ACT/LNK LED. The ACT/LNK LED is solid green if the port
is available to carry traffic, is provisioned as in-service, and is in the active mode. The ACT/LNK LED
is flashing green if the port is carrying traffic. The ACT/LNK LED is steady amber if the port is not
enabled and the link is connected, or if the port is enabled and the link is connected but there is an
SONET/SDH transport error. The ACT/LNK LED is not lit if there is no link.
You can find the status of the card ports using the LCD screen on the ONS 15454 SDH fan-tray assembly.
Use the LCD to view the status of any port or card slot; the screen displays the number and severity of
alarms for a given port or slot. Refer to the Cisco ONS 15454 SDH Troubleshooting Guide for a complete
description of the alarm messages.
6.1.3 FC_MR-4 Compatibility
The FC_MR-4 cards can be installed in Slots 1 to 6 and 12 to 17 when used with XC-VXL-2.5G,
XC-VXL-10G, and XC-VXC-10G cards. The FC_MR-4 card can be provisioned as part of any valid
ONS 15454 SONET/SDH network topology, such as subnetwork connection protection ring (SNCP)
(CCAT circuits only), multiplex section-shared protection ring (MS-SPRing), 1+1 subnetwork
connection (SNC), unprotected, and linear network topologies. The FC_MR-4 card is compatible with
Software Release 4.6 and greater.
6.2 FC_MR-4 Card Modes
The FC_MR-4 card can operate in two modes:
• Line rate mode. This mode is backward compatible with Software R4.6 line rate mode.
• Enhanced mode. This mode supports subrate, distance extension, differential delay, and other
enhancements.
The FC_MR-4 card reboots when changing card modes (a traffic hit results). The FPGA running on the
card upgrades to the required image. However, the FPGA image in the card’s flash is not modified.
6.2.1 Line-Rate Card Mode
The mapping for the line rate card mode is summarized here.
Table 6-1 FC_MR-4 Card-Level Indicators
Card-Level Indicators Description
Red FAIL LED
The red FAIL LED indicates that the card’s processor is not ready. Replace the
card if the red FAIL LED persists.
Green ACT LED
If the ACTV/STBY LED is green, the card is operational and ready to carry
traffic.
Amber ACT LED
If the ACTV/STBY LED is amber, the card is rebooting.