Cisco Systems 5580, ASA5585S60P60SK9 Maximizing Throughput, Slots 7, Slots 3, 4, 5, I/O Bridge

3Maximizing Throughput

Refer to the following illustration when planning your network for maximum throughput.

Slot 9 (Reserved) Slots 1, 2 (Reserved)

PCI-E x4	PCI-E x8		PCI-E x4	PCI-E x8		PCI-E x4	PCI-X 100 MHz
9	8	7	6	5	4	3	2	1
Slots 7, 8								Slots 3, 4, 5, 6,
(I/O Bridge 2)								Management Ifcs
								(I/O Bridge 1)

Slots 5, 7, 8 (High Capacity Bus,	Slots 3, 4, 6 (Normal Capacity Bus,
PCI Express x8 non-hot-plug)	PCI Express x4 non-hot-plug)

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•You should use the high-capacity bus slots (5, 7, 8) for 10-Gigabit Ethernet adapters; other adapters can be placed in any slot.

•Distribute traffic on the I/O bridges using the following best practices:

–Have equal amounts of traffic on both I/O bridges.

–Keep traffic flow within the same I/O bridge.

For example, the ideal traffic distribution would be:

a.Half the traffic stays on slots 7 and 8.

b.The other half of the traffic stays on slots 3 through 6.

Steps a and b achieve both best practices above. If you cannot achieve both practices, then you should prefer the first best practice: have equal amounts of traffic on both I/O bridges.

See the Hardware Installation Guide for more information about maximizing throughput on the ASA 5580.

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