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Updated:August 17, 2022
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This document describes the Embedded Packet Capture (EPC) feature in Cisco IOS® software.
There are no specific requirements for this document.
The information in this document is based on these software and hardware versions:
Cisco IOS Release 12.4(20)T or later
Cisco IOS XE® Release 15.2(4)S - 3.7.0 or later
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, ensure that you understand the potential impact of any command.
When enabled, the router captures the sent and received packets. The packets are stored within a buffer in DRAM and do not persist through a reload. Once the data is captured, it can be examined in a summary or detailed view on the router.
In addition, the data can be exported as a packet capture (PCAP) file to allow for further examination. The tool is configured in exec mode and is considered a temporary assistance tool. As a result, the tool configuration is not stored within the router configuration and does not remain in place after a system reload.