Avaya Troubleshooting Routers Instrukcja Naprawy Pobierz pdf (Strona 6)

Using Packet Capture ......................................................................................1-21

Using Inbound Telnet to Access the Technician Interface ................................1-21

Taking a Snapshot of Your Network ........................................................................1-22

Documenting Each Step ...............................................................................................1-23

Performing One Corrective Task at a Time ...................................................................1-24

Chapter 2

Determining the Scope of a Problem

Chapter 3

Troubleshooting an Operational Problem

Damaged Router ............................................................................................................3-2

Power Problem ...............................................................................................................3-2

Blown Fuse .....................................................................................................................3-2

LEDs Not Lit ...................................................................................................................3-3

Router Won’t Boot ..........................................................................................................3-3

Checking the Boot PROMs .............................................................................................3-6

Making Sure the Router Software Image Is Correct for the Router ................................3-6

Making Sure All Slots Use the Same Router Software Image and Conﬁguration File ...3-6

Verifying That the Router Software Images in Each Processor Match .....................3-7

Verifying That the Conﬁguration Files in Each Processor Match .............................3-9

Lost Password ..............................................................................................................3-10

No Space Left on Memory Card ...................................................................................3-11

Memory or Buffer Problem ...........................................................................................3-12

Bad Forward Checksum Errors ....................................................................................3-17

Finding the Slot That Sent a Bad Backplane-BOFL-Packet ...................................3-18

Finding the Slot That Sent a Bad Packet That Was Not a BOFL Packet ................3-19

Fault Message ..............................................................................................................3-20

Chapter 4

Troubleshooting a Physical Media Problem

Making Sure the Link Module Is Working .......................................................................4-1

Determining the Media-Speciﬁc State ............................................................................4-2

Troubleshooting the Cable Connection ...........................................................................4-4

Chapter 5

Troubleshooting a Data Link Connection Problem

Troubleshooting an ATM Connection ..............................................................................5-2

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Avaya Troubleshooting Routers Instrukcja Naprawy Strona 6