Specifications

•
On M Series, MX Series, T Series platform with DHCP relay configured, the router might
keep filling a specific partition "/var/mfs/sdb" with files named log.XXXX and this
would eventually cause DHCP relay fail. PR1017642
•
This issue only affects OC-48 MICs. If an SFP is inserted into an OC-48 MIC port that
has been disabled the SFP will not show up in a >show chassis hardware command.
The issue is fixed with a patch. Contact JTAC to find out which version is best for you.
PR1031851
High Availability (HA) and Resiliency
•
Configuring the maximum segment size (MSS) for the TCP connection for BGP
neighbors, if "mtu-discovery" and "path-mtu-discovery" configuration statements are
removed, the default MSS value of 512 will be used instead, this is not an expected
behavior. PR835220
•
During a router hardware upgrade procedure, in dual Routing Engines system, the newly
installed Routing Engine may overwrite the other Routing Engine configuration with
the factory default configuration. As a result, both Routing Engines may bootup in
"Amnesiac" mode. This situation can occur under following conditions: - RE0 has
default factory configuration and, - RE1 has "commit synchronize" enabled - Both RE0
and RE1 boot-up simultaneously, or - RE0 is UP and running and RE1 is restarted.
PR909692
•
If NSR Routing Engine switchover has done right after committing the configuration
change which deletes routing-instance(s), some of those instances might not be
deleted from forwarding table. PR914878
Interfaces and Chassis
•
Packet Forwarding Engine continues to forward traffic to DHCP client on a demux
interface when ae0 interface is down. In this scenario the AE interface bundle has five
members and configured with minimum link value of 4. When two members are down,
the ae0 interface also goes down, but Packet Forwarding Engine continues to forward
traffic on other members for the demux interface. PR836846
•
Ethernet OAM: Ethernet Loopback test can only be performed if MAC DA is known in
the MAC table. PR879358
•
Customer may observe a traffic spike for few seconds on vc shaping when doing GRES.
PR925327
•
PPPoA session would not come up on removal/addition of cable to the tester port.
PR939404
•
After graceful Routing Engine switchover, there might be possible scenario wherein
renaming of an existing AE interface might fail with the following error
"CHASSISD_MAC_ADDRESS_AE_ERROR: chassisd MAC address allocation error for
ae". The problem is that when an AE device is removed, chassisd on the backup does
not remove the AE device from its’ MAC allocation data structure. PR943849
•
Demux Subscriber logical interfaces might show the interface as 'Hardware-Down'
even though the underlying ae bundle and its member link shows up. PR971272
73Copyright © 2015, Juniper Networks, Inc.
Known Issues