Alert Type

SRN - Software Release Notification
Low/NotificationSoftware Release Notification
Low/NotificationSoftware Release Notification

Product Affected

ACX, PTX, and QFX Series running Junos Evolved Software

Alert Description

Junos Software Service Release version 21.2R2-S2-EVO 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

Solution

Junos Software service Release version 21.2R2-S2-EVO is now available.

21.2R2-S2-EVO - List of Fixed issues

PR Number Synopsis Category: PFE COS features on BT based platforms
1633850 evo-cda-bt core dump if "show cda qpoll" or get-state used while a PFE is offlined/faulted, then also after PFE restarted
Product-Group=evo 		On EVO PTX10001-36MR or PTX10008/-04/-16, using cli-pfe "show cda qpoll ..." or get-state while a PFE is Offlining or Off sets up evo-cda-bt to crash later, if those commands or get-state is used again when that PFE has restarted.
PR Number Synopsis Category: Express BT PFE L3 Features
1632385 P2MP LSP ping and traceroute from bud-node fails when the branch is on another PFE
Product-Group=evo 		On PTX10001-36MR or PTX10004/PTX10008/PTX10016 which uses line cards PTX10K-LC1202/JNP10K-LC1202, when Point-to-Multi-point (P2MP) label-switched path (LSP) ping is initiated on a bud-node, ping fails if the brach is on another PFE. LSP ping packets will always have IP TTL as 1 on a bud-node/PHP node hence ping fails when the branch interfaces are on different PFEs.
PR Number Synopsis Category: SNMP, mib2d issues
1635958 False traffic spikes seen SNMP graphs when ifHCOutOctets or ifHCInOctets are used .
Product-Group=evo 		False traffic spikes seen SNMP graphs when ifHCOutOctets or ifHCInOctets are used .
PR Number Synopsis Category: Multiprotocol Label Switching
1616841 Protected LSP goes down with strict hops and link protection configured
Product-Group=evo 		On all Junos and all EVO platforms, the sub-LSP of a Point-to-Multipoint Label Switched Path(P2MP LSP) with link-protection and having strict hops goes down when a protected link on more than one sub-LSP goes down simultaneously and TED(Traffic Engineering Database) notification or RSVP tunnel local repair message not received before the CSPF(Constrained Shortest Path First) computation. As a result, the sub-LSP fails and traffic drop is seen.
PR Number Synopsis Category: ZT/YT pfe firewall software
1627986 FPC might restart with syslog filter action configured
Product-Group=evo 		On EVO-based PTX platforms and all MX series platforms with MPC10+, configuring syslog as a filter action may cause the FPC to restart.
 

21.2R2-S2-EVO - List of Known issues

PR Number Synopsis Category: EVPN control plane issues
1639204 X-men Failed to forward some of the VXLAN encapsulated traffic to remote
Product-Group=evo 		For certain VXLAN encapsulated traffic streams, the X-men failed to perform L3 forward and cause traffic lost.
PR Number Synopsis Category: ZT/YTpfe bridging, learning, stp, oam, irb software
1638489 Interoperability issue between legacy line cards and MPC10E/11E may cause incorrect load balancing over aggregate ethernet links
Product-Group=evo 		On MX platforms, due to a software defect seen in interoperability scenarios on newer AFT-based MX cards (MPC10E and MPC11E), packets entering through legacy(non-AFT) card interfaces and exiting through AE interfaces via IRB may get incorrectly load balanced.
 

Modification History

First publication 2022-02-23