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Cisco ONS 15454 SDH Procedure Guide, R7.0
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Chapter 20 DLPs D300 to D399
DLP- D363 Provision Regenerator-Section DCC Terminations
•
ESH—Sets the End System Hello (ESH) propagation frequency. End system NEs transmit
ESHs to inform other ESs and ISs about the NSAPs it serves. The default is 10 seconds. The
range is 10 to 1000 seconds.
•
ISH—Sets the Intermediate System Hello (ISH) protocol data unit (PDU) propagation
frequency. Intermediate system NEs send ISHs to other ESs and ISs to inform them about the
IS NETs it serves. The default is 10 seconds. The range is 10 to 1000 seconds.
•
IIH—Sets the Intermediate System to Intermediate System Hello (IIH) PDU propagation
frequency. The IS-IS Hello PDUs establish and maintain adjacencies between ISs. The default
is 3 seconds. The range is 1 to 600 seconds.
•
Metric—Sets the cost for sending packets on the LAN subnet. The IS-IS protocol uses the cost
to calculate the shortest routing path. The default metric cost for LAN subnets is 20. It normally
should not be changed.
c.
If the OSI and IP boxes are checked, continue with
. If only the OSI is checked, click
Next
and provision the following fields:
•
Mode—Choose one o the following:
AITS
—(Default) Acknowledged Information Transfer Service. Does not exchange data until a
logical connection between two LAP-D users is established. This service provides reliable data
transfer, flow control, and error control mechanisms.
UITS
—Unacknowledged Information Transfer Service. Transfers frames containing user data
with no acknowledgement. The service does not guarantee that the data presented by one user
will be delivered to another user, nor does it inform the user if the delivery attempt fails. It does
not provide any flow control or error control mechanisms.
•
Role—Sets the LAP-D frame command/response (C/R) value when Mode is set to AITS. Set to
the opposite of the mode of the NE at the other end of the RS-DCC.
•
MTU—Maximum transmission unit. Sets the maximum number of octets in a LAP-D
information frame. The range is 512 to 1500 octets. The default is 512. You normally should not
change it.
•
T200—Sets the time between Set Asynchronous Balanced Mode (SABME) frame
retransmissions. The default is 0.2 seconds. The range is 0.2 to 20 seconds.
•
T203—Provisions the maximum time between frame exchanges, that is, the trigger for
transmission of the LAP-D “keep-alive” Receive Ready (RR) frames. The default is 10 seconds.
The range is 4 to 120 seconds.
Step 9
Click
Finish
.
Note
DCC Termination Failure (EOC) and LOS alarms appear until you create all network DCC
terminations and put the DCC termination STM-N ports in service.
Step 10
Return to your originating procedure (NTP).
Содержание ONS 15454 SDH
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Страница 62: ...xxii Cisco ONS 15454 SDH Procedure Guide R7 0 78 17194 01 About this Guide ...
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Страница 414: ...16 4 Cisco ONS 15454 SDH Procedure Guide R7 0 78 17194 01 Chapter 16 Power Down the Node NTP D114 Power Down the Node ...
Страница 832: ...A 14 Cisco ONS 15454 SDH Procedure Guide R7 0 78 17194 01 Appendix A CTC Information and Shortcuts Equipment Inventory ...
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