Reference Guide

Pause and Resume of Traffic......................................................................................................287
Buffer Sizes for Lossless or PFC Packets................................................................................... 288
Interworking of DCB Map With DCB Buffer Threshold Settings.................................................... 288
Configuring the Dynamic Buffer Method........................................................................................290
Applying a DCB Map in a Switch Stack ............................................................................................291
12 Dynamic Host Configuration Protocol (DHCP)..........................................292
DHCP Packet Format and Options.................................................................................................. 292
Assign an IP Address using DHCP....................................................................................................294
Implementation Information............................................................................................................295
Configure the System to be a DHCP Server....................................................................................296
Configuring the Server for Automatic Address Allocation........................................................296
Specifying a Default Gateway.....................................................................................................298
Configure a Method of Hostname Resolution.......................................................................... 298
Using DNS for Address Resolution.............................................................................................298
Using NetBIOS WINS for Address Resolution............................................................................298
Creating Manual Binding Entries................................................................................................299
Debugging the DHCP Server......................................................................................................299
Using DHCP Clear Commands.................................................................................................. 299
Configure the System to be a DHCP Client.................................................................................... 300
Configuring the DHCP Client System........................................................................................300
DHCP Client on a Management Interface................................................................................. 302
DHCP Client Operation with Other Features............................................................................ 302
Configure the System for User Port Stacking (Option 230)............................................................303
Configure Secure DHCP.................................................................................................................. 304
Option 82....................................................................................................................................304
DHCP Snooping..........................................................................................................................305
Drop DHCP Packets on Snooped VLANs Only..........................................................................307
Dynamic ARP Inspection............................................................................................................ 307
Configuring Dynamic ARP Inspection....................................................................................... 308
Source Address Validation................................................................................................................309
Enabling IP Source Address Validation...................................................................................... 309
DHCP MAC Source Address Validation...................................................................................... 310
Enabling IP+MAC Source Address Validation............................................................................ 310
13 Equal Cost Multi-Path (ECMP).........................................................................312
ECMP for Flow-Based Affinity...........................................................................................................312
Configuring the Hash Algorithm.................................................................................................312
Enabling Deterministic ECMP Next Hop.................................................................................... 312
Configuring the Hash Algorithm Seed........................................................................................313
Link Bundle Monitoring.....................................................................................................................313
Managing ECMP Group Paths.....................................................................................................314