topic Re: APIC not discovering some hosts in Controllers https://community.cisco.com/t5/controllers/apic-not-discovering-some-hosts/m-p/3526330#M1285 <HTML><HEAD></HEAD><BODY><P>It sounds like you need IPDT enabled on all of the devices.</P><P><A href="https://www.cisco.com/c/en/us/support/docs/ip/address-resolution-protocol-arp/118630-technote-ipdt-00.html" title="https://www.cisco.com/c/en/us/support/docs/ip/address-resolution-protocol-arp/118630-technote-ipdt-00.html">IP Device Tracking (IPDT) Overview - Cisco</A></P></BODY></HTML> Wed, 20 Sep 2017 17:10:34 GMT ngoldwat 2017-09-20T17:10:34Z APIC not discovering some hosts https://community.cisco.com/t5/controllers/apic-not-discovering-some-hosts/m-p/3526329#M1284 <HTML><HEAD></HEAD><BODY><P>Hi</P><P></P><P>I did read one of the previous posts where EM do not discover wired endpoints.&nbsp; I did look at the articles and suggestions posted and verified the environment my controller is installed in.</P><P></P><P>I have a slightly different issue here.&nbsp; This is a multi vrf environment which is the first bit of complexity (need to sort out some routing here).&nbsp; Then on the vrf that the controller is installed in, it would only discover some of the connected devices.&nbsp; The client runs ipt with most of the phones being detected but not all the PCs.&nbsp; </P><P></P><P>The access layer is mostly c3750 stacks.&nbsp; These connect to a pair of N7K core switches.&nbsp; these, in turn, connects to a pair of N5K switches that the servers connect to.&nbsp; </P><P></P><P>Besides the limited discovery in the access layer, I do not see a single device that connects to the N5Ks (data center)</P><P></P><P>Could anyone give me some advice here?</P><P></P><P>PS. I am running APIC-EM Version 1.4.3.1009.</P><P></P><P>Thanks in advance</P></BODY></HTML> Fri, 01 Mar 2019 12:40:39 GMT https://community.cisco.com/t5/controllers/apic-not-discovering-some-hosts/m-p/3526329#M1284 Kobus Raath 2019-03-01T12:40:39Z Re: APIC not discovering some hosts https://community.cisco.com/t5/controllers/apic-not-discovering-some-hosts/m-p/3526330#M1285 <HTML><HEAD></HEAD><BODY><P>It sounds like you need IPDT enabled on all of the devices.</P><P><A href="https://www.cisco.com/c/en/us/support/docs/ip/address-resolution-protocol-arp/118630-technote-ipdt-00.html" title="https://www.cisco.com/c/en/us/support/docs/ip/address-resolution-protocol-arp/118630-technote-ipdt-00.html">IP Device Tracking (IPDT) Overview - Cisco</A></P></BODY></HTML> Wed, 20 Sep 2017 17:10:34 GMT https://community.cisco.com/t5/controllers/apic-not-discovering-some-hosts/m-p/3526330#M1285 ngoldwat 2017-09-20T17:10:34Z