Avaya Troubleshooting Routers Anleitung zur Fehlerbehebung PDF herunterladen (Seite 7)

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Dropped Frames ......................................................................................................5-4

ATM VC . . . Failed Message .....................................................................................5-4

Upper-Layer Protocols Failing to Pass Packets ........................................................5-5

Troubleshooting an Ethernet Connection .......................................................................5-6

Troubleshooting an FDDI Connection ...........................................................................5-11

Troubleshooting a Frame Relay Connection .................................................................5-14

Log messages from Frame Relay Indicate Circuit Is Down ...................................5-14

Frame Relay Switch Keeps Marking the Circuit as Down ......................................5-15

Frame Relay Circuit Up, but Protocol Data Is Not Transmitting ..............................5-15

PVC Transmitting, but Not Receiving .....................................................................5-16

Frame Relay Conﬁgured with LMI Invokes an Xoff State .......................................5-16

Troubleshooting an MCT1 Connection .........................................................................5-17

Troubleshooting a Synchronous Connection ................................................................5-19

Checking the Address Format (Bay Networks Standard Only) ..............................5-21

Troubleshooting a Synchronous to X.21 Connection .............................................5-21

Reception Errors Incrementing or Reception Count Not Incrementing ..................5-21

Troubleshooting the Internal Clock Settings (Lab Environments Only) ..................5-23

Troubleshooting a Token Ring Connection ...................................................................5-24

Troubleshooting Other Data Link Protocols ..................................................................5-26

Chapter 6

Troubleshooting a Network Connection Problem

Troubleshooting AppleTalk ..............................................................................................6-2

Local Net Range Conﬂict Event Message ................................................................6-3

Zone . . . Conﬂict Event Message .............................................................................6-3

Static Conﬁguration Conﬂict Event Message ...........................................................6-4

Troubleshooting DLSw ....................................................................................................6-4

Troubleshooting IP ..........................................................................................................6-6

Troubleshooting Telnet, FTP, and TFTP ...................................................................6-8

Ping Does Not Work .................................................................................................6-9

Router Cannot Ping Another Local Device ......................................................6-10

Router Cannot Ping Endstation, but Can Ping Other Endstations on the Same

Segment ..........................................................................................................6-11

Endstation Cannot Ping the Remote Interface on the Router ..........................6-11

Endstation Can Ping Devices on the Same Segment, but Cannot Ping the Router 6-12

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Avaya Troubleshooting Routers Anleitung zur Fehlerbehebung Seite 7