PLANET XGS3-24042 - Manual (Page 290)

15-136
Forbid the egress packets rewriting DSCP value.
Default:
The egress packets rewrite DSCP value.
Command mode:
Port Mode.
Usage Guide:
The egress packets can not rewrite DSCP value when configuring pass-through-dscp on the ingress.
This command may associate with other commands of QoS, such as mls qos trust command. After
QoS actions are valid, the egress packets save the original DSCP value.
Example:
Configuring ethernet port 1/0/1 to trust CoS value, i.e., classifying the packets according to CoS
value.
Switch(config)#interface ethernet 1/0/1
Switch(config-if-ethernet1/0/1)#mls qos trust cos
Switch(config-if-ethernet1/0/1)#pass-through-dscp
15.16 policy
Command:
Single Bucket Mode:
policy <bits_per_second> <normal_burst_bytes> ({exceed-action ACTION} )
Dual Bucket Mode:
policy <bits_per_second> <normal_burst_bytes> [pir <peak_rate_bps>] |
<maximum_burst_bytes> [{exceed-action ACTION | violate-action ACTION }]
ACTION definition:
drop | transmit | set-internal-priority <intp_value> | policied-intp-transmit
no policy
Function:
The non-aggregation policy command supporting three colors. Determine whether the working
mode of token bucket is singe rage single bucket, single rate dual bucket or dual rate dual bucket,
set the corresponding action to the different color packets. The no command will delete the mode
configuration.
Parameters:
bits_per_second: The committed information rate – CIR (Committed Information Rate), in Kbps,
ranging from 1 to 10000000;
normal_burst_bytes: The committed burst size – CBS (Committed Burst Size), in byte, ranging
from 1 to 1000000. When the configured CBS value exceeds the max limit of the chip, configure the