Novell EDIRECTORY 8.8 SP3, Administration Manual, Page: 556 / 634

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18.4.4 Enabling Advanced Referral Costing
Š
DSTrace
Use DSTrace command to enable ARC on NetWare.
Š NDSTrace
Use NDSTrace command to enable ARC on all UNIX platforms.
Table 18-1
Enabling ARC on UNIX Platforms
NOTE: Currently, ARC is not supported on the Windows platform. However, if you you want ARC
on the Windows, please contact your Novell Support Provider (http://www.novell.com/
documentation/nwec/nwec_enu/nwec_novell_support_provider.html)
18.4.5 Tuning Advanced Referral Costing
ARC requires no tuning by default. However, there are tunable parameters in ARC that can be used
to change how ARC functions, or to disable or enable certain features. There are 3 major
components to ARC.
Advanced Costing
When asked to cost a given address, ARC uses the information known about the connection to
calculate the cost of the given referral. If ARC is on, Advanced Costing is always used when
costing a referral.
Background Monitoring
A background thread periodically checks the timer information to ensure that it is current. When a
server is slow, its cost rises and there is a good chance that communication will cease. The
background thread periodically (once a minute by default) checks to see if a server in the table has
not been updated. If the server is has not been updated in the last three minutes, the server makes a
resolve name request on its behalf to check the server's health. This creates current costing for the
set NDSTRACE =!ARC
Displays the gv_ResolveTimesTable for debugging.
set NDSTRACE =!ARC0
Disables Advanced Referral Costing.
set NDSTRACE =!ARC1
Enables Advanced Referral Costing.
set NDSTRACE =!ARC2
Enables Advanced Referral Costing in debug mode and displays the
resulting costs of each referral on the Resolve Name DSTrace flag
anytime a costing decision is made.