Hi I have a WS-C4500X-32  at my core connected to 3 WAN routers 2 x C2911 and 1 x C2811 running EIGRP. All four devices form adjacency with each other via a dedicated vlan on the WS-C4500X.Today the WS-C4500X lost adjacency with all three routers, ho...

HiI'm planning on redesigning our WAN network. Currently hub and spoke with a mixture of 10mbs, 20mbs, 100mbs and 1G with layer 1 and layer 2 links. Some are true layer1 with just piece of fiber between the sites others peering with the carrier is at...