Maximizing Throughput - Cisco ASA 5580 Quick Start Manual

3

Maximizing Throughput

Refer to the following illustration when planning your network for maximum throughput.
Slot 9 (Reserved)
PCI-E x4
Slots 7, 8
(I/O Bridge 2)
Slots 5, 7, 8 (High Capacity Bus,
PCI Express x8 non-hot-plug)
• 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.
4
PCI-E x8 PCI-E x4 PCI-E x8
9 8 7 6
Slots 1, 2 (Reserved)
PCI-E x4 PCI-X 100 MHz
5 4 3 2
Slots 3, 4, 6 (Normal Capacity Bus,
PCI Express x4 non-hot-plug)
1
Slots 3, 4, 5, 6,
Management Ifcs
(I/O Bridge 1)