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Cisco Systems IPS4520K9 ASA 5500-X IPS SSP and Memory Usage, ASA 5500-X IPS SSP and Jumbo Packets

Models: IPS4520K9

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Appendix E Troubleshooting

Troubleshooting the ASA 5500-X IPS SSP

The ASA 5500-X IPS SSP and Memory Usage

For the ASA 5500-X IPS SSP, the memory usage is 93%. The default health thresholds for the sensor are 80% for yellow and 91% for red, so the sensor health will be shown as red on these platforms even for normal operating conditions. You can tune the threshold percentage for memory usage so that it reads more accurately for these platforms by configuring the Memory Usage option in the sensor health metrics.

Note Make sure you have the Memory Usage option in the sensor health metrics enabled.

Table E-3lists the Yellow Threshold and the Red Threshold health values.

Table E-3

ASA 5500-X IPS SSP Memory Usage Values

 

 

 

 

 

Platform

 

Yellow

Red

Memory Used

 

 

 

 

ASA 5512-X IPS SSP

85%

91%

28%

 

 

 

 

ASA 5515-X IPS SSP

88%

92%

14%

 

 

 

 

ASA 5525-X IPS SSP

88%

92%

14%

 

 

 

 

ASA 5545-X IPS SSP

93%

96%

13%

 

 

 

 

ASA 5555-X IPS SSP

95%

98%

17%

 

 

 

 

 

The ASA 5500-X IPS SSP and Jumbo Packet Frame Size

Refer to the following URL for information about ASA 5500-X IPS SSP jumbo packet frame size:

http://www.cisco.com/en/US/docs/security/asa/asa84/configuration/guide/interface_start.html#wp1328 869

Note A jumbo frame is an Ethernet packet that is larger than the standard maximum of 1518 bytes (including Layer 2 header and FCS).

The ASA 5500-X IPS SSP and Jumbo Packets

The jumbo packet count in the show interface command output from the lines Total Jumbo Packets Received and Total Jumbo Packets Transmitted for ASA IPS modules may be larger than expected due to some packets that were almost jumbo size on the wire being counted as jumbo size by the IPS.

This miscount is a result of header bytes added to the packet by the ASA before the packet is transmitted to the IPS. For IPv4, 58 bytes of header data are added. For IPv6, 78 bytes of header data are added. The ASA removes the added IPS header before the packet leaves the ASA.

 

 

Cisco Intrusion Prevention System Appliance and Module Installation Guide for IPS 7.1

 

 

 

 

 

 

 

OL-24002-01

 

 

E-73

 

 

 

 

 

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Cisco Systems IPS4520K9 manual ASA 5500-X IPS SSP and Memory Usage, ASA 5500-X IPS SSP and Jumbo Packet Frame Size
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IPS4520K9 specifications

Cisco Systems has long been a leading player in network security, and its IPS (Intrusion Prevention System) series is a testament to its commitment to safeguarding digital environments. Among its notable offerings are the IPS4510K9 and IPS4520K9 models, both designed to provide advanced threat protection for mid-sized to large enterprise networks.

The Cisco IPS4510K9 and IPS4520K9 are distinguished by their cutting-edge features that help organizations defend against a myriad of cyber threats. These systems utilize a multi-layered approach to security, integrating intrusion prevention, advanced malware protection, and comprehensive visibility across the network.

One of the primary characteristics of the IPS4510K9 is its high performance. It boasts a throughput of up to 1 Gbps, making it suitable for environments that demand rapid data processing and real-time responses to threats. The IPS4520K9, on the other hand, enhances that capability with improved throughput of up to 2 Gbps, accommodating larger enterprises with heavier network traffic. These models are equipped with powerful processors that support complex signature matching and can intelligently distinguish between legitimate traffic and potential threats.

In addition to performance, both models are designed with scalability in mind. They can be easily integrated into existing Cisco infrastructures. This facilitates a seamless enhancement of security without causing significant interruptions to ongoing operations. Moreover, they offer flexible deployment options, allowing organizations to operate them inline or out of band depending on their specific needs.

The Cisco IPS4510K9 and IPS4520K9 leverage advanced detection technologies, utilizing a variety of signature types and heuristic analysis to detect known and unknown threats effectively. They are equipped with real-time alerting and reporting capabilities, giving security teams immediate visibility into potential breaches and enabling them to respond swiftly.

Furthermore, both models support a range of management options through the Cisco Security Manager, allowing for centralized administration, streamlined policy management, and enhanced monitoring capabilities. Automated updates ensure the systems remain current with the latest threat intelligence, vital for staying ahead of evolving cyber threats.

In summary, the Cisco Systems IPS4510K9 and IPS4520K9 represent powerful solutions for organizations seeking robust intrusion prevention capabilities. With their high performance, scalability, and advanced detection technologies, these systems are essential tools in the ever-changing landscape of cybersecurity, providing enterprises with the peace of mind needed to operate securely in today's digital world.