Cisco Nexus 7000 Series - Configuration Guide Manual

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Cisco Nexus 7000 Series NX-OS Unicast

Routing Configuration Guide, Release 4.x

April 18, 2011

Text Part Number: OL-20002-02

Main Page

Default Chapter3
- Table of Contents3
New and Changed Information25
- Document Conventions28
- Related Documentation29
- Obtaining Documentation and Submitting a Service Request30
- Overview31
CHAPTER 1 Overview 1-132
- Routing Fundamentals32
- Routing Metrics33
- Routing Algorithms38
  - Distance Vector Protocols39
  - Layer 3 Virtualization40
- Unicast RIB41
- Adjacency Manager41
- Unicast Forwarding Distribution Module42
- Fib42
Chapter 2 Configuring Ipv449
- Information about Ipv449
Information about Ipv451
Configuring Ipv452
- Devices that Do Not Use ARP52
- Reverse ARP52
- Configuring Ipv453
- Gratuitous ARP53
- Local Proxy ARP53
- Proxy ARP53
- Configuring IP Directed Broadcasts62
Ipv4 Example Configuration63
- Verifying the Ipv4 Configuration63
Default Settings63
Additional References63
- Related Documents64
- Standards64
Feature History for IP64
Chapter 3 Configuring Ipv665
- Information about Ipv665
- Ipv4 Packet Header73
- Simplified Ipv6 Packet Header73
- DNS for Ipv676
- Path MTU Discovery for Ipv676
- CDP Ipv6 Address Support76
- ICMP for Ipv676
- Ipv6 Neighbor Discovery77
- Ipv6 Neighbor Solicitation Message77
- Ipv6 Router Advertisement Message79
- Ipv6 Neighbor Redirect Message80
  - Configuring Ipv681
Virtualization Support81
- Configuring Ipv6 Addressing83
- Configuring Ipv6 Neighbor Discovery84
- Optional Ipv6 Neighbor Discovery86
- Configuring Ipv6 Packet Verification87
- Additional References88
  - Related Documents89
  - Standards89
- Default Settings88
- Ipv6 Example Configuration88
- Verifying the Ipv6 Configuration88
- Feature History for Ipv689
Chapter 4 Configuring DNS91
- Information about DNS Clients91
- Licensing Requirements for DNS Clients92
- Prerequisites for DNS Clients93
- Configuration Guidelines and Limitations93
- Configuring DNS Clients93
  - Configuring the DNS Client93
  - Configuring Virtualization95
- Verifying the DNS Client Configuration97
- DNS Client Example Configuration97
- Default Settings97
- Additional References98
  - Related Documents98
  - Standards98
- Feature History for DNS98
CHAPTER 5 Configuring Wccpv2 5-199
- Information about Wccpv299
Information about Wccpv2100
- Redirection102
- Wccpv2 Designated Cache Engine102
- Configuring Wccpv2104
  - Enabling the Wccpv2 Feature105
- Licensing Requirements for Wccpv2104
- Prerequisites for Wccpv2104
- Guidelines and Limitations for Wccpv2104
Configuring Wccpv2105
- Verifying Wccpv2 Configuration110
Feature History for Wccpv2112
Routing113
CHAPTER 6 Configuring Ospfv2115
- Information about Ospfv2115
- Link-State Advertisements119
- Ospfv2 and the Unicast RIB121
- Authentication121
  - Simple Password Authentication122
  - MD5 Authentication122
- Advanced Features122
- Licensing Requirements for Ospfv2126
- Prerequisites for Ospfv2127
- Configuration Guidelines and Limitations127
- Configuring Basic Ospfv2128
- Configuring Advanced Ospfv2137
- Verifying the Ospfv2 Configuration158
- Displaying Ospfv2 Statistics159
- Ospfv2 Example Configuration159
- Default Settings159
  - Additional References160
  - Related Documents161
- Mibs161
  - Feature History for Ospfv2161
CHAPTER 7 Configuring Ospfv3163
- Information about Ospfv3163
- Licensing Requirements for Ospfv3174
- Prerequisites for Ospfv3174
- Configuration Guidelines and Limitations175
- Configuring Basic Ospfv3175
- Configuring Advanced Ospfv3181
- Verifying Ospfv3 Configuration202
- Displaying Ospfv3 Statistics202
- Ospfv3 Example Configuration203
- Related Topics203
- Default Settings203
- Additional References204
  - Related Documents205
- Mibs205
Chapter 8 Configuring EIGRP208
- Diffusing Update Algorithm209
- EIGRP Route Updates209
- Advanced EIGRP210
- Licensing Requirements for EIGRP214
- Prerequisites for EIGRP214
- Configuration Guidelines and Limitations215
- Configuring Basic EIGRP215
- Configuring Advanced EIGRP220
- Configuring Virtualization for EIGRP234
- Verifying EIGRP Configuration236
- Displaying EIGRP Statistics236
- EIGRP Example Configuration236
- Related Topics237
- Default Settings237
- Additional References237
  - Related Documents238
- Mibs238
  - Feature History for EIGRP238
Configuring IS-IS239
- Information about IS-IS239
  - IS-IS Overview240
Chapter 9 Configuring I-I240
- NET and System ID241
- Designated Intermediate System241
- IS-IS Authentication241
- Mesh Groups242
- Overload Bit242
- Route Summarization242
- Route Redistribution243
- Load Balancing243
- Virtualization Support243
- Configuring IS-IS243
- Verifying IS-IS Configuration266
- Displaying IS-IS Statistics267
- IS-IS Example Configuration267
- Related Topics268
- Default Settings268
- Additional References268
  - Related Documents269
  - Standards269
- Feature History for IS-IS269
- Configuring Basic BGP271
- Information about Basic BGP271
  - BGP Autonomous Systems272
    - 4-Byte as Number Support272
  - Administrative Distance272
Chapter 10 Configuring Basic BGP272
- BGP Peers273
  - BGP Sessions273
  - Dynamis as Numbers for Prefix Peers273
- BGP Router Identifier274
- BGP Path Selection274
- BGP and the Unicast RIB277
- BGP Virtualization277
- Licensing Requirements for Basic BGP277
- Prerequisites for BGP277
- Guidelines and Limitations for BGP278
- CLI Configuration Modes278
- Configuring Basic BGP280
- Verifying Basic BGP Configuration291
- Displaying BGP Statistics293
- Basic BGP Example Configuration293
- Related Topics293
- Where to Go Next294
- Default Settings294
- Additional References294
  - Related Documents295
- Mibs295
Chapter 11 Configuring Advanced BGP298
- Route Policies and Resetting BGP Sessions299
- Ebgp299
- Ibgp299
- Issu307
- Mibs341
  - Feature History for BGP341
Configuring RIP343
- Information about RIP343
Chapter 12 Configuring RIP345
- Load Balancing346
- High Availability346
- Virtualization Support346
- Licensing Requirements for RIP346
- Prerequisites for RIP346
- Configuration Guidelines and Limitations346
- Configuring RIP347
- Verifying RIP Configuration359
- Displaying RIP Statistics359
- RIP Example Configuration360
- Related Topics360
- Default Settings360
- Additional References360
  - Related Documents361
  - Standards361
- Feature History for RIP361
CHAPTER 13 Configuring Static Routing363
- Information about Static Routing363
- Licensing Requirements for Static Routing365
- Prerequisites for Static Routing365
- Guidelines and Limitations365
- Configuring Static Routing365
  - Configuring a Static Route366
  - Configuring Virtualization367
- Verifying Static Routing Configuration368
- Static Routing Example Configuration368
- Default Settings369
- Additional References369
  - Related Documents369
- Feature History for Static Routing369
CHAPTER 14 Configuring Layer 3 Virtualization371
- Layer 3 Virtualization371
- Licensing Requirements for Vrfs375
- Prerequisites for VRF376
- Guidelines and Limitations376
- Configuring Vrfs376
- Verifying VRF Configuration383
- VRF Example Configuration383
- Related Topics384
- Default Settings384
- Additional References385
  - Related Documents385
  - Standards385
- Feature History for VRF385
CHAPTER 15 Managing the Unicast RIB and FIB387
- Information about the Unicast RIB and FIB387
- Licensing Requirements for the Unicast RIB and FIB389
- Guidelines and Limitations389
- Managing the Unicast RIB and FIB390
- Verifying the Unicast RIB and FIB399
- Additional References400
  - Related Documents400
- Feature History for Unicast RIB and FIB400
CHAPTER 16 Configuring Route Policy Manager401
- Information about Route Policy Manager401
- Licensing Requirements for Route Policy Manager405
- Prerequisites for Route Policy Manager405
- Guidelines and Limitations405
- Configuring Route Policy Manager406
- Verifying Route Policy Manager Configuration417
- Route Policy Manager Example Configuration417
- Related Topics418
- Default Settings418
- Additional References418
  - Related Documents419
  - Standards419
- Feature History for Route Policy Manager419
CHAPTER 17 Configuring Policy-Based Routing421
- Information about Policy Based Routing421
  - Policy Route Maps422
  - Set Criteria for Policy-Based Routing422
- Licensing Requirements for Policy-Based Routing423
- Prerequisites for Policy-Based Routing423
- Guidelines and Limitations423
- Configuring Policy-Based Routing423
  - Enabling the Policy-Based Routing Feature424
  - Configuring a Route Policy425
- Verifying Policy-Based Routing Configuration427
- Policy Based-Routing Example Configuration427
- Related Topics428
- Default Settings428
- Additional References428
  - Related Documents429
  - Standards429
- Feature History for Policy-Based Routing429
First-Hop Redundancy Protocols431
- Configuring GLBP433
- Information about GLBP433
Chapter 18 Configuring GLBP434
- GLBP Virtual Gateway Redundancy435
- GLBP Virtual Forwarder Redundancy435
- GLBP Authentication436
- GLBP Load Balancing and Tracking437
- High Availability438
- Virtualization Support438
- Licensing Requirements for GLBP438
- Prerequisites for GLBP438
- Guidelines and Limitations439
- Configuring GLBP439
- Verifying GLBP Configuration447
- GLBP Example Configuration447
- Default Settings448
- Additional References448
  - Related Documents449
  - Standards449
- Feature History for GLBP449
- Configuring HSRP451
- Information about HSRP451
  - HSRP Overview452
Chapter 19 Configuring HSRP452
- HSRP Versions453
- HSRP Authentication454
- HSRP Addressing454
- HSRP Messages454
- HSRP Load Sharing454
- Object Tracking and HSRP455
- Vpc and HSRP455
- High Availability and Extended Non-Stop Forwarding456
- Virtualization Support456
- Licensing Requirements for HSRP456
- Prerequisites for HSRP456
- Guidelines and Limitations457
- Configuring HSRP457
- Verifying HSRP Configuration467
- HSRP Example Configuration467
- Default Settings468
- Additional References468
  - Related Documents469
- Mibs469
  - Feature History for HSRP469
CHAPTER 20 Configuring VRRP471
- Information about VRRP471
- Licensing Requirements for VRRP476
- Guidelines and Limitations476
- Configuring VRRP477
- Verifying the VRRP Configuration489
- Displaying VRRP Statistics490
- VRRP Example Configuration490
- Default Settings491
- Additional References492
  - Related Documents492
- Feature History for VRRP492
CHAPTER 21 Configuring Object Tracking493
- Information about Object Tracking493
  - Object Tracking Overview494
Appendix509
- IETF Rfcs Supported by Cisco NX-OS Unicast Features, Release509
G L O S S a R y513
Appendix521
- Configuration Limits for Cisco NX-OS Layer 3 Unicast Features, Release 4.X522
I N D E X523

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