1
M U
ng tiêu th ca thit b mng trong trung tâm d liu
Theo các nghiên              
Dynatmics 2012 ch
và 2012 . N
nhanh tr- 2020. T
 30%  
. ng
%  
.
  
nhói riêng  ban
   
còn  ( 6a 
.    


 



   
.  các ph
sau: (1) -engineering), (2) ), (3) 
g minh (Smart sleeping/standby)
2. Nhng v còn tn ti

trung bình A t l ng tit kim.
  xut gii pháp WOL (Wake on Lan) cho chuyn mch OpenFlow giúp cho vic
d dàng qun lý  u khin linh hot cho chuyn mch OpenFlow
ng hp h thng trung tâm d liu có quy mô ln hoc khi s c xy ra.
 ng nghiên cu:
 Tp trung vào kin trúc chuyn mch OpenFlow trên nn tng Kit NetFPGA-1G, và
bu khin OpenFlow c phát trin u tiên bi hc Standford.
 Tp trung nghiên cu các thut toán thut mô hình hóa ng cho chuyn mch
OpenFLow.
 u lý thuyt kt hp thc nghim.
 Phm vi nghiên cu:
 Nghiên cu các gii pháp tit king và ch cho chuyn mch
OpenFlow trên nn tng NetFPGA, trin khai trên h thng thc nghim bao gm b
u khin NOX /POX, b ng và s dng board PCIEXT-64UB
, cho .
 ng tiêu th ca chuyn mch và t toán t
NetFPGA-1G (4 cng) trong thc nghing tht toán bng Matlab
trên các mô hình ng ca chuyn mch NetFPGA m rng có s cng ln

 Ni dung ca lun án ch tp trung nghiên cu các gii pháp tit kim ng
tiêu th cho chuyn mch OpenFlow. Các kt qu c ca lu c các
ng nghip s dng  mc ng tiêu th trên toàn mng trong kin
trúc th nghim ECODANE.
4. 
   , và 


. 


1.3.2. 
 (Hình 1.8) 


                 
     ti            


Hình 1.8. 
1.3.3. COpenFlow trên  NetFPGA

 (Hình 1.13) 

Hình 1.13.  
1.4. 
bày .
 
.  
các  
 OpenFlow .

Các gii pháp tit king cho chuyn mch OpenFlow
2.1. 
C 
 -

i
M 

Chuyển mạch
NetFPGA
C0
C1
Chuyển mạch
NetFPGA
C0
C1
Thiết bị
Oscilloscope
3.3V
5.0V
Bo mạch hiển thị
công suất
C0
C1
C2
C3
Phát lưu lượng 1
C0
C1
C2
C3
Phát lưu lượng 2
C2
C2
C2
C2
Chú ý: Băng thông
800Mbps




   

 

  (2.1)
(2.1), 
f/2, f/4, f/8, f/16, f/32, f/64
2.3.2.   CC (Clock Controller)
T CC  
, 
CC CD Hình 2.5 

Xử lý gói
tin
Bộ đệm
vào
Bộ đệm ra
Gói tin vào
Gói tin ra
NF2CORE
Clock
Divider
Xử lý gói
tin
Clock
Controller
UDP

- - - -
M2 M1 M0
7 0
Reserved
ModeFlag

Hình 2.6. Switch state

7
2.4. 
 
37.7% 

   
   .
2.4.1. Nguyên  (link_rate)
Trong BCM5464SR NIC có 4 thanh ghi  .
OpenFlow
OpenFlow 
 Hình 2.8.
- -
27
- - -
31 2930 28
0 1 - -
Hoạt động2 bit đầu
22

 OpenFlow.
  Hình 2.10. 

 
 

Bng 2.4. Bn tin OFPT_PORT_MOD
OpenFlow
header
Port no
MAC
address
Config
Mask
Link
state
Advertise
Pad
8bytes
2bytes
6bytes
4bytes
4bytes
1bytes
4bytes
3bytes
F
- - -
B1 B0 P1 P0
7 0

[0:3]
PC SOFTWARE
DRIVER
CONTROL
SOFTWARE
NF2_REG_GRP

Hình 2.16. are)
        

ghi MII.
2.5.2.1. 
Các c 
Bng 2.5. Các ch  hong mi ca chuyn mch




125 MHz
Idle/10Mbps/100Mbps/1Gbps

62.5 MHz
Idle/10Mbps/100Mbps

3.90625 MHz
Idle 9



 NOX /POX.
2.6.1. 
                
mode.

sau:
E = P
working
* T
working
+ P
sleep
* T
sleep
(2.2)

working
và T
sleep


working
và P
sleep
 

T
sleep


NF2 CORE
USER DATA PATHNF2_MAC
DD
(Data Detector)
Input
Arbiter
VLAN
remover
Watchdog
Output
Port
Lookup
VLAN
adder
Output
Queues
TX
Queue
Ethernet MAC
RX
Queue
CPU DMA QUEUE
NF2 DMA CPCI BUS
NF2 REG
GRP
CPU RX
Queue
CPU TX
Queue
FC

Registers
Core Clock
Controller
Idle timeout
Core_clk_packet_en
Core_clk_reg_en
Core_clk_en
Software
Register
Max Queue L
Max Num Packet
Wait timeout

Hình 2.23.

11



Core Clock (Core Clock Controller).
               
OpeHình 2.25.
IDLE
core_clk_packet_en
= 1
WORKING
core_clk_packet_en



                 
cor
2.6.3. 



u             ác
(gmii_tx_clk) không b        Hình 2.28    
Digital Clock Managers (
125MHz
0
Io
I
1
Io
core_clk_int
CLKIN
CLKFB
CLK0
BUFG
BUFGMUX
core_clk_en
DCM
core_clk = 125MHz

Hình 2.28. 
2.6.4.  
  

Bng 2.9. Công sut tiêu th ca chuyn mch khi gim tn
Ch 
Tn s hong ca
chuyn mch (MHz)
S ln
gim
Công sut tiêu
th (mW)
Công sut tit
kim (mW)
0
125
1
11576
0
1
62.5
1/2
10228
1348
2
31.25
1/4
9872
1701
3
15.625
1/8
9554
2022

1Gbps
11525.6
0
2
100Mbps
7372
4154
3
10 Mbps
6537.6
4988
4
Idle (tt cng)
6440.6
5085
: 


2.7.3. 
 POX
. Cá
12.
Bng 2.12. Công sut tiêu th ca chuyn mch ng vi các ch  hong




Công sut cao
125
1000

Hình 2.35. Hình 2.35.  
 





High .
Bng 2.14. ng tiêu th
c tính
ng tiêu th 
ng tit kim (%)
Ch 
Normal
Ch  High
Performance
Ch  Save
power
Ch  High
Performance
Ch  Save
power
u vào 1
10314J
7088J
6881J
31.27%

2.7.4.2. 

.
Bng 2.15. i gian tr và mt gói tin so vi chuyn mng

High Performance
Save Power

 24ns
Twait timeout + Tprocess
tin
Không
Không
2.8. 
:
          

 T  
 
 T
/POX  OpenFlow
 


ng cho chuyn mch
3.1. 
C trình bày 
 




 

 

 

 


 

 (3.4)
3.4. 
 

Switch_state get_min_power_state(throughput T){
N1000 = (int)floor(T*1.0/999);
check1000:
if(N1000 >= N){
N1000 = N; N100 = 0; N10 = 0;
goto finish;
}
N100 = (int)floor(max((T-N1000*999), 0)*1.0/99);
check100:
if((N100 > N - N1000) || (N100*P100 > P1000)){
N1000++;
goto check1000;
}
N10 = (int)ceil(max((T-N1000*1000-N100*99),

}
  get_max_power_state()         



 


 


 


 



 

17
P
max


max
(T);    

Power Index) 


khi 
 





















  




 Hình 3.3
 
.
3.8.2. NetFPGA-1G
 
 
         Tier-2 HP Enterprise-  và OpenFlow
Pronto- .

a) 

b) 
Hình 3.4. Liên  có 

Hình 3.5. 
S
.

a) 


b) 

Hình 3.6.  19

10.195
8p NetFPGA
60.23
0.1501
23.020
19.564
16p NetFPGA
60.23
0.1677
46.040
38.319
48p NetFPGA
60.23
0.1784
138.120
113.479
16p Enterprise
26.97
0.0659
53.400
49.881
48p Pronto
39.30
0.1318
111.524
96.825

3.9. 







4.3. 
4.3.1. 
có gói tin 
-bit,


 
  


FF …. FF FF 11 22 33 44
16 

48-

6 
0xFF
55 66 11 22 66

Hình 4.1. 
B14 B13 B12 B11 B10 B9 B8 B7
0

B6 B5 B4 B3 B2 B1 B0
B15
1


Tn s hong
00
3.90625 MHz
01
125 MHz
4.3.2. 
K


ETHERNET
NF2_CORE
MII
REGISTER
CONTROL
PORT
[0:3]
NF2_MDIO
Rx&Tx
MAC Rx & Tx
Queue
USER DATA PATH
NF2_Reg_Grp
CPCI_NF2_Bus
WOL
Packet
Detector
Clock
Controller
WOL

          gói tin     tin   
Wake up chuy OpenFlow  Sleep
 OpenFlow 

22
Chuyển mạch OpenFlow
PC1
(Điều khiển
chuyển mạch)
PC2
(Theo dõi trạng
thái chuyển
mạch)
Gửi bản tin
magic_pk
Cổng 3
tắt
Cổng 2
tắt
Cổng 1
10Mbps
Cổng 0
tắt
PCIEXT-64UB
(Đo công suất tiêu thụ)
Mạch hiển thị công suất
NetFPGA

10.

23

Hình 4.10. 
4.5. 

              

.
K
án


   ng



 



 






.
 


 
0% to 100%.
 

             

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