putting intelligence in internetworking: an architecture of two level overlay ee228 project anshi...
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Putting Intelligence in Putting Intelligence in Internetworking: an Internetworking: an
Architecture of Two Level Architecture of Two Level OverlayOverlay
EE228 ProjectEE228 Project
Anshi LiangAnshi Liang
Ye ZhouYe Zhou
End-to-EndEnd-to-End
The traditional networking research is based The traditional networking research is based on the end-to-end principle: on the end-to-end principle:
----The function in question can completely and correctly The function in question can completely and correctly be implemented only with the knowledge and help of be implemented only with the knowledge and help of the application standing at the endpoints of the the application standing at the endpoints of the communications system. Therefore, providing that communications system. Therefore, providing that questioned function as a feature of the questioned function as a feature of the communications systems itself is not possible communications systems itself is not possible
End-to-EndEnd-to-EndClark said: now we are moving away from end Clark said: now we are moving away from end to end… to end…
Significant changes nowadays compared to the Significant changes nowadays compared to the early stage of Internet. early stage of Internet.
End-to-EndEnd-to-EndClark said: now we are moving away from end Clark said: now we are moving away from end to end… to end…
Significant changes nowadays compared to the Significant changes nowadays compared to the early stage of Internet. early stage of Internet.
--From the application point of view: --From the application point of view: more demanding more demanding applications, ISP service differentiation, more applications, ISP service differentiation, more security issues and less sophisticated users.security issues and less sophisticated users.
End-to-EndEnd-to-EndClark said: now we are moving away from end Clark said: now we are moving away from end to end… to end…
Significant changes nowadays compared to the Significant changes nowadays compared to the early stage of Internet. early stage of Internet.
--From the application point of view: --From the application point of view: more demanding more demanding applications, ISP service differentiation, more applications, ISP service differentiation, more security issues and less sophisticated users.security issues and less sophisticated users.
--From the hardware point of view: --From the hardware point of view: more powerful more powerful computer boxes and more sophisticated computer boxes and more sophisticated routers/switches. routers/switches.
End-to-EndEnd-to-End
Now we need to have intelligence in the Now we need to have intelligence in the network; now we can put intelligence in the network; now we can put intelligence in the network.network.
End-to-EndEnd-to-End
Now we need to have intelligence in the Now we need to have intelligence in the network; now we can put intelligence in the network; now we can put intelligence in the network.network.
--Alteon: --Alteon: a powerful switch with L2-L7 switching abilitya powerful switch with L2-L7 switching ability
End-to-EndEnd-to-End
Now we need to have intelligence in the Now we need to have intelligence in the network; now we can put intelligence in the network; now we can put intelligence in the network.network.
--Alteon: --Alteon: a powerful switch with L2-L7 switching abilitya powerful switch with L2-L7 switching ability--ISD: --ISD: the computational plane for Alteon, equipped with the computational plane for Alteon, equipped with
CPU and FPGA/ASIC hardware assist for specific CPU and FPGA/ASIC hardware assist for specific applicationsapplications
End-to-EndEnd-to-End
Now we need to have intelligence in the Now we need to have intelligence in the network; now we can put intelligence in the network; now we can put intelligence in the network.network.
--Alteon: --Alteon: a powerful switch with L2-L7 switching abilitya powerful switch with L2-L7 switching ability--ISD: --ISD: the computational plane for Alteon, equipped with the computational plane for Alteon, equipped with
CPU and FPGA/ASIC hardware assist for specific CPU and FPGA/ASIC hardware assist for specific applicationsapplications
--Alteon+ISD: --Alteon+ISD: an intelligent switch with strong an intelligent switch with strong computational ability. Or a computer with strong computational ability. Or a computer with strong switching ability. We call it Programmable Gateway.switching ability. We call it Programmable Gateway.
Alteon+ISDAlteon+ISD
1Add
Conn.1
AFM FlowSelection
Active Service:Policy Checking
AFM Actionon the Flow
Active Services
Intercepts selected flows and performs intelligent processing based on L2-L7 filtering
The emphasis is on interception andprocessing transparently. Entities at bothends may not be aware of the existence ofthe Alteon in the path
Users Servers
Active Services PlatformActive Services Platform
Active Services PlatformActive Services Platform
Active Services PlatformActive Services Platform
Active Services Platform
Up to 256 Linux based engines
Content Delivery: Overlay NetworkContent Delivery: Overlay Network
user user
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Content Provider
Akamai
AkamaiAkamai
user user
MAN
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Content Provider
AkamaiAkamai
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MAN
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Content Provider
Two Level OverlayTwo Level Overlay
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Content Provider
Inner Level Inner Level
Inner LevelInner Level
Two Level OverlayTwo Level Overlay
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Content Provider
Inner Level Inner Level
Inner LevelInner Level
Two Level OverlayTwo Level Overlay
Putting these Programable Gateway at the Putting these Programable Gateway at the edge point of LAN (content delivery, edge point of LAN (content delivery, multicast, web cache, admission control, multicast, web cache, admission control, replicated audio/video streaming, P2P replicated audio/video streaming, P2P protocol)protocol)
Two Level OverlayTwo Level Overlay
Putting these Programable Gateway at the Putting these Programable Gateway at the edge point of LAN (content delivery, edge point of LAN (content delivery, multicast, web cache, admission control, multicast, web cache, admission control, replicated audio/video streaming, P2P replicated audio/video streaming, P2P protocol)protocol)
Putting these Programable Gateway on the Putting these Programable Gateway on the MAN (storage network management, QoS MAN (storage network management, QoS channel and service negotiation)channel and service negotiation)
Inner Level OverlayInner Level Overlay
Use the inner level of overlay to aggregate QoS traffic.Use the inner level of overlay to aggregate QoS traffic.
Inner Level OverlayInner Level Overlay
Use the inner level of overlay to aggregate QoS traffic.Use the inner level of overlay to aggregate QoS traffic.
The overall traffic model of customers can be predicted, The overall traffic model of customers can be predicted, so the inner level of overlay nodes can pre-reserve so the inner level of overlay nodes can pre-reserve bandwidth capacity to other nodes. bandwidth capacity to other nodes.
Inner Level OverlayInner Level Overlay
Use the inner level of overlay to aggregate QoS traffic.Use the inner level of overlay to aggregate QoS traffic.
The overall traffic model of customers can be predicted, The overall traffic model of customers can be predicted, so the inner level of overlay nodes can pre-reserve so the inner level of overlay nodes can pre-reserve bandwidth capacity to other nodes. bandwidth capacity to other nodes.
Fewer route setup O(nFewer route setup O(n22)+m, n/m is the number of nodes )+m, n/m is the number of nodes of inner/outer overlay, respectively. of inner/outer overlay, respectively.
Inner Level OverlayInner Level Overlay
Use the inner level of overlay to aggregate QoS traffic.Use the inner level of overlay to aggregate QoS traffic.
The overall traffic model of customers can be predicted, The overall traffic model of customers can be predicted, so the inner level of overlay nodes can pre-reserve so the inner level of overlay nodes can pre-reserve bandwidth capacity to other nodes. bandwidth capacity to other nodes.
Fewer route setup O(nFewer route setup O(n22)+m, n/m is the number of nodes )+m, n/m is the number of nodes of inner/outer overlay, respectively. of inner/outer overlay, respectively.
The two level overlay architecture with programmable The two level overlay architecture with programmable gateway can solve the inter-AS bottleneck problem.gateway can solve the inter-AS bottleneck problem.
Outer Level OverlayOuter Level Overlay
Use the outer level of overlay to deliver to end users.Use the outer level of overlay to deliver to end users.
Outer Level OverlayOuter Level Overlay
Use the outer level of overlay to deliver to end users.Use the outer level of overlay to deliver to end users.
Outer level of overlay nodes maintains end customers Outer level of overlay nodes maintains end customers information. Process admission control.information. Process admission control.
Outer Level OverlayOuter Level Overlay
Use the outer level of overlay to deliver to end users.Use the outer level of overlay to deliver to end users.
Outer level of overlay nodes maintains end customers Outer level of overlay nodes maintains end customers information. Process admission control.information. Process admission control.
Suggested Business Model: Suggested Business Model:
end customers end customers
content provider (web site, TV station…) content provider (web site, TV station…)
ISP (constructor of outer level)ISP (constructor of outer level)
Network Operator (constructor of inner level)Network Operator (constructor of inner level)
Applications: Applications:
NBA live broadcast (all games) over the network; NBA live broadcast (all games) over the network;
Company web conferenceCompany web conference
Online university courseOnline university course
Online Theater/Pay Per View…Online Theater/Pay Per View…
Applications: Applications:
NBA live broadcast (all games) over the network; NBA live broadcast (all games) over the network;
Company web conferenceCompany web conference
Online university courseOnline university course
Online Theater/Pay Per View…Online Theater/Pay Per View…
Implementation:Implementation:
Avoid congestion for these paid service: over reserve Avoid congestion for these paid service: over reserve bandwidth, limit best-effort traffic if needed. bandwidth, limit best-effort traffic if needed.
BenefitsBenefits
End customer: better service, no awareness of End customer: better service, no awareness of in-middle entities.in-middle entities.
BenefitsBenefits
End customer: better service, no awareness of End customer: better service, no awareness of in-middle entities.in-middle entities.
Content provider: better performance for Content provider: better performance for content delivery, need to pay for service but content delivery, need to pay for service but should get be able to get more from customers should get be able to get more from customers (QoS video streaming).(QoS video streaming).
BenefitsBenefits
End customer: better service, no awareness of End customer: better service, no awareness of in-middle entities.in-middle entities.
Content provider: better performance for Content provider: better performance for content delivery, need to pay for service but content delivery, need to pay for service but should get be able to get more from customers should get be able to get more from customers (QoS video streaming).(QoS video streaming).
ISP: reduce congestion for paid serviceISP: reduce congestion for paid service
BenefitsBenefits
End customer: better service, no awareness of End customer: better service, no awareness of in-middle entities.in-middle entities.
Content provider: better performance for Content provider: better performance for content delivery, need to pay for service but content delivery, need to pay for service but should get be able to get more from customers should get be able to get more from customers (QoS video streaming).(QoS video streaming).
ISP: reduce congestion for paid serviceISP: reduce congestion for paid service
Network Operator: get pay from ISPNetwork Operator: get pay from ISP
Other Applications—Storage NetworkOther Applications—Storage Network
This two-level overlay network with This two-level overlay network with programmable gateway can provide wide programmable gateway can provide wide range support to many applications.range support to many applications.
Other Applications—Storage NetworkOther Applications—Storage Network
This two-level overlay network with This two-level overlay network with programmable gateway can provide wide programmable gateway can provide wide range support to many applications.range support to many applications.Example: Storage NetworkExample: Storage Network
----The outer level nodes can provide functionalities like The outer level nodes can provide functionalities like geographic load balancing, disaster recovery (re-geographic load balancing, disaster recovery (re-route setup), mirroring, etc.route setup), mirroring, etc.
Other Applications—Storage NetworkOther Applications—Storage Network
This two-level overlay network with This two-level overlay network with programmable gateway can provide wide programmable gateway can provide wide range support to many applications.range support to many applications.Example: Storage NetworkExample: Storage Network
----The outer level nodes can provide functionalities like The outer level nodes can provide functionalities like geographic load balancing, disaster recovery (re-geographic load balancing, disaster recovery (re-route setup), mirroring, etc.route setup), mirroring, etc.
--The inner level nodes (with hardware assist) can --The inner level nodes (with hardware assist) can provide functionalities like storage management, provide functionalities like storage management, firewall, etc.firewall, etc.
Other Applications—Wireless Other Applications—Wireless NetworkNetwork
Rough ideas:Rough ideas:--Dynamic bandwidth capacity allocation according to --Dynamic bandwidth capacity allocation according to
change of subscribers at a locationchange of subscribers at a location
--Adaptive content delivery according to end user link --Adaptive content delivery according to end user link speedsspeeds
--Congestion control--Congestion control
ConclusionConclusion
An new architecture with:An new architecture with:--Two-level overlay network structure--Two-level overlay network structure--Intelligence in the network: Programmable Gateway--Intelligence in the network: Programmable Gateway--Scalable QoS content delivery--Scalable QoS content delivery
ConclusionConclusion
An new architecture with:An new architecture with:--Two-level overlay network structure--Two-level overlay network structure--Intelligence in the network: Programmable Gateway--Intelligence in the network: Programmable Gateway--Scalable QoS content delivery--Scalable QoS content delivery
A testbed is constructed.A testbed is constructed.
S D
s e t
B a y N e tw o r k s
S D
s e t
B a y N e tw o r k s
S D
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B a y N e tw o r k s
S D
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B a y N e tw o r k s
S D
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B a y N e tw o r k s
Passport 8606 Passport 8610
Accelar 1100
Accelar 1100
Accelar 1100
Accelar 1100
Accelar 1100
Accelar 1100
10.10.100.2/24
10.1
0.10
0.1
10.10.110.2/24
10.10.110.1/24
10.10.120.2/24
10.10.120.1/24
10.10.130.2/24
10.10.130.1/24
10.20.200.2
10.20.210.2
10.20.200.1 10.20.210.1
MLT
OSPF Area 10.10.0.0
OSPF Area 10.20.0.0
OSPF Area 0.0.0.0
10.1.1.1
10.1.1.2
10.2.2.1/24
10.2.2.1/24
Firewall
Millennium Network
CrashBox1
CrashBox2
CrashBox3
CrashBox4
CrashBox6
CrashBox5
1Gbps Link
1Gbps Link
Alteon180e
Alteon184
Alteon Web Systems
iSDAlteon
Alteon180e
Alteon184
Alteon180e
Alteon184
Alteon Web Systems
iSDAlteon
Alteon180e
Alteon184
Alteon 184
Alteon 184
Alteon iSD
Alteon iSD
Alteon 184
ConclusionConclusion
An new architecture with:An new architecture with:--Two-level overlay network structure--Two-level overlay network structure--Intelligence in the network: Programmable Gateway--Intelligence in the network: Programmable Gateway--Scalable QoS content delivery--Scalable QoS content delivery
A testbed is constructed.A testbed is constructed.An ongoing experiment with iSCSI packet An ongoing experiment with iSCSI packet interception, recognition and redirection (for interception, recognition and redirection (for storage network geographic load balancing).storage network geographic load balancing).
Future DirectionFuture Direction
This two-level overlay architecture will be This two-level overlay architecture will be further discussed/modified/implemented further discussed/modified/implemented within a Nortel-Berkeley networking research within a Nortel-Berkeley networking research groupgroup
Functionalities for MAN will be experimented Functionalities for MAN will be experimented on our testbedon our testbed
A larger scale experiment will be constructed A larger scale experiment will be constructed for full functionalitiesfor full functionalities
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