https://community.cisco.com/t5/network-security/ftd-2110-v6-6-interface-bouncing-isp-or-ftd/m-p/4492914#M1084628 <P>Our external interface (1/1), is bouncing/disconnecting.</P><P>&nbsp;</P><P>How can I monitor the interface through the CLI to look for errors?</P><P>I have run the "show interface g1/1 stats" (and other options), but I don't see CRC errors, or other errors.</P><P>-newbiftd</P> Tue, 26 Oct 2021 18:11:29 GMT newbieftd 2021-10-26T18:11:29Z https://community.cisco.com/t5/network-security/ftd-2110-v6-6-interface-bouncing-isp-or-ftd/m-p/4492914#M1084628 <P>Our external interface (1/1), is bouncing/disconnecting.</P><P>&nbsp;</P><P>How can I monitor the interface through the CLI to look for errors?</P><P>I have run the "show interface g1/1 stats" (and other options), but I don't see CRC errors, or other errors.</P><P>-newbiftd</P> Tue, 26 Oct 2021 18:11:29 GMT https://community.cisco.com/t5/network-security/ftd-2110-v6-6-interface-bouncing-isp-or-ftd/m-p/4492914#M1084628 newbieftd 2021-10-26T18:11:29Z https://community.cisco.com/t5/network-security/ftd-2110-v6-6-interface-bouncing-isp-or-ftd/m-p/4492964#M1084629 <P>is this directly connected to ISP, if so suggest to take small switch and add between ISP and FTD and observe ?</P> <P>&nbsp;</P> Tue, 26 Oct 2021 19:45:53 GMT https://community.cisco.com/t5/network-security/ftd-2110-v6-6-interface-bouncing-isp-or-ftd/m-p/4492964#M1084629 balaji.bandi 2021-10-26T19:45:53Z https://community.cisco.com/t5/network-security/ftd-2110-v6-6-interface-bouncing-isp-or-ftd/m-p/4492974#M1084630 FTD is directly connected to ISP router.<BR />ISP says they are not seeing any errors, but I wany to check via the FTD. Switch would help me to capture, but it is so random. I'd like to see stats like CRC, retries, utilization, .....<BR /><BR /> Tue, 26 Oct 2021 20:08:33 GMT https://community.cisco.com/t5/network-security/ftd-2110-v6-6-interface-bouncing-isp-or-ftd/m-p/4492974#M1084630 newbieftd 2021-10-26T20:08:33Z