CCIE Routing and Switching Exam Certification Guide, Third Edition

Appendix E. Key Tables for CCIE Study

Chapter 1

Table 1-2. Ethernet Cabling Types

Type of Cable	Pinouts	Key Pins Connected
Straight-through
Cross-over

Table 1-3. Ethernet Header Fields

Field	Description
Preamble (DIX)
Preamble and Start of Frame Delimiter (802.3)
Type (or Protocol Type) (DIX)
Length (802.3)
Destination Service Access Point (802.2)
Source Service Access Point (802.2)
Control (802.2)
Organizationally Unique Identifier (SNAP)
Type (SNAP)

Table 1-4. Three Types of Ethernet/MAC Address

Type of Ethernet/MAC Address	Description and Notes
Unicast
Broadcast
Multicast

Table 1-5. I/G and U/L Bits

Field	Meaning
I/G
U/L

Table 1-6. Ethernet Type Fields

Type Field	Description
Protocol Type
DSAP
SNAP

Table 1-7. LAN Switch Forwarding Behavior

Type of Address ...