|
SAA (Service Assurance Agents), 576
SAFE (Security Blueprint for Enterprise Networks), 487–490, 576
sampling rate, 576
SAP (Service Advertising Protocol), 137, 140
SAP (service access point), 576
SAP (Service Advertising Protocol), 576
scalability, 577
of hierarchical network, 191–192
link-state protocols limitations, 316
of routing protocols, 314–315
VLANs and, 92–95
SCR (sustainable cell rate), 577
script, for pilot demonstration, 463
SDLC (Synchronous Data Link Control) protocol, 33, 231, 577
SDSL (symmetric DSL), 244
secondary ring in FDDI, 41
secondary stations for SDLC, 231
Secure Shell Protocol (SSH), 577
Secure Sockets Layer (SSL), 577
security, 478–490
access lists, 481, 519
evaluating network needs andexpectations, 167
exam essentials, 496
firewall, 479, 479–482, 481
for hosts, 485
policy components, 485–487
access control, 486
intrusion-detection devices, 486
physical security, 485–486
secure device management, 486–487
real world scenarios, 168, 480
reports, 487
for routers and switches, 482–483
targets of hackers, 482–485
VLANs and, 90, 91–92
Security Blueprint for Enterprise Networks (Cisco SAFE), 487–490
module concept, 488, 488–490
seed router, 577
segmentation, 577
with bridge, 70–71, 71
with router, 71–73
segmentation and reassembly sublayer, in ATM Adaptation layer, 47
Sequence Packet Exchange (SPX), 137,581–582
Serial Line Address Resolution Protocol (SLARP), 131
Serial Line Internet Protocol (SLIP), 579
Serial Line IP (SLIP), 34
Serial Tunnel (STUN), 584
serialization, 577
server, 577
addresses, 294
Server Farm module, 199
security risks, 490
Server Provider Edge functional area, 489
server/server communication, in Novell IPX, 139–140
service access point (SAP), 576
Service Advertising Protocol (SAP), 137,140, 576
Service Assurance Agents (SAA), 576
service level agreement (SLA), 578
service-level contract (SLC), 578–579
service level manager (SLM), 443–444, 579
service profile identifiers (SPIDs), 234, 581
service provider, 578
Session layer (OSI), 19–21, 578
set spantree portfast command, 387
SetRequest message (SNMP), 436
SF (super frame), 578
Shielded-Twisted Pair (STP), 583
ships-in-the-night routing, 314
Shortest Path First algorithm (SPF), 581
show interface command, 286
show-running command, 293
signaling, 492
signaling packet, 578
Signaling System 7, 578
significant bits, 578
silicon switching, 578
for WANs, 227
Silicon Switching Engine (SSE), 582
Simple Mail Transfer Protocol (SMTP),124, 579
Simple Network Management Protocol (SNMP), 18, 434–437, 579
exam essentials, 446
simplex mode, 19
single attachment stations in FDDI, 41
single-route explorer packet, 391
SLA (service level agreement), 578
SLARP (Serial Line Address Resolution Protocol), 131
SLC (service-level contract), 578
sliding window, 579
SLIP (Serial Line Internet Protocol), 34, 579
SLM (service level manager), 443–444, 579
SMDS (switched multimegabit dataservice), 579
smooth round trip timer (SRTT), 335
SMTP (Simple Mail Transfer Protocol),124, 579
SNA (Systems Network Architecture), 3, 579
SNAP (Subnetwork Access Protocol), 579
SNMP (Simple Network Management Protocol), 18, 434–437, 579
communications, 436–437
exam essentials, 446
functionality, 435–436
RFCs for, 434–435
sockets, 580
for IPX, 137
software image, 123
SONET (Synchronous Optical Network), 580
source address in data frame, 30
source-route bridging (SRB), 390–391, 582
source-route translational bridging, 392, 582
source-route transparent bridging (SRT),391–392, 582
source service access points (SSAPs), 31, 582
SP (switch processor), 580
span, 580
SPAN (Switched Port Analyzer), 580
spanning explorer packet, 391, 580
spanning tree, 580
spanning-tree algorithm (STA), 84, 580
Spanning-Tree PortFast, real world scenarios, 386–387
Spanning-Tree Protocol (STP), 68, 77–78,84–85, 581
SPF (Shortest Path First algorithm), 581
SPIDs (service profile identifiers), 234, 581
split-horizon, 320, 331, 332
updates, 581
spoofing, 581
spooler, 581
SPX (Sequence Packet Exchange), 137, 581–582
SQE (signal quality error), 582
SQL (Structured Query Language), 21
SR/TLB (Source-Route Translational Bridging), 392, 582
SRB (Source-Route Bridging), 390–391, 582
SRT (Source-Route Transparent) bridging, 391–392, 582
SRTT (smooth round trip timer), 335
SSAPs (source service access points), 31, 582
SSE (Silicon Switching Engine), 582
SSH (Secure Shell Protocol), 577
SSL (Secure Sockets Layer), 577
STA (Spanning Tree Algorithm), 84, 580
standard area, for OSPF, 361
standby monitors on Token Ring network,45, 582
standby router in HSRP, 202
star topology, 582–583
start indicator of data frame, 30
startup range, 583
state transitions, 34
static addressing, 583
static route, 583
static VLANs, 95–96, 583
statistical multiplexing, 583
Statistics group in RMON, 439
STM-1 (Synchronous Transport ModuleLevel 1), 583
store-and-forward switching, 87, 583
STP (Spanning-Tree Protocol), 68, 77–78,84–85, 581
STP (Shielded-Twisted Pair), 583
Structured Query Language (SQL), 21
stub area flag, for OSPF, 359
stub areas, 583–584
in OSPF, 361, 374–375
stub network, 326, 584
STUN (Serial Tunnel), 584
subarea, 584
subarea node, 584
subchannel, 584
subinterfaces, 240–241, 584
defining, 242
subnet
/31, 286–288
calculating number of hosts available, 257
subnet address, 584
subnet mask, 256–257, 584
display format configuration, 282–283
point-to-point, 286
subnetting, 256, 584
subnetwork, 584
Subnetwork Access Protocol (SNAP), 579
summary-address command, 374
summary entry LSA, 361
summary, in design document, 461
super frame (SF), 578
supernetting. See route summarization
sustainable cell rate (SCR), 577
SVC (switched virtual circuit), 585
switch fabric, 92, 585
switch processor (SP), 580
switched LAN, 585
switched multimegabit data service(SMDS), 579
Switched Port Analyzer (SPAN), 580
switched virtual circuit (SVC), 585
switches, 8, 89, 585. See also Layer 2 switching
vs. bridges, 74
and collisions, 70
for LANs, 86–87
real world scenario on configuration, 88
redundant links between, 77–78
security, 482–483
switching
autonomous, 226–227
distributed, 227
Fast, 226
NetFlow, 228
optimum, 227
process, 226
silicon, 227
switching path, 225
symmetric DSL (SDSL), 244
Synchronous Data Link Control (SDLC) protocol, 33, 231, 577
Synchronous Optical Network (SONET), 580
synchronous transmission, 585
Synchronous Transport Module Level 1(STM-1), 583
Syslog data, 487
system routes, in IGRP, 329
Systems Network Architecture (SNA), 3, 579
|