Setup Guide

DCB Conguration Exchange................................................................................................................................. 301
Conguration Source Election................................................................................................................................302
Propagation of DCB Information............................................................................................................................302
Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 302
DCBx Example......................................................................................................................................................... 303
DCBx Prerequisites and Restrictions.....................................................................................................................303
Conguring DCBx....................................................................................................................................................304
Verifying the DCB Conguration..................................................................................................................................307
QoS dot1p Trac Classication and Queue Assignment...........................................................................................314
Conguring the Dynamic Buer Method.................................................................................................................... 315
Sample DCB Conguration............................................................................................................................................316
PFC and ETS Conguration Command Examples............................................................................................... 318
13 Dynamic Host Conguration Protocol (DHCP)..........................................................................................319
DHCP Packet Format and Options.............................................................................................................................. 319
Assign an IP Address using DHCP................................................................................................................................321
Implementation Information..........................................................................................................................................322
Congure the System to be a DHCP Server..............................................................................................................322
Conguring the Server for Automatic Address Allocation..................................................................................323
Specifying a Default Gateway................................................................................................................................ 324
Congure a Method of Hostname Resolution..................................................................................................... 325
Using DNS for Address Resolution........................................................................................................................325
Using NetBIOS WINS for Address Resolution..................................................................................................... 325
Creating Manual Binding Entries............................................................................................................................325
Debugging the DHCP Server................................................................................................................................. 326
Using DHCP Clear Commands...............................................................................................................................326
Congure the System to be a DHCP Client............................................................................................................... 326
Conguring the DHCP Client System................................................................................................................... 327
DHCP Client on a Management Interface............................................................................................................ 328
DHCP Client Operation with Other Features.......................................................................................................329
DHCP Relay When DHCP Server and Client are in Dierent VRFs........................................................................ 330
Conguring Route Leaking between VRFs on DHCP Relay Agent................................................................... 330
Non-default VRF conguration for DHCPv6 helper address....................................................................................331
Conguring DHCP relay source interface....................................................................................................................331
Global DHCP relay source IPv4 or IPv6 conguration ........................................................................................331
Interface level DHCP relay source IPv4 or IPv6 conguration ..........................................................................332
Congure the System for User Port Stacking (Option 230)....................................................................................333
Congure Secure DHCP............................................................................................................................................... 333
Option 82 (DHCPv4 relay options)........................................................................................................................334
DHCPv6 relay agent options..................................................................................................................................335
DHCP Snooping.......................................................................................................................................................335
Drop DHCP Packets on Snooped VLANs Only....................................................................................................340
Dynamic ARP Inspection........................................................................................................................................ 340
Conguring Dynamic ARP Inspection....................................................................................................................341
Source Address Validation............................................................................................................................................ 343
Enabling IP Source Address Validation.................................................................................................................. 343
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