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True Peer-to-Peer Support<br />
Root<br />
Complex<br />
Root<br />
Complex<br />
End<br />
Point<br />
<strong>Switch</strong><br />
End<br />
Point<br />
End<br />
Point<br />
Other PCIe<br />
<strong>Switch</strong>es<br />
End<br />
Point<br />
End<br />
End<br />
Point<br />
Point<br />
‣ <strong>PLX</strong> PCIe <strong>Switch</strong>es<br />
• Simultaneous Transactions<br />
• No host involvement<br />
• Reduced latency<br />
• Enhanced CPU Performance<br />
• Optimized Peer-to-Peer<br />
Bandwidth/Performance<br />
End<br />
End<br />
Point<br />
Point<br />
‣ Other PCIe <strong>Switch</strong>es<br />
• Claim Peer-to-Peer…but…<br />
• No Simultaneous Transactions<br />
• May require host-support<br />
• Added latency<br />
• Reduced CPU Performance<br />
• Bandwidth/Performance impact<br />
for Peer-to-Peer traffic<br />
© <strong>PLX</strong> Aug 2007 18
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