Valid JN0-649 Dumps shared by ExamDiscuss.com for Helping Passing JN0-649 Exam! ExamDiscuss.com now offer the newest JN0-649 exam dumps, the ExamDiscuss.com JN0-649 exam questions have been updated and answers have been corrected get the newest ExamDiscuss.com JN0-649 dumps with Test Engine here:
Remote branches connect to the corporate WAN through access switches. The access switches connect to access ports on the WAN distribution switch, as shown in the exhibit. L2PT has previously been configured on the tunnel Layer 2 traffic across the WAN. You decide to move the L2PT tunnel endpoints to the access switches. When you apply the L2PT configuration to the access switches, the ports that connect the access switches to the distribution switch shut down. Which action would solve this problem?
Correct Answer: A
* Understanding the Problem: * The ports between the access switches and the distribution switch are shutting down when the L2PT configuration is applied. This typically happens due to a mismatch in port configurations or protocol incompatibilities. * Examining the Configurations: * L2PT (Layer 2 Protocol Tunneling) allows tunneling of Layer 2 traffic, which includes protocols like STP (Spanning Tree Protocol), CDP (Cisco Discovery Protocol), VTP (VLAN Trunking Protocol), etc. over a Layer 2 network. * If the L2PT is applied on access ports, it may lead to conflicts or shut down the ports as access ports are typically not configured to handle Layer 2 protocol traffic beyond their designated VLAN. * Solution: Configure Trunk Ports: * By configuring the links between the access switches and the distribution switch as trunk ports, you allow multiple VLANs to be carried over a single physical link. Trunk ports can carry tagged traffic for multiple VLANs, which includes the tunneled Layer 2 protocols. * This setup prevents the ports from shutting down and enables the correct tunneling of Layer 2 protocols. References: * Juniper Documentation on L2PT Configuration * Troubleshooting Layer 2 Protocol Tunneling Issues
