1Q) trunks,
24-26, 32-35
VTP, 26-32
VID, PVST+, 57
vlan command, 35-36
voice VLAN, 22
vlan command, VLAN creation, 35-36
VLSM (Variable-Length Subnet Masks), 123,
133
benefits of, 125
calculating
networks, 126
subnet addresses, 128
route summarization, 128-132
subnetting subnetted addresses, 126
voice VLAN (Virtual Local Area Networks),
22
voice VLAN port membership mode (Catalyst
switches), 24
VPN (Virtual Private Networks)
benefits of, 299
Easy VPN, 301-303
examples of, 298
IPsec
antireplay protection, 308
authentication, 308, 312
con?¬?dentiality (encryption), 308
data encryption, 309-311
VPN (Virtual Private Networks)
384
data integrity, 308, 311-312
framework protocols, 313
SSL VPN, 304-307
remote-access VPN, 300
site-to-site VPN, 299
VPN 3002 Hardware Client, IPsec SSL VPN,
307
VPN Software Client, IPsec SSL VPN, 307
VTP (VLAN Trunking Protocol), 26
advertisements, 28
client mode, 28
configuration revision numbers, 29
configuring, 30-32
pruning, 29-31
server mode, 27
transparent mode, 28, 36
troubleshooting, 82-85
W - X - Y - Z
WAN (Wide-Area Networks), 315
ATM protocol, 316
broadband, 316
cable modems, 317
Ethernet, 317
Frame Relay networks
address mapping, 331-332
BECN, 328
CIR, 327
clearing maps, 347
components of, 326-328
con?¬?guring, 334-339
DCE, 325
DLCI, 327
DLCI con?¬?guration, 350
DTE, 325
FECN, 328
full-mesh topologies, 329
inverse ARP, 327, 333
LMI, 327, 332-333
local access rates, 326
loopback tests, 349
NBMA connectivity, 329-330
partial-mesh topologies, 329
PVC, 327
routing update reachability, 330
star topologies, 329
subinterfaces, 330-331, 336-339
SVC, 327
troubleshooting, 347-354
VC, 326
verifying, 340-344, 346
Frame Relay protocol, 316
HDLC protocol, 316
PPP protocol, 316-317
authentication, 319-324
encapsulation, 320-323
session establishment phases, 318
PPPoA protocol, 316
PPPoE protocol, 316
VPN
bene?¬?ts of, 299
Easy VPN, 301-303
examples of, 298
IPsec SSL VPN, 304-306
remote-access VPN, 300
site-to-site VPN, 299
WebVPN.
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