Dell Force10 S55T S55 Configuration Guide FTOS 8.3.5.3 - Page 581
Allocating Bandwidth to Multicast Queues, If you con multicast bandwidth
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Figure 31-15. show qos statistics Command Example Force10#show qos statistics wred-profile Interface Gi 5/11 Queue# Drop-statistic WRED-name Min Max 0 Green Yellow Out of Profile 1 Green Yellow Out of Profile 2 Green Yellow Out of Profile 3 Green Yellow Out of Profile 4 Green Yellow Out of Profile 5 Green Yellow Out of Profile 6 Green Yellow Out of Profile 7 Green Yellow Out of Profile Force10# WRED1 WRED2 WRED1 WRED2 WRED1 WRED2 WRED1 WRED2 WRED1 WRED2 WRED1 WRED2 WRED1 WRED2 WRED1 WRED2 10 100 20 100 10 100 20 100 10 100 20 100 10 100 20 100 10 100 20 100 10 100 20 100 10 100 20 100 10 100 20 100 Dropped Pkts 51623 51300 0 52082 51004 0 50567 49965 0 50477 49815 0 50695 49476 0 50245 49535 0 50033 49595 0 50474 49522 0 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. Allocating Bandwidth to Multicast Queues e Allocating Bandwidth to Multicast Queues is supported on platform: 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 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. • 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. Quality of Service | 581
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