# "g_tcpdump -mcap" command does not merge traffic capture outputs

**Product**: Maestro HyperScale Firewall  
**Version**: R81.10 (EOS)  
**Last Modified**: 2023-11-23

## Symptoms

- The errors below appear when you save global tcpdump with Multi-Blade Traffic Capture (`g_tcpdump -mcap`):

`Copying captured packets from remote SGMs to local SGM  
  Merging capture files into [Filename]  
  error executing mcap: capture file [Filename] has bad file name format. expecting [base file name]_X_YY, where X is the chassis ID and YY is the blade ID`

- The outputs of the traffic capture are not merged:

`[filename]_1_1  
  [filename]_1_2  
  [filename]_1_3  
  [filename]_1_4  
  [filename]_2_1  
  [filename]_2_2  
  [filename]_2_3`

## Cause

The filename specified with the "-w" parameter contains a dot (.) or dots.

## Solution

This problem was fixed. The fix is included in:

- [Jumbo Hotfix Accumulator for R81.20](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/Default.htm) starting from Take 26  
- [Jumbo Hotfix Accumulator for R81.10](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.10/Default.htm) starting from Take 110  
- [Jumbo Hotfix Accumulator for R81](https://sc1.checkpoint.com/documents/Jumbo_HFA/R81/Default.htm) starting from Take 89

If you choose not to upgrade, as a **workaround**, remove the dot or dots (.) from the filename specified with the "-w" parameter.

#### NOTE

This solution has been verified for the specific scenario, described by the combination of Product, Version and Symptoms. It may not work in other scenarios.

## Article Properties

**Access Level**: General  
**Status**: Approved by TAC  
**Date Created**: 2023-05-27  
**Last Modified**: 2023-11-23