Index

A

  • access control lists (ACLs)
  • address:
    • broadcast
    • destination
    • Ethernet MAC
    • group (multicast)
    • hardware
    • individual (unicast)
    • locally administered
    • multicast
    • physical
    • source
    • unicast
    • universally administered
  • Address Resolution Protocol (ARP)
  • address table
  • adjacency information base (AIB). see adjacency table
  • adjacency table
  • administrative distance
  • ARP cache
  • ARP table. see ARP cache

B

  • bit ordering
  • blocking:
    • head-of-line blocking (HOL)
    • internal blocking
    • output blocking
  • broadcast address
  • bus:
    • burst mode
    • bus bandwidth
    • bus interfacing
    • bus speed
    • bus width
    • control bus
    • data bus
    • hierarchical bus architecture
    • pipelining mode
    • result bus
  • byte ordering

C

  • centralized forwarding
  • centralized functions
  • centralized processor
  • channel multiplexing
  • committed information rate (CIR)
  • congestion avoidance
  • content addressable memory (CAM)
  • control engine
  • control plane
  • CPU rate limiting. see rate limiting
  • crossbar

D

  • data plane
  • Deficit Round Robin (DRR)
  • device access control
  • differentiated services code point (DSCP) transparency
  • distributed forwarding
  • distributed functions
  • distributed output buffered
  • Domain Name System (DNS)
  • Drop Eligible Indicator (DEI)
  • Dynamic Host Configuration Protocol (DHCP)

E

  • endian:
    • big
    • little
  • equal-cost multipath (ECMP)
  • EtherChannel. see Link Aggregation
  • Ethernet:
    • bit ordering
    • frame format
    • length encapsulation
    • tagged frames
    • type encapsulation
  • Ethernet frame:
    • data
    • destination address
    • Frame Check Sequence (FCS)
    • preamble
    • source address
    • start-of-frame delimiter (SFD)
    • type/length
  • Ethernet out-of-band channel (EOBC)

F

  • filtering
  • flooding
  • flow/route cache
  • flow-based forwarding
  • forwarding engine
  • forwarding information base (FIB). see forwarding table
  • forwarding processor
  • forwarding table
  • frame:
    • baby giant
    • giant
    • jumbo
    • runt
    • tagged
    • untagged
    • VLAN-tagged
  • Frame Check Sequence (FCS)
  • frame stitching. see channel multiplexing

H

  • head-of-line (HOL) blocking
  • hot-swap

I

  • IEEE 802.1D
  • IEEE 802.1Q
  • IEEE 802.1Q tag format:
    • Drop Eligible Indicator (DEI)
    • Priority Code Point (PCP)
    • Tag Control Information (TCI)
    • Tag Protocol Identifier (TPID)
    • VLAN identifier (VID)
  • Inter-Packet Gap (IPG)
  • IP Source Guard
  • IPv4 addressing:
    • address exhaustion
    • broadcast address
    • classful addressing
    • Classless Inter-Domain Routing (CIDR)
    • globally unique
    • Link-Local Addresses
    • locally unique
    • loopback address
    • multicast addresses
    • original ARPANET addressing scheme
    • private Addresses
    • reserved IPv4 addresses
    • unused public IP addresses
    • Variable-Length Subnet Masks (VLSM)
  • IPv4 fragmentation
  • IPv4 MTU discovery
  • IPv4 packet format
    • Data
    • Destination Address
    • Differentiated Services Code Point (DSCP)
    • Explicit Congestion Notification (ECN)
    • Flags
    • Fragment Offset
    • Header Checksum
    • Identification
    • Internet Header Length (IHL)
    • Options
    • Protocol
    • Source Address
    • Time to Live (TTL)
    • Total Length
    • Version
  • IPv4 packet forwarding:
    • IPv4 header checksum computation
    • routing/forwarding table entries
    • TTL (time-to-Live) update

L

  • Layer 2:
    • forwarding
    • forwarding engine
    • forwarding functions
  • Layer 3:
    • forwarding
    • forwarding engine
    • forwarding functions
    • forwarding table
  • Link Aggregation

M

  • MAC (Medium Access Control) address:
    • burned-in address (BIA)
    • Ethernet hardware address (EHA)
    • EUI-48 format
    • EUI-64 format
    • globally unique
    • locally administered
    • MAC-48 format
    • NIC specific field
    • Organizationally Unique Identifier (OUI)
  • management plane
  • management ports
  • management processor
  • MTU discovery
  • multicast address

N

  • NetFlow
  • Network Address Translation (NAT)
  • network management
  • network monitoring

O

  • online insertion and removal (OIR). see also hot-swap
  • Open Systems Interconnection (OSI)
  • Organizationally Unique Identifier (OUI)

P

  • packet classification
  • packet rewrite. see traffic marking
  • performance metrics
  • port security
  • port trust setting
  • port types:
    • access port
    • IEEE 802.1Q-trunk
    • ISL-trunk
    • Layer 3 (or routed) port
    • switch port
    • trunk port
    • VLAN Interface (or Switch Virtual Interface (SVI)
  • Port VLAN ID
  • Priority Code Point (PCP)
  • proxy server

Q

  • quality-of-service (QoS) maps
  • queue thresholds

R

S

  • scheduling
  • service-level agreement (SLA)
  • shared-bus
  • shared-memory
  • shared-ring
  • source address
  • Spanning Tree Protocol (STP)
  • Strict Priority Queuing
  • switch clustering
  • Switched Port Analyzer (SPAN)
  • switched virtual interface (SVI). see port types
  • switching:
    • cut-through
    • store-and-forward
  • system access control. see device access control
  • system processor

T

  • Tag Control Information (TCI)
  • tagged Ethernet frames
  • Tag Protocol Identifier (TPID)
  • tail-drop
    • weighted tail-drop
  • Ternary CAM (TCAM)
  • topology-based forwarding table
  • traffic classification. see packet classification
  • traffic marking
  • traffic policing
  • traffic scheduling. see scheduling

U

  • unicast address
  • User Priority field

V

  • virtual output queue (VoQ)
  • virtual routing and forwarding (VRF)
  • VLAN (Virtual Local Area Network)
  • VLAN-aware
  • VLAN Identifier (VID)
  • VLAN Protocol Identifier (VPID)
  • VLAN tagging
  • VLAN-unaware

W

  • watchdog polling
  • Weighted Fair Queuing (WFQ)
  • Weighted Random Early Detection (WRED)
  • Weighted Round Robin (WRR)
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