topic Re: 40G ports flap in PA 3430 in Next-Generation Firewall Discussions https://live.paloaltonetworks.com/t5/next-generation-firewall/40g-ports-flap-in-pa-3430/m-p/995607#M5110 <BLOCKQUOTE><HR /><a href="https://live.paloaltonetworks.com/t5/user/viewprofilepage/user-id/290584795">@M.M578004</a>&nbsp;wrote:<BR /><P>Hi,&nbsp;</P><P>&nbsp;</P><P>We are facing uplink issues between PA 3430 40G to Cisco Cat 9407R VSS.</P><P>&nbsp;</P><DIV>Cisco side&nbsp; QSFP-40G-SR-BD, CISCO-AVAGO,&nbsp;Cisco part number - 10-2945-02</DIV><DIV>PA side - Vendor Name: AVAGO, Vendor Part Number: AFBR-79EBMZ</DIV><DIV>&nbsp;</DIV><P>Tried the below,</P><DIV>Kept one single port in port channel and tried</DIV><DIV>Tried with Active, passive, slow and fast from PA, same active and passive from Cisco side</DIV><DIV>Failed over firewall and tested</DIV><DIV>Changed the ports, transceivers and cables, tried in 40G and 100G ports as well in Cisco</DIV><DIV>Used Cisco BIDI transceivers on both PA and Cisco side and tested</DIV><DIV>Changed the SR4 transceivers and used MPO cables on both PA and Cisco side</DIV><DIV>&nbsp;</DIV><DIV>still the flap happens. Please let me know any one faced the same issue or the fix you applied.</DIV><DIV>&nbsp;</DIV><DIV>Thank You.</DIV><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><HR /></BLOCKQUOTE><P>Given the persistent issue, consider cable integrity, transceiver compatibility, port channel configuration, physical layer diagnostics, software version compatibility, and environmental factors. Consult vendor support and involve a network expert for further diagnosis and resolution.</P> Thu, 28 Nov 2024 09:23:22 GMT esteban78 2024-11-28T09:23:22Z 40G ports flap in PA 3430 https://live.paloaltonetworks.com/t5/next-generation-firewall/40g-ports-flap-in-pa-3430/m-p/995573#M5108 <P>Hi,&nbsp;</P> <P>&nbsp;</P> <P>We are facing uplink issues between PA 3430 40G to Cisco Cat 9407R VSS.</P> <P>&nbsp;</P> <DIV>Cisco side&nbsp; QSFP-40G-SR-BD, CISCO-AVAGO,&nbsp;Cisco part number - 10-2945-02</DIV> <DIV>PA side - Vendor Name: AVAGO, Vendor Part Number: AFBR-79EBMZ</DIV> <DIV>&nbsp;</DIV> <P>Tried the below,</P> <DIV>Kept one single port in port channel and tried</DIV> <DIV>Tried with Active, passive, slow and fast from PA, same active and passive from Cisco side</DIV> <DIV>Failed over firewall and tested</DIV> <DIV>Changed the ports, transceivers and cables, tried in 40G and 100G ports as well in Cisco</DIV> <DIV>Used Cisco BIDI transceivers on both PA and Cisco side and tested</DIV> <DIV>Changed the SR4 transceivers and used MPO cables on both PA and Cisco side</DIV> <DIV>&nbsp;</DIV> <DIV>still the flap happens. Please let me know any one faced the same issue or the fix you applied.</DIV> <DIV>&nbsp;</DIV> <DIV>Thank You.</DIV> <P>&nbsp;</P> <P>&nbsp;</P> <P>&nbsp;</P> <P>&nbsp;</P> Thu, 28 Nov 2024 04:10:58 GMT https://live.paloaltonetworks.com/t5/next-generation-firewall/40g-ports-flap-in-pa-3430/m-p/995573#M5108 M.M578004 2024-11-28T04:10:58Z Re: 40G ports flap in PA 3430 https://live.paloaltonetworks.com/t5/next-generation-firewall/40g-ports-flap-in-pa-3430/m-p/995607#M5110 <BLOCKQUOTE><HR /><a href="https://live.paloaltonetworks.com/t5/user/viewprofilepage/user-id/290584795">@M.M578004</a>&nbsp;wrote:<BR /><P>Hi,&nbsp;</P><P>&nbsp;</P><P>We are facing uplink issues between PA 3430 40G to Cisco Cat 9407R VSS.</P><P>&nbsp;</P><DIV>Cisco side&nbsp; QSFP-40G-SR-BD, CISCO-AVAGO,&nbsp;Cisco part number - 10-2945-02</DIV><DIV>PA side - Vendor Name: AVAGO, Vendor Part Number: AFBR-79EBMZ</DIV><DIV>&nbsp;</DIV><P>Tried the below,</P><DIV>Kept one single port in port channel and tried</DIV><DIV>Tried with Active, passive, slow and fast from PA, same active and passive from Cisco side</DIV><DIV>Failed over firewall and tested</DIV><DIV>Changed the ports, transceivers and cables, tried in 40G and 100G ports as well in Cisco</DIV><DIV>Used Cisco BIDI transceivers on both PA and Cisco side and tested</DIV><DIV>Changed the SR4 transceivers and used MPO cables on both PA and Cisco side</DIV><DIV>&nbsp;</DIV><DIV>still the flap happens. Please let me know any one faced the same issue or the fix you applied.</DIV><DIV>&nbsp;</DIV><DIV>Thank You.</DIV><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P><HR /></BLOCKQUOTE><P>Given the persistent issue, consider cable integrity, transceiver compatibility, port channel configuration, physical layer diagnostics, software version compatibility, and environmental factors. Consult vendor support and involve a network expert for further diagnosis and resolution.</P> Thu, 28 Nov 2024 09:23:22 GMT https://live.paloaltonetworks.com/t5/next-generation-firewall/40g-ports-flap-in-pa-3430/m-p/995607#M5110 esteban78 2024-11-28T09:23:22Z