Specifications

Contents
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Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E
78-14064-04
Enabling EtherChannel Guard 16-14
Enabling Root Guard 16-14
Enabling Loop Guard 16-15
CHAPTER
17 Configuring IP Unicast Layer 3 Switching on Supervisor Engine 2 17-1
Understanding How Layer 3 Switching Works 17-1
Understanding Hardware Layer 3 Switching on PFC2 and DFCs 17-2
Understanding Layer 3-Switched Packet Rewrite 17-2
Default Hardware Layer 3 Switching Configuration 17-4
Layer 3 Switching Configuration Guidelines and Restrictions 17-4
Configuring Hardware Layer 3 Switching 17-5
Displaying Hardware Layer 3 Switching Statistics 17-6
CHAPTER
18 Configuring IP Multicast Layer 3 Switching 18-1
Understanding How IP Multicast Layer 3 Switching Works 18-1
IP Multicast Layer 3 Switching Overview 18-2
Multicast Layer 3 Switching Cache 18-2
IP Multicast Layer 3 Switching Flow Mask 18-3
Layer 3-Switched Multicast Packet Rewrite 18-3
Partially and Completely Switched Flows 18-4
Non-RPF Traffic Processing 18-5
Default IP Multicast Layer 3 Switching Configuration 18-7
IP Multicast Layer 3 Switching Configuration Guidelines and Restrictions 18-8
PFC2 with MSCF2 18-8
PFC1 with MSFC or MSCF2 18-8
PFC1 and PFC2 General Restrictions 18-9
Unsupported Features 18-9
Configuring IP Multicast Layer 3 Switching 18-9
Source Specific Multicast with IGMPv3, IGMP v3lite, and URD 18-10
Enabling IP Multicast Routing Globally 18-10
Enabling IP PIM on Layer 3 Interfaces 18-10
Enabling IP Multicast Layer 3 Switching on Layer 3 Interfaces 18-11
Configuring the Layer 3 Switching Global Threshold 18-11
Enabling Installation of Directly Connected Subnets 18-12
Enabling NetFlow-Based Rate Limiting of RPF Failures 18-12
Enabling CEF-Based Rate Limiting of RPF Failures 18-13
Enabling Shortcut-Consistency Checking 18-13
Configuring ACL-Based Filtering of RPF Failures 18-14