OSPF Neighbor  trouble shoot =====================

Interview questions Nexus ======== Two tier  vs three  tier architecture  STP in Nexus Switching ============ VTP modes MAC address flap Switch upgrade process STP Ether channel HSRP Routing ========= BGP - Dual ISP configuration…

VTP ======= VTP domain VTP revision Client Server Transperant STP ===== Step1 ======= Root bridge selection-Least bridge id prefered  if tie lowest MAC address Default priority value is 32768 Step2 ========== Selecting root port …

The following table lists some of the common VPN error messages that are logged in the system log. Table: Syslog Error Messages for VPN Issues Error you recieved Try this solution IKE phase-1 negotiation is failed as initiator, …

Introduction  Cisco ISE has introduced almost 4 years ago. However, most organizations not utilizing their features completely. What is Cisco ISE: Basically, Cisco ISE is an NAC(network access control)solution where this has the …