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AI296 Version 9.8x User’s Guide
TID Multiplexing: TID Multiplexing Troubleshooting
7-15
TID Multiplexing Troubleshooting
If an OSS is not getting a response from an NE, it can send a TL1 retrieve header
command (
RTRV-HDR) to determine if the problem is with the NE or with AI296. The
parent connection on AI296 responds to
RTRV-HDR commands that have the same TID
as the one configured for the card.
Tip: For more information regarding TL1 commands, responses, and formats, refer
to the Belcore document GR-833-CORE.
RTRV-HDR
This command is used primarily as an aliveness check.
Format
RTRV-HDR:[
tid
]::
ctag
;
Parameters
Normal Response Format
This example displays the format of the response that appears when RTRV-HDR is
successfully executed:
Table 7-1
describes each of the items in the above response format.
tid
Defines the TID for AI296. Note that the TID and SID are the same.
ctag
Defines the correlation tag used to correlate responses to input commands.
Each input command has a unique
ctag
. Maximum length is 6 characters.
Responses include the identical
ctag
.
<cr><lf><lf>
<sp><sp><sp><SID><sp><YY-MM-DD><sp><HH:MM:SS><cr><lf>
M<sp><sp><ctag><sp>COMPLD<cr><lf>;
Table 7-1 RTRV-HDR Response Format Description
Response Item Description
cr Specifies a carriage return.
lf Specifies a line feed.
sp Specifies a space.
SID Specifies a system identifier (system ID).