Junos OS: MX Series: Executing CLI command repetitively may cause the system to run out of disk space

Summary

When a MX Series is configured as a Broadband Network Gateway (BNG) based on Layer 2 Tunneling Protocol (L2TP), executing certain CLI command may cause the system to run out of disk space, excessive disk usage may cause other complications. An administrator can use the following CLI command to monitor the available disk space: user@device> show system storage Filesystem Size Used Avail Capacity Mounted on /dev/gpt/junos 19G 18G 147M 99% /.mount <<<<< running out of space tmpfs 21G 16K 21G 0% /.mount/tmp tmpfs 5.3G 1.7M 5.3G 0% /.mount/mfs This issue affects Juniper Networks Junos OS on MX Series: 17.3R1 and later versions prior to 17.4R3-S5, 18.1 versions prior to 18.1R3-S13, 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S7; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R2-S4, 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R1-S1, 20.4R2; This issue does not affect Juniper Networks Junos OS versions prior to 17.3R1.

Timeline

1. Apr 22, 2021, 7:37 PM UTCCVE published
2. Sep 16, 2024, 11:46 PM UTCRecord last updated

Affected versions

• Juniper Networks Junos OS

  From 17.3R1; From 17.4 · fixed in 17.4R3-S5; From 18.1 · fixed in 18.1R3-S13; From 18.2 · fixed in 18.2R3-S7; From 18.3 · fixed in 18.3R3-S4; From 18.4 · fixed in 18.4R3-S7; From 19.1 · fixed in 19.1R3-S4; From 19.3 · fixed in 19.3R3-S2; From 20.1 · fixed in 20.1R3; From 20.3 · fixed in 20.3R2

• Juniper Networks Junos OS

  Version range not reported

References 1