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Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.1.x
512
OL-30423-03
Implementing Routing Policy
Attach Points
539
541
Table of Contents
Default Chapter
4
Table of Contents
4
Obtaining Documentation and Submitting a Service Request
27
Configuring Nonstop Forwarding Specific to Cisco for OSPF Version
30
Chapter
32
Chapter
34
Bgp Configuration
42
VRF Configuration Mode
43
VRF Address Family Configuration Mode
44
Family
44
Configuring Resilient Per-CE Label Allocation Mode Using a Route-Policy
46
VRF Neighbor Configuration Mode
47
VRF Neighbor Address Family Configuration Mode
47
Vpnv4 Address Family Configuration Mode
47
L2VPN Address Family Configuration Mode
48
Neighbor Submode
48
Configuration Templates
49
Template Inheritance Rules
50
Viewing Inherited Configurations
53
Show Bgp Neighbors
54
Show Bgp Af-Group
55
Show Bgp Session-Group
56
Show Bgp Neighbor-Group
57
Neighbor Address Family Combinations
58
No Default Address Family
58
Routing Policy Enforcement
59
Table Policy
60
BGP Cost Community
61
How BGP Cost Community Influences the Best Path Selection Process
62
Cost Community Support for Aggregate Routes and Multipaths
63
Influencing Route Preference in a Multiexit IGP Network
64
BGP Cost Community Support for EIGRP MPLS VPN PE-CE with Back-Door Links
65
Adding Routes to the Routing Information Base
66
Update Groups
61
BGP Update Generation and Update Groups
61
BGP Update Group
61
BGP Best Path Algorithm
66
Comparing Pairs of Paths
67
Order of Comparisons
68
Best Path Change Suppression
69
Administrative Distance
70
Multiprotocol BGP
71
Route Dampening
73
Minimizing Flapping
74
BGP Route Reflectors
74
BGP Routing Domain Confederation
74
Default Address Family for Show Commands
78
MPLS VPN Carrier Supporting Carrier
78
BGP Keychains
79
BGP Nonstop Routing
79
BGP Local Label Retention
80
BGP Additional Paths
81
Command Line Interface (CLI) Consistency for BGP Commands
81
Ibgp Multipath Load Sharing
81
BGP Selective Multipath
82
Accumulated Interior Gateway Protocol Attribute
84
Ipv4 BGP-Policy Accounting on Cisco ASR 9000'S A9K-SIP-700
84
Per VRF and Per CE Label for Ipv6 Provider Edge
84
Ipv6 Unicast Routing on Cisco ASR 9000'S A9K-SIP-700
85
Ipv6 Urpf Support on Cisco ASR 9000'S A9K-SIP-700
85
Remove and Replace Private as Numbers from as Path in BGP
85
Selective VRF Download
86
Line Card Roles and Filters in Selective VRF Download
86
Selective VRF Download Disable
87
Calculating Routes Downloaded to Line Card with or Without SVD
87
BGP Accept Own
89
BFD Multihop Support for BGP
91
BGP DMZ Link Bandwidth for Unequal Cost Recursive Load Balancing
91
BGP Multi-Instance and Multi-AS
91
BGP Prefix Origin Validation Based on RPKI
92
Configuring RPKI Cache-Server
92
Configuring RPKI Prefix Validation
95
Configuring RPKI Bestpath Computation
96
BGP 3107 PIC Updates for Global Prefixes
97
BGP Prefix Independent Convergence for RIB and FIB
98
BGP Update Message Error Handling
99
BGP Attribute Filtering
99
BGP Attribute Filter Actions
99
BGP Error Handling and Attribute Filtering Syslog Messages
100
BGP Link-State
100
BGP Permanent Network
101
BGP-RIB Feedback Mechanism for Update Generation
101
BGP VRF Dynamic Route Leaking
102
User Defined Martian Check
102
Resilient Per-CE Label Allocation Mode
103
How to Implement BGP
103
Enabling BGP Routing
103
Configuring Multiple BGP Instances for a Specific Autonomous System
106
Configuring a Routing Domain Confederation for BGP
106
Resetting an Ebgp Session Immediately Upon Link Failure
107
Logging Neighbor Changes
108
Adjusting BGP Timers
108
Changing the BGP Default Local Preference Value
109
Configuring the MED Metric for BGP
110
Configuring BGP Weights
111
Tuning the BGP Best-Path Calculation
112
Indicating BGP Back-Door Routes
113
Configuring Aggregate Addresses
114
Redistributing Ibgp Routes into IGP
115
Redistributing Prefixes into Multiprotocol BGP
116
Configuring BGP Route Dampening
118
Applying Policy When Updating the Routing Table
123
Setting BGP Administrative Distance
124
Configuring a BGP Neighbor Group and Neighbors
124
Configuring a Route Reflector for BGP
127
Configuring BGP Route Filtering by Route Policy
128
Configuring BGP Attribute Filtering
130
Configuring BGP Next-Hop Trigger Delay
131
Disabling Next-Hop Processing on BGP Updates
132
Configuring BGP Community and Extended-Community Advertisements
133
Configuring the BGP Cost Community
135
Configuring Software to Store Updates from a Neighbor
138
Configuring a VPN Routing and Forwarding Instance in BGP
140
Defining Virtual Routing and Forwarding Tables in Provider Edge Routers
140
Configuring the Route Distinguisher
142
Configuring PE-PE or PE-RR Interior BGP Sessions
143
Communities
146
Configuring BGP as a PE-CE Protocol
147
Redistribution of Igps to BGP
151
Configuring Keychains for BGP
153
Disabling a BGP Neighbor
154
Resetting Neighbors Using BGP Inbound Soft Reset
155
Resetting Neighbors Using BGP Outbound Soft Reset
156
Resetting Neighbors Using BGP Hard Reset
157
Clearing Caches, Tables, and Databases
158
Displaying System and Network Statistics
159
Displaying BGP Process Information
160
Monitoring BGP Update Groups
162
Configuring BGP Nonstop Routing
163
Installing Primary Backup Path for Prefix Independent Convergence (PIC)
164
Retaining Allocated Local Label for Primary Path
165
Configuring BGP Additional Paths
166
Configuring Ibgp Multipath Load Sharing
167
Originating Prefixes with Aigp
168
Configuring BGP Accept Own
170
Configuring BGP Link-State
171
Configuring Domain Distinguisher
172
Configuring BGP Permanent Network
173
How to Advertise Permanent Network
175
Enabling BGP Unequal Cost Recursive Load Balancing
176
Configuring VRF Dynamic Route Leaking
178
Enabling Selective VRF Download
180
Disabling Selective VRF Download
182
Configuring Resilient Per-CE Label Allocation Mode
183
Configuring Resilient Per-CE Label Allocation Mode under VRF Address Family
183
Configuring Resilient Per-CE Label Allocation Mode Using a Route-Policy
185
Configuration Examples for Implementing BGP
187
Enabling BGP: Example
187
Displaying BGP Update Groups: Example
188
BGP Neighbor Configuration: Example
189
BGP Confederation: Example
189
BGP Route Reflector: Example
191
BGP Nonstop Routing Configuration: Example
191
Primary Backup Path Installation: Example
192
Allocated Local Label Retention: Example
192
Ibgp Multipath Loadsharing Configuration: Example
192
Originating Prefixes with Aigp: Example
192
BGP Accept Own Configuration: Example
193
BGP Unequal Cost Recursive Load Balancing: Example
193
VRF Dynamic Route Leaking Configuration: Example
195
Resilient Per-CE Label Allocation Mode Configuration: Example
196
Example
196
Additional References
196
Where to Go Next
196
Chapter 3 Implementing BFD
201
Prerequisites for Implementing BFD
203
Restrictions for Implementing BFD
204
Information about BFD
205
Differences in BFD in Cisco IOS XR Software and Cisco IOS Software
205
BFD Multipath Sessions Support on Nv Edge System
206
BFD Modes of Operation
206
BFD Packet Information
207
BFD Source and Destination Ports
207
BFD Packet Intervals and Failure Detection
207
BFD Packet Intervals on Physical Interfaces
207
BFD Packet Intervals on Bundle Member Links
208
Control Packet Failure Detection in Asynchronous Mode
208
Echo Packet Failure Detection in Asynchronous Mode
208
Echo Failure Detection Examples
209
Interfaces
210
Echo Packet Latency
211
Priority Settings for BFD Packets
211
BFD for Ipv4
212
Enabling BFD on a Static Route
213
BFD for Ipv6
215
BFD on Bundled Vlans
215
BFD over Member Links on Link Bundles
216
Overview of BFD State Change Behavior on Member Links and Bundle Status
216
BFD Multipath Sessions
218
BFD for Multihop Paths
218
Setting up BFD Multihop
219
BFD over MPLS Traffic Engineering Lsps
219
Bidirectional Forwarding Detection over Logical Bundle
219
Bidirectional Forwarding Detection over Generic Routing Encapsulation
220
Bidirectional Forwarding Detection Ipv6 Multihop
220
BFD over Pseudowire Headend
221
BFD over Satellite Interfaces
221
BFD over IRB
221
BFD over Bundle Per-Member Link
222
BFD Dampening
223
BFD Hardware Offload
223
BFD Object Tracking
224
How to Configure BFD
224
BFD Configuration Guidelines
224
Configuring BFD under a Dynamic Routing Protocol or Using a Static Route
225
Enabling BFD on a BGP Neighbor
225
Enabling BFD for OSPF on an Interface
227
Enabling BFD for Ospfv3 on an Interface
228
Enabling BFD on a Static Route
230
Configuring BFD on Bundle Member Links
232
Prerequisites for Configuring BFD on Bundle Menmber Links
232
Specifying the BFD Destination Address on a Bundle
232
Enabling BFD Sessions on Bundle Members
232
Configuring the Minimum Thresholds for Maintaining an Active Bundle
233
Bundle
234
Configuring BFD Packet Transmission Intervals and Failure Detection Times on a Bundle
234
Bundle
236
Enabling Echo Mode to Test the Forwarding Path to a BFD Peer
237
Overriding the Default Echo Packet Source Address
237
Specifying the Echo Packet Source Address Globally for BFD
237
Specifying the Echo Packet Source Address on an Individual Interface or Bundle
238
Configuring BFD Session Teardown Based on Echo Latency Detection
239
Delaying BFD Session Startup until Verification of Echo Path and Latency
240
Disabling Echo Mode
241
Disabling Echo Mode on a Router
241
Disabling Echo Mode on an Individual Interface or Bundle
242
Minimizing BFD Session Flapping Using BFD Dampening
243
Enabling and Disabling Ipv6 Checksum Support
244
Enabling and Disabling Ipv6 Checksum Calculations for BFD on a Router
244
Or Bundle
245
Clearing and Displaying BFD Counters
246
Blb
247
Configuring Coexistence between BFD over Bundle (Bob) and BFD over Logical Bundle BLB)
247
Configuring BFD Ipv6 Multihop
248
Configuring BFD Ipv6 Multihop for Ebgp Neighbors
248
Configuring BFD Ipv6 Multihop for Ibgp Neighbors
249
Configuring BFD over MPLS Traffic Engineering Lsps
250
Enabling BFD Parameters for BFD over te Tunnels
250
Configuring BFD Bring up Timeout
251
Configuring BFD Dampening for te Tunnels
252
Configuring Periodic LSP Ping Requests
253
Configuring BFD at the Tail End
254
Configuring BFD over LSP Sessions on Line Cards
255
Configuring BFD Object Tracking
256
Configuration Examples for Configuring BFD
257
BFD over BGP: Example
257
BFD over OSPF: Examples
257
BFD over Static Routes: Examples
258
BFD on Bundled Vlans: Example
258
BFD on Bundle Member Links: Examples
259
Echo Packet Source Address: Examples
260
Echo Latency Detection: Examples
261
Echo Startup Validation: Examples
261
BFD Echo Mode Disable: Examples
261
BFD Dampening: Examples
262
BFD Ipv6 Checksum: Examples
262
BFD Peers on Routers Running Cisco IOS and Cisco IOS XR Software: Example
263
Configuring BFD Ipv6 Multihop: Examples
263
BFD over MPLS te Lsps: Examples
264
BFD over MPLS te Tunnel Head-End Configuration: Example
264
BFD over MPLS te Tunnel Tail-End Configuration: Example
264
Where to Go Next
264
Additional References
264
Related Documents
265
Standards
265
Rfcs
265
Mibs
265
Technical Assistance
266
Implementing EIGRP
267
Prerequisites for Implementing EIGRP
268
Restrictions for Implementing EIGRP
268
Information about Implementing EIGRP
268
EIGRP Functional Overview
268
EIGRP Features
269
EIGRP Components
269
EIGRP Configuration Grouping
270
EIGRP Configuration Modes
270
EIGRP Interfaces
271
Redistribution for an EIGRP Process
272
Metric Weights for EIGRP Routing
272
Mismatched K Values
272
Goodbye Message
273
Percentage of Link Bandwidth Used for EIGRP Packets
273
Floating Summary Routes for an EIGRP Process
273
Split Horizon for an EIGRP Process
275
Adjustment of Hello Interval and Hold Time for an EIGRP Process
276
Stub Routing for an EIGRP Process
276
Route Policy Options for an EIGRP Process
277
EIGRP Layer 3 VPN PE-CE Site-Of-Origin
278
Router Interoperation with the Site-Of-Origin Extended Community
278
Route Manipulation Using Soo Match Condition
279
EIGRP V4/V6 Authentication Using Keychain
280
EIGRP Wide Metric Computation
280
EIGRP Multi-Instance
281
How to Implement EIGRP
281
Enabling EIGRP Routing
281
Configuring Route Summarization for an EIGRP Process
283
Redistributing Routes for EIGRP
285
Creating a Route Policy and Attaching It to an EIGRP Process
287
Configuring Stub Routing for an EIGRP Process
288
Configuring EIGRP as a PE-CE Protocol
289
Redistributing BGP Routes into EIGRP
291
Monitoring EIGRP Routing
293
Configuring an EIGRP Authentication Keychain
295
Configuring an Authentication Keychain for an Ipv4/Ipv6 Interface on a Nondefault VRF
296
Vrf
297
Configuration Examples for Implementing EIGRP
297
Configuring a Basic EIGRP Configuration: Example
297
Configuring an EIGRP Stub Operation: Example
298
Configuring an EIGRP PE-CE Configuration with Prefix-Limits: Example
298
Configuring an EIGRP Authentication Keychain: Example
299
Additional References
299
Chapter 5 Implementing IS-IS
301
Prerequisites for Implementing IS-IS
301
Restrictions for Implementing IS-IS
301
Information about Implementing IS-IS
302
IS-IS Functional Overview
302
Key Features Supported in the Cisco IOS XR IS-IS Implementation
302
IS-IS Configuration Grouping
303
IS-IS Configuration Modes
303
Router Configuration Mode
303
Router Address Family Configuration Mode
303
Interface Configuration Mode
303
Interface Address Family Configuration Mode
304
IS-IS Interfaces
304
Multitopology Configuration
304
Ipv6 Routing and Configuring Ipv6 Addressing
304
Limit LSP Flooding
305
Flood Blocking on Specific Interfaces
305
Mesh Group Configuration
305
Maximum LSP Lifetime and Refresh Interval
305
Single-Topology Ipv6 Support
306
Multitopology Ipv6 for IS-IS
306
IS-IS Authentication
306
Nonstop Forwarding
307
Multi-Instance IS-IS
308
Multiprotocol Label Switching Traffic Engineering
308
Overload Bit on Router
308
Overload Bit Configuration During Multitopology Operation
309
IS-IS Overload Bit Avoidance
309
Default Routes
309
Attached Bit on an IS-IS Instance
309
IS-IS Support for Route Tags
310
Multicast-Intact Feature
310
Multicast Topology Support Using IS-IS
310
MPLS Label Distribution Protocol IGP Synchronization
311
MPLS LDP-IGP Synchronization Compatibility with LDP Graceful Restart
311
MPLS LDP-IGP Synchronization Compatibility with IGP Nonstop Forwarding
311
Label Distribution Protocol IGP Auto-Configuration
312
MPLS te Forwarding Adjacency
312
MPLS te Interarea Tunnels
312
IP Fast Reroute
312
Unequal Cost Multipath Load-Balancing for IS-IS
313
Enabling IS-IS and Configuring Level 1 or Level 2 Routing
313
Configuring Single Topology for IS-IS
315
Configuring Multitopology Routing
319
Restrictions for Configuring Multitopology Routing
319
Information about Multitopology Routing
319
Configuring a Global Topology and Associating It with an Interface
320
Enabling an IS-IS Topology
321
Placing an Interface in a Topology in IS-IS
322
Configuring a Routing Policy
323
Configuring Multitopology for IS-IS
324
Controlling LSP Flooding for IS-IS
324
Configuring Nonstop Forwarding for IS-IS
328
Configuring Authentication for IS-IS
330
Configuring Keychains for IS-IS
331
Configuring MPLS Traffic Engineering for IS-IS
332
Tuning Adjacencies for IS-IS
334
Setting SPF Interval for a Single-Topology Ipv4 and Ipv6 Configuration
337
Customizing Routes for IS-IS
339
Configuring MPLS LDP IS-IS Synchronization
341
Enabling Multicast-Intact
342
Tagging IS-IS Interface Routes
343
Setting the Priority for Adding Prefixes to the RIB
345
Configuring IP/LDP Fast Reroute
346
Configuring IS-IS Overload Bit Avoidance
348
ISIS Link Group
349
Configure Link Group Profile
350
Configure Link Group Interface
352
Configuration Examples for Implementing IS-IS
353
Configuring Single-Topology IS-IS for Ipv6: Example
353
Configuring Multitopology IS-IS for Ipv6: Example
354
Redistributing IS-IS Routes between Multiple Instances: Example
354
Tagging Routes: Example
355
Configuring IS-IS Overload Bit Avoidance: Example
355
Where to Go Next
355
Additional References
356
Chapter 6 Implementing OSPF
359
Prerequisites for Implementing OSPF
360
Information about Implementing OSPF
361
OSPF Functional Overview
361
Key Features Supported in the Cisco IOS XR Software OSPF Implementation
362
Comparison of Cisco IOS XR Software Ospfv3 and Ospfv2
363
OSPF Hierarchical CLI and CLI Inheritance
363
OSPF Routing Components
364
Autonomous Systems
364
Areas
364
Backbone Area
365
Stub Area
365
Not-So-Stubby Area
365
Routers
365
Area Border Routers
365
Autonomous System Boundary Routers (ASBR)
366
Interior Routers
366
OSPF Process and Router ID
366
Supported OSPF Network Types
367
Route Authentication Methods for OSPF
367
Plain Text Authentication
367
MD5 Authentication
367
Authentication Strategies
368
Key Rollover
368
Neighbors and Adjacency for OSPF
368
Designated Router (DR) for OSPF
368
Default Route for OSPF
369
Link-State Advertisement Types for OSPF Version 2
369
Link-State Advertisement Types for Ospfv3
370
Virtual Link and Transit Area for OSPF
371
Passive Interface
371
Ospfv2 Sham Link Support for MPLS VPN
372
Ospfv3 Sham Link Support for MPLS VPN
373
Graceful Restart Procedure over the Sham-Link
374
ECMP and Ospfv3 Sham-Link
374
OSPF SPF Prefix Prioritization
374
Route Redistribution for OSPF
375
OSPF Shortest Path First Throttling
375
Nonstop Forwarding for OSPF Version 2
376
Graceful Shutdown for Ospfv3
377
Modes of Graceful Restart Operation
377
Restart Mode
377
Helper Mode
378
Protocol Shutdown Mode
378
Protocol Restoration
379
Graceful Restart Requirements and Restrictions
379
Warm Standby and Nonstop Routing for OSPF Version 2
380
Warm Standby for OSPF Version 3
381
Multicast-Intact Support for OSPF
381
Load Balancing in OSPF Version 2 and Ospfv3
381
Multi-Area Adjacency for OSPF Version 2
382
Label Distribution Protocol IGP Auto-Configuration for OSPF
382
OSPF Authentication Message Digest Management
383
GTSM TTL Security Mechanism for OSPF
383
Path Computation Element for Ospfv2
383
OSPF IP Fast Reroute Loop Free Alternate
384
Management Information Base (MIB) for Ospfv3
384
VRF-Lite Support for Ospfv2
385
Update
385
Unequal Cost Multipath Load-Balancing for OSPF
385
How to Implement OSPF
386
Enabling OSPF
386
Configuring Stub and Not-So-Stubby Area Types
388
Configuring Neighbors for Nonbroadcast Networks
390
Configuring Authentication at Different Hierarchical Levels for OSPF Version
394
Controlling the Frequency that the same LSA Is Originated or Accepted for OSPF
397
Creating a Virtual Link with MD5 Authentication to Area 0 for OSPF
399
Examples
402
Summarizing Subnetwork Lsas on an OSPF ABR
403
Redistribute Routes into OSPF
405
Configuring OSPF Shortest Path First Throttling
407
Examples
409
Configuring OSPF Version 2 for MPLS Traffic Engineering
411
Examples
413
Configuring Ospfv3 Graceful Restart
415
Displaying Information about Graceful Restart
416
Configuring an Ospfv2 Sham Link
417
Enabling Nonstop Routing for Ospfv2
420
Enabling Nonstop Routing for Ospfv3
421
Configuring OSPF SPF Prefix Prioritization
421
Enabling Multicast-Intact for Ospfv2
423
Associating Interfaces to a VRF
423
Configuring OSPF as a Provider Edge to Customer Edge (PE-CE) Protocol
425
Creating Multiple OSPF Instances (OSPF Process and a VRF)
427
Configuring Multi-Area Adjacency
428
Configuring Label Distribution Protocol IGP Auto-Configuration for OSPF
430
Configuring LDP IGP Synchronization: OSPF
431
Configuring Authentication Message Digest Management for OSPF
432
Examples
433
Configuring Generalized TTL Security Mechanism (GTSM) for OSPF
434
Examples
436
Verifying OSPF Configuration and Operation
436
Configuring IP Fast Reroute Loop-Free Alternate
439
Enabling IPFRR LFA
439
Excluding an Interface from IP Fast Reroute Per-Link Computation
440
Enabling OSPF Interaction with SRMS Server
440
Configuration Examples for Implementing OSPF
442
Cisco IOS XR Software for OSPF Version 2 Configuration: Example
442
CLI Inheritance and Precedence for OSPF Version 2: Example
443
MPLS te for OSPF Version 2: Example
444
ABR with Summarization for Ospfv3: Example
444
ABR Stub Area for Ospfv3: Example
445
ABR Totally Stub Area for Ospfv3: Example
445
Configuring OSPF SPF Prefix Prioritization: Example
445
Route Redistribution for Ospfv3: Example
446
Virtual Link Configured through Area 1 for Ospfv3: Example
446
Virtual Link Configured with MD5 Authentication for OSPF Version 2: Example
447
VPN Backbone and Sham Link Configured for OSPF Version 2: Example
448
Where to Go Next
449
Additional References
449
Implementing and Monitoring RIB
454
Prerequisites for Implementing RIB
454
Information about RIB Configuration
454
Overview of RIB
454
RIB Data Structures in BGP and Other Protocols
454
RIB Administrative Distance
455
RIB Statistics
456
Ipv6 Provider Edge Ipv6 and Ipv6 VPN Provider Edge Transport over MPLS
456
RIB Quarantining
456
Route and Label Consistency Checker
457
How to Deploy and Monitor RIB
458
Verifying RIB Configuration Using the Routing Table
458
Verifying Networking and Routing Problems
459
Disabling RIB Next-Hop Dampening
460
Configuring RCC and LCC
461
Enabling RCC and LCC On-Demand Scan
461
Enabling RCC and LCC Background Scan
462
BGP-RIB Feedback Mechanism for Update Generation
464
Configuration Examples for RIB Monitoring
464
Output of Show Route Command: Example
464
Output of Show Route Backup Command: Example
465
Output of Show Route Best-Local Command: Example
465
Output of Show Route Connected Command: Example
465
Output of Show Route Local Command: Example
466
Output of Show Route Longer-Prefixes Command: Example
466
Output of Show Route Next-Hop Command: Example
466
Enabling RCC and LCC: Example
467
Where to Go Next
467
Additional References
468
Implementing RIP
471
Prerequisites for Implementing RIP
472
Information about Implementing RIP
472
RIP Functional Overview
472
Split Horizon for RIP
473
Route Timers for RIP
473
Route Redistribution for RIP
474
Default Administrative Distances for RIP
474
Routing Policy Options for RIP
475
Authentication Using Keychain in RIP
475
In-Bound RIP Traffic on an Interface
476
Out-Bound RIP Traffic on an Interface
477
How to Implement RIP
477
Enabling RIP
477
Customizing RIP
479
Control Routing Information
481
Creating a Route Policy for RIP
483
Configuring RIP Authentication Keychain
484
Configuring RIP Authentication Keychain for Ipv4 Interface on a Non-Default
484
Vrf
484
Configuring RIP Authentication Keychain for Ipv4 Interface on Default VRF
486
Configuration Examples for Implementing RIP
487
Configuring a Basic RIP Configuration: Example
487
Configuring RIP on the Provider Edge: Example
487
Adjusting RIP Timers for each VRF Instance: Example
488
Configuring Redistribution for RIP: Example
488
Configuring Route Policies for RIP: Example
489
Configuring Passive Interfaces and Explicit Neighbors for RIP: Example
489
Controlling RIP Routes: Example
490
Configuring RIP Authentication Keychain: Example
490
Additional References
490
Chapter 9 Implementing Routing Policy
493
Prerequisites for Implementing Routing Policy
494
Restrictions for Implementing Routing Policy
494
Information about Implementing Routing Policy
495
Routing Policy Language
495
Routing Policy Language Overview
495
Routing Policy Language Structure
496
Names
496
Sets
496
As-Path-Set
497
Community-Set
498
Extcommunity-Set
499
Prefix-Set
502
ACL Support in RPL Prefix Sets
504
Rd-Set
504
Routing Policy Language Components
504
Routing Policy Language Usage
505
RPL Variables
507
Routing Policy Configuration Basics
507
Policy Definitions
507
Parameterization
508
Parameterization at Attach Points
509
Global Parameterization
509
Semantics of Policy Application
510
Boolean Operator Precedence
510
Multiple Modifications of the same Attribute
510
When Attributes Are Modified
511
Default Drop Disposition
511
Control Flow
512
Policy Verification
513
Range Checking
513
Incomplete Policy and Set References
513
Attached Policy Modification
513
Verification of Attribute Comparisons and Actions
514
Policy Statements
514
Remark
514
Disposition
514
Action
516
Boolean Conditions
517
Apply
519
Attach Points
519
BGP Policy Attach Points
520
Additional-Path
520
Dampening
520
Default Originate
520
Neighbor Export
521
Neighbor Import
521
Network
522
Redistribute
522
Show BGP
523
Import
524
Table Policy
524
Export
525
Allocate-Label
525
Retain Route-Target
526
Label-Mode
526
Neighbor-ORF
527
Next-Hop
527
Clear-Policy
528
Debug
528
BGP Attributes and Operators
529
Default-Information Originate
543
RPL - if Prefix Is-Best-Path/Is-Best-Multipath
544
OSPF Policy Attach Points
545
Default-Information Originate
545
Redistribute
545
Area-In
546
Area-Out
546
SPF Prefix-Priority
547
OSPF Attributes and Operators
547
Distribute-List in
548
Ospfv3 Policy Attach Points
548
Default-Information Originate
549
Redistribute
549
Ospfv3 Attributes and Operators
549
IS-IS Policy Attach Points
550
Redistribute
550
Default-Information Originate
551
Inter-Area-Propagate
551
IS-IS Attributes and Operators
551
EIGRP Policy Attach Points
552
Default-Accept-In
552
Default-Accept-Out
553
Policy-In
553
Policy-Out
553
If-Policy-In
554
If-Policy-Out
554
Redistribute
554
EIGRP Attributes and Operators
555
RIP Policy Attach Points
556
Default-Information Originate
556
Redistribute
556
Global-Inbound
557
Global-Outbound
557
Interface-Inbound
557
Interface-Outbound
557
RIP Attributes and Operators
557
PIM Policy Attach Points
559
Attached Policy Modification
559
Nonattached Policy Modification
559
Editing Routing Policy Configuration Elements
559
Editing Routing Policy Configuration Elements Using the Nano Editor
560
Editing Routing Policy Configuration Elements Using the Emacs Editor
560
Editing Routing Policy Configuration Elements Using the VIM Editor
561
Editing Routing Policy Configuration Elements Using CLI
561
Editing Routing Policy Language Set Elements Using XML
561
Hierarchical Policy Conditions
562
Apply Condition Policies
562
Behavior of Pass/Drop/Done RPL Statements for Simple Hierarchical Policies
563
Behavior of Pass/Drop/Done RPL Statements for Hierarchical Policy Conditions
563
Nested Wildcard Apply Policy
564
Wildcards for Route Policy Sets
565
Use Wildcards for Routing Policy Sets
565
VRF Import Policy Enhancement
569
Flexible L3VPN Label Allocation Mode
569
How to Implement Routing Policy
569
Defining a Route Policy
569
Attaching a Routing Policy to a BGP Neighbor
570
Modifying a Routing Policy Using a Text Editor
571
Configuration Examples for Implementing Routing Policy
573
Routing Policy Definition: Example
573
Simple Inbound Policy: Example
573
Modular Inbound Policy: Example
574
Use Wildcards for Routing Policy Sets
575
VRF Import Policy Configuration: Example
579
Additional References
579
Chapter 1 0 Implementing Static Routes
581
Prerequisites for Implementing Static Routes
582
Restrictions for Implementing Static Routes
582
Information about Implementing Static Routes
582
Static Route Functional Overview
582
Default Administrative Distance
582
Directly Connected Routes
583
Recursive Static Routes
583
Fully Specified Static Routes
584
Floating Static Routes
584
Default VRF
584
Ipv4 and Ipv6 Static VRF Routes
584
How to Implement Static Routes
585
Configure Static Route
585
Configure Floating Static Route
586
Configure Static Routes between PE-CE Routers
587
Change Maximum Number of Allowable Static Routes
589
Associate VRF with a Static Route
590
Enabling Object Tracking for Static Routes
591
Configuration Examples
592
Configuring Traffic Discard: Example
592
Configuring a Fixed Default Route: Example
593
Configuring a Floating Static Route: Example
593
Configuring a Static Route between PE-CE Routers: Example
593
Additional References
593
Chapter 1 1 Implementing RCMD
595
Route Convergence Monitoring and Diagnostics
595
Configuring Route Convergence Monitoring and Diagnostics
596
Route Convergence Monitoring and Diagnostics Prefix Monitoring
599
Route Convergence Monitoring and Diagnostics OSPF Type 3/5/7 Link-State Advertisements
599
Enabling RCMD Monitoring for IS-IS Prefixes
599
Enable RCMD Monitoring for OSPF Prefixes
600
Enabling RCMD Monitoring for Type 3/5/7 OSPF Lsas
601
Enabling RCMD Monitoring for IS-IS Prefixes: Example
602
Enabling RCMD Monitoring for OSPF Prefixes: Example
602
Enabling RCMD Monitoring for Type 3/5/7 OSPF Lsas: Example
603
Other manuals for Cisco A9K-SIP-700
User Configuration Guide
422 pages
Service Configuration Guide
204 pages
Quick Reference Guide
7 pages
Configuring
46 pages
Software Manual
166 pages
System Configuration Guide
168 pages
Manual
64 pages
Configuration Manual
50 pages
Command Reference Guide
1138 pages
Command Reference
590 pages
Installation Guide
284 pages
Configuration Guidelines
694 pages
Reference Guide
696 pages
Routing Configuration Guide
702 pages
Hardware Installation Guide
118 pages
Configuring Network Settings
26 pages
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Cisco A9K-SIP-700 Specifications
General
Brand
Cisco
Model
A9K-SIP-700
Category
Network Router
Language
English
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