R3303-HP HSR6800 Routers Layer 2 - WAN Configuration Guide

9
Step Command Remarks
7. Set the PVC service type and the
rate-related parameters.
• Set the PVC's service type to
constant bit rate (CBR):
service cbr output-pcr [ cdvt
cdvt-value ]
• Set the PVC's service type to
unspecified bit rate (UBR),
and set the rate-related
parameters:
service ubr output-pcr
• Set the PVC's service type to
nrt-VBR, and set the
rate-related parameters:
service vbr-nrt output-pcr
output-scr output-mbs
• Set the PVC's service type to
rt-VBR, and set the
rate-related parameters:
service vbr-rt output-pcr
output-scr output-mbs
Optional.
By default, the service type of a
PVC is UBR.
The CDVT is 500μs by default.
You can use these four commands
to set the service type and the
parameters concerning
transmission rate. A newly
configured service type overwrites
the existing one.
Setting the CLP bit for ATM cells
By setting the Cell Loss Priority (CLP) bit in ATM cells, you can redefine the drop probability of ATM cells
when the network becomes congested.
To set the CLP bit for ATM cells:
Step Command Remarks
1. Enter system view.
system-view N/A
2. Create a class and enter class
view.
traffic classifier tcl-name [ operator
{ and | or } ]
N/A
3. Configure the match criteria.
if-match [ not ] match-criteria N/A
4. Return to system view.
quit N/A
5. Create a traffic behavior and
enter traffic behavior view.
traffic behavior behavior-name N/A
6. Mark the CLP bit for ATM
cells.
remark [ green | red | yellow ]
atm-clp atm-clp-value
Optional.
By default, the CLP bit is not
marked for ATM cells.
The CLP bit of ATM cells is 0 or 1.
When congestion occurs, ATM
cells with CLP bit 1 are dropped
preferentially.
7. Return to system view.
quit N/A
8. Create a policy and enter
policy view.
qos policy policy-name N/A
9. Associate the class with the
traffic behavior in the policy.
classifier tcl-name behavior
behavior-name
N/A