Specifications

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OpenFlow does not respond to port_down events when the echo interval timeout is
set for less than 11 seconds. PR989308
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The fabric performance of MPC1, MPC2, or 16xXE MPC in 'increased-bandwidth' mode
on an MX960 populated with SCBE's will be less compared to redundant mode due
to XF1 ASIC scheduling bugs. PR993787
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Under normal circumstances, the Maximum Receive Unit (MRU) value is set to MTU
size + 8 bytes (e.g. MTU=9102, MRU=9102+8=9110). But in this case, when MTU is set
to a large value (MTU=9192) on AE interface, the MRU still uses the default value 1522
bytes. So when the interface receives packets which size are more than 1522 bytes, the
packets are dropped. PR994826
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On 10X10GE SFPP, when an interface configured for CCC and asynchronous-notification,
and it is told to turn off its laser. Its laser flaps on and off for some period of time.
PR996277
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On T4000 router with type5 FPC. After FPC rebooting, if chassisd process does not
get FPC ready/FPC online ACK message from FPC in 360 seconds, the FPC might reset
again. PR998075
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The PIC memory gauge counters show up as 0 after a GRES switchover in the "show
chassis pic fpc-slot X pic-slot Y" output. PR1000111
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Service PIC on MS-MPC card could core-dump and restart on receiving a stray SIGQUIT
signal due to it not handling the signal. With this fix we ignore SIGQUIT signal and avoid
Service PIC restart. PR1004195
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When using AMS load-balancing if a PIC in the AMS bundled if offline for any reason
and the operator on-lines the pic there is slight 30 to 40 second momentary traffic
loss. PR1005665
Infrastructure
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On RE-S-1800 family of Routing Engine, after an intensive writing to SSD, the immediate
rebooting might cause SSD to corrupt. PR937774
Interfaces and Chassis
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If the "tunnel-destination" address of a Generic Routing Encapsulation (GRE) interface
is placed in one instance and the GRE interface is placed in another routing-instance,
the lookup for the GRE tunnel destination is done on inet.0 instead of the appropriate
routing instance's inet.0 table. The similar issue could happen on IP-over-IP or
Automatic Multicast Tunneling (AMT) tunnels too. PR851165
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NPC crash seen while verifying Inline Jflow in both RE0 and RE1 and do switchover 10
times and verify new files are updated properly. This is software bug which have been
fixed in 12.3R5. PR905916
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The Packet Forwarding Engine alarms raised by PFEMAN thread using cmalarm api
calls will not be transmitted to Routing Engine. As impact, these alarms will not reflect
on Routing Engine. There is no impact on functionality, otherwise. PR921254
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If offline and remove a Non-Ethernet Modular Interface Card (MIC) from MX Series
and then perform a unified in-service-software-upgrade (ISSU), the unified ISSU may
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Resolved Issues