The clock on the wall of Lab 3B read 11:47 PM. Thirteen minutes to save his grade. Leo’s eyes, dry and aching, darted between the glowing topology on his screen and the cryptic lines of his lab instructions.
Port Gig0/1, where R4 was connected, was in VLAN 1. But the trunk port connecting this switch to the rest of the topology was allowing VLANs 10, 20, and 30. Not VLAN 1. cisco packet tracer exercises
Neighbor ID Pri State Dead Time Address 10.0.1.1 1 FULL/DR 00:00:37 10.0.14.1 The clock on the wall of Lab 3B read 11:47 PM
He saved the Packet Tracer file— Leone_Final_OSPF_Fixed.pkt —and uploaded it with two minutes to spare. As he shut his laptop, he looked at the topology one last time. The little green triangles next to each router link now glowed solid, and the packets flowed between Chicago, Dallas, Atlanta, and Seattle like digital blood through a revived body. Port Gig0/1, where R4 was connected, was in VLAN 1
Leo double-clicked the switch connecting R4 to the rest of the world, a humble 2960 model. He ran a quick show vlan brief . His heart stopped.
A small victory: the command took. But still, no hello packets. No DR election. Just a cold, digital void.