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OmniSwitch os6900 User Manual

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Configuring QoS Congestion Management
OmniSwitch AOS Release 7 Network Configuration Guide June 2013 page 25-19
The centralized scheduler in the switch fabric arbitrates flows between ingress and egress ports based on
feedback from the egress port. Deep ingress buffers facilitate holding ingress traffic when congestion
occurs on the egress, helping to provide delivery with little or no packet loss.
The OmniSwitch 10K implementation of VOQ means that packets only cross the switch shortly before
they exit the system. And, because egress bandwidth capacity is checked before packets are sent across the
switch, adverse traffic patterns do not disrupt rate guarantees.
OmniSwitch 10K Queue Size
The queue size is an aggregate of all the ingress Traffic Manager queues that are allocated for a specific
port. For example, if the maximum queue size for a port is 1.5MB for each of its queues per ingress Traf-
fic Manager (also referred to as a node) and there are 8 48-port NIs in the system, each port with a maxi-
mum queue size of 1.5MB, the maximum aggregated queue size is calculated as 1.5MB * 8 = 12MB.
If any NI is removed or inserted, this causes the addition or removal of Traffic Manager queues, which in
turn changes the aggregate maximum queue size.

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OmniSwitch os6900 Specifications

General IconGeneral
BrandOmniSwitch
Modelos6900
CategorySwitch
LanguageEnglish