Cisco Nexus 7000 Series User 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

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Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
©2008–2009 Cisco Systems, Inc. All rights reserved.

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CONTENTS
New and Changed Information i
Preface iii
Audience iii
Organization iii
Document Conventions iv
Related Documentation v
Obtaining Documentation and Submitting a Service Request vi
CHAPTER 1Overview 1-1
Information About Layer 3 Unicast Routing 1-1
Routing Fundamentals 1-2
Packet Switching 1-2
Routing Metrics 1-3
Path Length 1-4
Reliability 1-4
Routing Delay 1-4
Bandwidth 1-4
Load 1-4
Communication Cost 1-4
Router IDs 1-5
Autonomous Systems 1-5
Convergence 1-6
Load Balancing and Equal Cost Multipath 1-6
Route Redistribution 1-6
Administrative Distance 1-7
Stub Routing 1-7
Routing Algorithms 1-8
Static Routes and Dynamic Routing Protocols 1-8
Interior and Exterior Gateway Protocols 1-8
Distance Vector Protocols 1-9
Link-State Protocols 1-9
Layer 3 Virtualization 1-10
Cisco NX-OS Fowarding Architecture 1-10

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Unicast RIB 1-11
Adjacency Manager 1-11
Unicast Forwarding Distribution Module 1-12
FIB 1-12
Hardware Forwarding 1-12
Software Forwarding 1-12
Summary of Layer 3 Unicast Routing Features 1-13
IPv4 and IPv6 1-13
IP Services 1-13
OSPF 1-13
EIGRP 1-14
IS-IS 1-14
BGP 1-14
RIP 1-14
Static Routing 1-14
Layer 3 Virtualization 1-15
Route Policy Manager 1-15
Policy-Based Routing 1-15
First-Hop Redundancy Protocols 1-15
Object Tracking 1-15
Related Topics 1-15
IP
CHAPTER 2Configuring IPv4 2-1
Information About IPv4 2-1
Multiple IPv4 Addresses 2-2
Address Resolution Protocol 2-2
ARP Caching 2-3
Static and Dynamic Entries in the ARP Cache 2-3
Devices that do not use ARP 2-4
Reverse ARP 2-4
Proxy ARP 2-5
Local Proxy ARP 2-5
Gratuitous ARP 2-5
ICMP 2-5
Virtualization Support 2-6
Licensing Requirements for IPv4 2-6
Prerequisites for IPv4 2-6

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Guidelines and Limitations 2-6
Configuring IPv4 2-6
Configuring IPv4 Addressing 2-7
Configuring Multiple IP Addresses 2-8
Configuring a Static ARP Entry 2-9
Configuring Proxy ARP 2-10
Configuring Local Proxy ARP 2-11
Configuring Gratuitous ARP 2-12
Configuring IP Packet Verification 2-13
Configuring IP Directed Broadcasts 2-14
Verifying the IPv4 Configuration 2-15
IPv4 Example Configuration 2-15
Default Settings 2-15
Additional References 2-15
Related Documents 2-16
Standards 2-16
Feature History for IP 2-16
CHAPTER 3Configuring IPv6 3-1
Information About IPv6 3-1
IPv6 Address Formats 3-2
IPv6 Unicast Addresses 3-3
Aggregatable Global Addresses 3-3
Link-Local Addresses 3-5
IPv4-Compatible IPv6 Addresses 3-5
Unique Local Addresses 3-6
Site-Local Address 3-7
IPv6 Anycast Addresses 3-7
IPv6 Multicast Addresses 3-7
IPv4 Packet Header 3-9
Simplified IPv6 Packet Header 3-9
DNS for IPv6 3-12
Path MTU Discovery for IPv6 3-12
CDP IPv6 Address Support 3-12
ICMP for IPv6 3-12
IPv6 Neighbor Discovery 3-13
IPv6 Neighbor Solicitation Message 3-13
IPv6 Router Advertisement Message 3-15
IPv6 Neighbor Redirect Message 3-16

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Virtualization Support 3-17
Licensing Requirements for IPv6 3-18
Prerequisites for IPv6 3-18
Guidelines and Limitations for IPv6 3-18
Configuring IPv6 3-18
Configuring IPv6 Addressing 3-19
Configuring IPv6 Neighbor Discovery 3-20
Optional IPv6 Neighbor Discovery 3-22
Configuring IPv6 Packet Verification 3-23
Verifying the IPv6 Configuration 3-24
IPv6 Example Configuration 3-24
Default Settings 3-24
Additional References 3-24
Related Documents 3-25
Standards 3-25
Feature History for IPv6 3-25
CHAPTER 4Configuring DNS 4-1
Information About DNS Clients 4-1
DNS Client Overview 4-1
Name Servers 4-2
DNS Operation 4-2
High Availability 4-2
Virtualization Support 4-2
Licensing Requirements for DNS Clients 4-2
Prerequisites for DNS Clients 4-3
Configuration Guidelines and Limitations 4-3
Configuring DNS Clients 4-3
Configuring the DNS Client 4-3
Configuring Virtualization 4-5
Verifying the DNS Client Configuration 4-7
DNS Client Example Configuration 4-7
Default Settings 4-7
Additional References 4-8
Related Documents 4-8
Standards 4-8
Feature History for DNS 4-8

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CHAPTER 5Configuring WCCPv2 5-1
Information About WCCPv2 5-1
WCCPv2 Overview 5-2
WCCPv2 Service Types 5-2
Service Groups 5-2
Service Group Lists 5-3
WCCPv2 Designated Cache Engine 5-4
Redirection 5-4
WCCPv2 Authentication 5-5
Redirection Method 5-5
Packet Return Method 5-5
High Availability for WCCPv2 5-6
Virtualization Support for WCCPv2 5-6
Licensing Requirements for WCCPv2 5-6
Prerequisites for WCCPv2 5-6
Guidelines and Limitations for WCCPv2 5-6
Configuring WCCPv2 5-7
Enabling the WCCPv2 Feature 5-7
Configuring a WCCPv2 Service Group 5-8
Applying WCCPv2 Redirection to an Interface 5-9
Configuring WCCPv2 in a VRF 5-10
Verifying WCCPv2 Configuration 5-12
WCCPv2 Example Configuration 5-12
Default Settings 5-13
Additional References 5-13
Related Documents 5-13
Standards 5-13
Feature History for WCCPv2 5-13
Routing
CHAPTER 6Configuring OSPFv2 6-1
Information About OSPFv2 6-1
Hello Packet 6-2
Neighbors 6-2
Adjacency 6-3
Designated Routers 6-3
Areas 6-4

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Link-State Advertisements 6-5
LSA Types 6-5
Link Cost 6-6
Flooding and LSA Group Pacing 6-6
Link-State Database 6-7
Opaque LSAs 6-7
OSPFv2 and the Unicast RIB 6-7
Authentication 6-7
Simple Password Authentication 6-8
MD5 Authentication 6-8
Advanced Features 6-8
Stub Area 6-8
Not-So-Stubby Area 6-9
Virtual Links 6-9
Route Redistribution 6-10
Route Summarization 6-10
High Availability and Graceful Restart 6-11
OSPFv2 Stub Router Advertisements 6-12
Multiple OSPFv2 Instances 6-12
SPF Optimization 6-12
Virtualization Support 6-12
Licensing Requirements for OSPFv2 6-12
Prerequisites for OSPFv2 6-13
Configuration Guidelines and Limitations 6-13
Configuring Basic OSPFv2 6-13
Enabling the OSPFv2 Feature 6-14
Creating an OSPFv2 Instance 6-15
Configuring Optional Parameters on an OSPFv2 Instance 6-16
Configuring Networks in OSPFv2 6-17
Configuring Authentication for an Area 6-19
Configuring Authentication for an Interface 6-21
Configuring Advanced OSPFv2 6-23
Configuring Filter Lists for Border Routers 6-23
Configuring Stub Areas 6-25
Configuring a Totally Stubby Area 6-26
Configuring NSSA 6-27
Configuring Virtual Links 6-29
Configuring Redistribution 6-31
Limiting the Number of Redistributed Routes 6-33

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Configuring Route Summarization 6-35
Configuring Stub Route Advertisements 6-36
Modifying the Default Timers 6-37
Configuring Graceful Restart 6-40
Restarting an OSPFv2 Instance 6-41
Configuring OSPFv2 with Virtualization 6-42
Verifying the OSPFv2 Configuration 6-44
Displaying OSPFv2 Statistics 6-45
OSPFv2 Example Configuration 6-45
Default Settings 6-45
Additional References 6-46
Related Documents 6-47
MIBs 6-47
Feature History for OSPFv2 6-47
CHAPTER 7Configuring OSPFv3 7-1
Information About OSPFv3 7-1
Comparison of OSPFv3 and OSPFv2 7-2
Hello Packet 7-2
Neighbors 7-3
Adjacency 7-3
Designated Routers 7-4
Areas 7-5
Link-State Advertisement 7-5
LSA Types 7-6
Link Cost 7-6
Flooding and LSA Group Pacing 7-7
Link-State Database 7-7
Multi-Area Adjacency 7-7
OSPFv3 and the IPv6 Unicast RIB 7-8
Address Family Support 7-8
Advanced Features 7-8
Stub Area 7-9
Not-So-Stubby Area 7-9
Virtual Links 7-10
Route Redistribution 7-10
Route Summarization 7-10
High Availability and Graceful Restart 7-11
Multiple OSPFv3 Instances 7-12

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SPF Optimization 7-12
Virtualization Support 7-12
Licensing Requirements for OSPFv3 7-12
Prerequisites for OSPFv3 7-12
Configuration Guidelines and Limitations 7-13
Configuring Basic OSPFv3 7-13
Enabling the OSPFv3 Feature 7-13
Creating an OSPFv3 Instance 7-14
Configuring Networks in OSPFv3 7-17
Configuring Advanced OSPFv3 7-19
Configuring Filter Lists for Border Routers 7-20
Configuring Stub Areas 7-21
Configuring a Totally Stubby Area 7-22
Configuring NSSA 7-23
Configuring Multi-Area Adjacency 7-25
Configuring Virtual Links 7-26
Configuring Redistribution 7-28
Limiting the Number of Redistributed Routes 7-30
Configuring Route Summarization 7-32
Modifying the Default Timers 7-34
Configuring Graceful Restart 7-36
Restarting an OSPFv3 Instance 7-37
Configuring OSPFv3 with Virtualization 7-38
Verifying OSPFv3 Configuration 7-40
Displaying OSPFv3 Statistics 7-40
OSPFv3 Example Configuration 7-41
Related Topics 7-41
Default Settings 7-41
Additional References 7-42
Related Documents 7-43
MIBs 7-43
Feature History for OSPFv3 7-43
CHAPTER 8Configuring EIGRP 8-1
Information About EIGRP 8-1
EIGRP Components 8-2
Reliable Transport Protocol 8-2
Neighbor Discovery and Recovery 8-2

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Diffusing Update Algorithm 8-3
EIGRP Route Updates 8-3
Internal Route Metrics 8-3
External Route Metrics 8-4
EIGRP and the Unicast RIB 8-4
Advanced EIGRP 8-4
Address Families 8-5
Authentication 8-5
Stub Routers 8-6
Route Summarization 8-6
Route Redistribution 8-6
Load Balancing 8-6
Split Horizon 8-7
Virtualization Support 8-7
Graceful Restart and High Availability 8-7
Licensing Requirements for EIGRP 8-8
Prerequisites for EIGRP 8-8
Configuration Guidelines and Limitations 8-9
Configuring Basic EIGRP 8-9
Enabling the EIGRP Feature 8-9
Creating an EIGRP Instance 8-10
Restarting an EIGRP Instance 8-12
Shutting Down an EIGRP Instance 8-13
Configuring a Passive Interface for EIGRP 8-13
Shutting Down EIGRP on an Interface 8-14
Configuring Advanced EIGRP 8-14
Configuring Authentication in EIGRP 8-14
Configuring EIGRP Stub Routing 8-17
Configuring a Summary Address for EIGRP 8-17
Redistributing Routes into EIGRP 8-18
Limiting the Number of Redistributed Routes 8-20
Configuring Load Balancing in EIGRP 8-22
Configuring Graceful Restart for EIGRP 8-23
Adjusting the Interval Between Hello Packets and the Hold Time 8-25
Disabling Split Horizon 8-25
Tuning EIGRP 8-26
Configuring Virtualization for EIGRP 8-28
Verifying EIGRP Configuration 8-30
Displaying EIGRP Statistics 8-30

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EIGRP Example Configuration 8-30
Related Topics 8-31
Default Settings 8-31
Additional References 8-31
Related Documents 8-32
MIBs 8-32
Feature History for EIGRP 8-32
CHAPTER 9Configuring IS-IS 9-1
Information about IS-IS 9-1
IS-IS Overview 9-2
IS-IS Areas 9-2
NET and System ID 9-3
Designated Intermediate System 9-3
IS-IS Authentication 9-3
Mesh Groups 9-4
Overload Bit 9-4
Route Summarization 9-4
Route Redistribution 9-5
Load Balancing 9-5
Virtualization Support 9-5
High Availability and Graceful Restart 9-5
Multiple IS-IS Instances 9-5
Licensing Requirements for IS-IS 9-6
Prerequisites for IS-IS 9-6
Configuration Guidelines and Limitations 9-6
Configuring IS-IS 9-6
IS-IS Configuration Modes 9-7
Enabling the IS-IS Feature 9-7
Creating an IS-IS Instance 9-8
Restarting an IS-IS Instance 9-10
Shutting Down IS-IS 9-11
Configuring IS-IS on an Interface 9-11
Shutdown IS-IS on an Interface 9-13
Configuring IS-IS Authentication in an Area 9-13
Configuring IS-IS Authentication on an Interface 9-14
Configuring a Mesh Group 9-16
Configuring a Designated Intermediate System 9-16
Configuring Dynamic Host Exchange 9-16

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Setting the Overload Bit 9-16
Configuring the Attached Bit 9-17
Configuring the Transient Mode for Hello Padding 9-17
Configuring a Summary Address 9-17
Configuring Redistribution 9-19
Limiting the Number of Redistributed Routes 9-20
Configuring a Graceful Restart 9-22
Configuring Virtualization 9-23
Tuning IS-IS 9-26
Verifying IS-IS Configuration 9-28
Displaying IS-IS Statistics 9-29
IS-IS Example Configuration 9-29
Related Topics 9-30
Default Settings 9-30
Additional References 9-30
Related Documents 9-31
Standards 9-31
Feature History for IS-IS 9-31
CHAPTER 10 Configuring Basic BGP 10-1
Information About Basic BGP 10-1
BGP Autonomous Systems 10-2
4-Byte AS Number Support 10-2
Administrative Distance 10-2
BGP Peers 10-3
BGP Sessions 10-3
Dynamis AS Numbers for Prefix Peers 10-3
BGP Router Identifier 10-4
BGP Path Selection 10-4
Step 1—Comparing Pairs of Paths 10-4
Step 2—Determining the Order of Comparisons 10-6
Step 3—Determining the Best-Path Change Suppression 10-6
BGP and the Unicast RIB 10-7
BGP Virtualization 10-7
Licensing Requirements for Basic BGP 10-7
Prerequisites for BGP 10-7
Guidelines and Limitations for BGP 10-8
CLI Configuration Modes 10-8

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Global Configuration Mode 10-8
Address Family Configuration Mode 10-9
Neighbor Configuration Mode 10-9
Neighbor Address Family Configuration Mode 10-10
Configuring Basic BGP 10-10
Enabling the BGP Feature 10-10
Creating a BGP Instance 10-11
Restarting a BGP Instance 10-13
Shutting Down BGP 10-13
Configuring BGP Peers 10-14
Configuring Dynamic AS Numbers for Prefix Peers 10-16
Clearing BGP Information 10-18
Verifying Basic BGP Configuration 10-21
Displaying BGP Statistics 10-23
Basic BGP Example Configuration 10-23
Related Topics 10-23
Where to Go Next 10-24
Default Settings 10-24
Additional References 10-24
Related Documents 10-25
MIBs 10-25
Feature History for BGP 10-25
CHAPTER 11 Configuring Advanced BGP 11-1
Information About Advanced BGP 11-1
Peer Templates 11-2
Authentication 11-2
Route Policies and Resetting BGP Sessions 11-3
eBGP 11-3
iBGP 11-3
AS Confederations 11-4
Route Reflector 11-5
Capabilities Negotiation 11-6
Route Dampening 11-6
Load Sharing and Multipath 11-7
Route Aggregation 11-7
BGP Conditional Advertisement 11-8
BGP Next-Hop Address Tracking 11-8

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Route Redistribution 11-9
Tuning BGP 11-9
BGP Timers 11-9
Tuning the Best-Path Algorithm 11-9
Multiprotocol BGP 11-9
Graceful Restart and High Availability 11-10
Low Memory Handling 11-10
ISSU 11-11
Virtualization Support 11-11
Licensing Requirements for Advanced BGP 11-11
Prerequisites for BGP 11-12
Guidelines and Limitations for BGP 11-12
Configuring Advanced BGP 11-13
Configuring BGP Session Templates 11-13
Configuring BGP Peer-Policy Templates 11-16
Configuring BGP Peer Templates 11-18
Configuring Prefix Peering 11-21
Configuring BGP Authentication 11-21
Resetting a BGP Session 11-22
Modifying the Next-Hop Address 11-22
Configuring BGP Next-Hop Address Tracking 11-23
Configuring Next-Hop Filtering 11-23
Disabling Capabilities Negotiation 11-24
Configuring eBGP 11-24
Disabling eBGP Single-Hop Checking 11-24
Configuring eBGP Multihop 11-25
Disabling a Fast External Fallover 11-25
Limiting the AS-path Attribute 11-25
Configuring AS Confederations 11-25
Configuring Route Reflector 11-26
Configuring Route Dampening 11-28
Configuring Load Sharing and ECMP 11-29
Configuring Maximum Prefixes 11-29
Configuring Dynamic Capability 11-29
Configuring Aggregate Addresses 11-30
Configuring BGP Conditional Advertisement 11-30
Configuring Route Redistribution 11-32
Configuring Multiprotocol BGP 11-35
Tuning BGP 11-36

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Configuring a Graceful Restart 11-39
Configuring Virtualization 11-40
Verifying Advanced BGP Configuration 11-42
Displaying BGP Statistics 11-44
Related Topics 11-44
Default Settings 11-44
Additional References 11-45
Related Documents 11-45
MIBs 11-45
Feature History for BGP 11-45
CHAPTER 12 Configuring RIP 12-1
Information About RIP 12-1
RIP Overview 12-2
RIPv2 Authentication 12-2
Split Horizon 12-2
Route Filtering 12-3
Route Summarization 12-3
Route Redistribution 12-3
Load Balancing 12-4
High Availability 12-4
Virtualization Support 12-4
Licensing Requirements for RIP 12-4
Prerequisites for RIP 12-4
Configuration Guidelines and Limitations 12-4
Configuring RIP 12-5
Enabling the RIP Feature 12-5
Creating a RIP Instance 12-6
Restarting a RIP Instance 12-8
Configuring RIP on an Interface 12-8
Configuring RIP Authentication 12-9
Configuring a Passive Interface 12-10
Configuring Split Horizon with Poison Reverse 12-11
Configuring Route Summarization 12-11
Configuring Route Redistribution 12-11
Configuring Virtualization 12-13
Tuning RIP 12-15
Verifying RIP Configuration 12-17

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Displaying RIP Statistics 12-17
RIP Example Configuration 12-18
Related Topics 12-18
Default Settings 12-18
Additional References 12-18
Related Documents 12-19
Standards 12-19
Feature History for RIP 12-19
CHAPTER 13 Configuring Static Routing 13-1
Information About Static Routing 13-1
Administrative Distance 13-2
Directly Connected Static Routes 13-2
Fully Specified Static Routes 13-2
Floating Static Routes 13-2
Remote Next Hops for Static Routes 13-3
Virtualization Support 13-3
Licensing Requirements for Static Routing 13-3
Prerequisites for Static Routing 13-3
Guidelines and Limitations 13-3
Configuring Static Routing 13-3
Configuring a Static Route 13-4
Configuring Virtualization 13-5
Verifying Static Routing Configuration 13-6
Static Routing Example Configuration 13-6
Default Settings 13-7
Additional References 13-7
Related Documents 13-7
Feature History for Static Routing 13-7
CHAPTER 14 Configuring Layer 3 Virtualization 14-1
Layer 3 Virtualization 14-1
Overview of Layer 3 Virtualization 14-1
VRF and Routing 14-2
VRF-Aware Services 14-3
Reachability 14-4
Filtering 14-4
Combining Reachability and Filtering 14-5

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Licensing Requirements for VRFs 14-5
Prerequisites for VRF 14-6
Guidelines and Limitations 14-6
Configuring VRFs 14-6
Creating a VRF 14-6
Assigning VRF Membership to an Interface 14-8
Configuring VRF Parameters for a Routing Protocol 14-9
Configuring a VRF-Aware Service 14-11
Setting the VRF Scope 14-12
Verifying VRF Configuration 14-13
VRF Example Configuration 14-13
Related Topics 14-14
Default Settings 14-14
Additional References 14-15
Related Documents 14-15
Standards 14-15
Feature History for VRF 14-15
CHAPTER 15 Managing the Unicast RIB and FIB 15-1
Information About the Unicast RIB and FIB 15-1
Layer 3 Consistency Checker 15-2
Dynamic TCAM Allocation 15-2
Virtualization Support 15-3
Licensing Requirements for the Unicast RIB and FIB 15-3
Guidelines and Limitations 15-3
Managing the Unicast RIB and FIB 15-4
Displaying Module FIB Information 15-4
Configuring Load Sharing in the Unicast FIB 15-5
Configuring Per-Packet Load Sharing 15-6
Displaying Routing and Adjacency Information 15-7
Triggering the Layer 3 Consistency Checker 15-9
Clearing Forwarding Information in the FIB 15-10
Enabling Dynamic TCAM Allocation 15-10
Disabling Dynamic TCAM Allocation 15-10
Returning the TCAM to Default Settings 15-11
Estimating Memory Requirements for Routes 15-12
Clearing Routes in the Unicast RIB 15-13
Verifying the Unicast RIB and FIB 15-13

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Additional References 15-14
Related Documents 15-14
Feature History for Unicast RIB and FIB 15-14
15-14
CHAPTER 16 Configuring Route Policy Manager 16-1
Information About Route Policy Manager 16-1
Prefix Lists 16-2
Route Maps 16-2
Match Criteria 16-2
Set Changes 16-3
Access Lists 16-3
AS Numbers for BGP 16-3
AS-path Lists for BGP 16-3
Community Lists for BGP 16-4
Extended Community Lists for BGP 16-4
Route Redistribution and Route Maps 16-4
Policy-Based Routing 16-5
Licensing Requirements for Route Policy Manager 16-5
Prerequisites for Route Policy Manager 16-5
Guidelines and Limitations 16-5
Configuring Route Policy Manager 16-6
Configuring IP Prefix Lists 16-6
Configuring AS-path Lists 16-8
Configuring Community Lists 16-9
Configuring Extended Community Lists 16-10
Configuring Route Maps 16-11
Verifying Route Policy Manager Configuration 16-17
Route Policy Manager Example Configuration 16-17
Related Topics 16-18
Default Settings 16-18
Additional References 16-18
Related Documents 16-19
Standards 16-19
Feature History for Route Policy Manager 16-19
CHAPTER 17 Configuring Policy-Based Routing 17-1
Information About Policy Based Routing 17-1

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Contents
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Cisco Nexus 7000 Series NX-OS Unicast Routing Configuration Guide, Release 4.x
OL-20002-02
Policy Route Maps 17-2
Set Criteria for Policy-Based Routing 17-2
Licensing Requirements for Policy-Based Routing 17-3
Prerequisites for Policy-Based Routing 17-3
Guidelines and Limitations 17-3
Configuring Policy-Based Routing 17-3
Enabling the Policy-based Routing Feature 17-4
Configuring a Route Policy 17-5
Verifying Policy-Based Routing Configuration 17-7
Policy Based-Routing Example Configuration 17-7
Related Topics 17-8
Default Settings 17-8
Additional References 17-8
Related Documents 17-9
Standards 17-9
Feature History for Policy-Based Routing 17-9
First-Hop Redundancy Protocols
CHAPTER 18 Configuring GLBP 18-1
Information About GLBP 18-1
GLBP Overview 18-2
GLBP Active Virtual Gateway 18-2
GLBP Virtual MAC Address Assignment 18-2
GLBP Virtual Gateway Redundancy 18-3
GLBP Virtual Forwarder Redundancy 18-3
GLBP Authentication 18-4
GLBP Load Balancing and Tracking 18-5
High Availability 18-6
Virtualization Support 18-6
Licensing Requirements for GLBP 18-6
Prerequisites for GLBP 18-6
Guidelines and Limitations 18-7
Configuring GLBP 18-7
Enabling the GLBP Feature 18-7
Configuring GLBP Authentication 18-8
Configuring GLBP Load Balancing 18-10
Configuring GLBP Weighting and Tracking 18-10