Concept Guide

Monitoring and Maintaining Interfaces....................................................................................................................... 445
Maintenance Using TDR......................................................................................................................................... 446
Non Dell-Qualied Transceivers................................................................................................................................... 447
Splitting 40G Ports without Reload.............................................................................................................................447
Splitting QSFP Ports to SFP+ Ports........................................................................................................................... 449
Converting a QSFP or QSFP+ Port to an SFP or SFP+ Port..................................................................................449
Important Points to Remember............................................................................................................................. 450
Example Scenarios.................................................................................................................................................. 450
Conguring wavelength for 10–Gigabit SFP+ optics.................................................................................................451
Link Dampening..............................................................................................................................................................452
Important Points to Remember............................................................................................................................. 452
Conguration Example of Link Dampening...........................................................................................................453
Enabling Link Dampening........................................................................................................................................455
Link Bundle Monitoring................................................................................................................................................. 456
Using Ethernet Pause Frames for Flow Control........................................................................................................ 457
Enabling Pause Frames........................................................................................................................................... 457
Congure the MTU Size on an Interface....................................................................................................................458
Port-Pipes.......................................................................................................................................................................459
Auto-Negotiation on Ethernet Interfaces...................................................................................................................459
Setting the speed to 10/100/1000 Mbps on SFP-1G-T transceiver..................................................................459
Setting the Speed of Ethernet Interfaces............................................................................................................459
Set Auto-Negotiation Options................................................................................................................................ 461
View Advanced Interface Information..........................................................................................................................461
Conguring the Interface Sampling Size.............................................................................................................. 462
Conguring the Trac Sampling Size Globally...........................................................................................................463
Dynamic Counters......................................................................................................................................................... 465
Clearing Interface Counters................................................................................................................................... 465
Discard Counters........................................................................................................................................................... 466
Display discard counters......................................................................................................................................... 466
23 Internet Protocol Security (IPSec).......................................................................................................... 468
Conguring IPSec .........................................................................................................................................................468
24 IPv4 Routing............................................................................................................................................ 470
IP Addresses....................................................................................................................................................................471
Implementation Information.....................................................................................................................................471
Conguration Tasks for IP Addresses.......................................................................................................................... 471
Assigning IP Addresses to an Interface........................................................................................................................471
Conguring Static Routes.............................................................................................................................................472
Congure Static Routes for the Management Interface.......................................................................................... 473
IPv4 Path MTU Discovery Overview...........................................................................................................................474
Packet handling during MTU mismatch................................................................................................................ 474
Using the Congured Source IP Address in ICMP Messages.................................................................................. 474
Conguring the ICMP Source Interface................................................................................................................474
Conguring the Duration to Establish a TCP Connection........................................................................................ 475
Enabling Directed Broadcast........................................................................................................................................ 475
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