S

Index

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SAP
SC connectors
scaling
     core block
     Layer 2 switching
     VLANs
scenarios
     advanced STP 2nd
     EtherChannel 2nd
     multicast 2nd
     QoS in a switched network 2nd
     router redundancy with HSRP and GLBP 2nd
     securing access and managing traffic in a switched network 2nd
     traditional STP 2nd
     trunking and DTP 2nd
     VLANs, trunking, and VTP 2nd
secondary VLANs 2nd
security, CatOS passwords
segmentation
selecting
     Designated Ports
     ranges of ports
     Root Ports (STP)
     switch ports for configuration
server farm block 2nd
server mode (VTP) 2nd
Service Advertisement Protocol (SAP)
service provider edge block 2nd
SFP (small form factor pluggable) modules
shared network models
show adjacency summary command
show cdp neighbors detail command
show commands
     output, filtering
     troubleshooting CatOS
show etherchannel load-balance command
show etherchannel port command
show etherchannel port-channel command
show etherchannel summary command
show glbp command
show interface command 2nd
show interface status command
show interface trunk command
show interfaces switchport command
show ip cef command
show ip interface brief command
show ip interface command
show lacp sys-id command
show mac address-table command
show port-security interface command
show power command
show spanning-tree interface command 2nd
show spanning-tree vlan command 2nd
show vlan command 2nd
show vlan id command
show vtp commands
show vtp counters command
show vtp status command 2nd
shutdown command 2nd
silent submode (PAgP)
single-tagging
sizing switch block
source
SPAN (Switched Port Analyzer)
     deleting sessions
     local SPAN
     RSPAN
     VSPAN
spanning-tree guard loop command
spanning-tree guard root command
spanning-tree portfast command
Spanning-Tree Protocol
Sparse Mode (PIM)
Sparse-Dense Mode (PIM)
speed command
spoofing attacks, mitigating
     ARP inspection
     DCHP snooping
Spurgeon, Charles
SSO (Stateful Switchover)
stale entries (CAM tables)
startup configuration 2nd
static CAM table entries, configuring
static VLANs
     configuring
     port-based membership
store-and-forward switching
STP (Spanning Tree Protocol) [See also MST, RSTP]
     active protection features, verifying on switch ports
     Blocking state
     BPDU Guard
    BPDUs
         Configuration BPDUs
         protecting against sudden loss
         TCN BPDUs
     bridging loops
         broadcast storms
         preventing
     CST
    Designated Ports
         election procedure
         selecting
     disabled state
     disabling with BPDU filtering
     displaying information
     forwarding state
     interoperability with RSTP
     learning state
     listening state
     loop guard
    MST
         IST instances
         MST instances
     network diameter value, configuring
     Path Cost
     Port ID, tuning
     PVST
     PVST+
     redundant link convergence
         BackboneFast
         PortFast
         UplinkFast
    Root Bridge
         configuring
         election procedure
         placement
     Root Guard
     Root Path Cost, tuning
    Root Ports
         election procedure
         Root Path Cost
     running multiple instances of
     switch ports, roles versus states
     timers
         automatic configuration
         manual configuration
         modifying
    topology changes
         direct
         indirect 2nd
         insignificant
     troubleshooting 2nd
     UDLD
     unknown unicast frames
subset advertisements
summary advertisements
superior BPDUs
supervisor modules, redundant switch supervisors
supervisor synchronization, Catalyst switches
SVIs (switched virtual interfaces) 2nd
switch block
    connections
         console port
         Ethernet port cables
         Gigabit Ethernet port cables
     distribution layer
     sizing
switch chassis
switch ports
     aggregation, EtherChannel
     assigning to VLANs
     BPDU filtering, enabling
     configuring
     connectivity troubleshooting
     duplex mode configuring
     errdisable state
    error conditions
         detecting
         recovering from
     identifying
     loop-inconsistent state
     PortFast configuring
    roles
         assigned in Root Guard
         assignments
         versus states (RSTP)
     RSTP, roles
     selecting for configuration
     SPAN
         RSPAN
         VSPAN
    speed
         configuring
         displaying
     text descriptions, adding
    trunks
         configuring
         example configuration
     UDLD enabling
     verifying active STP protection features
    VLANs
         and multiple subnets
         tagging
         troubleshooting
         trunk links
switches
     CatOS, passwords
     CDP, viewing information
     console ports, connecting to
     Fast Ethernet ports
     file management
         configuration files
         image files
         moving files
     host names, changing
     inter-switch communication
     operating systems
     port security
     remote access
     spoofing
     VLANs, deleting
    VTP
         configuring
         example configuration
switching
     CAM 2nd
     frame processing
     functionality
     Layer 2
     Layer 3
     Layer 4
     MLS (multilayer switching) 2nd
    multicast
         traffic
         verifying
     store-and-forward
     TCAM tables
         example
         port operations
         structure
         troubleshooting
         VMR combinations
     transparent bridging
     trunks, VTP
switchport command 2nd 3rd
synchronization
     RSTP switches
     VTP problem
syntax, CAM table commands
system priority value
system_env_vars.txt file