xStack DES-6500 Modular Layer 3 Chassis Ethernet Switch CLI Manual
DES-6500:4#show bandwidth_control 1:1-1:10
Command: show bandwidth_control 1:1-1:10
Bandwidth Control Table
Port RX Rate (Mbit/sec) TX_RATE (Mbit/sec)
---- ------------------------ ----------------------
1:1 no_limit 10
1:2 no_limit 10
1:3 no_limit 10
1:4 no_limit 10
1:5 no_limit 10
1:6 no_limit 10
1:7 no_limit 10
1:8 no_limit 10
1:9 no_limit 10
1:10 no_limit 10
DES-6500:4#
config scheduling
Purpose Used to configure traffic scheduling for each of the Switch’s
hardware priority classes.
Syntax
config scheduling <class_id 0-6> {max_packet <value 0-15>}
Description The Switch contains seven hardware classes of service per
device. The Switch’s default settings draw down seven hardware
classes of service in order, from the highest priority class (Class 6)
to the lowest priority class (Class 0). Starting with the highest
priority class (Class 6), the highest priority class will transmit all of
the packets and empty its buffer before allowing the next lower
priority class to transmit its packets. The next highest priority class
will empty before proceeding to the next class and so on. Lower
priority classes are allowed to transmit only if
the higher priority
classes in the buffer are completely emptied. Packets in the higher
priority classes are always emptied before any in the lower priority
classes.
The default settings for QoS scheduling employ this strict priority
scheme to empty priority classes.
The config scheduling command can be used to specify the
weighted round-robin (WRR) rotation by which these seven
hardware priority classes of service are reduced. To use a
weighted round-robin (WRR) scheme, the max_packets
parameters must not have a value of zero (0). (See Combination
Queue below.)
The max_packet parameter allows specification of the maximum
number of packets a given priority class can transmit per weighted
round-robin (WRR) scheduling cycle. This provides for a
controllable CoS behavior while allowing for other classes to
empty as well. A value between 0 and 15 packets can be specified
per priority queue.
Entering a 0 into the <value 0-15> field of the max_packet
parameter allows for the creation of a Combination Queue for the
forwarding of packets. This Combination Queue allows for a
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