Operating Cisco LAN Switches
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By Cbrzana |
Operating Cisco LAN Switches
2950 Series Features and Functions
Full-featured, wiring closet switches (connection point for end-user devices). Usually about 24 10/100 Ethernet interfaces, 2 Gigabit interfaces (for Switch to switch, switch to router connectivity).
- > Ports have RJ-45 connectors, labeled 0/x, where x is the port number
Switches categorized into 2 types:
Internetwork Operating System (IOS) and Catalyst Switches
- - > Catalyst exist because Cisco purchased Crescendo Communications
- - > Use different OS
- Cisco IOS Switches use same CLI and IOS Routers, but there are different functions/features.
Differences
- No auxiliary port
- Commands are different, due to different functions between router/switch
Status Lights (LEDS)
POST: Turns on all LEDS to verify they are working
- > Amber = FAIL POST, Green = PASS
Redundant Power Supply (RPS) Light: Green or Amber, flashing or not
Ports: Every port has LED, meaning depends on what MODE is set to
1. State: Green means functional, flashing is activity, off is not functional
2. Util: The more LEDS lit, the more utilization
3. Duplex: Green if full duplex, off otherwise
4. Speed: Green if 100 Mbps, off otherwise
Initial Configuration is same concept as router, different settings.
Configuring IOS software is the same concept as router
- - > Configure terminal, copy running-config startup-config, etc.
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