Cisco MGX 8850 Command Reference Manual page 339

Chapter 5 PNNI Commands
-avcrMt
-cdvPm
-ctdPm
Usage Guidelines
PTSE packets update the peer group when network changes occur. Your network should run fine with
the defaults PTSE timing parameters. Networks that have properties significantly different from the
norm may perform better if you optimize some of the PTSE parameters, but you should change these
parameters carefully, and test the network before introducing live traffic.
For example, if no one is permitted to change a network topology (perhaps for test purposes), you may
decide that the default -ptseHolddown value (1 sec) is too small, causing sequential broadcasts of
identical PTSE packets. Further reason for making such a change would be given if the network was a
small and it's connections were short. Inversely, it may warrant a smaller -ptseHolddown value if many
changes are being made to a network, or if it was large, or if it had many long connections. These are
only examples—these changes should only be made be network experts.
Related Commands
dsppnni-timer
Attributes
Log: log
Release 2.0, Part Number 78-10467-04 Rev C0, October 2001
Specify the minimum threshold used in the algorithms that determine
significant change for available cell rate (AvCR) parameters which are
expressed as a percentage. You can change this value to minimize the
overhead created by advertisements triggered by AVCR changes.
avcr-mt is expressed as a percentage.
Range: 1–99 per cent.
Default = 3 per cent.
Specify the proportional multiplier used in the algorithms that
determine significant change for Cell Delay Variation (CDV)
parameters which are expressed as a percentage. is the variation of
delay between cells, measured peak to peak.You can change this value
to minimize the overhead created by advertisements triggered by CDV
changes.
cdv-pm is expressed as a percentage.
Range: 1–99 per cent.
Default = 25 per cent.
Specify the proportional multiplier used in the algorithms that
determine significant change for cell transfer delay (CTD) parameters
which are expressed as a percentage. You can change this value to
minimize the overhead created by advertisements triggered by changes
to CTD values.
ctd-pm is expressed as a percentage.
Range: 1–99 per cent.
Default = 50 per cent.
State: active Privilege: SUPER_GP
Cisco MGX 8850 Routing Switch Command Reference
cnfpnni-timer
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