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Cisco A9K-SIP-700 Routing Configuration Guide
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Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
xxviii
Contents
27
29
Table of Contents
Default Chapter
4
Table of Contents
4
Obtaining Documentation and Submitting a Service Request
29
Configuring Nonstop Forwarding Specific to Cisco for OSPF Version
32
Bgp Configuration
43
Neighbor Address Family Configuration Mode
44
Neighbor Configuration Mode
44
VRF Configuration Mode
44
VRF Address Family Configuration Mode
45
Family
45
Route-Policy
47
VRF Neighbor Configuration Mode
48
VRF Neighbor Address Family Configuration Mode
48
Vpnv4 Address Family Configuration Mode
48
L2VPN Address Family Configuration Mode
49
Neighbor Submode
49
Configuration Templates
50
Template Inheritance Rules
51
Viewing Inherited Configurations
54
Show Bgp Neighbors
55
Show Bgp Af-Group
56
Show Bgp Session-Group
57
Show Bgp Neighbor-Group
58
Neighbor Address Family Combinations
59
No Default Address Family
59
Routing Policy Enforcement
60
Table Policy
61
BGP Cost Community
62
How BGP Cost Community Influences the Best Path Selection Process
63
Cost Community Support for Aggregate Routes and Multipaths
64
Influencing Route Preference in a Multiexit IGP Network
65
BGP Cost Community Support for EIGRP MPLS VPN PE-CE with Back-Door Links
66
Adding Routes to the Routing Information Base
67
Update Groups
62
BGP Update Generation and Update Groups
62
BGP Update Group
62
BGP DMZ Aggregate Bandwidth
67
Configuring BGP DMZ Aggregate Bandwidth: Example
68
Configuring Policy-Based Link Bandwidth: Example
69
BGP Best Path Algorithm
69
Comparing Pairs of Paths
70
Order of Comparisons
72
Best Path Change Suppression
72
Administrative Distance
73
Multiprotocol BGP
74
Route Dampening
76
Minimizing Flapping
77
BGP Route Reflectors
77
BGP Routing Domain Confederation
77
RPL - if Prefix Is-Best-Path/Is-Best-Multipath
81
Default Address Family for Show Commands
82
TCP Maximum Segment Size
82
Per Neighbor TCP MSS
82
MPLS VPN Carrier Supporting Carrier
83
BGP Keychains
84
BGP Nonstop Routing
84
BGP Local Label Retention
85
Command Line Interface (CLI) Consistency for BGP Commands
85
BGP Additional Paths
86
Ibgp Multipath Load Sharing
86
BGP Selective Multipath
87
Accumulated Interior Gateway Protocol Attribute
88
Ipv4 BGP-Policy Accounting on Cisco ASR 9000'S A9K-SIP-700
89
Ipv6 Unicast Routing on Cisco ASR 9000'S A9K-SIP-700
89
Per VRF and Per CE Label for Ipv6 Provider Edge
89
Ipv6 Urpf Support on Cisco ASR 9000'S A9K-SIP-700
90
Remove and Replace Private as Numbers from as Path in BGP
90
Selective VRF Download
91
Line Card Roles and Filters in Selective VRF Download
91
Selective VRF Download Disable
92
Calculating Routes Downloaded to Line Card with or Without SVD
92
BGP Accept Own
93
BGP DMZ Link Bandwidth for Unequal Cost Recursive Load Balancing
95
BFD Multihop Support for BGP
95
BGP Multi-Instance and Multi-AS
95
BGP Prefix Origin Validation Based on RPKI
96
Configuring RPKI Cache-Server
96
Configuring RPKI Prefix Validation
99
Configuring RPKI Bestpath Computation
100
BGP 3107 PIC Updates for Global Prefixes
101
BGP Prefix Independent Convergence for RIB and FIB
102
BGP Update Message Error Handling
102
BGP Attribute Filtering
103
BGP Attribute Filter Actions
103
BGP Error Handling and Attribute Filtering Syslog Messages
103
BGP Link-State
104
BGP Permanent Network
104
BGP-RIB Feedback Mechanism for Update Generation
105
BGP VRF Dynamic Route Leaking
105
User Defined Martian Check
106
Resilient Per-CE Label Allocation Mode
107
BGP Multipath Enhancements
107
MVPN with BGP SAFI-2 and SAFI-129
107
BGP Monitoring Protocol
108
How to Implement BGP
109
Enabling BGP Routing
109
Configuring Multiple BGP Instances for a Specific Autonomous System
111
Configuring a Routing Domain Confederation for BGP
112
Resetting an Ebgp Session Immediately Upon Link Failure
113
Logging Neighbor Changes
114
Adjusting BGP Timers
114
Changing the BGP Default Local Preference Value
115
Configuring the MED Metric for BGP
116
Configuring BGP Weights
116
Tuning the BGP Best-Path Calculation
118
Indicating BGP Back-Door Routes
119
Configuring Aggregate Addresses
120
Redistributing Ibgp Routes into IGP
121
Configuring Discard Extra Paths
122
Configuring Per Neighbor TCP MSS
123
Disabling Per Neighbor TCP MSS
125
Redistributing Prefixes into Multiprotocol BGP
128
Configuring BGP Route Dampening
130
Applying Policy When Updating the Routing Table
135
Configuring a BGP Neighbor Group and Neighbors
136
Setting BGP Administrative Distance
136
Configuring a Route Reflector for BGP
139
Configuring BGP Route Filtering by Route Policy
140
Configuring BGP Attribute Filtering
142
Configuring BGP Next-Hop Trigger Delay
143
Disabling Next-Hop Processing on BGP Updates
144
Configuring BGP Community and Extended-Community Advertisements
145
Configuring the BGP Cost Community
147
Configuring Software to Store Updates from a Neighbor
150
BGP Persistence
152
BGP Persistence Configuration: Example
153
BGP Graceful Maintenance
153
Restrictions for BGP Graceful Maintenance
153
Graceful Maintenance Operation
154
Inter Autonomous System
154
No Automatic Shutdown
155
When to Shut down after Graceful Maintenance
155
Activate Graceful Maintenance under BGP Router (All Neighbors)
155
Activate Graceful Maintenance on a Single Neighbor
157
Activate Graceful Maintenance on a Group of Neighbors
157
Direct Router to Reduce Route Preference
159
Bring Router or Link Back into Service
160
Show Command Outputs to Verify BGP Graceful Maintenance
160
L3VPN Ibgp PE-CE
161
L3VPN Ibgp PE-CE Overview
161
Restrictions for L3VPN Ibgp PE-CE
162
Configuring L3VPN Ibgp PE-CE
163
Flow-Tag Propagation
165
Restrictions for Flow-Tag Propagation
165
Source and Destination-Based Flow Tag
165
Configure Source and Destination-Based Flow Tag
165
Configuring a VPN Routing and Forwarding Instance in BGP
167
Defining Virtual Routing and Forwarding Tables in Provider Edge Routers
167
Configuring the Route Distinguisher
169
Configuring PE-PE or PE-RR Interior BGP Sessions
170
Communities
173
Configuring BGP as a PE-CE Protocol
174
Redistribution of Igps to BGP
178
Configuring Keychains for BGP
180
Disabling a BGP Neighbor
181
Resetting Neighbors Using BGP Inbound Soft Reset
182
Resetting Neighbors Using BGP Outbound Soft Reset
183
Resetting Neighbors Using BGP Hard Reset
184
Clearing Caches, Tables, and Databases
185
Displaying System and Network Statistics
186
Displaying BGP Process Information
187
Monitoring BGP Update Groups
189
Configuring BGP Nonstop Routing
190
Disable BGP Nonstop Routing
190
Installing Primary Backup Path for Prefix Independent Convergence (PIC)
191
Re-Enable BGP Nonstop Routing
191
Configuring BGP Additional Paths
193
Retaining Allocated Local Label for Primary Path
193
Configuring Ibgp Multipath Load Sharing
195
Originating Prefixes with Aigp
196
Configuring BGP Accept Own
198
Configuring BGP Link-State
199
Configuring Domain Distinguisher
200
Configuring BGP Permanent Network
201
How to Advertise Permanent Network
203
Enabling BGP Unequal Cost Recursive Load Balancing
204
Configuring VRF Dynamic Route Leaking
206
Enabling Selective VRF Download
207
Disabling Selective VRF Download
209
Configuring Resilient Per-CE Label Allocation Mode
211
Configuring Resilient Per-CE Label Allocation Mode under VRF Address Family
211
Configuring Resilient Per-CE Label Allocation Mode Using a Route-Policy
213
Configuration Examples for Implementing BGP
214
Enabling BGP: Example
214
Displaying BGP Update Groups: Example
216
BGP Neighbor Configuration: Example
216
BGP Confederation: Example
217
BGP Route Reflector: Example
218
BGP Nonstop Routing Configuration: Example
219
Primary Backup Path Installation: Example
219
Allocated Local Label Retention: Example
219
Ibgp Multipath Loadsharing Configuration: Example
219
Discard Extra Paths Configuration: Example
220
Displaying Discard Extra Paths Information: Example
220
Configure Per Neighbor TCP MSS: Examples
221
Verify Per Neighbor TCP MSS: Examples
222
Originating Prefixes with Aigp: Example
224
BGP Accept Own Configuration: Example
225
BGP Unequal Cost Recursive Load Balancing: Example
225
VRF Dynamic Route Leaking Configuration: Example
227
Resilient Per-CE Label Allocation Mode Configuration: Example
228
Example
228
Configuring Resilient Per-CE Label Allocation Mode Using a Route-Policy: Example
228
Additional References
228
Where to Go Next
228
Chapter 3 Implementing BGP Flowspec
233
BGP Flow Specification
233
Limitations
234
BGP Flowspec Conceptual Architecture
234
Information about Implementing BGP Flowspec
235
Flow Specifications
236
Supported Matching Criteria and Actions
236
Traffic Filtering Actions
239
BGP Flowspec Client-Server (Controller) Model and Configuration
241
How to Configure BGP Flowspec
242
Enable Flowspec on BGP Side
243
Define Class
244
Define Policy Map
245
Link Flowspec to PBR Policies
247
Verify BGP Flowspec
249
Preserving Redirect Nexthop
251
Validate BGP Flowspec
252
Disabling BGP Flowspec
253
Disable Flowspec Redirect and Validation
253
Configuration Examples for Implementing BGP Flowspec
255
Flowspec Rule Configuration
255
Drop Packet Length
256
Remark DSCP
256
Additional References for BGP Flowspec
257
Chapter 4 Implementing BFD
259
Prerequisites for Implementing BFD
261
Restrictions for Implementing BFD
262
Information about BFD
263
Differences in BFD in Cisco IOS XR Software and Cisco IOS Software
263
BFD Multipath Sessions Support on Nv Edge System
264
BFD Modes of Operation
264
BFD Packet Information
265
BFD Source and Destination Ports
265
BFD Packet Intervals and Failure Detection
265
BFD Packet Intervals on Physical Interfaces
265
BFD Packet Intervals on Bundle Member Links
266
Control Packet Failure Detection in Asynchronous Mode
266
Echo Packet Failure Detection in Asynchronous Mode
266
Echo Failure Detection Examples
267
Interfaces
268
Echo Packet Latency
269
Priority Settings for BFD Packets
269
BFD for Ipv4
270
Enabling BFD on a Static Route
271
BFD for Ipv6
273
BFD on Bundled Vlans
273
BFD over Member Links on Link Bundles
274
Overview of BFD State Change Behavior on Member Links and Bundle Status
274
BFD Multipath Sessions
276
BFD for Multihop Paths
276
Setting up BFD Multihop
277
BFD over MPLS Traffic Engineering Lsps
277
Echo Timer Configuration for BFD on Bundle Interfaces
277
Bidirectional Forwarding Detection over Logical Bundle
279
Bidirectional Forwarding Detection over Generic Routing Encapsulation
279
Bidirectional Forwarding Detection Ipv6 Multihop
279
BFD over Pseudowire Headend
280
BFD over Satellite Interfaces
280
BFD over IRB
281
BFD over Bundle Per-Member Link
281
BFD over Bundles CISCO/IETF Mode Support on a Per Bundle Basis
282
BFD Dampening
282
BFD Hardware Offload
283
BFD Object Tracking
284
How to Configure BFD
284
BFD Configuration Guidelines
284
Configuring BFD under a Dynamic Routing Protocol or Using a Static Route
285
Enabling BFD on a BGP Neighbor
285
Enabling BFD for OSPF on an Interface
286
Enabling BFD for Ospfv3 on an Interface
288
Enabling BFD on a Static Route
290
Configuring BFD on Bundle Member Links
291
Prerequisites for Configuring BFD on Bundle Menmber Links
291
Specifying the BFD Destination Address on a Bundle
292
Enabling BFD Sessions on Bundle Members
292
Configuring the Minimum Thresholds for Maintaining an Active Bundle
293
Configuring BFD Packet Transmission Intervals and Failure Detection Times on a Bundle
294
Bundle
296
Configuring BFD over Bundle Per Member Mode
297
Configure BFD over Bundles CISCO/IETF Mode Support on a Per Bundle Basis
298
Enabling Echo Mode to Test the Forwarding Path to a BFD Peer
300
Overriding the Default Echo Packet Source Address
301
Specifying the Echo Packet Source Address Globally for BFD
301
Specifying the Echo Packet Source Address on an Individual Interface or Bundle
302
Configuring BFD Session Teardown Based on Echo Latency Detection
302
Delaying BFD Session Startup until Verification of Echo Path and Latency
303
Disabling Echo Mode
304
Disabling Echo Mode on a Router
305
Disabling Echo Mode on an Individual Interface or Bundle
305
Minimizing BFD Session Flapping Using BFD Dampening
306
Enabling and Disabling Ipv6 Checksum Support
307
Enabling and Disabling Ipv6 Checksum Calculations for BFD on a Router
307
Or Bundle
308
Clearing and Displaying BFD Counters
309
Configuring Coexistence between BFD over Bundle (Bob) and BFD over Logical Bundle BLB)
310
Blb
311
Configuring BFD Ipv6 Multihop
311
Configuring BFD Ipv6 Multihop for Ebgp Neighbors
311
Configuring BFD Ipv6 Multihop for Ibgp Neighbors
312
Configuring BFD over MPLS Traffic Engineering Lsps
313
Enabling BFD Parameters for BFD over te Tunnels
313
Configuring BFD Bring up Timeout
314
Configuring BFD Dampening for te Tunnels
315
Configuring Periodic LSP Ping Requests
316
Configuring BFD at the Tail End
317
Configuring BFD over LSP Sessions on Line Cards
318
Configuring BFD Object Tracking
319
Configuration Examples for Configuring BFD
320
BFD over BGP: Example
320
BFD over OSPF: Examples
321
BFD over Static Routes: Examples
321
BFD on Bundled Vlans: Example
322
BFD on Bundle Member Links: Examples
322
Echo Packet Source Address: Examples
323
Echo Latency Detection: Examples
324
Echo Startup Validation: Examples
324
BFD Echo Mode Disable: Examples
325
BFD Dampening: Examples
325
BFD Ipv6 Checksum: Examples
325
BFD Peers on Routers Running Cisco IOS and Cisco IOS XR Software: Example
326
Configuring BFD Ipv6 Multihop: Examples
326
BFD over MPLS te Lsps: Examples
327
BFD over MPLS te Tunnel Head-End Configuration: Example
327
BFD over MPLS te Tunnel Tail-End Configuration: Example
327
Where to Go Next
327
Additional References
328
Related Documents
328
Standards
328
Rfcs
328
Mibs
329
Technical Assistance
329
Implementing EIGRP
331
Prerequisites for Implementing EIGRP
332
Restrictions for Implementing EIGRP
332
Information about Implementing EIGRP
332
EIGRP Functional Overview
332
EIGRP Features
333
EIGRP Components
333
EIGRP Configuration Grouping
334
EIGRP Configuration Modes
334
EIGRP Interfaces
335
Redistribution for an EIGRP Process
336
Metric Weights for EIGRP Routing
336
Mismatched K Values
336
Goodbye Message
337
Percentage of Link Bandwidth Used for EIGRP Packets
337
Floating Summary Routes for an EIGRP Process
337
Split Horizon for an EIGRP Process
339
Adjustment of Hello Interval and Hold Time for an EIGRP Process
340
Stub Routing for an EIGRP Process
340
Route Policy Options for an EIGRP Process
341
EIGRP Layer 3 VPN PE-CE Site-Of-Origin
342
Router Interoperation with the Site-Of-Origin Extended Community
342
Route Manipulation Using Soo Match Condition
343
EIGRP V4/V6 Authentication Using Keychain
344
EIGRP Wide Metric Computation
344
EIGRP Multi-Instance
345
EIGRP Support for BFD
345
How to Implement EIGRP
345
Enabling EIGRP Routing
345
Configuring Route Summarization for an EIGRP Process
347
Redistributing Routes for EIGRP
349
Creating a Route Policy and Attaching It to an EIGRP Process
351
Configuring Stub Routing for an EIGRP Process
352
Configuring EIGRP as a PE-CE Protocol
353
Redistributing BGP Routes into EIGRP
355
Monitoring EIGRP Routing
357
Configuring an EIGRP Authentication Keychain
359
Vrf
360
Configuring Unicast Neighbors
361
Remote Neighbor Session Policy
362
Understanding Neighbor Terms
363
Remote Unicast-Listen (Point-To-Point) Neighbors
364
Restrictions for Remote Neighbors
364
Inheritance and Precedence of the Remote Neighbor Configurations
365
How to Configure Remote Unicast Neighbors
365
Configuration Examples for Implementing EIGRP
366
Configuring a Basic EIGRP Configuration: Example
367
Configuring an EIGRP Stub Operation: Example
367
Configuring an EIGRP PE-CE Configuration with Prefix-Limits: Example
367
Configuring an EIGRP Authentication Keychain: Example
368
Additional References
368
Implementing IS-IS
371
Prerequisites for Implementing IS-IS
371
Restrictions for Implementing IS-IS
371
Information about Implementing IS-IS
372
IS-IS Functional Overview
372
Key Features Supported in the Cisco IOS XR IS-IS Implementation
372
IS-IS Configuration Grouping
373
IS-IS Configuration Modes
373
Router Configuration Mode
373
Router Address Family Configuration Mode
373
Interface Configuration Mode
373
Interface Address Family Configuration Mode
374
IS-IS Interfaces
374
Multitopology Configuration
374
Ipv6 Routing and Configuring Ipv6 Addressing
374
Limit LSP Flooding
375
Flood Blocking on Specific Interfaces
375
Mesh Group Configuration
375
Maximum LSP Lifetime and Refresh Interval
375
Single-Topology Ipv6 Support
376
Multitopology Ipv6 for IS-IS
376
IS-IS Authentication
376
Nonstop Forwarding
377
Isis Nsr
378
Multi-Instance IS-IS
378
Multiprotocol Label Switching Traffic Engineering
378
Overload Bit on Router
378
Overload Bit Configuration During Multitopology Operation
379
IS-IS Overload Bit Avoidance
379
Default Routes
379
Attached Bit on an IS-IS Instance
380
IS-IS Support for Route Tags
380
Multicast-Intact Feature
380
Multicast Topology Support Using IS-IS
381
MPLS Label Distribution Protocol IGP Synchronization
381
MPLS LDP-IGP Synchronization Compatibility with LDP Graceful Restart
381
MPLS LDP-IGP Synchronization Compatibility with IGP Nonstop Forwarding
382
Label Distribution Protocol IGP Auto-Configuration
382
MPLS te Forwarding Adjacency
382
MPLS te Interarea Tunnels
382
IP Fast Reroute
383
Unequal Cost Multipath Load-Balancing for IS-IS
383
Enabling IS-IS and Configuring Level 1 or Level 2 Routing
384
Configuring Single Topology for IS-IS
385
Configuring Multitopology Routing
389
Restrictions for Configuring Multitopology Routing
389
Information about Multitopology Routing
390
Configuring a Global Topology and Associating It with an Interface
390
Enabling an IS-IS Topology
391
Placing an Interface in a Topology in IS-IS
392
Configuring a Routing Policy
393
Configuring Multitopology for IS-IS
394
Controlling LSP Flooding for IS-IS
394
Configuring Nonstop Forwarding for IS-IS
398
Configuring ISIS-NSR
400
Configuring Authentication for IS-IS
401
Configuring Keychains for IS-IS
403
Configuring MPLS Traffic Engineering for IS-IS
404
Tuning Adjacencies for IS-IS
406
Setting SPF Interval for a Single-Topology Ipv4 and Ipv6 Configuration
409
Customizing Routes for IS-IS
411
Configuring MPLS LDP IS-IS Synchronization
413
Enabling Multicast-Intact
414
Tagging IS-IS Interface Routes
415
Setting the Priority for Adding Prefixes to the RIB
417
Configuring IP Fast Reroute Loop-Free Alternate
418
Configuring IS-IS Overload Bit Avoidance
419
ISIS Link Group
420
Configure Link Group Profile
421
Configure Link Group Interface
423
Configuration Examples for Implementing IS-IS
424
Configuring Single-Topology IS-IS for Ipv6: Example
424
Configuring Multitopology IS-IS for Ipv6: Example
425
Redistributing IS-IS Routes between Multiple Instances: Example
425
Tagging Routes: Example
426
Configuring IS-IS Overload Bit Avoidance: Example
426
Example: Configuring IS-IS to Handle Router Overload
426
Where to Go Next
432
Additional References
432
Chapter 7 Implementing OSPF
435
Prerequisites for Implementing OSPF
436
Information about Implementing OSPF
437
OSPF Functional Overview
437
Key Features Supported in the Cisco IOS XR Software OSPF Implementation
438
Comparison of Cisco IOS XR Software Ospfv3 and Ospfv2
439
OSPF Hierarchical CLI and CLI Inheritance
439
OSPF Routing Components
440
Autonomous Systems
440
Areas
441
Backbone Area
441
Stub Area
441
Not-So-Stubby Area
441
Routers
442
Area Border Routers
442
Autonomous System Boundary Routers (ASBR)
442
Interior Routers
442
OSPF Process and Router ID
442
Supported OSPF Network Types
443
Route Authentication Methods for OSPF
443
Plain Text Authentication
443
MD5 Authentication
443
Authentication Strategies
444
Key Rollover
444
Neighbors and Adjacency for OSPF
444
OSPF Strict-Mode Support for BFD Dampening
444
Enabling Strict-Mode
445
BFD Strict-Mode: Example
446
OSPF FIB Download Notification
447
Designated Router (DR) for OSPF
447
Default Route for OSPF
447
Link-State Advertisement Types for OSPF Version 2
447
Link-State Advertisement Types for Ospfv3
448
Virtual Link and Transit Area for OSPF
449
Passive Interface
450
Ospfv2 Sham Link Support for MPLS VPN
450
Ospfv3 Sham Link Support for MPLS VPN
452
Graceful Restart Procedure over the Sham-Link
453
ECMP and Ospfv3 Sham-Link
453
OSPF SPF Prefix Prioritization
453
Route Redistribution for OSPF
454
OSPF Shortest Path First Throttling
454
Nonstop Forwarding for OSPF Version 2
455
Graceful Shutdown for Ospfv3
456
Modes of Graceful Restart Operation
456
Restart Mode
456
Helper Mode
457
Protocol Shutdown Mode
457
Protocol Restoration
458
Graceful Restart Requirements and Restrictions
458
Warm Standby and Nonstop Routing for OSPF Version 2
459
Warm Standby for OSPF Version 3
460
Multicast-Intact Support for OSPF
460
Load Balancing in OSPF Version 2 and Ospfv3
460
Multi-Area Adjacency for OSPF Version 2
461
Label Distribution Protocol IGP Auto-Configuration for OSPF
461
OSPF Authentication Message Digest Management
462
GTSM TTL Security Mechanism for OSPF
462
Path Computation Element for Ospfv2
462
OSPF IP Fast Reroute Loop Free Alternate
463
Management Information Base (MIB) for Ospfv3
463
VRF-Lite Support for Ospfv2
464
Update
464
Unequal Cost Multipath Load-Balancing for OSPF
464
How to Implement OSPF
465
Enabling OSPF
465
Configuring Stub and Not-So-Stubby Area Types
467
Configuring Neighbors for Nonbroadcast Networks
469
Configuring Authentication at Different Hierarchical Levels for OSPF Version
473
Controlling the Frequency that the same LSA Is Originated or Accepted for OSPF
476
Creating a Virtual Link with MD5 Authentication to Area 0 for OSPF
478
Examples
481
Summarizing Subnetwork Lsas on an OSPF ABR
482
Redistribute Routes into OSPF
484
Configuring OSPF Shortest Path First Throttling
486
Examples
488
Configuring OSPF Version 2 for MPLS Traffic Engineering
490
Examples
492
Configuring Ospfv3 Graceful Restart
494
Displaying Information about Graceful Restart
495
Configuring an Ospfv2 Sham Link
496
Enabling Nonstop Routing for Ospfv2
499
Enabling Nonstop Routing for Ospfv3
500
Configuring OSPF SPF Prefix Prioritization
500
Enabling Multicast-Intact for Ospfv2
502
Associating Interfaces to a VRF
502
Configuring OSPF as a Provider Edge to Customer Edge (PE-CE) Protocol
504
Creating Multiple OSPF Instances (OSPF Process and a VRF)
506
Configuring Multi-Area Adjacency
507
Configuring Label Distribution Protocol IGP Auto-Configuration for OSPF
509
Configuring LDP IGP Synchronization: OSPF
510
Configuring Authentication Message Digest Management for OSPF
511
Examples
512
Configuring Generalized TTL Security Mechanism (GTSM) for OSPF
513
Examples
515
Verifying OSPF Configuration and Operation
515
Configuring IP Fast Reroute Loop-Free Alternate
518
Enabling IPFRR LFA
518
Excluding an Interface from IP Fast Reroute Per-Link Computation
519
Enabling OSPF Interaction with SRMS Server
519
Configuration Examples for Implementing OSPF
521
Cisco IOS XR Software for OSPF Version 2 Configuration: Example
521
CLI Inheritance and Precedence for OSPF Version 2: Example
522
MPLS te for OSPF Version 2: Example
523
ABR with Summarization for Ospfv3: Example
523
ABR Stub Area for Ospfv3: Example
524
ABR Totally Stub Area for Ospfv3: Example
524
Configuring OSPF SPF Prefix Prioritization: Example
524
Route Redistribution for Ospfv3: Example
525
Virtual Link Configured through Area 1 for Ospfv3: Example
525
Virtual Link Configured with MD5 Authentication for OSPF Version 2: Example
526
VPN Backbone and Sham Link Configured for OSPF Version 2: Example
527
Where to Go Next
528
Additional References
528
Chapter 8 Implementing and Monitoring RIB
531
Prerequisites for Implementing RIB
532
Information about RIB Configuration
532
Overview of RIB
532
RIB Data Structures in BGP and Other Protocols
532
RIB Administrative Distance
533
RIB Support for Ipv4 and Ipv6
533
RIB Statistics
534
Ipv6 Provider Edge Ipv6 and Ipv6 VPN Provider Edge Transport over MPLS
534
RIB Quarantining
534
Route and Label Consistency Checker
535
How to Deploy and Monitor RIB
536
Verifying RIB Configuration Using the Routing Table
536
Verifying Networking and Routing Problems
537
Disabling RIB Next-Hop Dampening
538
Configuring RCC and LCC
539
Enabling RCC and LCC On-Demand Scan
539
Enabling RCC and LCC Background Scan
540
BGP-RIB Feedback Mechanism for Update Generation
542
Configuration Examples for RIB Monitoring
542
Output of Show Route Command: Example
542
Output of Show Route Backup Command: Example
543
Output of Show Route Best-Local Command: Example
543
Output of Show Route Connected Command: Example
543
Output of Show Route Local Command: Example
544
Output of Show Route Longer-Prefixes Command: Example
544
Output of Show Route Next-Hop Command: Example
544
Enabling RCC and LCC: Example
545
Where to Go Next
545
Additional References
546
Chapter 9 Implementing RIP
549
Prerequisites for Implementing RIP
550
Information about Implementing RIP
550
RIP Functional Overview
550
Split Horizon for RIP
551
Route Timers for RIP
551
Route Redistribution for RIP
552
Default Administrative Distances for RIP
552
Routing Policy Options for RIP
553
Authentication Using Keychain in RIP
553
In-Bound RIP Traffic on an Interface
554
Out-Bound RIP Traffic on an Interface
555
How to Implement RIP
555
Enabling RIP
555
Customizing RIP
557
Control Routing Information
559
Creating a Route Policy for RIP
561
Configuring RIP Authentication Keychain
562
Configuring RIP Authentication Keychain for Ipv4 Interface on a Non-Default
562
Vrf
562
Configuring RIP Authentication Keychain for Ipv4 Interface on Default VRF
564
Configuration Examples for Implementing RIP
565
Configuring a Basic RIP Configuration: Example
565
Configuring RIP on the Provider Edge: Example
565
Adjusting RIP Timers for each VRF Instance: Example
566
Configuring Redistribution for RIP: Example
566
Configuring Route Policies for RIP: Example
567
Configuring Passive Interfaces and Explicit Neighbors for RIP: Example
567
Controlling RIP Routes: Example
568
Configuring RIP Authentication Keychain: Example
568
Additional References
568
Chapter 1 0 Implementing Routing Policy
571
Prerequisites for Implementing Routing Policy
572
Restrictions for Implementing Routing Policy
572
Information about Implementing Routing Policy
573
Routing Policy Language
573
Routing Policy Language Overview
573
Routing Policy Language Structure
574
Names
574
Sets
574
As-Path-Set
575
Community-Set
576
Extcommunity-Set
577
Prefix-Set
580
Enhanced Prefix-Length Manipulation
582
ACL Support in RPL Prefix Sets
582
Rd-Set
582
Routing Policy Language Components
583
Routing Policy Language Usage
583
Routing Policy Configuration Basics
585
Policy Definitions
586
Parameterization
586
Parameterization at Attach Points
587
Global Parameterization
588
Semantics of Policy Application
588
Boolean Operator Precedence
588
Multiple Modifications of the same Attribute
589
When Attributes Are Modified
590
Default Drop Disposition
590
Control Flow
590
Policy Verification
591
Range Checking
591
Incomplete Policy and Set References
591
Attached Policy Modification
592
Verification of Attribute Comparisons and Actions
592
Policy Statements
592
Remark
593
Disposition
593
Action
595
Boolean Conditions
596
Apply
597
Attach Points
597
BGP Policy Attach Points
598
Additional-Path
598
Dampening
598
Default Originate
599
Neighbor Export
599
Neighbor Import
600
Network
600
Redistribute
601
Show BGP
601
Table Policy
602
Import
603
Export
603
Allocate-Label
604
Retain Route-Target
604
Label-Mode
605
Neighbor-ORF
605
Next-Hop
606
Clear-Policy
606
Debug
607
BGP Attributes and Operators
607
Default-Information Originate
621
RPL - if Prefix Is-Best-Path/Is-Best-Multipath
622
OSPF Policy Attach Points
623
Default-Information Originate
623
Redistribute
623
Area-In
624
Area-Out
624
SPF Prefix-Priority
625
OSPF Attributes and Operators
625
Distribute-List in
626
Ospfv3 Policy Attach Points
626
Default-Information Originate
627
Redistribute
627
Ospfv3 Attributes and Operators
627
IS-IS Policy Attach Points
628
Redistribute
628
Default-Information Originate
629
Inter-Area-Propagate
629
IS-IS Attributes and Operators
629
EIGRP Policy Attach Points
630
Default-Accept-In
630
Default-Accept-Out
631
Policy-In
631
Policy-Out
631
If-Policy-In
632
If-Policy-Out
632
Redistribute
632
EIGRP Attributes and Operators
633
RIP Policy Attach Points
634
Default-Information Originate
634
Redistribute
634
Global-Inbound
635
Global-Outbound
635
Interface-Inbound
635
Interface-Outbound
635
RIP Attributes and Operators
635
PIM Policy Attach Points
637
Nondestructive Editing of Routing Policy
637
Attached Policy Modification
637
Nonattached Policy Modification
637
Editing Routing Policy Configuration Elements
638
Editing Routing Policy Configuration Elements Using the Nano Editor
638
Editing Routing Policy Configuration Elements Using the Emacs Editor
638
Editing Routing Policy Configuration Elements Using the VIM Editor
639
Editing Routing Policy Configuration Elements Using CLI
639
Editing Routing Policy Language Set Elements Using XML
640
Hierarchical Policy Conditions
640
Apply Condition Policies
640
Behavior of Pass/Drop/Done RPL Statements for Simple Hierarchical Policies
641
Behavior of Pass/Drop/Done RPL Statements for Hierarchical Policy
641
Conditions
641
Nested Wildcard Apply Policy
642
Wildcards for Route Policy Sets
643
Use Wildcards for Routing Policy Sets
643
VRF Import Policy Enhancement
647
Flexible L3VPN Label Allocation Mode
647
Match Aggregated Route
647
Remove Private as in Inbound Policy
648
Set Administrative Distance
648
How to Implement Routing Policy
648
Defining a Route Policy
648
Attaching a Routing Policy to a BGP Neighbor
649
Modifying a Routing Policy Using a Text Editor
650
Configuration Examples for Implementing Routing Policy
651
Routing Policy Definition: Example
651
Simple Inbound Policy: Example
652
Modular Inbound Policy: Example
653
Use Wildcards for Routing Policy Sets
654
VRF Import Policy Configuration: Example
658
Additional References
658
Chapter 1 1 Implementing Static Routes
661
Prerequisites for Implementing Static Routes
662
Restrictions for Implementing Static Routes
662
Information about Implementing Static Routes
662
Static Route Functional Overview
662
Default Administrative Distance
662
Directly Connected Routes
663
Recursive Static Routes
663
Fully Specified Static Routes
664
Floating Static Routes
664
Default VRF
664
Ipv4 and Ipv6 Static VRF Routes
664
Dynamic ECMP
665
How to Implement Static Routes
665
Configure Static Route
665
Configure Floating Static Route
666
Configure Static Routes between PE-CE Routers
668
Change Maximum Number of Allowable Static Routes
669
Associate VRF with a Static Route
670
Configuration Examples
671
Configuring Traffic Discard: Example
671
Configuring a Fixed Default Route: Example
672
Configuring a Floating Static Route: Example
672
Configure Native UCMP for Static Routing
672
Configuring a Static Route between PE-CE Routers: Example
674
Additional References
674
Chapter 1 2 Implementing RCMD
677
Route Convergence Monitoring and Diagnostics
677
Configuring Route Convergence Monitoring and Diagnostics
678
Route Convergence Monitoring and Diagnostics Prefix Monitoring
681
Route Convergence Monitoring and Diagnostics OSPF Type 3/5/7 Link-State Advertisements
681
Enabling RCMD Monitoring for IS-IS Prefixes
681
Enable RCMD Monitoring for OSPF Prefixes
682
Enabling RCMD Monitoring for Type 3/5/7 OSPF Lsas
683
Enabling RCMD Monitoring for IS-IS Prefixes: Example
684
Enabling RCMD Monitoring for OSPF Prefixes: Example
684
Enabling RCMD Monitoring for Type 3/5/7 OSPF Lsas: Example
685
Chapter 1 3 Implementing Data Plane Security
687
Information about Data Plane Security
687
Source RLOC Decapsulation Filtering
688
EID Instance Membership Distribution
688
Map-Server Membership Gleaning and Distribution
689
Decapsulation Filtering on (P)Xtrs
691
TCP-Based Reliable Transport Sessions
692
How to Implement Data Plane Security
692
Enable Source RLOC-Based Decapsulation Filtering
692
Create, Maintain and Distribute Decapsulation Filter Lists
697
Add or Override Decapsulation Filter List
697
Reset LISP TCP Reliable Transport Session
698
Verify Data Plane Security Configurations
698
Additional References
702
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
Configuration Guide
604 pages
Reference Guide
696 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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