300-115 - Implementing Cisco IP Switched Networks - SWITCH

Explore basic network design concepts and Cisco enterprise campus architecture. Compare the advantages of hierarchical network design versus flat network designs.

Compare hierarchical campus design with flat switched networks. Hierarchical design creates separate broadcast domains and enables layer 3 ACLs, using access, distribution, and core layers for high-speed switching.

Explore how multi-layer switches combine layer 2 and layer 3 forwarding, using MAC-based CAM tables to map MAC addresses to ports, and extend with ACLs, QoS, and TCAMs.

The core layer separates the control plane from the data plane, with routing updates on the route processor and neighbor and IP routing tables guiding forwarding in the switching fabric.

Map Cisco switch models to network layers, aligning access, distribution, and core roles for business sizes, and explore layer two and layer three designs with spanning tree considerations.

Explore how layer 3 switches differ from layer 2 switches and examine the routing capabilities and forwarding tables that guide decisions on both devices.

Layer 2 switches use a CAM table to forward unicast frames and flood broadcasts within the local area network. They consult forwarding table, security ACLs, and QoS ACLs before forwarding.

Explore multilayer operation that blends layer 2 and layer 3 forwarding, using a layer 2 table and a layer 3 forwarding table, with mac addresses and cams guiding exit interfaces.

Explain how the control plane handles routing updates and neighbor and IP routing tables, while the data plane uses the forwarding table to switch data across the network.

Explore three Cisco switching methods—process switching, fast switching with route caching, and topology-based Cisco express forwarding—and how hardware forwarding delivers fastest performance.

Learn how Cisco switches allocate default resources and how to adjust them with SDM templates. Examine the active template on a device and tailor it for specific situations.

Explore how SDM templates control switch resource allocation and view the current and default templates. See how the desktop default template affects interfaces, MAC addresses, multicast groups, and routes.

Explore the SDM template types for Cisco switches, including default, routing, access, and dual IPv6 templates, and how they allocate resources for IPv4/IPv6 routing and layer 2 unicast.

Identify and change the SDM template to support IPv6, reboot to activate, and verify IPv6 unicast routing, while checking TEAC HIM utilization to justify the change.

Explore the differences between Cisco discovery protocol and the link layer discovery protocol, and learn how to enable it on Cisco devices.

Explore LLDP, a standards-based link-layer discovery protocol that unidirectionally advertises device identity and capabilities using TAAB format, contrasting with Cisco's CDP.

Explore how to use the show LDP neighbors command to discover and inspect neighbor devices, similar to CTP, and view chassis IDs, system names, software, and media details.

Explore how power over Ethernet operates and review the standards that govern its use today.

Explore power over ethernet (PoE) and how it delivers data and power over a single cable to devices like access points and IP phones.

Explore PoE standards on Cisco switches, from Cisco online power to 802.3af and PoE+, through handshake and class-based power negotiation that optimizes per-port power up to 50 watts.

Configure and verify power over ethernet on a switch interface with commands like power inline auto and static, and review show power inline outputs for module watts and per-port usage.

Review the plans and trucks, recap what you learned in cc a, and franks, and add extra topics for the cc empey exam.

Explore how VLANs create independent broadcast domains for segmentation and security on switches. Learn static and dynamic VLANs, including MAC-based membership via a policy server.

Learn how trunk configuration works between switches, including 802.1Q encapsulation, tagging frames with VLAN IDs, and ensuring native VLANs and allowed VLANs match on both ends.

Discover how DTP dynamic trunking protocols affect switch port mode decisions, and why Cisco recommends statically configuring trunks with switchport mode trunk to prevent traffic; verify with show interfaces switchport.

Deploying vlans across switches uses trunk links to keep user membership constant, while location-based vlans group users by site, simplifying troubleshooting, improving scalability, and making traffic flows predictable.

Configure the voice vlan on an access port to place IP phones in vlan 110 while data traffic remains on vlan 10, enabling prioritized voice over IP traffic.

Configure switches for wireless LAN by using autonomous access points with trunk connections to access switch, or lightweight access points with access ports to distribution and trunk to wireless controller.

Demonstrate VLANs on a switch by placing two hosts in separate VLANs, showing initial ping within the same subnet, then layer 2 isolation requiring routing for inter-VLAN communication.

Discover how a trunking protocol spans multiple switches from a central switch, and learn how it operates and how to configure it.

Explore how the VTP server creates VLANs and pushes them to switches in client mode over trunk links, and compare server, client, and transparent modes.

Understand VTP versions: default version 1, version 2 in transparent mode, and version 3 with extended private VLAN support. Use show VTB status and VTB version commands to configure.

Explore VTP revision numbers, how a higher revision on a client can overwrite the server and create orphan lands, and apply transparent mode with local lands and consistent passwords.

Demonstrates configuring vtp with a trunk between two switches, designating one as server and the other as client, sharing domain Cisco and vlan 20 and 30.

Set up dhcp on a router to provide ip address configurations to hosts on an interface, illustrating automated network configuration concepts.

Learn how DHCP provides IP configuration to clients via a four packet exchange—discover, offer, request, and ack—delivering IP address, subnet mask, and gateway from an external or Cisco IOS server.

Learn how a layer 3 switch uses an IP helper address on the client interface to forward DHCP requests to a server. It converts broadcasts to unicast and relays replies.

Explore configuring DHCP options like 53, 16, 70, and 150 to direct clients to specific servers, using a DHCP pool to assign these options and server addresses.

Demonstrates turning a Cisco router into a DHCP server by creating a pool named my_pool, defining the network and gateway, excluding the gateway address, and verifying a host lease.

Explore why enterprises migrate from IPv4 to IPv6 and examine DHCPv6, including how to configure IPv6 in stateless and stateful modes for devices.

Discover IPv6 stateless autoconfiguration, where a host uses EUI-64 and router advertisements to form a global address, generate a link-local address, join the multicast group, and set the default route.

Explore how DHCPv6 enables IPv6 autoconfiguration by obtaining a router prefix and address, supports dynamic DNS and uses solicit/advertise, request/confirm exchanges (rapid commit) to build a binding table.

Learn how stateless DHCPv6 provides DNS and domain information without IPv6 addresses, and how router advertisements and DHCPv6 relay connect clients to servers across broadcast domains.