PTX and QFX series running Junos Evolved

Junos Software Service Release version 20.1R2-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

Junos Software service Release version 20.1R2-S2-EVO is now available.

20.1R2-S2-EVO - List of Fixed issues

PR Number	Synopsis	Category: PFE SW evo-pfemand,packet-io on BRCM platforms running EVO
1499009	QFX5220 does not support the following matches which were supported on QFX5200: first-fragment, tcp-established, Is-fragment, and Hop-limit. Product-Group=evo	QFX5220 does not support the matches that were supported on QFX5200: ? first-fragment ? tcp-established ? Is-fragment ? Hop-limit
PR Number	Synopsis	Category: Issues related to evo operations - libevo infra, typeinfo ..
1519427	large number of publish-deleted hwdre anomalies are dumped after 2nd iteration of the switchover from re1 (master) to re0. Product-Group=evo	large number of publish-deleted hwdre anomalies are dumped after 2nd iteration of the switchover from re1 (master) to re0.
PR Number	Synopsis	Category: Lacp related problems and issues.
1518542	The AE interface might flap after performing GRES on Junos EVO systems Product-Group=evo	On all Junos EVO systems, if micro BFD (Bidirectional Forwarding Detection) is configured on the AE (Aggregate Ethernet) interface, the AE interface might flap after performing GRES (Graceful Routing Engine Switchover). Traffic loss might be seen during the interface flap.
PR Number	Synopsis	Category: EVO RPD agent PRs
1527399	EVO:Grid: Tracking PR for Rpd-agent memory Product-Group=evo	rpd-agent daemon has a minor memory leak when it receives certain states.
PR Number	Synopsis	Category: Express PFE CoS Features
1521281	[cos] [scheduler] EVO SCAPA: The "show interfaces voq < intf/ae> non-zero" command is not working as expected / displays incorrect output Product-Group=evo	The "show interfaces voq < intf/ae> non-zero" command output does not work as expected. "Non-zero" filter will correctly apply only when the wred-drops values are non-zero.
PR Number	Synopsis	Category: Path computation client daemon
1508412	[northstar_pccd] [tag_ero] EVO-Brackla :: change of ero on branch lsp,sometimes causing issues Product-Group=evo	When the ERO of a particular branch is updated and the update goes to PCC just for this branch then the issue will be seen.
PR Number	Synopsis	Category: PTX10K platform specific fabric PRs
1512272	SIB <> FPC Link Errors seen prior to switchover do not get cleared when switchover is followed by SIB restart. Product-Group=evo	SIB <> FPC Link Errors seen prior to switchover do not get cleared when switchover is followed by SIB restart.
PR Number	Synopsis	Category: PTX10K specific platform PRs
1527790	Hwdre cored when trying to take faulty sib to offline state Product-Group=evo	Application hwdre may core and restart when trying to take faulty sib to offline state.

 

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20.1R2-S2-EVO - List of Known issues

PR Number	Synopsis	Category: PFE SW evo-pfemand,packet-io on BRCM platforms running EVO
1513109	servicability scheduler on LAG with 2 member links doesn't work Product-Group=evo	QFX running Junos Evolved's "scheduler" on LAG interfaces with 2 member links does not work properly
1521531	Scheduling variance will be seen when queue 3 & 4 congested on QFX5220 Product-Group=evo	QFX5220 - Class of Service - Scheduling transmit rate & shaping rate variance will be seen on QFX5220 when Queue 3 & Queue 4 congested along with other queues.
PR Number	Synopsis	Category: management ethernet related issues - mgmt-ethd daemon
1458228	The aggregated Ethernet LACP Distributed Mode - "show ppm adjacencies" does not show FPC slot number in Distribution address Product-Group=evo	"show ppm adjacencies" in Junos Evolved show an internal IP address instead of FPC slot number in the Distribution address
PR Number	Synopsis	Category: System Management High availability
1519364	GRES: show system switchover is not showing the correct state Product-Group=evo	There is a delay enforced between back to back switchover. This is 360 seconds unless overridden by platform specific values. So, if the last switchover happened within the last 360 seconds, then it will give this error: "Not ready for mastership switch, try after x seconds?. The "show system switchover" CLI output might show "Switchover Status: Ready". But this field indicates the ready status of all applications on backup RE. This does not consider the back-to-back switchover delay.
PR Number	Synopsis	Category: mgd, ddl, odl infra issues
1511303	< data> tag not found in xml output generated by rli16039combination_filter_sd.xml. Product-Group=evo	Eventd reads the hostname from /etc/hostname file and updates the same in all syslog files. During bootup time /etc/hostname were not updated by mgd and eventd reads the default hostname. The issue got fixed in PR 1511303 by mgd folks in recent builds. This doesn't impact the functionality and this is a high risk to backport the change(AT#82, AT#87, and AT#90 ) As a workaround, Kindly restart the relay event to avoid this issue.
PR Number	Synopsis	Category: Express PFE CoS Features
1478811	[cos] [scheduler] scapa:scheduler with all queues oversunscribed, max latency is different on different queues - 21ms ~ 29ms Product-Group=evo	CoS scheduler: With all queues oversubscribed, maximum latency varies among queues (21ms to 29 ms)
1485478	In strict-priority mode, with any form of rate-limiter/shaper configured, it might create some accuracy gaps in the scheduler across queues. Product-Group=evo	BGP started creating route pointing to List NH having INDIRECT members inside after comcast N+1 feature. But resolver treats LIST NH as a leaf node and does not do loop detection inside List NH members (Day 1 behavior). This causes wedges in Packet Forwarding Engine as loop detection does not happen.
1501083	PTX10008 EVO: Tail drops (VOQ drops) are consistently seen on a High priority queue (AF4) with "shared" buffer configs Product-Group=evo	A PTX10008 system running Junos EVO software with "shared" buffer configuration may see Tail drops - aka VOQ drops - on the high priority queue (AF4). This happens when the number of packet flows is too low to properly load balance traffics over member links of AE interface bundles.
1506855	Shapers applied on Interface Output Queues, either through the transmit-rate "exact" or "rate-limit" knob may not sometimes draw the expected output scheduler accuracy. Product-Group=evo	Shapers applied on Interface Output Queues, either through the transmit-rate "exact" or "rate-limit" knob may not sometimes draw the expected output scheduler accuracy.
1523066	With traffic running, if the FPC which is connected to traffic generator is rebooted, it might lead to stuck traffic scenario on certain ports post resumption. Product-Group=evo	With traffic running, if the FPC which is connected to traffic generator is rebooted, it might lead to stuck traffic scenario on certain ports post resumption.
PR Number	Synopsis	Category: Express PFE FW Features
1499294	On a QFX5220 :: show firewall cli shows error error: communication failure with /re0/evo-pfemand/ when unique filter is applied over all physical interfaces. Product-Group=evo	show firewall cli shows error error: communication failure with /re0/evo-pfemand/ when unique filter is applied over all physical interfaces.
PR Number	Synopsis	Category: Express PFE MPLS Features
1472908	Traffic loss of up to 400 ms can be seen in MPLS FRR scenario Product-Group=evo	Traffic loss of upto 400 ms is seen during MPLS FRR test with following scale: 600K IPv4 routes 40K IPv6 routes 19K Transit LSPs 1.6K ingress LSPs 10K BGP LU.
1517870	MPLS ping will not work RSVP LSP with UHP configured Product-Group=evo	MPLS ping will not work RSVP LSP with UHP configured
PR Number	Synopsis	Category: Path computation client daemon
1481462	[northstar_pccd] [tag_rro_mismatch]  After interface flap,RRO mismatch between pcep and mpls(p2mp) Product-Group=evo	There is a minor data mismatch in RRO between PCE and PCC.
PR Number	Synopsis	Category: Resource Reservation Protocol
1518968	After graceful switchover, ingress RSVP sessions go down and take up to 5 minutes to come up. Product-Group=evo	After graceful switchover, ingress RSVP sessions in new master go down and take up to 5 minutes to come up.
PR Number	Synopsis	Category: PTX10K platform specific fabric PRs
1511918	fabric_down_condition_on_pfe errors not cleared when fpc is offlined after fabricHub app restart Product-Group=evo	fabric_down_condition_on_pfe errors not cleared when fpc is offlined after fabricHub app restart
1514668	Sib fault errors and alarms are not cleared after sib is recovered following fabspoked-fchip abrupt kill and restart Product-Group=evo	Sib fault errors and alarms may not get cleared after sib is recovered following fabspoked-fchip process' abrupt kill and restart.
1515790	For fabspoked-pfe, 'Restart Supported' and 'Restart Node' flags are incorrect in the output of 'show system applications app' Product-Group=evo	For fabspoked-pfe, 'Restart Supported' and 'Restart Node' flags are incorrect in the output of 'show system applications app fabspoked-pfe detail'. Show command shows that app can be restarted without needing node reboot, but restarting the app leads to node reboot.
PR Number	Synopsis	Category: PTX10K RE EVO Issues
1503269	[generic_evo] - PTX1008: RCB: Switchover Status is not reflecting as expected at "show system switchover" in new backup post performing mastership switchover Product-Group=evo	According to the current implementation, to display switchover status using the show system switchover command on backup, only the readiness of configuration database, object database and applications: ready state are considered. It does not check for the output of the request chassis routing-engine master switch check command. As a result, in some of the cases the output of both the commands could be different for 'switchover readiness' for a short duration of time. This is a day-1 behavior in Junos OS Evolved.