I connect my laptop through company LAN, i got my laptop private ip and public ip, also private ip of my dns server.   is it able to get public ip of my dns without logging to firewall to check?   also how to check whether i'm in VPN or not in VPN? thanks   ... View more

we attach ESXi to our ACI fabric, but ACI didn't discover the ESXi and UCS server B series. since UCS B series use CDP rather than LLDP, so do we need to enable CDP in ACI or we need to maintain CDP in our DVS? ... View more

I enter wrong parameter during apic controller initiation and wrongly press enter for continue, currently when i launch kvm in cimc, I try to enter previous admin user name/password, but can't login, may i know the recovery steps and command to initiate the apic controller second time. thanks ... View more

I have one Nexus 7k, vlan 200 SVI ip 192.168.1.1, it have two ebgp neighbor 192.168.1.2 and 192.168.1.3. (both vlan encap 200 in ACI, bgp peer connectivity profile , node profile and BGP interface profile are defined).   my Nexus expected to receive ten routes from 192.168.1.2 and 192.168.1.3 each. but now when i use sh ip bgp summ, the last column "stat/prefix received" for 192.168.1.2 is 10, but showing "Active" for 192.168.1.3.   after ten minutes, the column"Stat/prefix" for 192.168.1.2 is "Active" and 10 for 192.168.1.3, I further check switch profile and interface port profile, they are all assigned to the right switch and ports, I delete port selector and add again, the issue still same. why bgp neighbor flapping? thanks   ... View more

I have epg1 and epg2 in the same tenant A, I want epg1 and epg2 can communicate, thus i define subnet for bd1 and bd2   I have epg3 in another tenantB, I want epg3 can communicate with epg2, so I set up bd subnet for epg3 and create contract between epg3 and epg2   Is the above setting complete or i miss any points? thanks   ... View more

I'm now in the window of APIC gui interface, how to enter into apic command line mode from the GUI? is it possible?  ... View more

I have two Wan circuit, we didn't run bgp on the gateway, we only run ospf, so how to configure the gateway active/standby failover? Thanks ... View more

For route summarizaition, what are the difference between Ngo route summarization,rigorous summarization,ospf summarization?thanks ... View more

I don't have f5 and other load balancer, how to use router and switch to simulate load balancing? Thanks ... View more

i made change in asa access rule policy, now some problem happen, may i know the steps to revert to the last policy version in live production server? thanks ... View more