Configure a DCBx Operation.......................................................................................................................................... 259DCBx Operation....................................................................................................................................................... 259DCBx Port Roles...................................................................................................................................................... 260DCB Configuration Exchange....................................................................................................................................261Configuration Source Election...................................................................................................................................261Propagation of DCB Information.............................................................................................................................. 262Auto-Detection and Manual Configuration of the DCBx Version.............................................................................. 262DCBx Example......................................................................................................................................................... 262DCBx Prerequisites and Restrictions........................................................................................................................ 263Configuring DCBx.................................................................................................................................................... 263Verifying the DCB Configuration.....................................................................................................................................267QoS dot1p Traffic Classification and Queue Assignment................................................................................................. 277Configuring the Dynamic Buffer Method........................................................................................................................ 278Sample DCB Configuration.............................................................................................................................................279PFC and ETS Configuration Command Examples.................................................................................................... 28014 Dynamic Host Configuration Protocol (DHCP)........................................................... 281DHCP Packet Format and Options................................................................................................................................. 281Assign an IP Address using DHCP.................................................................................................................................. 283Implementation Information............................................................................................................................................283Configure the System to be a DHCP Server.................................................................................................................. 284Configuring the Server for Automatic Address Allocation.........................................................................................284Specifying a Default Gateway.................................................................................................................................. 286Configure a Method of Hostname Resolution.......................................................................................................... 286Using DNS for Address Resolution........................................................................................................................... 286Using NetBIOS WINS for Address Resolution.......................................................................................................... 286Creating Manual Binding Entries.............................................................................................................................. 286Debugging the DHCP Server....................................................................................................................................287Using DHCP Clear Commands................................................................................................................................. 287Configure the System to be a Relay Agent..................................................................................................................... 287Configure the System to be a DHCP Client....................................................................................................................289Configuring the DHCP Client System.......................................................................................................................289DHCP Client on a Management Interface................................................................................................................ 290DHCP Client Operation with Other Features............................................................................................................ 291Configure the System for User Port Stacking (Option 230)........................................................................................... 292Configure Secure DHCP.................................................................................................................................................292Option 82................................................................................................................................................................. 292DHCP Snooping....................................................................................................................................................... 293Drop DHCP Packets on Snooped VLANs Only.........................................................................................................296Dynamic ARP Inspection.......................................................................................................................................... 296Configuring Dynamic ARP Inspection....................................................................................................................... 297Source Address Validation.............................................................................................................................................. 298Enabling IP Source Address Validation......................................................................................................................298DHCP MAC Source Address Validation.................................................................................................................... 299Enabling IP+MAC Source Address Validation........................................................................................................... 299Viewing the Number of SAV Dropped Packets.........................................................................................................29910
