Specifications

4-6
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001
Chapter 4 BNI (Trunk) Cards
Broadband Network Interface Cards (BNI-T3 and BNI-E3)
• AdigitalloopbackcapabilityontheBNI-3T3tothePLPPprocessor
This is used for the internal self test to basically check the operation of the signal processor.
When a trunk has been assigned to a BNI card but is not yet activated (upped), it is put in a loopback
mode and a diagnostic test is continuously performed. This loopback is disruptive so it cannot be
performed on a card that has an active trunk. This diagnostic test checks the data path through the BNI
outtotheBCC,throughtheswitchmatrix,andbacktotheBNI.
Active trunks are constantly checked by the Communications Fail test routine which is part of system
software.
Front Panel Indicators
The lower section of the BNI front panel (see Figure 4-3) has a three-section, multicolored LED to
indicate the card status. The card status LED is color-coded as indicated in Table 4-1.
At the upper portion of the front panel, there is a three-section multicolored LED to indicate the status
of the three ports on the BNI. Types of failures are indicated by various combinations of the card status
indicators as indicated in Table 4-2.
Table 4-1 BNI Front Panel Status Indicators
Status LED color Status Description
Port off Trunk is inactive and not carrying data.
green Trunk is actively carrying data.
yellow Trunk is in remote alarm.
red Trunk is in local alarm.
Card green (act) Card is on-line and one or more trunks on the card have been upped. If
off, card may be operational but is not carrying traffic.
yellow (stby) The card is offline and in standby mode (for redundant card pairs). It
might not have any upped trunks. If blinking, indicates card firmware
or configuration data is being updated.
red (fail) Card failure; the card has failed self-test and/or is in a reset mode.