•
Use to define messages that the router sends to or expects to receive from a
SONET/SDH device connected to one of its SONET interfaces.
•
Do not specify a path identifier for unchannelized SONET interfaces.
•
Specify the keyword
msg
for a message that the router transmits for this path.
•
Specify the keyword
exp-msg
to define a message that the router expects to receive
on this path.
•
Define a message of up to 62 characters for SONET or up to 15 characters for SDH.
•
Configure the remote device to send the same message that the router expects to
receive on this path. You can then compare the expected and received messages in
the display of the
show controllers sonet
command.
•
Example for unchannelized SONET interfaces:
host1(config-controller)#
path overhead j1 msg hello
•
Use the
no
version to restore the default situation, in which all the characters in the
transmitted or expected message are zeros.
•
See path overhead j1.
Monitoring SONET/SDH Interfaces
You can monitor interface statistics and APS/MSP settings.
NOTE:
The E120 and E320 routers output for
monitor
and
show
commands is identical
to output from other E Series routers, except that the E120 and E320 routers output
also includes information about the adapter identifier in the interface specifier
(slot/adapter/port).
Monitoring Interface Statistics
You can set statistics baselines for the section, line, and path layers using the
baseline
interface sonet
commands.
To display statistics for SONET and SDH interfaces, use the
show controllers sonet
commands. Use the delta options to display statistics with the baseline subtracted.
baseline line interface sonet
•
Use to set a statistics baseline for the SONET/SDH line layer.
•
The router implements the baseline by reading and storing the MIB statistics at the
time the baseline is set and then subtracting this baseline whenever baseline-relative
statistics are retrieved.
•
Use the
total
[
delta
] keywords with the
show controllers sonet line
command to
view the baseline statistics.
•
Example 1—Sets a baseline for SONET line layer interfaces on ERX14xx models, ERX7xx
models, or the ERX310 router
Copyright © 2010, Juniper Networks, Inc.
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