Index_P

P

Packet Capture group in RMON, 440

packet filters, access lists as, 407

Packet Level Protocol (PLP), 570

packet loss, in voice transmission, 495

packet switch, 568

Packet Switch Exchange (PSE), 572

packet-switched network (PSN), 221, 573

packet switching, 27, 568

packetizing, 567

packets, 6, 36, 567

PAP (Password Authentication Protocol), 568

parity checking, 568

partial mesh topology, 204, 204–205, 568

with Frame Relay, 241, 241–242

passive-interface command, 342

Password Authentication Protocol(PAP), 568

passwords

for IS-IS routers, 381

for OSPF, 359

path determination, 568

in WAN, 224–225

payload compression, 413

PBXs (private branch exchanges),491–492, 571

PCM (pulse code modulation), 491

PCR (Peak Cell Rate), 568

PDIOO methodology, 155–156, 160–161

for WANs, 222–223

PDN (Public Data Network), 568

PDU (protocol data unit), 436, 572

Peak Cell Rate (PCR), 568

peer machines, 138

peer-to-peer communication, 15, 15

peers, 569

per-destination load balancing, 229–230, 569

per-packet load balancing, 229–230, 569

performance

evaluating network needs andexpectations, 169

existing, 165

of hierarchical network, 193

permanent virtual circuit (PVC), 573

permanent virtual path (PVP), 573

PGP (Pretty Good Privacy), 569

phantom, 569

phantom router, 202

physical addresses, vs. logical, 130–131

physical data movement, in reference model, 14–15, 15

Physical layer (OSI), 34–35, 569

Physical layer in ATM protocol, 45–46

Physical medium dependent (PMD) sublayer, in ATM Physical layer, 45–46

physical security, 485–486

physical segmentation, 69

PICT standard, 19

pilot project, 462–465

exam essentials, 466

implementation steps, 463–464

PIM (Protocol Independent Multicast), 82

ping, 569

pinhole congestion, 206, 206, 569

planning, in PDIOO methodology, 155–156

pleisochronous, 569

PLP (Packet Level Protocol), 570

PNNI (Private Network-NetworkInterface), 570

Point of Presence (POP), 570

point-to-multipoint connection, 570

point-to-point connection, 570

Point-to-Point Protocol (PPP), 34,236–237, 571

protocol stack, 236

point-to-point subinterface, 242

point-to-point subnet mask, 286

poison reverse updates, 326, 332, 570

poisoned route, 321

polling, 570

MAC sublayer and, 33

POP (Point of Presence), 570

POP (Post Office Protocol), 570

port number, 570–571

PortFast BPDU filter, 387

ports

137 and 138, 290

cost for Spanning-Tree Protocol, 85

forwarded, 289–290

security for, 483

positive acknowledgment withretransmission, 25

Post Office Protocol (POP), 570

PPP (Point-to-Point Protocol), 34,236–237, 571

protocol stack, 236

preamble of data frame, 30

prefix routing protocols, 325

Presentation layer (OSI), 18–19, 571

Pretty Good Privacy (PGP), 569

PRI (Primary Rate Interface), 235, 571

Primary Rate Interface (PRI), 235, 571

primary ring in FDDI, 41

primary stations for SDLC, 231

printer queuing, 4

printers, sharing, 3–4, 124

priority queueing, 416–417, 417, 571

private branch exchanges (PBXs),491–492, 571

private IP addresses, 283–290, 571

in case study, 511–512

IP v4, 571

Private Network-Network Interface(PNNI), 570

private networks, for WANs, 219

proactive network management, 444–445

Probe Configuration group in RMON, 440

Process/Application layer (DOD), 121

protocols, 122–124

process identification number, for OSPF routers, 369

process switching, 571

for WANs, 226

processing power, for link-statealgorithm, 323

PROM (programmable read-onlymemory), 572

propagation delay, 494, 572

protocol analyzer, 165, 572

protocol data unit (PDU), 436, 572

Protocol Directory group in RMON, 440

Protocol Distribution group inRMON, 440

Protocol Independent Multicast(PIM), 82

protocol stack, 15, 572

protocols, 12, 572

information gathering about, 163

non-routable, 383

prototype, 462–465

exam essentials, 466

implementation steps, 464–465

proxy ARP, 203, 572

proxy services, 410–412, 572

IP helper addresses, 412

for IPX, 411

proxy ARP, 412

PSE (Packet Switch Exchange), 572

PSN (packet-switched network), 573

PSTN (Public Switched Telephone Network), 220, 491–492, 573

PSTN module, 200

Public Data Network (PDN), 568

public networks, for WANs, 221–222

Public Switched Telephone Network (PSTN), 220, 491–492, 573

pulse code modulation (PCM), 491

PVC (permanent virtual circuit), 573

PVP (permanent virtual path), 573

PVP tunneling, 573