Avaya S8700 Maintenance Manual page 175

Isolating and Repairing Packet-Bus Faults
From
A
page
1
G
Is a
TN771 present
in this port
network?
NO
I
Place the TN771
in standalone mode
J
Does the
TN771 indicate
packet bus
faults?
YES
M
Follow the packet
bus fault isolation and
correction procedures
Are the
packet bus
problems
resolved?
YES
END
Figure 4-46. Troubleshooting Packet-Bus Problems (Page 2 of 2)
Bold-face letters in the flowchart refer to paragraphs in the explanatory section
that follows.
555-233-143
H
Are there
YES
alarms or errors
against
M/T-PKT?
NO
K
Is the
NO
problem isolated
to a single
board?
NO
Escalate
NO
the
problem
Follow the repair
YES
procedure for
M/T-PKT
Are the
packet bus
NO
problems
resolved?
L
Follow the board,
YES
port and/or endpoint
repair procedures
Are the
NO
packet bus
problems
resolved?
fcdfpbp2 RPY 101397
Issue 1 May 2002
YES
END
YES
END
4-101