topic Re: Does the ASA's failover interface work at 1000/Full Duplex? in Network Security https://community.cisco.com/t5/network-security/does-the-asa-s-failover-interface-work-at-1000-full-duplex/m-p/843373#M421195 <HTML><HEAD></HEAD><BODY><P>I am running Active/Passive on my ASAs right now, this is the only configuration that I needed on my primary unit for the FO interface, I never had to set the interface link speed.</P><P></P><P>interface GigabitEthernet0/3</P><P>description LAN/STATE Failover Interface</P><P></P><P>failover</P><P>failover lan unit primary</P><P>failover lan interface FOLink GigabitEthernet0/3</P><P>failover replication http</P><P>failover link FOLink GigabitEthernet0/3</P><P>failover interface ip FOLink 192.168.100.1 255.255.255.0 standby 192.168.100.2</P></BODY></HTML> Thu, 01 Nov 2007 12:12:52 GMT conversyschris 2007-11-01T12:12:52Z Does the ASA's failover interface work at 1000/Full Duplex? https://community.cisco.com/t5/network-security/does-the-asa-s-failover-interface-work-at-1000-full-duplex/m-p/843371#M421193 <P>I was once told that the speed had to be set to 100Mbs on the Failover link when using LAN based failover on a Gig switchport.</P> Fri, 21 Feb 2020 09:45:32 GMT https://community.cisco.com/t5/network-security/does-the-asa-s-failover-interface-work-at-1000-full-duplex/m-p/843371#M421193 MSS Operations 2020-02-21T09:45:32Z Re: Does the ASA's failover interface work at 1000/Full Duplex? https://community.cisco.com/t5/network-security/does-the-asa-s-failover-interface-work-at-1000-full-duplex/m-p/843372#M421194 <HTML><HEAD></HEAD><BODY><P>Hi </P><P></P><P>I am not aware of any such restriction and the recommendation from Cisco is to use an interface that is running at the same speed as your data interfaces for failover. Are you proposing to use stateful failover ?</P><P></P><P>HTH</P><P></P><P>Jon</P></BODY></HTML> Thu, 01 Nov 2007 12:11:29 GMT https://community.cisco.com/t5/network-security/does-the-asa-s-failover-interface-work-at-1000-full-duplex/m-p/843372#M421194 Jon Marshall 2007-11-01T12:11:29Z Re: Does the ASA's failover interface work at 1000/Full Duplex? https://community.cisco.com/t5/network-security/does-the-asa-s-failover-interface-work-at-1000-full-duplex/m-p/843373#M421195 <HTML><HEAD></HEAD><BODY><P>I am running Active/Passive on my ASAs right now, this is the only configuration that I needed on my primary unit for the FO interface, I never had to set the interface link speed.</P><P></P><P>interface GigabitEthernet0/3</P><P>description LAN/STATE Failover Interface</P><P></P><P>failover</P><P>failover lan unit primary</P><P>failover lan interface FOLink GigabitEthernet0/3</P><P>failover replication http</P><P>failover link FOLink GigabitEthernet0/3</P><P>failover interface ip FOLink 192.168.100.1 255.255.255.0 standby 192.168.100.2</P></BODY></HTML> Thu, 01 Nov 2007 12:12:52 GMT https://community.cisco.com/t5/network-security/does-the-asa-s-failover-interface-work-at-1000-full-duplex/m-p/843373#M421195 conversyschris 2007-11-01T12:12:52Z