A Comparative Performance Study of Load Adaptive Energy Saving Schemes for IP-Over-WDM Networks

Marcel Caria; Mohit Chamania; Admela Jukan

doi:10.1364/JOCN.4.000152

Journal of Optical Communications and Networking
Vol. 4,
Issue 3,
pp. 152-164
(2012)
•https://doi.org/10.1364/JOCN.4.000152

A Comparative Performance Study of Load Adaptive Energy Saving Schemes for IP-Over-WDM Networks

Marcel Caria, Mohit Chamania, and Admela Jukan

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
Marcel Caria, Mohit Chamania, and Admela Jukan, "A Comparative Performance Study of Load Adaptive Energy Saving Schemes for IP-Over-WDM Networks," J. Opt. Commun. Netw. 4, 152-164 (2012)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article

Abstract

Load adaptive energy saving schemes for backbone IP networks use dynamic transport circuit services to adapt the active network resources to the current traffic demand in order to reduce the network’s energy consumption. Recently, several approaches, categorized as Switch-Off schemes, have been proposed which attempt to reduce the energy consumption of already existing networks by switching off IP ports and links during periods of low traffic. Although it has been shown that these schemes can notably decrease the network’s energy consumption, they are prone to instabilities in the IP routing service and decreased resilience due to reduced connectivity, and they may induce monitoring reconfigurations. To address these challenges, we propose the Switch-On scheme in an IP-over-WDM network, where the network is designed so that the essential IP connectivity is maintained during low traffic periods while dynamic circuits are switched on in the optical layer to boost network capacity during periods of high traffic demand. Switching on the optical links during peak network loads can address some of the challenges associated with switching off IP ports and links during the low traffic periods. In this paper, we provide a comparative analysis of load adaptive energy saving schemes and present a discussion of the trade-off between energy efficiency and routing stability. The performance results and analytical study show that the multilayer approaches in IP-over-WDM networks carry significant potential for improvement in energy efficiency.

Full Article | PDF Article

More Like This

Energy Efficient Survivable IP-Over-WDM Networks With Network Coding

Mohamed Musa, Taisir Elgorashi, and Jaafar Elmirghani
J. Opt. Commun. Netw. 9(3) 207-217 (2017)

Network Energy Efficiency Gains Through Coordinated Cross-Layer Aggregation and Bypass

Michael Z. Feng, Kerry Hinton, Robert Ayre, and Rodney S. Tucker
J. Opt. Commun. Netw. 4(11) 895-905 (2012)

A Power Consumption Analysis for IP-Over-WDM Core Network Architectures

Francesco Musumeci, Massimo Tornatore, and Achille Pattavina
J. Opt. Commun. Netw. 4(2) 108-117 (2012)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (13)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (5)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (19)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Parameter	Type	Meaning
$\dot{V} = {\dot{x}, \dot{y}, \dots}$	Set	Set of circuit switches
$\dot{E} = {(\dot{x}, \dot{y}), (\dot{x}, \dot{z}), \dots}$	Set	Set of physical links (fibers) between switches
$V = {x, y, \dots}$	Set	Set of IP routers in layer 3, where router x, co-located with switch $\dot{x}$ , etc.
$E = {(x, y), (x, z), \dots}$	Set	Set of IP links in layer 3
M	Integer	Maximum number of ports at any router in the network
${\hat{L}}_{x y}$	Boolean	Parameter for existence of link ( $x, y$ ) during the preceding time interval
$N = {peak, off-peak}$	Set	Set of time intervals
$τ^{n}$	Real	Duration of a certain time interval, $\sum_{n} τ^{n} = 24 h$
T	Set	Set of available bandwidth rates for circuits
$C^{t}$	Integer	Capacity of a circuit of a certain bandwidth rate $t \in T$
$λ_{x y}^{n}$	Integer	Traffic from x to y in time interval n
${\dot{P}}_{x y}^{t}$	Integer	Power consumption of a circuit from x to y with bandwidth rate $t \in T$
$P^{t}$	Integer	Power consumption of a pair of IP ports with bandwidth rate $t \in T$
α	Real	Maximum IP link utilization, $0 \leq α \leq 1$
$w_{x y}$	Real	IP routing weight
$σ \in R^{+}$	Real	Weighting factor of the IP rerouting penalty
Variable	Type	Meaning
$X_{x y}^{n, t}$	Integer	Number of circuits of rate t used in time interval n for IP Link $(x, y)$
$C_{x y}^{n}$	Integer	Capacity of IP Link $(x, y)$ in time interval n
$L_{x y}^{n}$	Boolean	Link Existence Variable: true, if the IP link $(x, y)$ exists in time interval n
$R_{s d}^{n} (i, j)$	Boolean	IP Routing Variable: true if Path from s to d uses link $(i, j)$ in time interval n
$ℜ_{s d}^{n} (x, y)$	Boolean	Extended routing parameter: true if path from s to d uses loose path $s \to x \to y \to d$
$P_{x y}^{n}$	Integer	Power consumption of IP link from x to y in time interval n
$R C_{s d}^{n}$	Real	IP routing cost from s to d in time interval n
$F T_{i j d}^{n}$	Boolean	IP forwarding variable for time interval n: true if router i forwards packets for d to j
$P u n i s h^{n}$	Integer	Penalty for routing changes in time interval n

	WA	CA1	CA2	UT	CO	TX	NE	IL	PA	GA	MI	NY	NJ	MD
WA	4.72	23.84	10.41	2.42	17.47	0.78	4.78	22.14	3.04	1.65	27.71	8.6	3.93	17.01
CA1	63.92	3.48	54.23	26.78	52.12	23.27	35.45	137.75	10.17	19.03	71.05	91.68	49.1	68.97
CA2	9.7	42.28	0.03	41.43	7.56	32.33	7.7	76.15	8.92	4.11	45.9	5.52	12.37	19.18
UT	6.24	5.52	12.13	0	1.7	0.54	0.62	2.56	1.78	2.9	11.66	10.81	2.13	6.2
CO	109.13	142.22	16.91	3.05	0.32	3.59	9.58	55.31	21.35	15.93	64.1	105.39	11.72	19.34
TX	1.64	14.7	3.05	4.91	3.02	0	2.32	2.39	0.78	3.44	5.38	4.29	1.37	6.18
NE	32.89	55.12	90.94	3.98	19.59	7.02	0	101.49	17.62	19.52	136.91	82.96	21.04	145.67
IL	13.29	208.49	186.98	7.58	25.08	2.37	86.3	0.28	39.07	29.34	80.05	63.25	17.96	79.02
PA	75.49	17.73	33.2	5.34	22.21	6.06	22.28	54.24	0	35.22	98.39	131.21	40.6	56.12
GA	1.66	37.27	9.12	3.32	19.86	8.43	4.43	50.74	6.08	0.12	32.29	23.26	11.28	12.77
MI	9.93	33.43	51.82	4.5	8.4	11.55	16.7	33.68	18.2	22.33	40.44	53.04	28.69	33.06
NY	27.76	117.19	17.66	13	38.22	6.36	15.4	50.95	35.2	26.16	188.12	66	24.89	58.64
NJ	35	49.19	16.53	6.7	7.48	0.76	3.99	21.69	104.61	31.73	61.49	70.41	6.28	46.4
MD	72.8	201.79	48.26	20.41	79.36	28.29	29.07	81.65	27.21	1.48	115.29	122.31	55.78	108.11

Traffic scenario	Value range
Daytime traffic	$[60, 000, 70, 000]$ times original traffic
Nighttime 30%	$[25 %, 35 %]$ of daytime traffic
Nighttime 40%	$[35 %, 45 %]$ of daytime traffic
Nighttime 50%	$[45 %, 55 %]$ of daytime traffic
Nighttime 60%	$[55 %, 65 %]$ of daytime traffic
Nighttime 70%	$[65 %, 75 %]$ of daytime traffic

Cap (Gb/s)	${\dot{P}}_{x y}^{t}$	$P^{t}$
10	1	5
40	3	16
100	7	34

Mechanism	10 Gb/s	40 Gb/s	100 Gb/s
Switch-Off	42.4	22.8	1.6
Switch-On BP	92.0	7.4	0
Switch-On NE	94.2	6.1	0

Abstract

Cited By

Figures (13)

Tables (5)

Equations (19)

Journal of Optical Communications and Networking