Cisco ONS 15310-MA SDH Procedure Manual page 503

Chapter 18 DLPs H200 to H299
Note
TARP Data Cache—If checked (default), the node maintains a TARP data cache (TDC). The TDC
•
is a database of TID to NSAP pairs created from TARP Type 3 PDUs received by the node and
modified by TARP Type 4 PDUs (TID to NSAP updates or corrections). TARP 3 PDUs are
responses to Type 1 and Type 2 PDUs. The TDC can also be populated with static entries entered
on the TARP > Static TDC tab.
Note
LDB—If checked (default), enables the TARP loop detection buffer. The LDB prevents TARP PDUs
•
from being sent more than once on the same subnet.
Note
LAN TARP Storm Suppression—If checked (default), enables TARP storm suppression. This
•
function prevents redundant TARP PDUs from being unnecessarily propagated across the LAN
network.
• Send Type 4 PDU on Startup—If checked, a TARP Type 4 PDU is originated during the initial
ONS 15310 startup. Type 4 PDUs indicate that a TID or NSAP change has occurred at the NE. (The
default setting is not enabled.)
Type 4 PDU Delay—Sets the amount of time that will pass before the Type 4 PDU is generated when
•
Send Type 4 PDU on Startup is enabled. 60 seconds is the default. The range is 0 to 255 seconds.
Note
LDB Entry—Sets the TARP loop detection buffer timer. The LDB buffer time is assigned to each
•
LDB entry for which the TARP sequence number (tar-seq) is zero. The default is 5 minutes. The
range is 1 to 10 minutes.
LDB Flush—Sets the frequency period for flushing the LDB. The default is 5 minutes. The range is
•
0 to 1440 minutes.
T1—Sets the amount of time to wait for a response to a Type 1 PDU. Type 1 PDUs seek a specific
•
NE TID within an OSI Level 1 area. The default is 15 seconds. The range is 0 to 3600 seconds.
• T2—Sets the amount of time to wait for a response to a Type 2 PDU. TARP Type 2 PDUs seek a
specific NE TID value within OSI Level 1 and Level 2 areas. The default is 25 seconds. The range
is 0 to 3600 seconds.
T3—Sets the amount of time to wait for an address resolution request. The default is 40 seconds.
•
The range is 0 to 3600 seconds.
T4—Sets the amount of time to wait for an error recovery. This timer begins after the T2 timer
•
expires without finding the requested NE TID. The default is 20 seconds. The range is
0 to 3600 seconds.
78-19416-01
TARP Echo is not supported.
This parameter is only used when the TARP PDUs Origination parameter is enabled.
The LDP parameter is not used if the Node Routing Mode is provisioned to End System or
if the TARP PDUs L1 Propagation parameter is not enabled.
The Send Type 4 PDU on Startup and Type 4 PDU Delay parameters are not used if TARP
PDUs Origination is not enabled.
Cisco ONS 15310-MA SDH Procedure Guide, Release 9.1 and Release 9.2
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