Index T

S

S reference points, 512

SAFE method, 29-31, 29-31

sampling rates, 512

SAP (Service Access Point), 512

SAP (Service Advertising Protocol), 512

saving switch configuration, 70-72

scalability in VLANs, 90

scalable size and throughput in campus networks, 9

scaling

layer 2 backbones, 27-28, 27

layer 3 backbones, 28

Spanning Tree Protocol, 165-166

port cost setting in, 171-173

port priority setting in, 173-177, 175

root configuration in, 167-170

root determination in, 166

switch block, 92STP timer changes in, 177-179

static VLAN configuration for, 94-99

VLAN boundaries in, 93

VLAN memberships in, 94

SCR (Sustainable Cell Rate), 512

scripts, 512

SDH (Synchronous Digital Hierarchy), 512

SDLC (Synchronous Data Link Control), 512

secondary parameter, 168

Secure Blueprint for Enterprise Networks, 29

security

in routing, 14

SAFE for, 29-31, 29-31

in VLANs, 90

in VTP, 108

security policies, 512

security servers, 513

segmentation, 48

Sequenced Packet Exchange (SPX), 516

Serial Line Internet Protocol (SLIP), 514

Serial Tunnel (STUN), 517

serialization delays

in best efforts networks, 357

defined, 513

server blocks, 22

server farms, 13

Server Load Balancing (SLB), 381

configuring, 381-382

defined, 513

stateful backup in, 382

server mode in VTP, 109, 109

Server Module

Gigabit Ethernet in, 53

in SAFE, 30, 31

servers

defined, 513

in VTP, 107

Service Access Point (SAP), 512

Service Advertising Protocol (SAP), 512

Service Profile Identifiers (SPIDs), 515

session command, 215

Session layer, 12, 513

set-based commands. See IOS- and set-based commands

set-based devices, 513

set-based operating systems, 55

set cgmp enable command, 330

set cgmp leave enable command, 331

set commands, 56

set enablepass command, 59

set igmp enable command, 331

set igmp fastleave command, 331

set interface scO command, 62

set interface sl0 command, 63

set ip route command, 218

set mls agingtime command, 260

set mls agingtime fast command, 261

set mls enable command, 259

set mls flow command, 259

set mls include command, 259

set password command, 59

set port channel command, 181, 216

set port disable command, 65

set port duplex command, 68

set port enable command, 65

set port name command, 66

set port speed command, 68

set prompt command, 183

set qos enable command, 369

set qos info config command, 369

set qos map command, 369

set spantree command, 150, 167

set spantree backbonefast command, 193

set spantree backbonefast enable command, 193

set spantree disable command, 150

set spantree enable command, 150

set spantree fwddelay command, 177

set spantree hello command, 177-178

set spantree maxage command, 178

set spantree portcost command, 171

set spantree portfast command, 188

set spantree portpri command, 173

set spantree portvlanpri command, 174-175

set spantree priority command, 169

set spantree root command, 167-168

set spantree root secondary command, 167

set spantree uplinkfast command, 190-192

set spantree uplinkfast enable command, 190

set trunk command, 103-104, 183, 216

set vlan name command, 94-96

set vtp domain command, 114-115

set vtp pruneeligible command, 118

set vtp v2 enable command, 113

setup mode, 513

setup process, 57

SFs (super frames), 513

shared memory

defined, 513

for non-blocking switches, 404

shared memory switching fabrics, 405, 405

shared trees

defined, 513

for multicast traffic routing, 304-305, 305-306

shielded twisted-pair (STP), 517

short option, 262

Shortest Path First (SPF) algorithm, 515

shortest path tree (SPT), 304

show command, 64-65

show buffers command, 409

show cam command, 419

show cgmp statistics command, 330

show etherchannel command, 184

show flash command, 72, 414-415

show igmp statistics command, 331

show interface command, 65-67

show interface gigabit command, 212

show interface port-channel command, 212

show interface switchport command, 106

show interface vlan command, 217

show ip cef command, 269

show ip interface command, 269

show ip mroute command, 319

show ip route command, 217-218

show mac-address-table command, 414, 460

show mls command, 246-247

show mls entry command, 259, 262

show mls include command, 259

show mls ip command, 261

show mls rp command, 256

show mls rp interface command, 256-257

show mls rp vtp-domain command, 256

show module command, 215

show multicast group cgmp command, 331

show port command, 64-65, 68

show port block command, 461

show port capabilities command, 181

show port channel command, 181, 183, 186

show port group command, 461

show port monitor command, 461

show port security command, 461

show processes command, 423

show running-config command, 67, 71, 214, 217, 219, 253, 330, 384

show spanning-tree command, 150-151, 170, 172-173, 176

show spanning-tree uplinkfast command, 191

show spantree command, 151-152, 169

show spantree 1/1 command, 174-175

show spantree 1/2 command, 175

show spantree backbonefast command, 193

show spantree uplinkfast command, 190

show standby command, 378

show startup-config command, 71

show tcam command, 416-417

show trunk command, 106, 118

show version command

for 2950 switches, 413

for 3550 switches, 416

for 4000 switches, 418

show vlan command, 95-97, 99

show vtp counters command, 116-117

show vtp domain command, 116, 253

show vtp statistics command, 115-116

SI (standard image) IOS, 411, 517

Signal Quality Error (SQE), 516

signaling packets, 513

silicon switching, 513

Silicon Switching Engine (SSE), 516

Simple Mail Transfer Protocol (SMTP), 514

simplex mode, 513

single trunk links in inter-VLAN routing, 211, 211

size

core blocks, 25-26

and root bridge timers, 147

switch blocks, 23

SLB (Server Load Balancing), 381

configuring, 381-382

defined, 513

stateful backup in, 382

sliding windows, 514

SLIP (Serial Line Internet Protocol), 514

slots and modules, 215

small office, home office (SOHO), 514

SMDS (Switched Multimegabit Data Service), 514

SMI (Standard Multilayer Software Image), 21

SMTP (Simple Mail Transfer Protocol), 514

SNA (System Network Architecture), 514

SNAP (Subnetwork Access Protocol), 514

snapshot routing, 514

sockets, 514

SOHO (small office, home office), 514

SONET (Synchronous Optical Networks), 385, 514

Source-Destination-IP flow masks, 259

source-route bridging (SRB), 516

source-route translational bridging (SR/ TLB), 516

source-route transparent (SRT) bridging, 516

Source Service Access Points (SSAPs), 516

Source Specific Multicasting (SSM), 316-317, 516

source trees

defined, 514

for multicast traffic routing, 303-304, 304

SPAN (Switch Port Analyzer), 515

spanning explorer packets, 515

spanning tree algorithm (STA)

defined, 515

execution of, 141

spanning-tree command, 150

spanning-tree cost command, 172

spanning tree loop indicator, 150

spanning-tree port command, 189

spanning-tree portfast command, 189

Spanning Tree Protocol (STP). See STP (Spanning Tree Protocol) and spanning tree operation

spanning-tree uplinkfast command, 191

spanning-tree vlan command, 176, 179, 460

spanning-tree vlan forward-time command, 460

spanning-tree vlan hello-time command, 460

spanning-tree vlan max-age command, 460

spanning-tree vlan priority command, 460

spans, 514

sparse-dense-mode option, 320

sparse-mode option, 320

sparse mode routing protocols

CBTs, 313-314, 313-314

MSDP, 316

PIM SM, 315-316, 315

SSM, 316-317

speed command, 68

SPF (Shortest Path First) algorithm, 515

SPIDs (Service Profile Identifiers), 515

split horizon, 515

spoofing, 515-516

spoolers, 516

SPs (Switch Processors), 514

SPT (shortest path tree), 304

SPX (Sequenced Packet Exchange), 516

SQE (Signal Quality Error), 516

SR/TLB (source-route translational bridging), 516

SRB (source-route bridging), 516

SRT (source-route transparent) bridging, 516

SS-7 signaling, 516

SSAPs (Source Service Access Points), 516

SSE (Silicon Switching Engine), 516

SSM (Source Specific Multicasting), 316-317, 516

STA (spanning-tree algorithm)

defined, 515

execution of, 141

Stac compression method, 516

standard image (SI) IOS, 411, 517

standard IP access lists, 517

standard IPX access lists, 517

Standard Multilayer Software Image (SMI), 21

standby ip command, 377-378

standby preempt command, 378

standby track command, 378

star topology, 517

startup

for 2950 switches, 57-58

for 4000 switches, 56-57

state transitions, 517

states in RSTP, 194

static routes, 517

static VLANs

assigning switch ports to, 94

configuration of, 94

for 2950 and 3550 switches, 95-99

for 4000 switches, 95-96

defined, 517

statistical multiplexing, 517

STM-1 (Synchronous Transport Module Level l), 517

store-and-forward switch types, 149, 517

STP (shielded twisted-pair), 517

STP (Spanning Tree Protocol) and spanning tree operation, 141-142, 142

best path selection in, 142-145

in bridges vs. switches, 137

configuring, 150-152

defined, 515, 517

exam essentials for, 195

example, 147, 147

hands-on lab for, 201-202, 201

key terms for, 196

and multicast, 302

port states in, 145-146, 146

review questions for, 197-200, 204-205

scaling. See scaling

summary, 194-195

timers in, 177-179

written lab for, 196, 203

streaming transport, 356

stub areas, 517

stub networks, 517

STUN (Serial Tunnel), defined, 517

subarea nodes, 518

subareas, 518

subchannels, 518

subinterfaces, 518

subnet addresses, 518

subnet masks, 518

Subnetwork Access Protocol (SNAP), 514

subnetworks, 518

subscribed hosts, 287

subscribing to multicast groups, 287, 294

subsequent MLS packets, 250

subset advertisements, 110-111, 111

summaries in VTP advertisements, 110

Summary LSAs, 310

super frames (SFs), 513

Supervisor engines, 215

Sustainable Cell Rate (SCR), 512

SVCs (switched virtual circuits), 518

switch blocks, 22-23, 46

cabling, 46-48, 55-58

defined, 518

exam essentials for, 73-74

hands-on lab for, 80-82, 80

IOS- and set-based commands for. See IOS- and set-based commands

key terms for, 74

review questions for, 76-79, 84-85

scaling, 92

static VLAN configuration for, 94-99

VLAN boundaries in, 93

VLAN memberships in, 94

size, 23

summary, 72-73

written lab for, 75, 83

switch fabrics, 90, 403-404

bus, 404-405, 405

crossbar, 406, 406

defined, 518

shared memory, 405, 405

switch interface identification, 64

for 2950 and 3550 switches, 65-66

for 4000 switches, 64-65

Switch Port Analyzer (SPAN), 515

Switch Processors (SPs), 514

Switch> prompt, 58

switched Ethernet, 48, 518

switched LANs, 518

Switched Multimegabit Data Service (SMDS), 514

switched networks, redundancy in. See redundancy in switched networks

switched virtual circuits (SVCs), 518

switches

access layer, 20-21

vs. bridges, 136-137

for broadcasts, 5

core layer, 22

defined, 518

distribution layer, 21

in VLANs, 90

switching technologies, 10, 402

2950 series, 413-415, 413

3550 series, 415-417, 415

4000 series, 417-419, 418

6500 series, 419-420, 420

bridging table operations, 406-407

CMS, 421

debugging, 421-422

exam essentials for, 424-425

key terms for, 425

layer 2 switching, 13

layer 3 switching, 14-15

layer 4 switching, 15

memory in, 407-410, 408, 410

multilayer switching, 15-16

in OSI model, 11-12, 11

review questions for, 426-429, 431

routing, 14

software, 410-412

summary for, 424

switching process, 402-406, 403, 405-406

system testing, 422-423

written lab for, 425, 430

switchport access command, 459

switchport access vlan command, 97-98

switchport mode command, 459

switchport mode access command, 97-98

switchport mode dynamic command, 105

switchport trunk allowed command, 459

switchport trunk allowed vlan remove command, 105

switchport trunk encapsulation command, 459

switchport trunk pruning vlan remove command, 118

Synchronous Data Link Control (SDLC), 512

Synchronous Digital Hierarchy (SDH), 512

Synchronous Optical Networks (SONET), 385, 514

synchronous transmissions, 519

Synchronous Transport Module Level l (STM-1), 517

System Network Architecture (SNA), 514

system testing, 422-423

systems bus in process switching, 266