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Table Of Contents
QoS dot1p Traffic Classification and Queue Assignment.......................................................................................281
Configuring the Dynamic Buffer Method...................................................................................................................281
Sample DCB Configuration...........................................................................................................................................282
Chapter 13: Dynamic Host Configuration Protocol (DHCP)........................................................ 285
DHCP Packet Format and Options.............................................................................................................................285
Assign an IP Address using DHCP.............................................................................................................................. 286
Implementation Information..........................................................................................................................................287
Configure the System to be a DHCP Server............................................................................................................288
Configuring the Server for Automatic Address Allocation..............................................................................288
Specifying a Default Gateway................................................................................................................................289
Configure a Method of Hostname Resolution................................................................................................... 290
Using DNS for Address Resolution....................................................................................................................... 290
Using NetBIOS WINS for Address Resolution................................................................................................... 290
Creating Manual Binding Entries........................................................................................................................... 290
Debugging the DHCP Server.................................................................................................................................. 291
Using DHCP Clear Commands................................................................................................................................291
Configure the System to be a DHCP Client..............................................................................................................291
Configuring the DHCP Client System...................................................................................................................291
DHCP Client on a Management Interface...........................................................................................................293
DHCP Client Operation with Other Features.....................................................................................................293
Configuring DHCP relay source interface.................................................................................................................294
Global DHCP relay source IPv4 or IPv6 configuration ....................................................................................294
Interface level DHCP relay source IPv4 or IPv6 configuration .....................................................................294
Configure Secure DHCP............................................................................................................................................... 295
Option 82.................................................................................................................................................................... 296
DHCPv6 relay agent options..................................................................................................................................296
DHCP Snooping.........................................................................................................................................................296
Drop DHCP Packets on Snooped VLANs Only...................................................................................................301
Dynamic ARP Inspection.......................................................................................................................................... 301
Configuring Dynamic ARP Inspection................................................................................................................... 301
Source Address Validation............................................................................................................................................303
Enabling IP Source Address Validation................................................................................................................ 303
DHCP MAC Source Address Validation...............................................................................................................303
Enabling IP+MAC Source Address Validation.................................................................................................... 304
Viewing the Number of SAV Dropped Packets................................................................................................. 304
Clearing the Number of SAV Dropped Packets.................................................................................................305
Chapter 14: Equal Cost Multi-Path (ECMP)............................................................................... 306
ECMP for Flow-Based Affinity.................................................................................................................................... 306
Configuring the Hash Algorithm............................................................................................................................306
Enabling Deterministic ECMP Next Hop............................................................................................................. 306
Configuring the Hash Algorithm Seed..................................................................................................................307
Link Bundle Monitoring..................................................................................................................................................307
Managing ECMP Group Paths...............................................................................................................................308
Creating an ECMP Group Bundle..........................................................................................................................308
Modifying the ECMP Group Threshold................................................................................................................308
Support for /128 IPv6 and /32 IPv4 Prefixes in Layer 3 Host Table and LPM Table..............................309
Support for ECMP in host table............................................................................................................................309
Contents
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