CCDA 640-864 Summary Notes – Day 5

LAN Hardware Repeaters Layer 1 device Connects separate segments Do not control broadcasts or collision domains Forward frames out all other interfaces Protocol transparent understands bits Amplify the signals 5-4-3 Rule: The maximum path between two stations on the network should not be more than five segments, with four repeaters between those segments, and no more than … Continue reading CCDA 640-864 Summary Notes – Day 5

CCDA 640-864 Summary Notes – Day 4

IEEE 802.3-2002 (Ethernet Standards) Design Rules Round trip propagation delay should be less than 512-bit times in one collision domain. Max for 10 Mbps - 51.2 microseconds. Max for 100 Mbps - 5.12 microseconds 10 Base 5 No longer used Max segment = 500 m Max collision domain = 2500m of 5 segments Has a maximum diameter … Continue reading CCDA 640-864 Summary Notes – Day 4

CCDA 640-864 Summary Notes – Day 3

Hierarchical Network Models Advantages Cost savings Ease of understanding becausee of simple design and lower management costs as monitoring systems are distributed. Network growth as changes are contained to a small subset  of the network and only impact that small area Easy to isolate a problem in the network if the hierarchial model is used … Continue reading CCDA 640-864 Summary Notes – Day 3

CCDA 640-864 Summary Notes – Day 1 and 2

Cisco Network Architectures for the Enterprise a) Borderless networks architecture Enables connectivity to anyone and anything, anywhere, and at any time. Connectivity needs to be secure, reliable, and seamless. The major blocks include: Policy and Control are applied to all users and devices in the architecture Borderless Network Services provide resiliency and control Borderless User … Continue reading CCDA 640-864 Summary Notes – Day 1 and 2