3Com CoreBuilder 7000 Management Manual page 168

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Call Contract Parameters
When you request call parameter information about a specific call, the
call contract information is also displayed. The information displayed
depends on the service category of the call. The UBR service category is
the one used with LAN emulation; you see it most often in the
CoreBuilder 7000 family switch. For more information about traffic
contracts, see "Call Admission Control" on page 117 in the Operations
Guide. Also, "Display CAC Parameters" on page 219 to display the Call
Admission Control parameters for the switch.
Table 24 shows the call contract parameters displayed for a call with
service category UBR. These are the only parameters relevant to the UBR
service category.
Table 24 UBR Call Contract Parameters
Name
Best effort
Frame discard *
* relevant to UNI 4.0, PNNI only
Table 25 shows the call contract parameters displayed for a call with
service category CBR.
Table 25 CBR Call Contract Parameters
Name
PCR 0
PCR 0+1
SCR 0
SCR 0+1
MBS 0
MBS 0+1
Best effort
*
Frame discard
Description
Yes–This is UBR service category
No–This is not UBR service category
Yes–Perform frame discard
No–Don't perform frame discard
Description
Peak Cell Rate for Cell Loss Priority 0
Peak Cell Rate for Cell Loss Priority 0+1 cell/sec
Sustainable Cell Rate for Cell Loss
Priority 0
Sustainable Cell Rate for Cell Loss
Priority 0+1
Maximum Burst Size for Cell Loss
Priority 0
Maximum Burst Size for Cell Loss
Priority 0+1
Yes–This is UBR service category
No–This is not UBR service category
Yes–Perform frame discard
No–Don't perform frame discard
Units
cell/sec
cell/sec
cell/sec
cell/sec
cell/sec