Open Issues

The following two error messages gets generated brcm_rt_ip_mc_ipmc_install:2455 Failed (Invalid parameter:-4) This message is due to IPMC Group being used is not created, when RE tried to add this check indicates there is a parameter mis-match. brcm_rt_ip_mc_ipmc_install:2455 Failed (Internal error:-1) This message is due to Failure to read IPMC Table or any memory/register. PR1461339

In case of the access-side interfaces used as SP-style interfaces, when a new logical interface is added and if there is already a logical interface on the physical interface, there is 20--50 ms traffic drop on the existing logical interface. PR1367488

On QFX5100 and QFX5110 devices, vendor-id format maybe incorrect for network ports. This does not impact the ZTP functionality or service. The DHCP client config is coming from two places, i.e AIU script and vsdk sandbox. The DHCP client config coming from AIU script has the serial Id in vendor id where as the default configuration from sandbox does not have. PR1601504

On the QFX5100 line of switches, inserting or removing optics on a port might cause a Packet Forwarding Engine Manager CPU spike and an eventual microcode failure. PR1372041

VXLAN VNI (multicast learning) scaling on QFX5110 traffic issue is seen from VXLAN tunnel to Layer 2 interface. PR1462548

In the platform using INH (indirect next hop, such as Unilist) as route next hop type for multiple paths scenario (such as BGP PIC or ECMP), the session fast-reroute might be enabled in Packet Forwarding Engines (PFEs). When the version-id of session-id of INH is above 256, the PFE might not respond to session update, which might cause the session-id permanently to be stuck with the weight of 65535 in PFE. It might lead PFE to have a different view of Unilist against load-balance selectors. Then either the BGP PIC or the ECMP-FRR might not work properly and traffic might be dropped or silently discarded. PR1501817

When launching a guest Virtual Machine (VM) to run a third party application on Junos OS 15.1R1 and above, the guest VM might be shown as "UNAVAILABLE" even after successfully installing the third party application. This is due to duplicated device ID assigned to different disks. PR1529596

On QFX5110 Virtual Chassis, FPC may gets disconnected with 24000 DHCPv6 relay scaling, after the traffic is stopped. "pfe_listener_disconnect" error messages may be seen. PR1594748

Pim Vxlan not working on TD3 chipsets enabling VxLAN flexflow after release 21.3R1. Customers Pim Vxlan or data plane VXLAN can use the version 21.3R1. PR1597276

On all devices running Junos OS or Junos OS Evolved, where this is a high BGP scale with flapping route and the BGP Monitoring Protocol (BMP) collector/station is very slow, the rpd process might crash due to memory pressure. PR1635143

When MACSEC and VRRP are enabled on QFX5120 VC, MACSEC sessions are flapping at random times. Without VRRP this issue is not seen. PR1640031

On all QFX5100 Virtual Chassis platforms, after the reboot, Virtual Chassis port (VCP) ports might not establish a VCP connection and Cyclic Redundancy Check (CRC) errors are also observed. PR1646561

On QFX platform, v6 ifl stats are being derived from the underlying ifd stats unlike on PTX where they are hardware assisted. Hence, they are not very reliable. PR1653671

When the remote end server/system reboots, QFX5100 platform ports with SFP-T 1G inserted may go into a hung state and remain in that state even after the reboot is complete. This may affect traffic after the remote end system comes online and resumes traffic transmission. PR1665800

On QFX5110 platforms with more than one l2circuit configured, deactivating and activating the l2circuit configurations successively might cause traffic drop on one or more Layer 2 circuits. PR1666260

On QFX5100 platforms (both stand-alone and VC scenario) running Junos, occasionally during the normal operation of the device, PFE (Packet Forwarding Engine) can crash resulting in total loss of traffic. The PFE reboots itself following the crash. PR1679919

On QFX5000 series platforms, configuration-change/protocol flapping/port flapping in Ethernet Virtual private network (EVPN) Virtual Extensible LAN (VXLAN) can cause traffic loss (changes related to the underlay network). PR1688323

On QFX5100 Virtual Chassis (VC) and Virtual Chassis Fabric (VCF) platforms on upgrading Virtual Chassis Fabric (VCF) and toggling the interface, when FPC (Flexible PIC Concentrators) is disabled and rebooted, the member fails to join the virtual chassis and the interface remains disabled even after been enabled. PR1689499

The show chassis hardware command indicates duplicate entries for PSU and FAN tray after USB clean install or zeroize. PR1704106

as list_get_head function is called in multiple places in pfe we needed previous 3 functions on the stack which had called list_get_head so we could debug why 'list_get_head list has bad magic ' this error has occured. PR1705853

On QFX10000 devices, traffic going over unilist is dropped when unilist member goes from next-hop hold state to unicast or aggregate state. PR1713279

On QFX5000 devices, the output of the show forwarding-options enhanced-hash-key command does not indicate weather the ECMP Resilient Hashing is enabled or disabled. PR1725916

On all QFX platforms unexpected behavior of bandwidth based metric in IS-IS is seen since actual bandwidth is falling back to 0 bps when one of the member interface of AE (Aggregated Ethernet) bundle (interface-group) goes down. PR1718734

On QFX5100 platforms running QFX-5e images in Virtual Chassis setup, when Virtual Chassis Port (VCP) links are connected between PHY and PHYLESS ports, CRC alignment errors will be seen. As a result, there can be traffic loss on these links. PR1692102