First published: Fri Jan 15 2021(Updated: )
In an EVPN/VXLAN scenario, if an IRB interface with a virtual gateway address (VGA) is configured on a PE, a traffic loop may occur upon receipt of specific IP multicast traffic. The traffic loop will cause interface traffic to increase abnormally, ultimately leading to a Denial of Service (DoS) in packet processing. The following command could be used to monitor the interface traffic: user@junos> monitor interface traffic Interface Link Input packets (pps) Output packets (pps) et-0/0/1 Up 6492089274364 (70994959) 6492089235319 (70994956) et-0/0/25 Up 343458103 (1) 156844 (0) ae0 Up 9132519197257 (70994959) 9132519139454 (70994956) This issue affects Juniper Networks Junos OS on QFX Series: all versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R2-S5, 18.4R3-S5; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3; 19.2 versions prior to 19.2R1-S5, 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S2, 20.2R2.
Credit: sirt@juniper.net
Affected Software | Affected Version | How to fix |
---|---|---|
Juniper JUNOS | =17.3 | |
Juniper JUNOS | =17.3-r1-s1 | |
Juniper JUNOS | =17.3-r2 | |
Juniper JUNOS | =17.3-r2-s1 | |
Juniper JUNOS | =17.3-r2-s2 | |
Juniper JUNOS | =17.3-r2-s3 | |
Juniper JUNOS | =17.3-r2-s4 | |
Juniper JUNOS | =17.3-r2-s5 | |
Juniper JUNOS | =17.3-r3 | |
Juniper JUNOS | =17.3-r3-s1 | |
Juniper JUNOS | =17.3-r3-s2 | |
Juniper JUNOS | =17.3-r3-s3 | |
Juniper JUNOS | =17.3-r3-s4 | |
Juniper JUNOS | =17.3-r3-s7 | |
Juniper JUNOS | =17.3-r3-s8 | |
Juniper JUNOS | =17.3-r3-s9 | |
Juniper JUNOS | =17.4 | |
Juniper JUNOS | =17.4-r1 | |
Juniper JUNOS | =17.4-r1-s1 | |
Juniper JUNOS | =17.4-r1-s2 | |
Juniper JUNOS | =17.4-r1-s4 | |
Juniper JUNOS | =17.4-r1-s5 | |
Juniper JUNOS | =17.4-r1-s6 | |
Juniper JUNOS | =17.4-r1-s7 | |
Juniper JUNOS | =17.4-r2 | |
Juniper JUNOS | =17.4-r2-s1 | |
Juniper JUNOS | =17.4-r2-s10 | |
Juniper JUNOS | =17.4-r2-s11 | |
Juniper JUNOS | =17.4-r2-s2 | |
Juniper JUNOS | =17.4-r2-s3 | |
Juniper JUNOS | =17.4-r2-s4 | |
Juniper JUNOS | =17.4-r2-s5 | |
Juniper JUNOS | =17.4-r2-s6 | |
Juniper JUNOS | =17.4-r2-s7 | |
Juniper JUNOS | =17.4-r2-s8 | |
Juniper JUNOS | =17.4-r2-s9 | |
Juniper JUNOS | =17.4-r3 | |
Juniper JUNOS | =17.4-r3-s1 | |
Juniper JUNOS | =17.4-r3-s2 | |
Juniper JUNOS | =18.1 | |
Juniper JUNOS | =18.1-r1 | |
Juniper JUNOS | =18.1-r2 | |
Juniper JUNOS | =18.1-r2-s1 | |
Juniper JUNOS | =18.1-r2-s2 | |
Juniper JUNOS | =18.1-r2-s4 | |
Juniper JUNOS | =18.1-r3 | |
Juniper JUNOS | =18.1-r3-s1 | |
Juniper JUNOS | =18.1-r3-s10 | |
Juniper JUNOS | =18.1-r3-s2 | |
Juniper JUNOS | =18.1-r3-s3 | |
Juniper JUNOS | =18.1-r3-s4 | |
Juniper JUNOS | =18.1-r3-s6 | |
Juniper JUNOS | =18.1-r3-s7 | |
Juniper JUNOS | =18.1-r3-s8 | |
Juniper JUNOS | =18.1-r3-s9 | |
Juniper JUNOS | =18.2 | |
Juniper JUNOS | =18.2-r1 | |
Juniper JUNOS | =18.2-r1 | |
Juniper JUNOS | =18.2-r1-s3 | |
Juniper JUNOS | =18.2-r1-s4 | |
Juniper JUNOS | =18.2-r1-s5 | |
Juniper JUNOS | =18.2-r2 | |
Juniper JUNOS | =18.2-r2-s1 | |
Juniper JUNOS | =18.2-r2-s2 | |
Juniper JUNOS | =18.2-r2-s3 | |
Juniper JUNOS | =18.2-r2-s4 | |
Juniper JUNOS | =18.2-r2-s5 | |
Juniper JUNOS | =18.2-r2-s6 | |
Juniper JUNOS | =18.2-r3 | |
Juniper JUNOS | =18.2-r3-s1 | |
Juniper JUNOS | =18.2-r3-s2 | |
Juniper JUNOS | =18.2-r3-s3 | |
Juniper JUNOS | =18.2-r3-s4 | |
Juniper JUNOS | =18.2-r3-s5 | |
Juniper JUNOS | =18.3 | |
Juniper JUNOS | =18.3-r1 | |
Juniper JUNOS | =18.3-r1-s1 | |
Juniper JUNOS | =18.3-r1-s2 | |
Juniper JUNOS | =18.3-r1-s3 | |
Juniper JUNOS | =18.3-r1-s5 | |
Juniper JUNOS | =18.3-r1-s6 | |
Juniper JUNOS | =18.3-r2 | |
Juniper JUNOS | =18.3-r2-s1 | |
Juniper JUNOS | =18.3-r2-s2 | |
Juniper JUNOS | =18.3-r2-s3 | |
Juniper JUNOS | =18.3-r2-s4 | |
Juniper JUNOS | =18.3-r3 | |
Juniper JUNOS | =18.3-r3-s1 | |
Juniper JUNOS | =18.3-r3-s2 | |
Juniper JUNOS | =18.3-r3-s3 | |
Juniper JUNOS | =18.4 | |
Juniper JUNOS | =18.4-r1 | |
Juniper JUNOS | =18.4-r1-s1 | |
Juniper JUNOS | =18.4-r1-s2 | |
Juniper JUNOS | =18.4-r1-s5 | |
Juniper JUNOS | =18.4-r1-s6 | |
Juniper JUNOS | =18.4-r2 | |
Juniper JUNOS | =18.4-r2-s1 | |
Juniper JUNOS | =18.4-r2-s2 | |
Juniper JUNOS | =18.4-r2-s3 | |
Juniper JUNOS | =18.4-r2-s4 | |
Juniper JUNOS | =18.4-r3 | |
Juniper JUNOS | =18.4-r3-s1 | |
Juniper JUNOS | =18.4-r3-s2 | |
Juniper JUNOS | =18.4-r3-s3 | |
Juniper JUNOS | =18.4-r3-s4 | |
Juniper JUNOS | =19.1 | |
Juniper JUNOS | =19.1-r1 | |
Juniper JUNOS | =19.1-r1-s1 | |
Juniper JUNOS | =19.1-r1-s2 | |
Juniper JUNOS | =19.1-r1-s3 | |
Juniper JUNOS | =19.1-r1-s4 | |
Juniper JUNOS | =19.1-r1-s5 | |
Juniper JUNOS | =19.1-r2 | |
Juniper JUNOS | =19.1-r2-s1 | |
Juniper JUNOS | =19.1-r3 | |
Juniper JUNOS | =19.1-r3-s1 | |
Juniper JUNOS | =19.1-r3-s2 | |
Juniper JUNOS | =19.2 | |
Juniper JUNOS | =19.2-r1 | |
Juniper JUNOS | =19.2-r1-s1 | |
Juniper JUNOS | =19.2-r1-s2 | |
Juniper JUNOS | =19.2-r1-s3 | |
Juniper JUNOS | =19.2-r1-s4 | |
Juniper JUNOS | =19.2-r2 | |
Juniper JUNOS | =19.2-r3 | |
Juniper JUNOS | =19.3 | |
Juniper JUNOS | =19.3-r1 | |
Juniper JUNOS | =19.3-r1-s1 | |
Juniper JUNOS | =19.3-r2 | |
Juniper JUNOS | =19.3-r2-s1 | |
Juniper JUNOS | =19.3-r2-s2 | |
Juniper JUNOS | =19.3-r2-s3 | |
Juniper JUNOS | =19.3-r2-s4 | |
Juniper JUNOS | =19.4-r1 | |
Juniper JUNOS | =19.4-r1-s1 | |
Juniper JUNOS | =19.4-r1-s2 | |
Juniper JUNOS | =19.4-r2 | |
Juniper JUNOS | =19.4-r2-s1 | |
Juniper JUNOS | =20.1-r1 | |
Juniper JUNOS | =20.1-r1-s1 | |
Juniper JUNOS | =20.1-r1-s2 | |
Juniper JUNOS | =20.1-r1-s3 | |
Juniper JUNOS | =20.2-r1 | |
Juniper JUNOS | =20.2-r1-s1 |
The following software releases have been updated to resolve this specific issue: Junos OS 17.3R3-S10, 17.4R2-S12, 17.4R3-S3, 18.1R3-S11, 18.2R3-S6, 18.3R3-S4, 18.4R2-S5, 18.4R3-S5, 19.1R1-S6, 19.1R2-S2, 19.1R3-S3, 19.2R1-S5, 19.2R3-S1, 19.3R2-S5, 19.3R3, 19.4R2-S2, 19.4R3, 20.1R2, 20.2R1-S2, 20.2R2, 20.3R1, and all subsequent releases.
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