Deployment Guide

Table Of Contents
Configuring ETS in a DCB Map..............................................................................................................................268
Hierarchical Scheduling in ETS Output Policies...................................................................................................... 269
Using ETS to Manage Converged Ethernet Traffic................................................................................................270
Applying DCB Policies in a Switch Stack...................................................................................................................270
Configure a DCBx Operation........................................................................................................................................270
DCBx Operation.........................................................................................................................................................270
DCBx Port Roles.........................................................................................................................................................271
DCB Configuration Exchange.................................................................................................................................272
Configuration Source Election............................................................................................................................... 272
Propagation of DCB Information........................................................................................................................... 273
Auto-Detection and Manual Configuration of the DCBx Version..................................................................273
DCBx Example............................................................................................................................................................273
DCBx Prerequisites and Restrictions....................................................................................................................274
Configuring DCBx......................................................................................................................................................274
Verifying the DCB Configuration................................................................................................................................. 277
QoS dot1p Traffic Classification and Queue Assignment......................................................................................285
Configuring the Dynamic Buffer Method..................................................................................................................285
Sample DCB Configuration...........................................................................................................................................286
Chapter 13: Dynamic Host Configuration Protocol (DHCP)........................................................ 288
DHCP Packet Format and Options.............................................................................................................................288
Assign an IP Address using DHCP.............................................................................................................................. 290
Implementation Information......................................................................................................................................... 290
Configure the System to be a DHCP Server............................................................................................................ 291
Configuring the Server for Automatic Address Allocation...............................................................................291
Specifying a Default Gateway................................................................................................................................292
Configure a Method of Hostname Resolution....................................................................................................293
Using DNS for Address Resolution....................................................................................................................... 293
Using NetBIOS WINS for Address Resolution....................................................................................................293
Creating Manual Binding Entries........................................................................................................................... 293
Debugging the DHCP Server................................................................................................................................. 294
Using DHCP Clear Commands...............................................................................................................................294
Configure the System to be a DHCP Client............................................................................................................. 294
Configuring the DHCP Client System.................................................................................................................. 294
DHCP Client on a Management Interface...........................................................................................................296
DHCP Client Operation with Other Features.....................................................................................................296
DHCP Relay When DHCP Server and Client are in Different VRFs................................................................... 297
Configuring Route Leaking between VRFs on DHCP Relay Agent............................................................... 297
Non-default VRF configuration for DHCPv6 helper address...............................................................................298
Configuring DHCP relay source interface.................................................................................................................298
Global DHCP relay source IPv4 or IPv6 configuration ....................................................................................299
Interface level DHCP relay source IPv4 or IPv6 configuration .....................................................................299
Configure the System for User Port Stacking (Option 230)............................................................................... 300
Configure Secure DHCP............................................................................................................................................... 300
Option 82 (DHCPv4 relay options)....................................................................................................................... 301
DHCPv6 relay agent options...................................................................................................................................301
DHCP Snooping.........................................................................................................................................................302
Drop DHCP Packets on Snooped VLANs Only.................................................................................................. 306
Dynamic ARP Inspection......................................................................................................................................... 307
Configuring Dynamic ARP Inspection...................................................................................................................307
Contents
9