Specifications

Chapter 2 Maximizing Throughput on the ASA 5580
Optimizing Performance
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Cisco ASA 5580 Getting Started Guide
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Figure 2-4 2-Port 10-Gigabit Ethernet Fiber PCI Card
• 4-Port Gigabit Ethernet Fiber PCI card
Provides four 10000BASE-SX (fiber) interfaces (allowing up to 24 total
Gigabit Ethernet fiber interfaces in a fully populated chassis).
The card ports require a multi-mode fiber cable with an LC connector to
connect to the SX interface of the sensor.
Optimizing Performance
To maximize traffic throughput, ensure that the traffic flow and the hardware
configuration of the adaptive security appliance matches the following guidelines:
• Ideal performance is achieved when traffic enters and exits ports on the same
adapter or ports on adapters serviced by the same I/O bridge.
The ASA 5580 has two I/O bridges and the I/O slots connect to one of the two
I/O bridges. The adapters in slot 3, slot 4, slot 5, and slot 6 are on one I/O
bridge and slot 7 and slot 8 are on the other I/O bridge.
The optimal performance will be achieved if traffic does not traverse both I/O
bridges. Specifically, the traffic should flow between ports on adapters on the
same bus.
Configure traffic to traverse the ports on the adapters in slot 7 and 8 for
optimal performance for that traffic. Configure traffic to remain on ports on
adapters in slots 3 through 6. See
Figure 2-5 for an example of traffic
configured to traverse ports on slot 7 and slot 8 on the high-capacity I/O
bridge (PCIe x8).
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