Resolved Issues
Learn about the issues fixed in this release for QFX Series.
Class of Service (CoS)
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The uplink interface remains down for a longer duration due to VXLAN scaled configuration PR1631448
EVPN
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Few ARP/ND/MAC entries for Vlans are missing with MAC-VRF configuration PR1609322
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The MAC address might not be visible in the EVPN/VXLAN environment PR1645591
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On all Junos and Junos OS Evolved platforms configured with EVPN-VXLAN, if an Ethernet Segment Identifier (ESI) link towards a multihomed CE experiences a quick down->up->down transition on a leaf, a remote Ethernet VPN (EVPN) peer might continue to install the Virtual Extensible LAN (VXLAN) tunnel (vtep) towards the affected leaf or the failed device in its ESI next-hop, resulting in traffic drops on the leaf. PR1648368
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On all Junos and EVO platforms, Integrated routing and bridging (IRB) static entry might be missing in the mac-ip-table for MAC move allowed for local static IRB entry.PR1650202
General Routing
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The dcpfe might crash on QFX5k devices PR1588704
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During FRR, when more than one multi home interface is down, traffic may loop for QFX5110(Merus) PR1596589
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Error message "error: syntax error: request-package-validate" will be seen on device cli output during Non Stop Software Upgrade PR1596955
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QFX5200: Observed dcpfe core-dump while testing ISSU from 21.1R1.11 to 21.2R1.7 PR1600807
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Chassisd generates "Cannot read hw.chassis.startup_time value: m" every 5 seconds on qfx10008 and qfx10016 PR1603588
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The packet drop might be seen when packet size exceeds 9000 MTU PR1615447
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The BFD session might flap on the QFX5120-48YM platform PR1616692
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One-time interface flap might be seen on the QFX5120 platform PR1618891
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BGP session may not establish between loopback interfaces when routes are learnt through type5 EVPN routes PR1620642
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Host generated IPv4 traffic sent over IPv6 next-hop with IRB interface might get dropped PR1623262
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Interface on QFX52xx not coming up after swapping from 100G to 40G PR1623283
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PKID could crash and generate a core-file when there was limited memory available on the routing-engine PR1624613
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The third 802.1Q tag might not be pushed onto the stack in the Q-in-Q tunneling PR1626011
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Traffic loss might be observed due to Address Resolution Protocol (ARP) getting programmed as indirect next-hop by control plane for external routes distributed over IRB on QFX10k Junos platforms PR1627876
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DHCP inform ack might be sent with broadcast address when DHCP smart relay is used PR1628837
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Some ports (port 20 and above) on QFX5110-32Q VC may not come up after a device restart or PFE reboot PR1629231
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The interface on the peer device might remain up even after disabling the 10G interface on the Juniper device PR1629637
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Traffic might get dropped when "family ethernet-switching" is configured on the interface in Q-in-Q scenario PR1629680
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LACP timeout might be observed during high CPU utilization PR1630201
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QFX5130 as Border Leaf with L3 interface connectivity, traffic forwarding is not happening to Multihomed receiver connected to Border Leafs when the L3 interface goes down on DF side PR1631249
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Inner VLAN might be stripped off when input-native-vlan-push is disabled PR1631771
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The interface might remain in the "UP/UP" state even the interface is admin disabled PR1632440
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You may see a slow response or timeout on the CLI or SNMP with accessing to sxe-0/0/0 on QFX5120-48T-6c. PR1632620
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The FBF filtered VLAN traffic will not be passed properly to the forwarding routing instances over AE interfaces on QFX5K/EX4600/EX4650 platforms PR1633452
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The VCPs connected with the AOC cable might not come up after upgrading to 17.3 or later releases PR1633998
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An EVPN-VXLAN fabric consisting of QFX5000 devices experience high convergence time for few seconds during link down or node reboot events. PR1634415
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On EX4650-48Y and QFX5120-48Y switches when there is a link flap, the link or interface might take more than expected time to come-up; resulting in increased traffic loss. PR1634495
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If you configure chassis disk-partition, chassisd might crash. PR1635812
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Routes might be slow to install in the LPM tabl.e PR1635887
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You might observe a traffic drop when STP is configured in VxLAN environment. PR1636950
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The Packet Forwarding Engine might crash while removing the port from a VLAN. PR1637013
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Configuring L2PT on a transit switch in a Q-in-Q environment breaks L2PT for other S-VLANs. PR1637249
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MACsec traffic drop might be seen when a back-to-back graceful switchover is performed. PR1637822
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The interfaces might delay to come up after reboot or transceiver replacement. PR1638045
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Targeted broadcast or WOL feature might not work on the QFX5000 platforms. PR1638619
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MAC-move might be observed when dhcp-security is configured PR1639926
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MAC address of the hosts might get learned on incorrect VLAN which may lead to traffic loss PR1639938
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On QFX series base license is missing post upgrade to 20.3 and later releases PR1640123
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A missing release of memory after effective lifetime vulnerability in the kernel of Junos OS allows an unauthenticated network based attacker to cause a Denial of Service (DoS). Refer to https://kb.juniper.net/JSA69713 for more information. PR1642172
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ICMP TTL exceeded packets are not sent out of the switch PR1643457
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Packets are dropped in ingress QFX5K with EVPN-LAG multihoming due to VP-LAG programming issue PR1644152
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On Junos OS QFX5000 platforms, the LACP packet might get intercepted and the interface detached from LACP when configuring VLAN tagging in the EVPN-VXLAN scenario. PR1645929
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Vxlan Tunnel termination due to change in config PR1646489
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The firewall might drop inbound packets if the filter is configured under IRB interface PR1646740
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OSPF control packets may get dropped due to the "flow check" function in the interoperability case PR1648272
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On QFX10000 platforms with EVPN-VXLAN is deployed, differences in the unicast and multicast packets between IS-IS hello packets and Connectionless Network Protocol (CLNP) ping packets might be observed. The packet might get egressed out, but the Logical Link Control (LLC) header data is missed. A header needs to be added for all LLC packets, so the peer node cannot recognize these packets without the header, and it simply discards the CLNP packet.PR1648078
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In EVPN-VxLAN environment, non-VxLAN traffic might be dropped if VxLAN and non-VxLAN traffic share the same ECMP next-hop. PR1649841
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L2PT on a transit switches like EX4600 and QFX5100 Series in a Q-in-Q environment breaks L2PT for other S-VLANs if uplink is aggregated Ethernet interface.PR1650416
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The local-bias might stop working after the device is rebooted PR1651151
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On all Junos OS platforms, with the L2 circuit configuration when the ether type in the incoming packet is 0x88FC is not added to the known ether type list in ASIC for which traffic might get corrupted. PR1651703
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On all QFX5120 and EX4650 Junos OS platforms, when priority bits (P-bits) in C-tag are copied to S-tag in the switch, and then the C-tag is reset to 0. PR1652976
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On all QFX10002-36Q, QFX10002-72Q, QFX10008, and QFX10016 platforms, when Service Provider (SP) style is configured with IRB and native-vlan leads to ARP failure. PR1654215
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LACP sent IN SYNC to server facing interface when core-isolation is in effect. PR1654459
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The MAC limiting port security feature might not work. PR1659873
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On Junos OS QFX5200-32C-32Q platform, on disabling and then enabling interfaces, the Fast Ethernet channel (FEC) might mismatch and the FEC details link might not come up.PR1657534
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Valid software licenses might not be in sync between members in the Virtual chassis. PR1658913
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On all Junos OS platforms, the Virtual Extensible LAN (VxLAN) port goes to Spanning Tree Protocol (STP) BLK state when the port is down and takes a while to go back to the FWD state when the link is up. Traffic loss is seen in this case. PR1659533
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QFX Series line of devices are using IPv4 ID field for a OSPF flow check function, but it is violating RFC6864. PR1660369
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BUM traffic received on CE interface will loopback to ingress interface after removing EVPN VXLAN FRR configuration (reroute-address). PR1662515
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L2 multicast traffic loss occurs on QFX5120-48T Virtual chassis platform on Junos OS Release 22.2R1.9. PR1663102
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Adaptive [load balancing] statistics are not updated under
show interfaces aeX extensive
on QFX10000 platform.PR1663881
Interfaces and Chassis
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show vrrp extensive
doesnot show the next logical interface "Interface VRRP PDU statistics". PR1637735 -
Traffic loss might be seen for the mac addresses learned on the ICL interface. PR1639713
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On all Junos platforms, there might be an issue with ARP learning between ICL interface and local MC-AE interfaces when an MC-AE device is misconfigured and the configuration is rolledback using
rollback
command. This issue might result in packet drop.PR1648271 -
In all Junos platforms, IPv6 neighbor might be learned over the local MC-AE (multi-chassis aggregate ethernet) interface which is in the down state instead of the inter chassis link (ICL).PR1658742
Layer 2 Ethernet Services
MPLS
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IS-IS BFD sessions might take a long time to recover when the interface flap. PR1593959
Network Management and Monitoring
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VTEP might report a high speed on the sub-interface, causing SNMP alarms. PR1651774
Platform and Infrastructure
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The packet drop might be seen on FPC on Trio based platforms. PR1631313
Routing Protocols
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PIM accept-remote-source knob config removal. PR1593283
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The BFD session might be down when multiple addresses of same subnet are configured. PR1635700
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Ipv6 Inline BFD sessions are down when neighbor is not resolved. PR1650677
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On all Junos and Junos Evolved platforms, when a policy with policy action "community set/add/delete" is configured and the same policy is imported under Routing Information Protocol (RIP) protocol, community configuration might not work. PR1660424
User Interface and Configuration
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Unable to access configure exclusive mode after mgd process gets killed. PR1641025