G/C/B-Series 'show' command results in "Output will be truncated" errors

[FAQ_User]

Article ID: 13747

Products
G3-Series, firmware 6.42.05.0001 and lower
C5-Series, firmware 6.42.05.0001 and lower
C3-Series, firmware 6.42.05.0001 and lower
C2-Series, firmware 5.02.12.0006 and lower
B5-Series, firmware 6.42.05.0001 and lower
B3-Series, firmware 6.42.05.0001 and lower
B2-Series, firmware 4.02.12.0006 and lower

Changes
Entered a command which displays more than 1024 lines of output, including but not limited to;

code:

show rmon stats

; -or-

code:

show multiauth session

; -or-

code:

show port lacp port

<

port-string

>

code:

status detail

.

Symptoms
The system displays an incomplete set of output information, with added error messages:

code:

--More-- 

<

code:

space

>

code:

next page,

<

code:

cr

>

code:

one line,

<

code:

q

>

code:

quit

code:

Max number of lines in the scroll buffer reached. Output will be truncated.

code:

Max number of lines in the scroll buffer reached. Output will be truncated.

code:

Max number of lines in the scroll buffer reached. Output will be truncated.

code:

. . .

code:

Max number of lines in the scroll buffer reached. Output will be truncated.

code:

Max number of lines in the scroll buffer reached. Output will be truncated.

code:

Max number of lines in the scroll buffer reached. Output will be truncated.

Cause
This can occur when a non-default terminal length is set (e.g. '

code:

set length 23

') to limit the output of the terminal to x lines between pauses.
The 1024-line buffer used in this scenario is insufficient to store the generated command output.

Solution/Workaround
For the G-Series, upgrade to firmware 6.42.06.0008 or higher.
For the C5-Series, upgrade to firmware 6.42.06.0008 or higher.
For the C3-Series, upgrade to firmware 6.42.06.0008 or higher.
For the B5-Series, upgrade to firmware 6.42.06.0008 or higher.
For the B3-Series, upgrade to firmware 6.42.06.0008 or higher.
Release notes state, in the '

code:

Firmware Changes and Enhancements

' section:

code:

14996

code:

Resolved a CLI buffering issue which resulted in the following error message "Max number of lines in the scroll buffer reached. Output will be truncated". This was seen when using a non-default CLI screen length in a stacked environment.

For the C2-Series, upgrade to firmware 5.02.13.0003 or higher.
For the B2-Series, upgrade to firmware 4.02.13.0003 or higher.
Release notes state, in the '

code:

Firmware Changes and Enhancements

' section:

code:

15087

code:

Resolved a CLI issue whereby displaying output exceeding 1024 lines resulted in the following error "Max number of lines in the scroll buffer reached. Output will be truncated."

Pre-upgrade workaround:
Use a port-specific version of the '

code:

show...

' command to reduce the number of output lines;
-or-
issue the '

code:

set length 0

' command before reissuing the original '

code:

show...

' command.
The default length value of "

code:

0

" results in a continuing scroll until the output data is exhausted.