topic Re: ASA does not support connecting an EtherChannel to a switch stack.? in Network Security https://community.cisco.com/t5/network-security/asa-does-not-support-connecting-an-etherchannel-to-a-switch/m-p/3820613#M31321 <P>A stack is one logical switch and the Etherchannel should work with both switches in a stack as well as one or the other. I've connected them successfully like that before. No VSS is needed.</P> Sat, 16 Mar 2019 12:24:35 GMT Marvin Rhoads 2019-03-16T12:24:35Z ASA does not support connecting an EtherChannel to a switch stack.? https://community.cisco.com/t5/network-security/asa-does-not-support-connecting-an-etherchannel-to-a-switch/m-p/3820573#M31317 <P><A href="https://www.cisco.com/c/en/us/td/docs/security/asa/asa90/configuration/guide/asa_90_cli_config/interface_start.html#34996" target="_blank" rel="noopener">https://www.cisco.com/c/en/us/td/docs/security/asa/asa90/configuration/guide/asa_90_cli_config/interface_start.html#34996</A></P> <P>&nbsp;</P> <P>The ASA does not support connecting an EtherChannel to a switch stack. If the ASA EtherChannel is connected cross stack, and if the Master switch is powered down, then the EtherChannel connected to the remaining switch will not come up.</P> <P>&nbsp;</P> <P>Colleagues,</P> <P>Can somebody explain this?</P> <P>What in means?</P> <P>If I have ASA 5515x and switch stack 2 pieces&nbsp; &nbsp;3750 or 3850,</P> <P>I can not connect ASA G0/1&nbsp; &nbsp;to switch1 G1/0/1 and ASA G0/2&nbsp; to switch2 G2/0/1 ?</P> <P>only VSS supported ?</P> <P>&nbsp;</P> Sat, 16 Mar 2019 09:05:42 GMT https://community.cisco.com/t5/network-security/asa-does-not-support-connecting-an-etherchannel-to-a-switch/m-p/3820573#M31317 Tagir Temirgaliyev 2019-03-16T09:05:42Z Re: ASA does not support connecting an EtherChannel to a switch stack.? https://community.cisco.com/t5/network-security/asa-does-not-support-connecting-an-etherchannel-to-a-switch/m-p/3820613#M31321 <P>A stack is one logical switch and the Etherchannel should work with both switches in a stack as well as one or the other. I've connected them successfully like that before. No VSS is needed.</P> Sat, 16 Mar 2019 12:24:35 GMT https://community.cisco.com/t5/network-security/asa-does-not-support-connecting-an-etherchannel-to-a-switch/m-p/3820613#M31321 Marvin Rhoads 2019-03-16T12:24:35Z