Layer 3 Routing Configuration

This chapter describes the configuration steps of Layer 3 routing, including static routing, RIPv2, OSPFv2, VRRP, and ECMP.

ARP Configuration
- Dynamic ARP Inspection (DAI)
- Flushing ARP and the Neighbor Table
- Configuring ARP
Configuring IP Routing
Static Routing Configuration
- Configuring Static Routes
- Example for Configuring IPv4 Static Routes
VRF Configuration Guide
- Introduction to VRF
- Configuration Notes of VRF
- Configuring a User-defined VRF
- Enabling Management VRF
- Example for Configuring Basic VRF
DHCP Configuration
- Introduction to DHCP
- Configuration Notes of DHCP
- Configuring DHCP Server (IPv4)
- Configuring DHCP Relay
- Configuring DHCP Snooping
  - Configuring DHCP Snooping (IPv4)
  - Configuring DHCPv6 Snooping (IPv6)
- Typical Configuration Example for DHCP Relay and DHCP Snooping
- DHCPv6 Guard Configuration
- RFC Lists
Default Administrative Distance Values
OSPF (Open Shortest Path First)
- OSPF Overview
- Basic OSPF Configuration Tasks
- Configuring OSPF Route Summarization
- Basic OSPF Configuration Example
- OSPF Area Type Configuration Example: NSSA, Stub and Standard Areas
- OSPF Stub and NSSA Areas with no-summary
- OSPF Area Range Configuration Guide
- OSPF Route Redistribution and Route Maps
- Example for Configuring OSPF with Different VRFs
- OSPFv3 Configuration Guide
- OSPF Multi-Instance Support
- OSPF GR
ECMP (Equal-Cost Multipath Routing) Configuration
Symmetric Hash for ECMP Configuration Example
VRRP Configuration
- Principle of VRRP
- Configuration Notes of VRRP
- Configuring Standard VRRP
- Configuring Active-Active VRRP
- VRRP Configuration Example
IPv4/IPv6 BGP Configuration
- BGP Introduction
- BGP Regular Expressions
- Basic BGP Configuration
- Configuring BGP Security
- Configuring a BGP Route Reflector
- Configuring BGP Timers
- Configuring BGP Route Aggregation
- Configuring BGP Dynamic Neighbors
- Configuring eBGP Multihop
- Configuring Removing and Replacing Private ASNs from the AS Path
- Configuring BGP Multipath
- Configuring ebgp-requires-policy
- Enable BGP Read-only Mode
- Configuring Route Maps for Route Updates
- BGP Unnumbered
- Configuring BGP Attribute
- Configuration Examples
Routing Map Configuration
- Routing Map Introduction
- Configuring Filters
- Configuring a Routing Map
- Example for Filtering the Routes to Be Advertised and Receiving
IPv6 Support
- IPv6 Neighbor Discovery Configuration
- PICOS L2/L3 Support for IPv6
- Enable Path MTU Discovery
IPv6 Neighbor Discovery Inspection
- Overview of ND Inspection
- Configuring ND Inspection
- Example for ND Inspection
IPv6 Neighbor Discovery Snooping
- Overview of ND Snooping
- Operation Mechanism of ND Snooping
- Configuring ND Snooping
- Example for ND Snooping
VRF Route Leaking Configuration
- BGP Route Leaking Configuration Example
- Static Route Leaking Example
Bidirectional Forwarding Detection (BFD)
- Introduction of BFD
- Configuring BFD
  - Configuring Static BFD
  - Configuring Dynamic BFD
- Configuration Examples of BFD
- RFC Lists for BFD
RIP/RIPng Configuration
- RIP/RIPng Overview
- Enabling RIP/RIPng
- Configuring RIP Version
- Configuring RIP Route Redistribute
- Configuring RIPv2 Authentication
- Configuring RIP to Advertise Default Routes
- Example for Configuring Basic RIP
- Example for Configuring Basic RIPng
- RFC Lists for RIP/RIPng
Policy-Based Routing (PBR)
- Overview of PBR
- Configuring Policy-Based Routing
- Example for Configuring Policy-Based Routing
IPv4 Source Guard (IPSG for IPv4)
IPv6 Source Guard (IPSG for IPv6)
IS-IS Configuration
- IS-IS Overview
- Configuring IS-IS Basic Function
- Configuring IS-IS Authentication
- Configuring LSP Packet Attributes
- Customizing Routes for IS-IS
- Configuring IS-IS Timers
- Controlling IS-IS Routing Information Exchange
  - Configuring IS-IS Advertising Default Routes
  - Configuring IS-IS Introducing External Routes
- Adjusting SPF Calculation Time
- Configuration Examples of IS-IS
  - Basic IS-IS Configuration Example
  - Configuration Example of Interaction Between IS-IS and BGP