on a hybrid packets-and-circuits switching logic
TRANSCRIPT
Switching Logic
Marat Zhanikeev [email protected] maratishe.github.io
2016/04/22@CS研＠IEICE
On a Hybrid
PDF: bit.do/160422
Packets-and-Circuits
#packets #circuits
#virtualization #cdn
#cutthrough
#bulktransfer #bigdata
#hotspots
.
Future NOC
NOC
M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 2/12...
2/12
.
Per-Packet Processing Logic
C: Cut Through
Check, etc. Q: Queue
D: Drop QoS classes
M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 3/12...
3/12
.
Overhead in P/C Contexts
Line =
outgoing
port
Overhead = contention
No. of flows
Line =
outgoing
port
Overhead
Scheduling
Traditional
Circuits
M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 4/12...
4/12
.
Hotspot Traffic.Hotspots......is a random variable distribution model
0 10 20 30 40 50List of traffic sources
00.40.81.21.622.42.8
log( traffic volume)
0 10 20 30 40 50List of traffic sources
00.40.81.21.622.42.8
log( traffic volume)
Magnitude=2 Magnitude=10
Hotspots
Normal
Hotspot under a Flash event
• normal, popular, and hot/flash sets
• many uses: CDN, packet flows, Amazononline shop, etc.
• hot/flash items in traffic is known asbulk/bigdata transfer
M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 5/12...
5/12
.
Tall Gates for Bulk Transfer
Tall Gates
Bulks Send
Highway Sources Destination
M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 6/12...
6/12
.
Experiments
M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 7/12...
7/12
.
Setup
• a randomly downloaded trace from WIDE
• 1Gbps+ rates
• replay in accordance with real timestamps but create synthetic switching logic◦ number of packets vs circuit lines◦ complex selection logic (see paper)
M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 8/12...
8/12
.
Example Outcome
• 1: only Packets, 2: with Circuits
0 30 60 90 120 150Average rate (Mbps)
Packets 1 (packets)
Loss 1 (packets)
Packets 2 (circuits)
Circuits
Loss 2 (circuits)
channels#5(2 circuits for 20 top flows)
0 200 400 600 800Time sequence
0
60
120
180
240
300
Rate
(Mbp
s)
Loss
Circuits
Loss with circuits
M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 9/12...
9/12
.
The Spectrum of Performance
0 20 40 60 80 100 120 140 160Data rate (Mbps)
0
20
40
60
80
100
120
140
160
Loss
(Mbp
s)
Packets (traditional)Packets (proposed)Circuits (proposed)
M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 10/12...
10/12
.
That’s all, thank you ...
M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 11/12...
11/12
.
SuperDuperSwitch vs....
Super - duper 32- port
Software Switch ( ClickOS , SDN, NFV,...)
Simple 4- port
Simple 4- port
Simple 4- port
Simple 4- port
Simple 4- port
Simple 4- port
Simple 4- port
Simple 4- port
vs >cost
capacity < M.Zhanikeev -- [email protected] On a Hybrid Packets-and-Circuits Switching Logic -- bit.do/160422 12/12
...
12/12