[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] database STP reducing size debug commands Catalyst switches 2nd QoS 2nd switches troubleshooting default gateways failover protection delay issues (IP telephony) 2nd dense mode protocols multicast routing 2nd design issues campus intranets 2nd 3rd large campus 2nd medium campus 2nd small campus 2nd IP telephony 2nd telephony networks 2nd 3rd management strategy designated routers multicasting PIM (Protocol Independent Multicast) 2nd devices campus intranets Layer 2 switches 2nd 3rd Layer 3 switches 2nd multilayer switches routers 2nd 3rd usage recommendations 2nd chasis redundancy 2nd 3rd Differentiated Services Code Points (DSCPs) DiffServ architechure IP telephony 2nd 3rd disabled state (switch ports) distributed switching architecture) 2nd distribution layer 2nd distribution layer switches as root switches distribution trees multicasts 2nd shared distribution trees 2nd source-based distribution trees 2nd domains broadcasts and configuring VTP (VLAN Trunk Protocol) 2nd verifying configuration VTP (VLAN Trunk Protocol) 2nd VTP (VLAN Trunk Protocol) management domains 2nd DSCPs (Differentiated Services Code Points) DTP (Dynamic Trunk Protocol) principles of operation 2nd 3rd trunking modes dual-ring topology SONET DVS (directed VLAN services) MANs and 2nd 3rd 4th DWDM Ethernet over 2nd 3rd Dynamic Trunk Protocol. [See DTP] dynamic VLANs 2nd 3rd |