DCBx Example............................................................................................................................ 266
DCBx Prerequisites and Restrictions..........................................................................................266
Configuring DCBx.......................................................................................................................266
Verifying the DCB Configuration......................................................................................................270
QoS dot1p Traffic Classification and Queue Assignment............................................................... 281
Configuring the Dynamic Buffer Method........................................................................................ 282
Sample DCB Configuration.............................................................................................................. 283
PFC and ETS Configuration Command Examples.....................................................................285
12 Dynamic Host Configuration Protocol (DHCP)........................................286
DHCP Packet Format and Options.................................................................................................. 286
Assign an IP Address using DHCP....................................................................................................288
Implementation Information............................................................................................................289
Configure the System to be a DHCP Server....................................................................................289
Configuring the Server for Automatic Address Allocation........................................................290
Specifying a Default Gateway.....................................................................................................292
Configure a Method of Hostname Resolution.......................................................................... 292
Using DNS for Address Resolution.............................................................................................292
Using NetBIOS WINS for Address Resolution............................................................................292
Creating Manual Binding Entries................................................................................................ 292
Debugging the DHCP Server......................................................................................................293
Using DHCP Clear Commands.................................................................................................. 293
Configure the System to be a DHCP Client.....................................................................................293
Configuring the DHCP Client System........................................................................................294
DHCP Client on a Management Interface................................................................................. 296
DHCP Client Operation with Other Features............................................................................ 296
Configure the System for User Port Stacking (Option 230)............................................................297
Configure Secure DHCP...................................................................................................................297
Option 82.................................................................................................................................... 298
DHCP Snooping..........................................................................................................................298
Drop DHCP Packets on Snooped VLANs Only..........................................................................302
Dynamic ARP Inspection............................................................................................................ 302
Configuring Dynamic ARP Inspection....................................................................................... 303
Source Address Validation................................................................................................................304
Enabling IP Source Address Validation...................................................................................... 305
DHCP MAC Source Address Validation......................................................................................305
Enabling IP+MAC Source Address Validation............................................................................305
Viewing the Number of SAV Dropped Packets......................................................................... 306
Clearing the Number of SAV Dropped Packets.........................................................................307
13 Equal Cost Multi-Path (ECMP)..................................................................... 308
ECMP for Flow-Based Affinity..........................................................................................................308
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