CCNP 642-811 BCMSN Exam Certification Guide - Cisco press

596 switching

MLS (multilayer switching), 12, 66 packet processing, 67, 69

multicast traffic

CGMP, 368–369

IGMP snooping, 367–368 store-and-forward, 61

TCAM tables, 71 example, 73

port operations, 74 structure, 71–72 troubleshooting, 76

transparent bridging, 61, 63 trunks

VTP, 171–174 synchronization

RSTP, 287

synchronization problem (VTP), 173

T

tagging, 146

IEEE 802.1Q, 148–149 ISL, 148

tail drops, 391 enabling, 416

TCAM (Ternary Content Addressable Memory), 65, 473

TCAM tables, 71 example of, 73 port operations, 74 structure of, 71–72 troubleshooting, 76

TCN BPDUs, 228 Telnet

remote access, 90–91 these, 23

throttling adjacencies, 316

tie conditions of Root Path Cost, 223 timers (STP), 227

modifying, 250–251 topology changes

detecting with RSTP, 288–289

ToS (type of service), 384 traffic

core blocks, 42, 44 flooding

VTP pruning, 180, 182 mulitcast, 14

traffic classification

defining as QoS policy, 409–410 example configuration, 419–420

transparent bridges redundancy, 215

versus Ethernet switches, 213–214 transparent bridging, 61, 63 transparent mode (VTP), 172

configuring, 176 transported, 17 troubleshooting

CAM tables, 75–76 CatOS

debug commands, 97–98 show commands, 96–97

EtherChannel, 200–203 QoS, 422–424

QoS operation, 422, 424 STP, 255, 273

switch port error conditions, 125–126 switch ports

connectivity, 126–127

TCAM tables, 76 trunks, 159, 161 VLANs, 159, 161 VTP, 183

trunking

VTP

advertisements, 172–173 client mode, 172 configuring client mode, 176

configuring management domains, 175 configuring server mode, 176 configuring transparent mode, 176 configuring version, 177–178 management domains, 171

pruning, 179–180, 182 server mode, 171

subset advertisements, 174 summary advertisements, 173 transparent mode, 172 troubleshooting, 183

viewing status, 178 trunks, 146

configuring, 150–152 DTP, 150 troubleshooting, 159, 161

trust boundaries, 389 trusts

applying to QoS, 406 defining as QoS policy, 412

tuning

egress scheduling, 414 tunneling

802.1Q, 153–155 configuring, 155

EoMPLS, 157–158

Layer 2 protocol tunneling, 155–156 configuring, 156

U

UDLD (unidirectional link detection), 271–273 unicast traffic, 357

unknown unicast flooding, 63 unknown unicast frames, 179, 214 unnecessary, 14

untrusted information permitting on interfaces, 407

UplinkFast, 253–254 used, 13

user authentication

enabling on Catalyst switches, 455–457 user EXEC mode, 88

login passwords configuring, 89

V

VACLs

configuring, 473–474 matching conditions

defining, 473–474

verifying

fallback bridging, 321

inline power for Cisco IP Phones, 443 MLS

CEF, 319, 321 interVLAN routing, 318

multicast switching, 369 QoS, 444–447

QoS operation, 422, 424 redundancy, 346

voice VLANs, 443–444

VLANs 597

viewing

CDP information, 98 STP information, 255 VTP status, 178

virtual, 15 VLANs, 141

deploying, 144 dynamic VLANs, 144 end-to-end

deploying, 145 interVLAN routing

configuring, 310–312 interfaces, 310 verifying, 318

local

deploying, 145 management VLAN

IP address assignment, 90–91

MST, 291–292 configuring, 295–296

IST instances, 293–294

MST instances, 294–295 regions, 292–293

PVLANs

associating secondary VLANs to primary VLANs, 479

configuring, 477–479

PVST, 229

SPAN, 480

deleting sessions, 483 local SPAN, 481–482, 484 RSPAN, 484–486

VSPAN, 482–484 static VLANs, 142

configuring, 143 tagging, 146

IEEE 802.1Q, 148–149 ISL, 148

troubleshooting, 159, 161 trunks, 146

configuring, 150–152 DTP, 150

tunneling

802.1Q, 153–155 EoMPLS, 157–158

Layer 2, 155–156 voice VLANs, 437

configuring, 438, 440 verifying, 443–444

See also VACLs

See also PVLANs, 474–475

598 voice VLANs

voice VLANs, 437 configuring, 438, 440 verifying, 443–444

VoIP

Cisco IP Phones

inline power, 435–437 verifying inline power, 443

QoS, 440

queuing mechanisms, 442 trust, configuring, 441 verifying, 444–447

voice packet classification, 442 voice VLANs, 437

configuring, 438, 440 verifying, 443–444

VRRP (Virtual Router Redundancy Protocol), 336–337

VSPAN

configuring, 482–484

VTP

advertisements, 172–173 subset advertisements, 174

summary advertisements, 173 client mode, 172

configuring, 176 management domains, 171 configuring, 175

viewing status, 178 pruning, 179–180, 182 server mode, 171

configuring, 176 transparent mode, 172 configuring, 176

troubleshooting, 183 version

configuring, 177–178

VTP synchronization problem, 173

W–X

workgroups, 18 WRED, 392–393

enabling, 416 thresholds

configuring, 416–417

WRR (Weighted Round Robin) queueing

WRR, 390

XDI

See CatOS

XOR (exclusive-OR) operation, 194