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Troubleshooting a Data Link Connection Problem

5-5

4. Match the error code in the message to the error code column in

Table 5-

1, and perform the associated instructions.

Upper-Layer Protocols Failing to Pass Packets

If the upper-layer protocols are failing to pass packets to ATM, do the following:

1. Find the message indicating that Data Path created a gate for the virtual

circuit.

The message looks like this:

# 316: mm/dd/yy 14:57:42.417 DEBUG SLOT 3 DP Code: 23

Adding VC gate w/GH 0x627e to cct 3

The abbreviation “w/GH” stands for “with gate handle.” A gate handle is the

logical address of a process.

2. Check the subsequent log messages to make sure that the operating

system did not subsequently kill this gate.

Table 5-1. Error Codes in the “ATM VC mod failed” Log Message

Error Code Meaning Instructions

ATM_ERR_BAD_VC The driver is already using

the VPI/VCI (Virtual Path

Identiﬁer/Virtual Channel

Identiﬁer).

Use a different channel.

ATM_ERR_NO_RESOURC

The bandwidth is insufﬁcient

to satisfy the request.

Lower the cell rates.

ATM_ERR_NO_VC_AVAIL The maximum no. of VCs are

in already in use.

Increase the maximum

no. of VCs.

ATM_ERR_COP_ERR The coprocessor returned an

error.

Document the error and

call the Bay Networks

Technical Response

Center.

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Avaya Troubleshooting Routers Instrukcja Naprawy Strona 83