Contents
30
Software Configuration Guide—Release IOS XE 3.9.xE and IOS 15.2(5)Ex
Software Interfaces 36-6
CEF Configuration Restrictions 36-6
Configuring CEF 36-6
Enabling CEF 36-6
Configuring Load Balancing for CEF 36-7
Configuring Per-Destination Load Balancing 36-7
Configuring Load Sharing Hash Function 36-7
Viewing CEF Information 36-8
Monitoring and Maintaining CEF 36-8
Displaying IP Statistics 36-8
Configuring Unicast Reverse Path Forwarding 37-1
About Unicast Reverse Path Forwarding 37-1
How Unicast RPF Works 37-2
Implementing Unicast RPF 37-4
Security Policy and Unicast RPF 37-5
Where to Use Unicast RPF 37-5
Routing Table Requirements 37-7
Where Not to Use Unicast RPF 37-7
Unicast RPF with BOOTP and DHCP 37-8
Restrictions 37-8
Limitation 37-8
Related Features and Technologies 37-8
Prerequisites to Configuring Unicast RPF 37-9
Unicast RPF Configuration Tasks 37-9
Configuring Unicast RPF 37-9
Verifying Unicast RPF 37-10
Monitoring and Maintaining Unicast RPF 37-11
Unicast RPF Configuration Example: Inbound and Outbound Filters 37-12
Configuring IP Multicast 38-1
About IP Multicast 38-1
IP Multicast Protocols 38-2
Internet Group Management Protocol 38-3
Protocol-Independent Multicast 38-3
Rendezvous Point (RP) 38-4
IGMP Snooping 38-4
IP Multicast Implementation on the Catalyst 4500 Series Switch 38-4
Restrictions on IP Multicast 38-5
CEF, MFIB, and Layer 2 Forwarding 38-6
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