Ubiquitous component remoting support on overlay network
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Ubiquitous Component Remoting Support on Overlay Network. Adaptation support with Ontology-based annotation Roaming support of wireless component communication Switching support of component communication using network processors

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Ubiquitous component remoting support on overlay network l.jpg
Ubiquitous Component Remoting Support on Overlay Network

  • Adaptation support with Ontology-based annotation

  • Roaming support of wireless component communication

  • Switching support of component communication using network processors

  • Streaming support of component communication for multimedia applications

  • Transcoding support (On-going)


Component remoting technology map l.jpg

Component Remoting Technology Map

Component Remoting Technology Map


Switching support of component communication using network processors l.jpg
Switching support of component communication using network processors

  • Switching mechanism supports Remote Object Invocation, .Net Remoting and Java RMI.

  • The switching mechanism is implemented on IXP1200.

  • Porting the switching mechanism to IXP2400.

  • Future work: Parsing header, transcoding


Hardware comparison l.jpg
Hardware comparison processors

porting


Next neighbor register l.jpg
Next Neighbor Register processors

  • Two mode of NNR:

    • Date can be read by next ME (ex. ME0:0 write data into a NNR, ME0:1 can read data from its NNR. )

    • Use as extra GPR

  • NNR are useful when two pipeline stages are communicating.

ME Cluster 0

ME 0:0

ME 0:1

ME 0:2

ME 0:3

ME Cluster 1

ME 1:0

ME 1:1

ME 1:2

ME 1:3


Behavior of packet receiving l.jpg

Metadata of packet processors

Behavior of Packet Receiving

64Byte

  • Divide packet into mpackets

  • Store Mpackets into DRAM

  • Gather metadata from Mpacket

0

64

149

DRAM

SOP

EOP

Metadata format

dl_buf_handle //The current buffer containing SOP

dl_eop_buf_handle // for large packets, the buffer

containing EOP.

input port // port from which the packet is rxed

ScratchPad RAM


Scratch ring l.jpg

Ring Descriptors processors

head

tail

0

1

base

2

Size=128

15

Scratch Ring

Scratchpad RAM

SRAM

Ring data

Size = 128


Blueprint l.jpg
Blueprint processors

StrongARM

Linux

TCP/IP

Stack

Stack

ACE

  • Ingress: one thread to receive packets from one 100 Mbps Ethernet port

  • Egress: a scheduler thread loads the packets from the packet queues of each port in round-robin fashion

  • L2 Bridge: relays and filters frames

  • L3 Forwarder: forwards packets based on a forwarding table

  • Stack ACE: allows I/O to and from the TCP/IP stacks and ACEs

  • Load Balancer: distributing requests to servers according to servers’ load

Ingress

ACE

L2

Bridge

Load

Balancer

L3

Forwarder

Egress

ACE

Resource Manager

ME 1

L2

LB

L3

ME 2

ME 0

L2

LB

L3

ME 5

Ingress

Microcode

Egress

Microcode

ME 3

L2

LB

L3

ME 4

L2

LB

L3


New blueprint for ixp2400 microengine l.jpg

ME 0:1 processors

ME 0:3

ME 0:2

De-capsulate

De-capsulate

De-capsulate

Forward

Forward

Forward

Load-balancer

Load-balancer

Load-balancer

ME 1:3

ME 1:2

ME 0:0

ME 1:0

ME 1:1

Packet Tx Microcode

Packet Rx

Microcode

Packet QM

Microcode

Packet

Scheduler

Microcode

Packet Tx Microcode

New Blueprint for IXP2400(Microengine)

Communication with

Core components

Use Neighbor

Register


Progress l.jpg
Progress processors

  • What is done

    • Microcode

    • New blueprint of switching mechanism on IXP2400

  • Todo

    • Core component

    • Performance measure