DCBx Example............................................................................................................................ 266DCBx Prerequisites and Restrictions..........................................................................................266Configuring DCBx.......................................................................................................................266Verifying the DCB Configuration......................................................................................................270QoS dot1p Traffic Classification and Queue Assignment............................................................... 281Configuring the Dynamic Buffer Method........................................................................................ 282Sample DCB Configuration.............................................................................................................. 283PFC and ETS Configuration Command Examples.....................................................................28512 Dynamic Host Configuration Protocol (DHCP)........................................286DHCP Packet Format and Options.................................................................................................. 286Assign an IP Address using DHCP....................................................................................................288Implementation Information............................................................................................................289Configure the System to be a DHCP Server....................................................................................289Configuring the Server for Automatic Address Allocation........................................................290Specifying a Default Gateway.....................................................................................................292Configure a Method of Hostname Resolution.......................................................................... 292Using DNS for Address Resolution............................................................................................. 292Using NetBIOS WINS for Address Resolution............................................................................ 292Creating Manual Binding Entries................................................................................................ 292Debugging the DHCP Server......................................................................................................293Using DHCP Clear Commands.................................................................................................. 293Configure the System to be a DHCP Client.....................................................................................293Configuring the DHCP Client System........................................................................................294DHCP Client on a Management Interface................................................................................. 296DHCP Client Operation with Other Features............................................................................ 296Configure the System for User Port Stacking (Option 230)............................................................297Configure Secure DHCP...................................................................................................................297Option 82.................................................................................................................................... 298DHCP Snooping..........................................................................................................................298Drop DHCP Packets on Snooped VLANs Only..........................................................................302Dynamic ARP Inspection............................................................................................................ 302Configuring Dynamic ARP Inspection....................................................................................... 303Source Address Validation................................................................................................................304Enabling IP Source Address Validation...................................................................................... 305DHCP MAC Source Address Validation......................................................................................305Enabling IP+MAC Source Address Validation............................................................................ 305Viewing the Number of SAV Dropped Packets......................................................................... 306Clearing the Number of SAV Dropped Packets......................................................................... 30713 Equal Cost Multi-Path (ECMP)..................................................................... 308ECMP for Flow-Based Affinity..........................................................................................................30810
