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Resolved Issues

This section lists the issues fixed in the Junos OS main release and the maintenance releases.

For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.

Resolved Issues: 16.1R1

Forwarding and Sampling

  • If bandwidth-percent based policer is applied on aggregated Ethernet (AE) bundle without the "shared-bandwidth-policer" configuration statement, traffic will hit policer even if the traffic is not exceeding the configured bandwidth. As a workaround, configure the "shared-bandwidth-policer" configuration statement under the policer. PR1125071
  • SRRD daemon doesn't delete routes when the DELETE is received from RPD in few configuration cases. This results in build-up of memory in SRRD daemon and once SRRD reaches the limit, it crashes and restarts itself. This happens only when none of the SRRD clients (FPCs in Inline JFlow case and PICs in PIC based sampling) are interested in one or more families. Say, only IPv4 family is configured in all the clients and, IPv6 and MPLS families are not configured for sampling in any of the clients. PR1180158

General Routing

  • On MX Series routers with MPC3E, MPC4E, MPC5E, MPC6E, Junos OS does not support short (sub-second) interface hold-time down configuration. A hidden configuartion statement is introduced to ignore DFE tuning state during hold-down timer period. This configuration statement allows sub-second hold-down timer on MPC3E, MPC4E, MPC5E, MPC6E. set interfaces <intf name> hold-time up <U ms> down <D ms> alternative. The configuration statement does not work/support 'MPC5E 3D Q 2CGE+4XGE' and 'MIC6 2X100GE CFP2 OTN', and we recommend configuring hold-time down to be more than 3 seconds for these two cards. PR1012365
  • On MX Series routers containing multiple Packet Forwarding Engines such as MX240/MX480/MX960/MX2010/MX2020, with MPC3E/MPC4E/MPC5E/MPC6E cards, if the routers have GRE decap, then certain packet sizes coming via these line cards, at very high rate can cause these line cards to exhibit a lockup, and one or more of their Packet Forwarding Engines corrupt traffic toward the router fabric. PR1117665
  • On dual Routing Engine MX Series platforms, the "xe" interfaces of any of the line cards below may flap during in-service software upgrade (ISSU) due to missing support. The flapping may not happen every time and the probability of occurrence would increase if more number of SFP+ (e.g., SFP+-10G-SR) are connected on the FPC. The affected line cards are: * MIC3-3D-10XGE-SFPP * MPC4E-3D-32XGE-SFPP, MPC4E-3D-2CGE-8XGE * MPC5E-40G10G, MPC5EQ-40G10G * MX2K-MIC6-24XE, MX2K-MIC6-24XE-OTN. PR1118379
  • On MX Series platforms, the MS-MPC crash might occur. The exact trigger of the issue is unknown; normally, this issue might happen over long hours (e.g., within a week) of traffic run (e.g., running HTTP/HTTPS/DNS/RTSP/TFP/FTP traffic profile). PR1124466
  • In a IGMP oversubscriber environment with the configuration statement "remove-when-no-subscribers" configured, after performing graceful Routing Engine switchover, subscribers with multicast joins cannot re-login when the subscriber logs out before it sends an IGMP leave in the new master. PR1136646
  • On Junos OS Release 15.1 and above, on MS-MPC or MS-PIC, OSPF adjacency may fail to establish when there is no static route pointing to service PIC. PR1164517

Interfaces and Chassis

  • Chap Local-name defaults to 8 characters. Should be 32. PR996760


  • When OSPF LFA is enabled and there is an available backup path, after clearing the LDP session to the primary path or backup path, in a very rare condition, the LDP session on this router might flap multiple times. PR1119700

Platform and Infrastructure

  • When a common scheduler is shared by multiple scheduler maps which applies to different VLANs of an aggregated Ethernet (AE) interface, if the knob "member-link-scheduler" is configured at "scale", for some VLANs, the scheduler parameters are wrongly scaled among AE member links. As a workaround, we should explicitly configure different schedulers under the scheduler maps. PR1107013

Related Documentation

Modified: 2017-07-24