I need to enable IP Telephony communication between two different networks(separate networks). but most of the IPs are overlapping for other services. how can I do it.

I am trying to replace my secondary firewall and iam getting error " no response from mate " I can ping the failover interfaces   ASA1---------------failoverfailover lan unit primaryfailover lan interface FOLINK TenGigabitEthernet0/9failover polltime...

We are getting below error on 3850 switch with Ios version 3.6.6E %ILPOWER-5-IEEE_DISCONNECT: Interface Gi1/0/1: PD removed%ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Gi1/0/1: Power Controller reports power Tstart error detecte...

The link connecting from ASR 9k to 7600 is going to udld error-disable state after connecting few seconds..The physical fiber is fine and we tested the same fiber from another ASR 9k too 7600.