DELL S50V User Manual
Quality of Service | 873
Figure 41-15. show qos statistics Command Example
Allocating Bandwidth to Multicast Queues
e
The E-Series has 128 multicast queues per port-pipe, which are transparent, and eight unicast queues per
port. You can allocate a specific bandwidth percentage per port-pipe to multicast traffic using the
command
port. You can allocate a specific bandwidth percentage per port-pipe to multicast traffic using the
command
queue egress multicast bandwidth-percentage
from CONFIGURATION mode.
•
If you configure
bandwidth-percentage
for unicast only, 1/8 of the port bandwidth is reserved for
multicast, and the remaining bandwidth is distributed based on your configuration.
•
If you configure multicast bandwidth, after assigning the specified amount of bandwidth to multicast
the remaining bandwidth is distributed according to the WFQ algorithm.
the remaining bandwidth is distributed according to the WFQ algorithm.
•
If you configure
bandwidth-percentage
for both unicast and multicast, then bandwidth is assigned
based on your configuration for multicast then unicast (based on the remaining available bandwidth),
and the remaining bandwidth is distributed among the other queues.
and the remaining bandwidth is distributed among the other queues.
FTOS Behavior: The C-Series fetches the per-queue packet count via class-maps. The count is the
number of packets matching the ACL entries in class-map. Every time the class-map or policy-map is
modified, the ACL entries are re-written to the Forwarding Processor, and the queue statistics are
cleared. This behavior is different from the E-Series. The E-Series fetches the packet count directly
from counters at each queue, which allows queue statistics to persist until explicitly cleared via the CLI.
number of packets matching the ACL entries in class-map. Every time the class-map or policy-map is
modified, the ACL entries are re-written to the Forwarding Processor, and the queue statistics are
cleared. This behavior is different from the E-Series. The E-Series fetches the packet count directly
from counters at each queue, which allows queue statistics to persist until explicitly cleared via the CLI.
FTOS#show qos statistics wred-profile
Interface Gi 5/11
Queue# Drop-statistic WRED-name Min Max Dropped Pkts
0 Green WRED1 10 100 51623
Yellow WRED2 20 100 51300
Out of Profile 0
1 Green WRED1 10 100 52082
Yellow WRED2 20 100 51004
Out of Profile 0
2 Green WRED1 10 100 50567
Yellow WRED2 20 100 49965
Out of Profile 0
3 Green WRED1 10 100 50477
Yellow WRED2 20 100 49815
Out of Profile 0
4 Green WRED1 10 100 50695
Yellow WRED2 20 100 49476
Out of Profile 0
5 Green WRED1 10 100 50245
Yellow WRED2 20 100 49535
Out of Profile 0
6 Green WRED1 10 100 50033
Yellow WRED2 20 100 49595
Out of Profile 0
7 Green WRED1 10 100 50474
Yellow WRED2 20 100 49522
Out of Profile 0
FTOS#