411
Pinnacle ASICs, 261
PIR (peak information rate), 46, 311
platforms, 59
classification, 60–61
general QoS packet-flow architecture, 73
multiplatform design, 378–380
policing, 71
point-to-point architecture, 8–15, 62–64, 74–77, 144–146
policed DSCP mark-down tables, 297–300
policed-dscp-transmit keyword, 222
policing, 20, 44–46, 71
actions, 169–174
burst sizes, 174
CAR, 353–356
Catalyst 4000 IOS Family of switches, 214–224
Catalyst 6500 switches, 300–314, 352, 362
class-based, 351, 356–359
FlexWAN policing, 352, 362
individual and aggregate, 166–167
ingress and egress, 164–165
ports, 168–169
switches, 162–174
traffic rates, 171
VLANs, 168–169
Policy Feature Card (PFC), 337
policy map class action command, 171
policy maps, 213
Catalyst family of switches, 163–164
Catalyst 6500, 283
MQC, 132–137
ports
10/100 input scheduling, 260
Auto-QoS, 330
Catalyst 6500, 265–271
double-wide adapters, 341
Gigabit Ethernet (ASICs), 261
ingress CoS configuration, 152–154
policing, 168–169, 215
traffic shaping, 243–244
transmit queues, 225
trust configuration, 211
PQ (Priority Queuing), 33
precedence (IP), 51, 155–156
precedence-to-DSCP mapping, 293–295
predictability, necessity for, 5–9
Priority Queuing (PQ), 33
priority-queue cos-map command, 264
protocols
CDP, 112
IP (Layer 4 criteria), 279
NBAR discovery, 343–346
RSVP, 14, 46–47
RTP, 50
Q
QoS (quality of service), overview of, 5–9
queues
active management, 36–41
Catalyst 6500 switches, 363–370
CBWFQ, 10, 364–367
CoS mapping, 263–265
CoS-to-transmit mapping, 177
CQ, 34
dLLQ, 368, 370
LLQ, 10, 57
memory, 268
port transmit, 225
PQ, 33
strict-priority, 178, 226
tail-drop thresholds, 261–263
transmit
shaping, 232
sharing, 229
WFQ, 34
R
Random Early Detection (RED), 36–41
rate-limit command, 349
rates
configuring, 219
limiting, 244
packets (traffic shaping), 44
policers, 220
traffic policing, 171, 219
transfers (token buckets), 41–44
R-bus (results bus), 339
rcv-queue threshold command, 262
Real Time Protocol (RTP), 50
Real Time Protocol Header Compression (cRTP), 48, 50
reclassification. See also classification
Catalyst 2900XL/3500XL switches, 77–78
DSCP, 210
RED (Random Early Detection), 36–41
requirements
Catalyst 6500 switches, 339–341
hardware, 97–100, 253–256
software,76, 97
Catalyst 4000 CatOS switches, 83
switches, 147–149
traffic, 6
Resource Reservation Protocol (RSVP), 14
resources, policing, 215
results, TCAM, 144
results bus (R-bus), 339
RFC 2474, 21–23, 54
RFC 2597, 25–26
RFC 2597

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