Service Manual

Propagation of DCB Information.............................................................................................................................. 226
Auto-Detection and Manual Conguration of the DCBx Version.............................................................................. 226
Behavior of Tagged Packets.....................................................................................................................................226
Conguration Example for DSCP and PFC Priorities................................................................................................ 227
DCBx Example......................................................................................................................................................... 228
DCBx Prerequisites and Restrictions........................................................................................................................ 228
Conguring DCBx.................................................................................................................................................... 228
Verifying the DCB Conguration.................................................................................................................................... 232
Generation of PFC for a Priority for Untagged Packets.................................................................................................. 241
Operations on Untagged Packets....................................................................................................................................241
Performing PFC Using DSCP Bits Instead of 802.1p Bits................................................................................................242
PFC and ETS Conguration Examples............................................................................................................................242
Using PFC and ETS to Manage Data Center Trac....................................................................................................... 242
PFC and ETS Conguration Command Examples.................................................................................................... 244
Using PFC and ETS to Manage Converged Ethernet Trac.................................................................................... 244
Hierarchical Scheduling in ETS Output Policies........................................................................................................ 244
Priority-Based Flow Control Using Dynamic Buer Method...........................................................................................245
Pause and Resume of Trac....................................................................................................................................245
Buer Sizes for Lossless or PFC Packets.................................................................................................................245
Conguring the Dynamic Buer Method........................................................................................................................246
12 Dynamic Host Conguration Protocol (DHCP)...........................................................247
DHCP Packet Format and Options.................................................................................................................................247
Assign an IP Address using DHCP.................................................................................................................................. 249
Implementation Information............................................................................................................................................249
Congure the System to be a DHCP Server.................................................................................................................. 250
Conguring the Server for Automatic Address Allocation.........................................................................................250
Specifying a Default Gateway.................................................................................................................................. 252
Congure a Method of Hostname Resolution.......................................................................................................... 252
Using DNS for Address Resolution........................................................................................................................... 252
Using NetBIOS WINS for Address Resolution.......................................................................................................... 252
Creating Manual Binding Entries.............................................................................................................................. 252
Debugging the DHCP Server................................................................................................................................... 253
Using DHCP Clear Commands.................................................................................................................................253
Congure the System to be a DHCP Client....................................................................................................................253
Conguring the DHCP Client System.......................................................................................................................254
DHCP Client on a Management Interface................................................................................................................ 255
DHCP Client Operation with Other Features............................................................................................................256
Congure the System for User Port Stacking (Option 230)...........................................................................................256
Congure Secure DHCP.................................................................................................................................................257
Option 82................................................................................................................................................................. 257
DHCP Snooping....................................................................................................................................................... 257
Drop DHCP Packets on Snooped VLANs Only.........................................................................................................260
Dynamic ARP Inspection...........................................................................................................................................261
Conguring Dynamic ARP Inspection.......................................................................................................................262
Source Address Validation.............................................................................................................................................. 263
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