Join Lazaro Diaz for an in-depth discussion in this video Dissecting the internal components of a Cisco router, part of CCNA Cert Prep: ICND2.
- When dealing with Cisco routers and switches,…understanding the inter-working of your networking devices…will help you better understand what is going on…when trouble comes knocking at your door.…Routers and switches are very similar to PCs.…They are just Task-Specific Computers.…They have a different objective,…but they are very similar how they operate.…In a device, you have many types of memory.…
RAM, or random-access memory.…ROM, or read-only memory.…RAM is volatile, meaning when the device reboots,…the RAM is clear.…ROM, on the other hand, is non-volatile.…Critical start-up instructions and hardware tests…are stored in ROM.…The bootstrap is stored in the microcode of ROM.…It is used to bring up the router and locate the IOS.…
The POST, or power-on self-test,…is also stored in ROM.…On start-up, the device runs through a series…of hardware functionality checks…to verify that the hardware is operating as expected.…Also stored in ROM is the ROM monitor,…which is used for testing and troubleshooting.…The last tool stored in ROM is the mini IOS.…
Author
Released
9/11/2015- LAN switching
- The Spanning-Tree Protocol
- Backing up and restoring Cisco devices
- IP services (FHRP, syslog, GLBP, and SNMP v2 and v3)
- Configuring EIGRP
- IP routing via OSPF
- Setting up wide area networks (WANs) with PPP and frame relay
- Understanding virtual private networks (VPNs)
Using Packet Tracer and cabling, you'll learn how to combine these protocols and technologies to create redundant switch networks that are stable and fast. Along the way, Laz provides practical examples of networking challenges that you'll encounter in the exam and in real life.
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome1m 17s
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1. Enhanced Switched Techonologies
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Configuring per-VLAN STP4m 52s
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Using EtherChannel8m 35s
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2. Managing Cisco Devices
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3. IP Services
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Understanding HSRP5m 13s
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Configuring HSRP6m 7s
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Understanding VRRP3m 53s
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Introducing GLBP4m 46s
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Troubleshooting with syslog5m 34s
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Using SNMP services3m 57s
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4. EIGRP
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Configuring EIGRP for IPv64m 55s
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5. Multi-Area OSPF
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Introducing OSPF terminology5m 20s
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Configuring OSPFv3 for IPv64m 44s
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6. Wide Area Networks
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Exploring the HDLC protocol2m 13s
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Understanding PPP5m 42s
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Configuring PPP3m 45s
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Understanding frame relay3m 38s
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Configuring frame relay6m 53s
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Understanding GRE tunnels1m 56s
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Configuring GRE tunnels4m 36s
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Conclusion
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Next steps1m 5s
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Video: Dissecting the internal components of a Cisco router