Users Guide
How Enhanced Transmission Selection is Implemented..................................................................................... 259
ETS Operation with DCBx......................................................................................................................................260
Hierarchical Scheduling in ETS Output Policies......................................................................................................... 260
DCBx Operation..............................................................................................................................................................261
DCBx Operation........................................................................................................................................................261
DCBx Port Roles.......................................................................................................................................................261
DCB Conguration Exchange................................................................................................................................ 262
Conguration Source Election................................................................................................................................263
Propagation of DCB Information............................................................................................................................263
Auto-Detection of the DCBx Version.................................................................................................................... 264
DCBx Example..........................................................................................................................................................264
DCBx Prerequisites and Restrictions.....................................................................................................................265
DCBx Error Messages.............................................................................................................................................266
Debugging DCBx on an Interface.......................................................................................................................... 266
Verifying the DCB Conguration................................................................................................................................. 266
QoS dot1p Trac Classication and Queue Assignment.......................................................................................... 275
Troubleshooting PFC, ETS, and DCBx Operation...................................................................................................... 275
15 Dynamic Host Conguration Protocol (DHCP)......................................................................................... 278
Supported Modes.......................................................................................................................................................... 278
Assigning an IP Address using DHCP.......................................................................................................................... 278
Debugging DHCP Client Operation............................................................................................................................. 280
DHCP Client.................................................................................................................................................................... 281
How DHCP Client is Implemented...............................................................................................................................282
DHCP Client on a Management Interface..................................................................................................................282
DHCP Client on a VLAN............................................................................................................................................... 283
DHCP Packet Format and Options............................................................................................................................. 283
Option 82........................................................................................................................................................................284
Releasing and Renewing DHCP-based IP Addresses................................................................................................285
Viewing DHCP Statistics and Lease Information.......................................................................................................285
DHCP Snooping.............................................................................................................................................................286
DHCP Snooping for a Multi-Tenant Host..............................................................................................................286
DHCP Snooping in a VLT Setup.............................................................................................................................287
Enabling DHCP Snooping........................................................................................................................................287
Enabling IPv6 DHCP Snooping...............................................................................................................................287
Adding a Static Entry in the Binding Table............................................................................................................287
Adding a Static IPV6 DHCP Snooping Binding Table.......................................................................................... 288
Clearing the Binding Table...................................................................................................................................... 288
Clearing the DHCP IPv6 Binding Table................................................................................................................. 288
Displaying the Contents of the Binding Table.......................................................................................................288
Displaying the Contents of the DHCPv6 Binding Table...................................................................................... 289
Debugging the IPv6 DHCP.....................................................................................................................................289
IPv6 DHCP Snooping MAC-Address Verication................................................................................................290
16 Equal Cost Multi-Path (ECMP).................................................................................................................291
ECMP for Flow-Based Anity......................................................................................................................................291
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