Concept Guide

Using ETS to Manage Converged Ethernet Trac...................................................................................................289
Applying DCB Policies in a Switch Stack.................................................................................................................... 289
Congure a DCBx Operation........................................................................................................................................289
DCBx Operation.......................................................................................................................................................289
DCBx Port Roles......................................................................................................................................................290
DCB Conguration Exchange................................................................................................................................. 291
Conguration Source Election................................................................................................................................ 291
Propagation of DCB Information............................................................................................................................292
Auto-Detection and Manual Conguration of the DCBx Version...................................................................... 292
DCBx Example..........................................................................................................................................................293
DCBx Prerequisites and Restrictions.....................................................................................................................293
Conguring DCBx....................................................................................................................................................293
Verifying the DCB Conguration..................................................................................................................................297
QoS dot1p Trac Classication and Queue Assignment..........................................................................................306
Conguring the Dynamic Buer Method....................................................................................................................307
Sample DCB Conguration...........................................................................................................................................308
PFC and ETS Conguration Command Examples............................................................................................... 310
13 Dynamic Host Conguration Protocol (DHCP).......................................................................................... 311
DHCP Packet Format and Options...............................................................................................................................311
Assign an IP Address using DHCP................................................................................................................................313
Implementation Information.......................................................................................................................................... 314
Congure the System to be a DHCP Server.............................................................................................................. 314
Conguring the Server for Automatic Address Allocation.................................................................................. 315
Specifying a Default Gateway.................................................................................................................................316
Congure a Method of Hostname Resolution...................................................................................................... 317
Using DNS for Address Resolution.........................................................................................................................317
Using NetBIOS WINS for Address Resolution...................................................................................................... 317
Creating Manual Binding Entries.............................................................................................................................317
Debugging the DHCP Server..................................................................................................................................318
Using DHCP Clear Commands............................................................................................................................... 318
Congure the System to be a Relay Agent................................................................................................................. 318
Congure the System to be a DHCP Client............................................................................................................... 320
Conguring the DHCP Client System...................................................................................................................320
DHCP Client on a Management Interface............................................................................................................ 322
DHCP Client Operation with Other Features.......................................................................................................322
DHCP Relay When DHCP Server and Client are in Dierent VRFs........................................................................ 323
Conguring Route Leaking between VRFs on DHCP Relay Agent................................................................... 323
Non-default VRF conguration for DHCPv6 helper address................................................................................... 324
Conguring DHCP relay source interface...................................................................................................................325
Global DHCP relay source IPv4 or IPv6 conguration ....................................................................................... 325
Interface level DHCP relay source IPv4 or IPv6 conguration ..........................................................................325
Congure the System for User Port Stacking (Option 230)....................................................................................327
Congure Secure DHCP............................................................................................................................................... 327
Option 82.................................................................................................................................................................. 327
DHCP Snooping.......................................................................................................................................................328
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