Ccnp 1 : Advanced Routing Companion Guide (Cisco Networking Academy Program)

by Cisco Systems Inc.

• ISBN13: 9781587131356
• ISBN10: 1587131358
• Edition: 2nd
• Format: Hardcover w/Disk
• Copyright: 2005-01-01
• Publisher: Cisco Press

Summary

bull; Comprehensive, portable desk reference that compliments the online course bull; Written by Networking Academy instructors that are experts in the academic environment bull; Helps prepare for the CCNP BSCI exam

Table of Contents

Foreword	xvii
Introduction	xix
Overview of Scalable Internetworks	3	(28)
The Hierarchical Network Design Model	3	(12)
The Three-Layer Hierarchical Design Model	4	(1)
The Core Layer	5	(1)
The Distribution Layer	6	(1)
The Access Layer	6	(1)
Router Function in the Hierarchy	7	(3)
Core Layer Example	10	(3)
Distribution Layer Example	13	(1)
Access Layer Example	14	(1)
Key Characteristics of Scalable Internetworks	15	(9)
Five Characteristics of a Scalable Network	15	(1)
Making the Network Reliable and Available	16	(1)
Scalable Routing Protocols	17	(1)
Alternative Paths	17	(1)
Load Balancing	18	(1)
Protocol Tunnels	18	(1)
Dial Backup	18	(1)
Making the Network Responsive	19	(1)
Making the Network Efficient	20	(1)
Access Lists	20	(1)
Snapshot Routing	21	(1)
Compression over WANs	21	(1)
Making the Network Adaptable	22	(1)
Mixing Routable and Nonroutable Protocols	22	(1)
Making the Network Accessible but Secure	23	(1)
Basic Router Configuration Lab Exercises	24	(1)
Load Balancing Lab Exercises	25	(1)
Summary	25	(1)
Key Terms	26	(1)
Check Your Understanding	26	(5)
Advanced IP Addressing Management	31	(44)
IPv4 Addressing	32	(7)
Address Architecture of the Internet	32	(1)
Class A and B IP Addresses	33	(1)
Class A Addresses	34	(1)
Class B Addresses	35	(1)
Classes of IP Addresses: C, D, and E	36	(1)
Class C Addresses	36	(1)
Class D Addresses	36	(1)
Class E Addresses	37	(1)
Subnet Masking	37	(2)
IP Addressing Crisis and Solutions	39	(5)
IP Addressing Crisis	39	(1)
Classless Interdomain Routing	40	(1)
Route Aggregation and Supernetting	41	(2)
Supernetting and Address Allocation	43	(1)
VLSM	44	(5)
Variable-Length Subnet Masks	44	(3)
Classless and Classful Routing Protocols	47	(2)
Route Summarization	49	(2)
An Overview of Route Summarization	49	(1)
Route Flapping	50	(1)
Private Addressing and NAT	51	(3)
Private IP Addresses (RFC 1918)	51	(1)
Discontiguous Subnets	52	(1)
Network Address Translation (NAT)	53	(1)
IP Unnumbered	54	(2)
Using IP Unnumbered	55	(1)
DHCP and Easy IP	56	(6)
DHCP Overview	56	(2)
DHCP Operation	58	(1)
Configuring the IOS DHCP Server	59	(2)
Easy IP	61	(1)
Helper Addresses	62	(4)
Using Helper Addresses	62	(1)
Configuring IP Helper Addresses	63	(1)
IP Helper Address Example	64	(2)
IPv6	66	(3)
IP Address Issues Solutions	66	(1)
IPv6 Address Format	67	(2)
Summary	69	(1)
Key Terms	70	(2)
Check Your Understanding	72	(3)
Routing Overview	75	(28)
Routing	75	(12)
Routing Fundamentals	75	(2)
Static Routing	77	(3)
Configuring Dynamic Routing	80	(1)
Routing Protocols for IPX and AppleTalk	80	(1)
IP Routing Protocols and the Routing Table	81	(2)
Distance Vector Routing Protocols	83	(2)
Link-State Routing Protocols	85	(2)
Hybrid Routing Protocol: EIGRP	87	(1)
Default Routing	87	(5)
Default Routing Overview	87	(1)
Configuring Static Default Routes	88	(1)
Default Routing with IGRP	89	(2)
Default Route Caveats	91	(1)
Floating Static Routes	92	(1)
Configuring Floating Static Routes	93	(1)
Convergence	93	(1)
Convergence Issues	94	(1)
Route Calculation	94	(3)
Route Calculation Fundamentals	95	(1)
Multiple Routes to a Single Destination	95	(1)
The Initiation of Routing Updates	96	(1)
Routing Metrics	97	(1)
Summary	97	(1)
Key Terms	98	(1)
Check Your Understanding	99	(4)
Routing Information Protocol Version 2	103	(24)
RIPv2 Overview	103	(13)
RIPv2 Operation	104	(3)
Issues Addressed by RIPv2	107	(1)
RIPv2 Message Format	107	(2)
Compatibility with RIPv1	109	(1)
Classless Route Lookups	110	(1)
Classless Routing Protocols	111	(1)
Authentication	112	(2)
Limitations of RIPv2	114	(2)
Configuring RIPv2	116	(3)
Basic RIPv2 Configuration	116	(1)
Compatibility with RIPv1	116	(2)
Discontiguous Subnets and Classless Routing	118	(1)
Configuring Authentication	118	(1)
Verifying RIPv2 Operation	119	(3)
show Commands	120	(2)
debug Commands	122	(1)
Summary	122	(1)
Key Terms	123	(1)
Check Your Understanding	124	(3)
EIGRP	127	(36)
EIGRP Fundamentals	127	(4)
EIGRP and IGRP Compatibility	128	(2)
EIGRP Design	130	(1)
EIGRP Terminology	131	(1)
EIGRP Features	131	(7)
EIGRP Technologies	132	(1)
Neighbor Discovery and Recovery	132	(1)
Reliable Transport Protocol	133	(1)
DUAL Finite-State Machine	133	(4)
Protocol-Dependent Modules	137	(1)
EIGRP Components	138	(8)
EIGRP Packet Types	138	(1)
Hello Packets	138	(1)
Acknowledgment Packets	139	(1)
Update Packets	139	(1)
Query and Reply Packets	140	(1)
EIGRP Tables	140	(1)
The Neighbor Table	140	(2)
The Topology Table	142	(2)
``Stuck in Active'' Routes	144	(1)
Route Tagging with EIGRP	145	(1)
EIGRP Operation	146	(3)
Convergence Using EIGRP	146	(3)
Configuring EIGRP	149	(7)
Configuring EIGRP for IP Networks	149	(2)
EIGRP and the bandwidth Command	151	(1)
Configuring Bandwidth over a Multipoint Network	151	(1)
Configuring Bandwidth over a Hybrid Multipoint Network	152	(1)
The bandwidth-percent Command	152	(2)
Summarizing EIGRP Routes: no auto-summary	154	(1)
Summarizing EIGRP Routes: Interface Summarization	155	(1)
Monitoring EIGRP	156	(1)
Verifying EIGRP Operation	156	(1)
Summary	157	(1)
Key Terms	158	(2)
Check Your Understanding	160	(3)
OSPF	163	(76)
OSPF Overview	164	(13)
Issues Addressed by OSPF	164	(1)
OSPF Terminology	165	(4)
OSPF States	169	(3)
OSPF Network Types	172	(2)
The OSPF Hello Protocol	174	(3)
OSPF Operation	177	(7)
Steps of OSPF Operation	177	(1)
Step 1: Establish Router Adjacencies	177	(1)
Step 2: Elect a DR and a BDR	178	(2)
Step 3: Discover Routes	180	(1)
Step 4: Select Appropriate Routes	181	(1)
Step 5: Maintain Routing Information	182	(2)
OSPF Configuration and Verification	184	(8)
Configuring OSPF on Routers Within a Single Area	184	(2)
Optional Configuration Commands	186	(1)
Configuring a Loopback Address	186	(1)
Modifying OSPF Router Priority	187	(2)
Configuring Authentication	189	(1)
Configuring OSPF Timers	190	(1)
show Commands	191	(1)
clear and debug Commands	191	(1)
Configuring OSPF over NBMA	192	(9)
NBMA Overview	192	(3)
Full-Mesh Frame Relay	195	(1)
Configuring Subinterfaces to Create Point-to-Point Networks	196	(1)
Partial-Mesh Frame Relay	196	(2)
Point-to-Multipoint OSPF	198	(3)
Multiarea OSPF Operation	201	(13)
Creating Multiple OSPF Areas	201	(3)
OSPF Router Types	204	(1)
OSPF LSA and Area Types	205	(1)
OSPF LSA Types	205	(1)
OSPF Area Type	206	(3)
Configuring OSPF Operation Across Multiple Areas	209	(2)
Flooding LSUs to Multiple Areas	211	(2)
Updating the Routing Table	213	(1)
Opaque LSAs	213	(1)
Multiarea OSPF Configuration and Verification	214	(4)
Using and Configuring OSPF Multiarea Components	214	(1)
Configuring an ABR	214	(1)
Configuring an ASBR	215	(1)
Configuring OSPF Route Summarization	216	(2)
Verifying Multiarea OSPF Operation	218	(1)
Stub, Totally Stubby, and Not-So-Stubby Areas	218	(9)
Using Stub and Totally Stubby Areas	219	(1)
Stub and Totally Stubby Area Criteria	219	(1)
Configuring Stub and Totally Stubby Areas	220	(1)
OSPF Stub Area Configuration Example	221	(1)
OSPF Totally Stubby Area Configuration Example	222	(1)
NSSA Overview	223	(1)
How NSSA Operates	224	(2)
Configuring NSSA	226	(1)
Virtual Links	227	(4)
Meeting the Backbone Area Requirements	227	(2)
Configuring Virtual Links	229	(1)
Virtual Link Configuration Example	229	(2)
Summary	231	(1)
Key Terms	232	(2)
Check Your Understanding	234	(5)
IS-IS	239	(80)
IS-IS Fundamentals	239	(9)
OSI Protocols	240	(2)
OSI Terminology	242	(1)
ES-IS and IS-IS	243	(1)
Integrated IS-IS	244	(2)
OSPF Versus IS-IS	246	(2)
ISO Addressing	248	(7)
NSAPs	248	(2)
NETs	250	(2)
ISO Addressing with Cisco Routers	252	(1)
Identifying Systems in IS-IS	253	(2)
IS-IS Operation	255	(29)
High-Level View of IS-IS Operation	256	(1)
OSI PDUs	256	(3)
IS-IS Hello Messages	259	(3)
IS-IS Link-State PDU (LSP) Formats	262	(5)
IS-IS Routing Levels	267	(4)
IS-IS Adjacencies	271	(3)
Designated Intermediate Systems (DIS) and Pseudonodes (PSN)	274	(1)
IS-IS Data Flow	275	(1)
LSP Flooding and Synchronization	276	(5)
IS-IS Metrics	281	(1)
Default Metric	281	(1)
Extended Metric	282	(1)
IS-IS Network Types	282	(1)
SPF Algorithm	283	(1)
IP Routing with Integrated IS-IS	284	(10)
OSI, IP, and Dual	284	(1)
Suboptimal IS-IS Routing	285	(1)
Suboptimal Routing	286	(3)
Intra-Area and Interarea Integrated IS-IS Routing Example	289	(4)
Building the IP Forwarding Table	293	(1)
Configuration of Integrated IS-IS	294	(10)
Basic Configuration of Integrated IS-IS	294	(3)
Multiarea Integrated IS-IS Configuration	297	(7)
Integrated IS-IS Operation in a WAN Environment	304	(9)
Point-to-Point and Point-to-Multipoint Operation with IS-IS	304	(1)
Configuring Integrated IS-IS in a WAN Environment	305	(1)
Frame Relay Point-to-Point Scenario with Integrated IS-IS	305	(3)
Frame Relay Point-to-Multipoint Scenario with Integrated IS-IS	308	(3)
Detecting Mismatched Interfaces with Integrated IS-IS	311	(2)
Summary	313	(1)
Key Terms	314	(2)
Check Your Understanding	316	(3)
Route Optimization	319	(34)
Controlling Routing Update Traffic	319	(7)
Controlling Routing Updates	319	(1)
Passive Interfaces	320	(3)
Filtering Routing Updates with distribute-list	323	(2)
Configuring a Passive EIGRP Interface Using the distribute-list Command	325	(1)
Policy Routing	326	(2)
Policy Routing Overview	326	(1)
Policy Routing Example	327	(1)
Route Redistribution	328	(15)
Redistribution Overview	328	(2)
Administrative Distance	330	(2)
Modifying Administrative Distance by Using the distance Command	332	(1)
Redistribution Guidelines	333	(1)
Configuring One-Way Redistribution	334	(4)
Configuring Two-Way Redistribution	338	(2)
Redistributing Connected and Static Routes	340	(1)
The default-metric Command	341	(1)
Verifying Redistribution Operation	342	(1)
Redistribution Example	343	(5)
Phase 1: Configuring a RIP Network	343	(1)
Phase 2: Adding OSPF to the Core of a RIP Network	343	(3)
Phase 3: Adding OSPF Areas	346	(2)
Summary	348	(1)
Key Terms	349	(1)
Check Your Understanding	350	(3)
BGP	353	(70)
Autonomous Systems	353	(6)
Overview of Autonomous Systems	353	(2)
Single-Homed Autonomous Systems	355	(1)
Multihomed Nontransit Autonomous Systems	356	(1)
Multihomed Transit Autonomous Systems	357	(1)
When Not to Use BGP	358	(1)
Basic BGP Operation	359	(8)
BGP Routing Updates	359	(1)
BGP Neighbors	360	(1)
BGP Message Types	361	(2)
BGP Neighbor Negotiation	363	(1)
The BGP FSM	363	(2)
Network Layer Reachability Information	365	(1)
Withdrawn Routes	365	(1)
Path Attributes	366	(1)
Configuring BGP	367	(9)
Basic BGP Configuration	367	(2)
EBGP and IBGP	369	(1)
EBGP and IBGP Configuration Example	369	(2)
EBGP Multihop	371	(1)
Clearing the BGP Table	372	(1)
Peering	373	(2)
BGP Continuity Inside an AS	375	(1)
Monitoring BGP Operation	376	(2)
Verifying BGP Operation	377	(1)
The BGP Routing Process	378	(4)
An Overview of the BGP Routing Process	379	(1)
The BGP Routing Process Model	379	(1)
Implementing BGP Routing Policy	380	(2)
BGP Attributes	382	(14)
Controlling BGP Routing with Attributes	382	(1)
The Next Hop Attribute	383	(1)
Next-Hop Behavior on Multiaccess Media	384	(1)
Next-Hop Behavior on NBMA Networks	385	(1)
The AS_Path Attribute	386	(1)
AS_Path and Private AS Numbers	387	(2)
The Atomic Aggregate Attribute	389	(1)
The Aggregator Attribute	390	(1)
The Local Preference Attribute	390	(1)
Manipulating Local Preference	391	(2)
The Weight Attribute	393	(1)
The Multiple Exit Discriminator Attribute	393	(2)
MED Configuration Example	395	(1)
The Origin Attribute	396	(1)
The BGP Decision Process	396	(1)
BGP Route Filtering and Policy Routing	397	(7)
BGP Route Filtering	397	(2)
Using Filters to Implement Routing Policy	399	(1)
Using the distribute-list Command to Filter BGP Routes	399	(3)
The ip prefix-list Command	402	(1)
Sample ip prefix-list Configuration	403	(1)
Redundancy, Symmetry, and Load Balancing	404	(9)
Issues with Redundancy, Symmetry, and Load Balancing	405	(1)
Redundancy, Symmetry, and Load Balancing	405	(2)
Default Routing in BGP Networks	407	(2)
Symmetry	409	(1)
Load Balancing	409	(1)
Multihomed Connections	410	(3)
BGP Redistribution	413	(4)
BGP Redistribution Overview	413	(1)
Injecting Unwanted or Faulty Information	414	(1)
Injecting Information Statically into BGP	415	(1)
BGP Redistribution Configuration Example	415	(2)
Summary	417	(1)
Key Terms	418	(1)
Check Your Understanding	419	(4)
Appendix A Glossary of Key Terms	423	(10)
Appendix B Answers to the Check Your Understanding Questions	433	(22)
Appendix C Case Studies	455	(6)
Index	461