Support Support Downloads Knowledge Base Juniper Support Portal Community

Knowledge Base

Search our Knowledge Base sites to find answers to your questions.

Ask All Knowledge Base Sites All Knowledge Base Sites JunosE Defect (KA)Knowledge BaseSecurity AdvisoriesTechnical BulletinsTechnotes Sign in to display secure content and recently viewed articles

18.3R1-S1: Software Release Notification for Junos Software Service Release version 18.3R1-S1



Article ID: TSB17475 TECHNICAL_BULLETINS Last Updated: 29 Nov 2018Version: 1.0
Alert Type:
SRN - Software Release Notification
Product Affected:
Alert Description:
Junos Software Service Release version is now available for download from the Junos software download site
Download Junos Software Service Release:
  1. Go to Junos Platforms - Download Software page
  2. Input your product in the "Find a Product" search box
  3. From the Type/OS drop-down menu, select Junos SR
  4. From the Version drop-down menu, select your version
  5. Click the Software tab
  6. Select the Install Package as need and follow the prompts

Junos Software service Release version 18.3R1-S1 is now available.

The following are incremental changes in 18.3R1-S1.

PR Number Synopsis Description

The shutdown of the cascade port might lead to the invalidation of the MPC linecard

In Fusion scenario, on the MPC2E/3E NG HQoS or MPC5E 3D Q linecard, if the cascade port is down (e.g., disabled, deactivated), all the interfaces of the linecard might be unusable.


On PTX10001 and ACX6360 - 100G-LR4 optics and 100G-ER4 optics are not supported

PTX10001 and ACX6360 : 100G LR4 and100G ER4 optics are not yet supported. Please use 100G SR10 optics.


Image installation on SD fails with error " Unable to read reply from software add command to re1; error 1"

Upgrading satellite devices (SDs) with "upgrade-groups" option may fail if any of the SD already has that SNOS software version.


EDVT-GI-MIC2 : "Interfaces not coming up for bidirection module SFP-100BASE-BX10-U & SFP-100BASE-BX10-D"

SFP-100BASE-BX10-U & SFP-100BASE-BX10-D are not supported on 20x1Ge/2x10Ge MACsec MIC due to a Microsemi PHY limitation.


Traffic might get into blackhole when CoS configuration is changed on a PS interface

In CoS scenario, if PS interface uses RLT as PS anchor, all traffic might be dropped on PS interface when deactivating or activating rewrite rules.


vSRX3.0 AppQos Functionality

On vSRX3.0, when using the .vmdk image to install, the AppQos feature may have unpredictable behaviour and srxpfe might core.


SSH is not working if [edit system services ssh hostkey-algorithms] is set or in FIPS mode

When setting the [system services ssh hostkey-algorithm] hierarchy or in FIPS mode, ssh/scp stops working due to faulty entries being inserted into ssh_config.


Flows are getting exported before the expire of the configured active timeout value

The export of the Jflow records is seen at the collector before the expire of the configured active timeout value. This export result might not be the expected.


GMIC2: Input framing errors

In rare situations at heavy traffic loads, input frame check sequence counter may get incremented.


Regression Issue: IPv4 and IPv6 VIP Routes are not withdrawn after AE+VLAN with IRB FLAP

When an interface flapped, VIP routes are not withdrawn during the period of interface flaps, causing packets lost on the AE+VLAN interface.


QFX5K EVPN/VXLAN: Failed to forward the Ipv6 NS packet from remote VTEP to localhost

When clear IPv6 neighbors command is done on L3-GW box, IPv6 ND is not getting resolved on for hosts connected peer L2-GW box. This is because IPv6 NS packets coming on network interface over vtep on QFX5K acting as L2-GW is dropped and not forwarded to access network hosts. Workaround to overcome this issue is to configure no-arp-suppression on QFX5K L2-GW box.


MF classifier: Loss-priority "high" action result in all packets dropped.

Customers should avoid "loss-priority high" action in the firewall filters (MF classifiers).

Modification History:
First publication date 2018-11-29
Comment on this article > Affected Products Browse the Knowledge Base for more articles related to these product categories. Select a category to begin.

Getting Up and Running with Junos

Getting Up and Running with Junos Security Alerts and Vulnerabilities Product Alerts and Software Release Notices Problem Report (PR) Search Tool EOL Notices and Bulletins JTAC User Guide Customer Care User Guide Pathfinder SRX High Availability Configurator SRX VPN Configurator Training Courses and Videos End User Licence Agreement Global Search