background image
706
path control layer (SNA model), 435
explicit routes, 445
virtual routes, 446
path determination, 191
administrative distance, 197
EIGRP, DUAL finite-state machine, 238
OSPF, 222
PBXs (Private Branch Exchanges), 596
dial plans, 601-603
classes, 604
CoS groups, 603
key systems, 596
tandem, 600
PC Anywhere, 401
peer groups (DLSw+), 524-526
designing, 526, 529
peering routers, placement in hierarchical topology,
519-520
per-area default cost, 228
performance
DLSw+, tuning, 538-539
estimating, 11
perimeter routers, 560
peripheral nodes, 439-442
cluster controllers, 441
physical control layer (SNA model), 435
PIM (protocol independent multicast), 166
PIUs (path information units), 443
PKI (Public Key Infrastructure), 574-575
planning phase
analysis of requirements, 10
assessing network resiliency, 14-15
cost-benefit analysis, 12
developing internetwork structure, 11
establishing disaster recovery mechanisms, 13
estimating network performance, 11
implementing redundant power systems
hardware, 16
media, 15
information gathering, 9
prioritizing business processes, 14
PLP (Packet-Level Protocol), 332
PLS (primary link station), 457
PLUs (primary logical units), 442
PLU-SLU sessions, 442
PNNI (Private Network Node Interface), 121
point-to-multipoint networks, 219
point-to-point links, 298
IP unnumbered, 397, 400
loopback interfaces, 399
point-to-point networks, 90, 218
ATM, 127
policy routing, 536
polling, 434
poor man's firewall, 55
power supplies, backup, 15
PPP (Point-to-Point Protocol), 403-404
HDLC, 403-404
LCP, 403-404
MLPPP, 405
bundles, 405-406
MMP, 407
PR (Policy-Based Routing), 536
pre-design best practices
assessing network resiliency, 14-15
cost-benefit analysis, 12
establishing disaster recovery mechanisms, 13
estimate network performance, 11
implementing redundant power systems, 15
prioritizing best practices, 14
redundant systems, implementing
hardware, 16
media, 15
Predictor data compression algorithm, 309
presentation services layer (SNA model), 435
PRI (Primary Rate Interface), 393, 396
PRI routers, 409
Printer-Access Protocol (PAP), 260
prioritization, 619
prioritizing
business processes, 14
DLCI, 537
traffic, DLSw+, 530-532
priority queuing, 304-306
default mapping, 535
DLSw+, 532
private ATM networks
address allocation, 121-122
network interfaces, 122
controlling congestion, 122-123
private networks, 163-164
ATM routing, 121
private UNI, 122
path control layer (SNA model)
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