Hello, I tryed migrate for TFTP Server from CME to CUCM 8.6(2). IP-Phone 7970 Regist Success when I try to register the IP-Phone that has been registered in the old CME to the CUCM. IP-Phone's Firmware is Migrate to Firmware Release 9.2(3). But, Regi...

Hello. I'm a network administrator in my company.I have a question about HSRP "Split Brain" on the STP Topology.verifying to HSRP Down Time that attached network topology.Trying "ICMP Ping" from PC to HSRP Virtual IP.I have found unexpected senario. ...