Index S

R

R reference points, 509

RADIUS (Remote Authentication Dial-in User Service), 509

RAM (random access memory), 509

Rapid Spanning Tree Protocol (RSTP), 193-194

RARP (Reverse Address Resolution Protocol), 509

rate queues, 509

RCP (Remote Copy Protocol), 509

reachability information in layer 3 devices, 28

read-only memory (ROM), 510

real command, 381

real time switch type, 149

Reconciliation Sublayer (RS), 50

redistribution, 509

redundancy in switched networks, 374-375

defined, 509

GLBP for, 382-385

HSRP for, 375-382, 375-376

transparent Ethernet for, 385

VRRP for, 382

redundant links, 179

BackboneFast in, 192-193

EtherChannel configuration for, 181-186

load balancing in, 186-187

parallel Fast EtherChannel links, 180-186

Port Aggregation Protocol for, 186

PortFast in, 187-189

Rapid Spanning Tree in, 193-194

redundancy in, 187

UplinkFast in, 189-192

reference points, 509

reliability, 509

reloads, 509

remote access, 509

Remote Authentication Dial-in User Service (RADIUS), 509

remote services

in campus model, 10

defined, 510

removing MLS cache entries, 263

rendezvous points. See RPs (rendezvous points)

Request to Send (RTS) signal, 512

Requests for Comments (RFCs)

defined, 510

multicast address listing for, 454-455

reserved multicast addresses, 288-289

reset command, 459

Resource Reservation Setup Protocol (RSVP), 359

Reverse Address Resolution Protocol (RARP), 509

Reverse Path Forwarding (RPF)

in DVMRP, 308

for multicast delivery management, 306-307

in PIM DM, 311

in PIM SM, 321

reverse Telnet, 510

review questions

campus networks, 36-39, 42-43

inter-VLAN routing, 224-227, 239-240

layer 2 switching, 155-158, 160

MLS, 273-276, 280-281

multicast, 336-339, 346-347

QoS, 390-393, 399-400

STP, 197-200, 204-205

switch blocks, 76-79, 84-85

switching technologies, 426-429, 431

VLANs, 124-127, 132-133

revision numbers

with VLANs, 108

in VTP, 111-112, 112

RFCs (Requests for Comments)

defined, 510

multicast address listing for, 454-455

RIF (Routing Information Field), 510

ring topology, 510

rings

defined, 510

in memory, 408

RIP (Routing Information Protocol)

block support in, 26

defined, 510

RIP version 2, 510

RJ connectors, 510

robbed bit signaling, 510

ROM (read-only memory), 510

root bridges

in best path selection, 144-145

configuring, 167-170

defined, 510

determining, 166

in spanning tree operation, 142-143, 147

timers on, 147

Root Link Query BPDUs, 192

root parameter, 168

root ports, 144-145

root timers, 152

round robin mechanism, 511

route poisoning, 511

Route Processors (RPs), 511

route summarization, 511

Route Switch Feature Card (RSFC)

defined, 512

for internal route processors, 211

Route Switch Modules (RSMs)

defined, 512

for internal route processors, 211-212

Route/Switch Processor (RSP), 512

routed protocols, 511

router on a stick, 211, 242-243, 243, 263, 263, 511

routers

for broadcasts, 5

defined, 511

in layer 3 switching, 14

routing, 14

defined, 511

multicast. See multicast routing

between VLANs. See inter-VLAN routing

routing domains, 511

Routing Information Field (RIF), 510

Routing Information Protocol (RIP)

block support in, 26

defined, 510

routing metrics, 511

routing protocols

and core size, 25-26

defined, 511

for multicast delivery, 308

CBTs, 313-314, 313-314

DVMRP, 308, 309

inter-area and inter-AS MOSPF, 310

intra-area MOSPF, 309-310

MOSPF, 309

MSDP, 316

PIM DM, 311-313, 312-313

PIM SM, 315-316, 315

SSM, 316-317

routing tables

defined, 511

viewing, 217

RPF (Reverse Path Forwarding)

in DVMRP, 308

for multicast delivery management, 306-307

in PIM DM, 311

in PIM SM, 321

RPs (rendezvous points)

defined, 511

in end-to-end multicast, 317

group assignments for, 325

Mapping Agent for, 325-326

for multicast routing, 323-326

in shared trees, 305, 305-306

RPs (Route Processors), 511

RS (Reconciliation Sublayer), 50

RSFC (Route Switch Feature Card)

defined, 512

for internal route processors, 211

RSMs (Route Switch Modules)

defined, 512

for internal route processors, 211-212

RSP (Route/Switch Processor), 512

RSTP (Rapid Spanning Tree Protocol), 193-194

RSVP (Resource Reservation Setup Protocol), 359

RTP (Real Time Protocol), 356

RTS (Request to Send) signal, 512