Avaya DEFINITY SERIES - System Links

DEFINITY Enterprise Communication Server Release 9
Installation and Maintenance for Survivable Remote EPN
555-233-121
Issue 2
November 2000
SREPN Maintenance
2-43System links
2
System links
The state of a system link is dependent on the state of the various hardware
components that it travels over. The switch maintains a list of hardware
components over which the link travels, called the hardware path.
For each system link there is a current and a faulted hardware path as shown in
Table 2-14.
1. Focus attention on the
current hardware path for problems that do not
involve a link that is down.
2. If the link is down, focus on the
faulted hardware path .
3. If any alarms are present, follow the maintenance procedures for the
alarmed components to clear those alarms first.
Table 2-14. Hardware path data for link repair
Hardware
path
Link
status
Hardware path
data present?
Errors cleared at
recovery?
Current
Up Yes Yes
Down No Yes
Faulted
a
a. Path that the link traversed when it last went down.
Up Yes
Down Yes
b
b. The time at which the faulted path was last recorded is preserved and is
accessible through the status sys-link location, which shows the state of both
the hardware paths (current and faulted) and the state of each of the
components in that path, and the list sys-link commands.
No