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PFC and ETS Configuration Command Examples.....................................................................328

QoS dot1p Traffic Classification and Queue Assignment...............................................................328

Configuring the Dynamic Buffer Method........................................................................................330

14 Dynamic Host Configuration Protocol (DHCP)........................................332

DHCP Packet Format and Options.................................................................................................. 332

Assign an IP Address using DHCP....................................................................................................334

Implementation Information............................................................................................................335

Configure the System to be a DHCP Server....................................................................................336

Configuring the Server for Automatic Address Allocation........................................................ 336

Specifying a Default Gateway.....................................................................................................338

Configure a Method of Hostname Resolution.......................................................................... 338

Using DNS for Address Resolution.............................................................................................338

Using NetBIOS WINS for Address Resolution............................................................................338

Creating Manual Binding Entries................................................................................................ 339

Debugging the DHCP Server......................................................................................................339

Using DHCP Clear Commands.................................................................................................. 339

Configure the System to be a Relay Agent......................................................................................340

Configure the System to be a DHCP Client.................................................................................... 342

DHCP Client Operation with Other Features............................................................................ 342

DHCP Client on a Management Interface................................................................................. 343

Configure the System for User Port Stacking (Option 230)............................................................344

Configure Secure DHCP...................................................................................................................344

Option 82.................................................................................................................................... 344

DHCP Snooping..........................................................................................................................345

Drop DHCP Packets on Snooped VLANs Only..........................................................................349

Dynamic ARP Inspection............................................................................................................ 349

Configuring Dynamic ARP Inspection....................................................................................... 350

Source Address Validation................................................................................................................352

Enabling IP Source Address Validation.......................................................................................352

DHCP MAC Source Address Validation......................................................................................353

Enabling IP+MAC Source Address Validation............................................................................ 353

Viewing the Number of SAV Dropped Packets..........................................................................354

Clearing the Number of SAV Dropped Packets.........................................................................354

15 Equal Cost Multi-Path (ECMP)..................................................................... 355

ECMP for Flow-Based Affinity.......................................................................................................... 355

Configuring the Hash Algorithm................................................................................................ 355

Enabling Deterministic ECMP Next Hop.................................................................................... 355

Configuring the Hash Algorithm Seed....................................................................................... 356

Link Bundle Monitoring.................................................................................................................... 356

Managing ECMP Group Paths.....................................................................................................357

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