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Packet Scheduling
 
نوع فایل: PowerPoint
تعداد اسلاید (ها): 46
متن پاورپوینت به زبان انگلیسی است.
 
چکیده ای از متن:
Packet Scheduling & Buffer Management
● Decides when and what packet to send on output link
– Usually implemented at output interface
Why Packet Scheduling?
● Can provide per flow or per aggregate protection
● Can provide absolute and relative differentiation in terms of
– Delay
– Bandwidth
– Loss
Fair Queueing
● In a fluid flow system it reduces to bit-by-bit round robin among flows
– Each flow receives min(ri, f) , where
• ri– flow arrival rate
• f – link fair rate (see next slide)
● Weighted Fair Queueing (WFQ)
– associate a weight with…