Administrator Guide

QoS dot1p Trac Classication and Queue Assignment..........................................................................................284
Conguring the Dynamic Buer Method................................................................................................................... 285
Sample DCB Conguration...........................................................................................................................................286
PFC and ETS Conguration Command Examples...............................................................................................288
13 Dynamic Host Conguration Protocol (DHCP).........................................................................................289
DHCP Packet Format and Options............................................................................................................................. 289
Assign an IP Address using DHCP................................................................................................................................291
Implementation Information..........................................................................................................................................292
Congure the System to be a DHCP Server..............................................................................................................292
Conguring the Server for Automatic Address Allocation..................................................................................293
Specifying a Default Gateway................................................................................................................................ 294
Congure a Method of Hostname Resolution..................................................................................................... 294
Using DNS for Address Resolution........................................................................................................................294
Using NetBIOS WINS for Address Resolution..................................................................................................... 295
Creating Manual Binding Entries............................................................................................................................295
Debugging the DHCP Server.................................................................................................................................295
Using DHCP Clear Commands.............................................................................................................................. 296
Congure the System to be a Relay Agent................................................................................................................ 296
Congure the System to be a DHCP Client............................................................................................................... 298
Conguring the DHCP Client System...................................................................................................................298
DHCP Client on a Management Interface............................................................................................................299
DHCP Client Operation with Other Features.......................................................................................................300
Congure the System for User Port Stacking (Option 230).................................................................................... 301
Congure Secure DHCP................................................................................................................................................301
Option 82...................................................................................................................................................................301
DHCP Snooping.......................................................................................................................................................302
Drop DHCP Packets on Snooped VLANs Only....................................................................................................305
Dynamic ARP Inspection........................................................................................................................................ 306
Conguring Dynamic ARP Inspection................................................................................................................... 307
Source Address Validation............................................................................................................................................ 308
Enabling IP Source Address Validation..................................................................................................................308
DHCP MAC Source Address Validation................................................................................................................ 309
Enabling IP+MAC Source Address Validation.......................................................................................................309
Viewing the Number of SAV Dropped Packets.................................................................................................... 310
Clearing the Number of SAV Dropped Packets....................................................................................................310
14 Equal Cost Multi-Path (ECMP)................................................................................................................. 311
ECMP for Flow-Based Anity.......................................................................................................................................311
Conguring the Hash Algorithm..............................................................................................................................311
Enabling Deterministic ECMP Next Hop................................................................................................................311
Conguring the Hash Algorithm Seed................................................................................................................... 312
Link Bundle Monitoring.................................................................................................................................................. 312
Managing ECMP Group Paths................................................................................................................................313
Creating an ECMP Group Bundle...........................................................................................................................313
Modifying the ECMP Group Threshold................................................................................................................. 313
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