Reference Guide

Displaying Dataplane Statistics...............................................................................................................................261
Displaying Line-Card Counters.............................................................................................................................. 262
Accessing Application Core Dumps............................................................................................................................ 263
Mini Core Dumps.............................................................................................................................................................263
Full Kernel Core Dumps................................................................................................................................................. 264
Enabling TCP Dumps......................................................................................................................................................264
Chapter 14: Dynamic Host Configuration Protocol (DHCP)........................................................ 265
DHCP Packet Format and Options.............................................................................................................................265
Assign an IP Address using DHCP.............................................................................................................................. 266
Implementation Information..........................................................................................................................................267
Configure the System to be a DHCP Server............................................................................................................268
Configuring the Server for Automatic Address Allocation..............................................................................268
Specifying a Default Gateway................................................................................................................................269
Configure a Method of Hostname Resolution....................................................................................................270
Using DNS for Address Resolution....................................................................................................................... 270
Using NetBIOS WINS for Address Resolution....................................................................................................270
Creating Manual Binding Entries........................................................................................................................... 270
Debugging the DHCP Server...................................................................................................................................271
Using DHCP Clear Commands................................................................................................................................ 271
Configure the System to be a Relay Agent............................................................................................................... 271
Configure the System to be a DHCP Client............................................................................................................. 273
DHCP Client on a Management Interface...........................................................................................................273
DHCP Client Operation with Other Features..................................................................................................... 273
Configure Secure DHCP................................................................................................................................................274
Option 82.....................................................................................................................................................................274
DHCP Snooping......................................................................................................................................................... 275
Drop DHCP Packets on Snooped VLANs Only.................................................................................................. 278
Dynamic ARP Inspection..........................................................................................................................................278
Configuring Dynamic ARP Inspection...................................................................................................................279
Source Address Validation............................................................................................................................................280
Enabling IP Source Address Validation................................................................................................................ 280
DHCP MAC Source Address Validation...............................................................................................................280
Enabling IP+MAC Source Address Validation.................................................................................................... 280
Viewing the Number of SAV Dropped Packets.................................................................................................. 281
Clearing the Number of SAV Dropped Packets..................................................................................................281
Chapter 15: Equal Cost Multi-Path (ECMP)............................................................................... 282
ECMP for Flow-Based Affinity.................................................................................................................................... 282
Enabling Deterministic ECMP Next Hop............................................................................................................. 282
Configuring the Hash Algorithm Seed..................................................................................................................282
Link Bundle Monitoring..................................................................................................................................................283
Managing ECMP Group Paths............................................................................................................................... 283
Creating an ECMP Group Bundle..........................................................................................................................283
Modifying the ECMP Group Threshold................................................................................................................284
ECMP Support in L3 Host and LPM Tables............................................................................................................. 284
Chapter 16: FCoE Transit...........................................................................................................286
Fibre Channel over Ethernet........................................................................................................................................286
Contents
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