Open Issues
Learn about open issues in this release for PTX Series routers.
For the most complete and latest information about known Junos OS Evolved defects, use the Juniper Networks online Junos Problem Report Search application.
Class of Service (CoS)
-
Platform dependency-state error is seen on cosd.PR1649388
-
show class-of-service interface
might not show the classifier bind info on a physical interface with only inet or inet6 (without family MPLS or not with any rewrite rules). Show issue, classifier are still present and functional. No impact to traffic. PR1652342
General Routing
-
Support
switchover-on-routing-crash
configuration statement during abnormal termination of rpd. PR1561059 -
Changing
decap-only
tunnel destination address configuration after tunnel is up might not work and end up using previously configured tunnel destination address for decapsulaton. Once system enters this state any further configuration changes to tunnel configuration are not handled. PR1575724 -
Some of the frequencies shall fail performance for PTP-PTP and PTP-1PPS. PR1624478
-
[timing] [ptp] PTX10008 SynE-PTP & SyncE-1pps noise transfer test : Few input test frequencies are expected to fail. PR1624502
-
PTX10008 FPC: Junos OS Evolved: JNP10K-LC1201 frequently generates zephyr_clock_get_tod_ext_sync_sample(xxx): READ BT-X tod_sec: xxxxxxxxxx, tod_ns: xxxxxxxxx message. PR1635771
-
An improper input validation vulnerability in the Packet Forwarding Engine of Juniper Networks Junos OS Evolved allows an adjacent attacker to cause a Packet Forwarding Engine crash and thereby a Denial of Service (DoS). An FPC crashes and reboots after receiving a specific transit IPv6 packet over MPLS. Continued receipt of this packet creates a sustained Denial of Service (DoS) condition. Refer to https://kb.juniper.net/JSA69718for more information.PR1642721
-
PTX10003 load balance
v4_dscp
andv6_dscp
is enabled by default. This default behavior might cause traffic loss or out of order or retransmission to some application.PR1665131 -
Sometimes BGP and RSVP sessions remain down after quick arpd process disable and enable. Whenever customer encounters such scenarios, system can recover from erroneous state by executing
restart routing gracefully
in CLI.PR1665362 -
On PTX10008 Junos OS Evolved, STS(Status) LED on backup RCB goes off and never turns on when backup Routing Engine is rebooted.PR1681609
-
On Junos OS Evolved PTX Series platforms, system reboot can be seen with certain conditions. When there is a large-scale firewall filter with scaled prefix (greater than 8000 prefixes) for IPv4 and IPv6 using the
apply-path
configuration statement which is referenced by the import-policy and there is an event such as adding another destination IP in the firewall filter which leads to change in the firewall filter processing. This results in a crash of the evo-aftamnd process which manages all Packet Forwarding Engines and eventually the system reboots. The process crash is triggered by the high-memory utilization of the Alpha-KHT (Kernel Hash Table) which is used for the firewall filter processing in the NPU (Network Processing Unit) of the Packet Forwarding Engine. The aftmand crash can be seen by the commandshow system core-dumps
and the memory utilization can be seen by the commandshow npu memory info | match alpha
PR1682898.
Infrastructure
-
On all Junos OS Evolved platforms, near-end port is not within RFC or IANA standards as ephemeral or dynamic port range has been modified. PR1602717
Interfaces and Chassis
-
The memory usage of the rpd process on the backup Routing Engine might increase indefinitely due to leak in krt_as_path_t.PR1614763
-
On Junos OS Evolved platforms during lacpd process restart, child physical interface indexes from the port options physical interface based data which gets stored in kernel by lacpd, might not get reused due to old indexes that are not freed. When this occurs, new indexes might be generated repeatedly which could cause the port numbers exhaustion problem in aggregated Ethernet interface bundle.PR1647145
Juniper Extension Toolkit (JET)
-
In Junos OS Evolved, there are two different gRPC Python files for each JAPI file. The names of the files are pb2_grpc.py and pb2.py. The stub creation functions are present in pb2_grpc.py. PR1580789
-
Until Junos OS Evolved 21.3 mgd is 32-bit binary. libsi can only be linked with 64-bit binaries. To access data or WAN ports in Junos OS Evolved we need libsi to be linked with the binary. By default the shell on the Junos OS Evolved device includes libsi, but is not available to CLI commands as CLI makes mgd invoke cscript to run a Python script through CLI. PR1603437
Network Management and Monitoring
-
When
maximum-password-length
is configured and the user tries to configure password whose length exceeds configuredmaximum-password-length
, error is thrown, along with error <ok/> tag is also emitted. (Ideally <ok/> tag should not be emitted in an error scenario.) The configuration does not get committed. PR1585855 -
The mgd can crash when an invalid value is configured for identityref type leafs/leaf-lists while configuring openconfig or any other third-party YANG, problem happens with json and xml loads. PR1615773
Routing Protocols
-
On all Junos OS Evolved platforms, when configuring the network instance for openconfig, an error might be observed while executing a commit if the configured network instance type is default_instance but the instance name is not default.PR1644421
User Interface and Configuration
-
When evo-cda-bt is killed, FPC is restarted. The agentd crash might be due to ungraceful FPC restarts. This issue is not seen in a normal working scenario and is seen only upon ungraceful FPC restarts. Issue is seen when an important application is brought down and due to which FPC also goes down. Since FPC goes down there might be traffic loss.PR1655441
-
The system might ask for your password when you try to save the configuration file.PR1665008
-
Configd-streamer generates core files during commit of wild-carded groups related configuration. The core file is only seen with the wild-carded configuration which is used in the reported fusion test case.PR1674890