Users Guide

QoS dot1p Traffic Classification and Queue Assignment......................................................................................284
Configuring the Dynamic Buffer Method..................................................................................................................284
Sample DCB Configuration...........................................................................................................................................285
Chapter 13: Dynamic Host Configuration Protocol (DHCP)........................................................ 288
DHCP Packet Format and Options.............................................................................................................................288
Assign an IP Address using DHCP.............................................................................................................................. 289
Implementation Information......................................................................................................................................... 290
Configure the System to be a DHCP Server............................................................................................................ 291
Configuring the Server for Automatic Address Allocation...............................................................................291
Specifying a Default Gateway................................................................................................................................292
Configure a Method of Hostname Resolution....................................................................................................293
Using DNS for Address Resolution....................................................................................................................... 293
Using NetBIOS WINS for Address Resolution....................................................................................................293
Creating Manual Binding Entries........................................................................................................................... 293
Debugging the DHCP Server..................................................................................................................................294
Using DHCP Clear Commands...............................................................................................................................294
Configure the System to be a DHCP Client............................................................................................................. 294
Configuring the DHCP Client System.................................................................................................................. 295
DHCP Client on a Management Interface...........................................................................................................296
DHCP Client Operation with Other Features.....................................................................................................296
Configuring DHCP relay source interface................................................................................................................. 297
Global DHCP relay source IPv4 or IPv6 configuration ....................................................................................297
Interface level DHCP relay source IPv4 or IPv6 configuration .....................................................................298
Configure Secure DHCP............................................................................................................................................... 299
Option 82 (DHCPv4 relay options).......................................................................................................................299
DHCPv6 relay agent options..................................................................................................................................300
DHCP Snooping.........................................................................................................................................................300
Drop DHCP Packets on Snooped VLANs Only.................................................................................................. 304
Dynamic ARP Inspection......................................................................................................................................... 304
Configuring Dynamic ARP Inspection.................................................................................................................. 305
Source Address Validation............................................................................................................................................306
Enabling IP Source Address Validation................................................................................................................ 306
DHCP MAC Source Address Validation............................................................................................................... 307
Enabling IP+MAC Source Address Validation.....................................................................................................307
Viewing the Number of SAV Dropped Packets................................................................................................. 308
Clearing the Number of SAV Dropped Packets.................................................................................................308
Chapter 14: Equal Cost Multi-Path (ECMP)............................................................................... 309
ECMP for Flow-Based Affinity.................................................................................................................................... 309
Configuring the Hash Algorithm............................................................................................................................309
Enabling Deterministic ECMP Next Hop............................................................................................................. 309
Configuring the Hash Algorithm Seed.................................................................................................................. 310
Link Bundle Monitoring...................................................................................................................................................310
Managing ECMP Group Paths.................................................................................................................................311
Creating an ECMP Group Bundle........................................................................................................................... 311
Modifying the ECMP Group Threshold................................................................................................................. 311
Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table...............................312
Support for ECMP in host table.............................................................................................................................312
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