Release Notes for Cisco ASR 900 Series Routers, Cisco IOS XE Gibraltar 16.12.x

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Book Title

Release Notes for Cisco ASR 900 Series Routers, Cisco IOS XE Gibraltar 16.12.x

Chapter Title

Restrictions and Limitations

Results

Updated:
August 1, 2019

Chapter: Restrictions and Limitations

Restrictions and Limitations

  • The port restriction on 1-port OC-192 or 8-port low rate CEM interface module is on port pair groups. If you have OC48 configured on a port, the possible port pair groups are 0-1, 2-3, 4-5, 6-7. If one of the port within this port group is configured with OC48 rate, the other port cannot be used.

  • RS422 pinout works only on ports from 0 to 7.

  • The ip cef accounting command is not supported on the router.

  • Crash may be observed on the router when:

    • EoMPLS, CEM, ATM and IMA Pseudowire Redundancy (PW-redundancy) configurations exist while switchover and fail-back of the pseudowires are being triggered, and the show platform hardware pp active pw eompls command is executed.

  • Configuration sync does not happen on the Standby RSP when the active RSP has Cisco Software Licensing configured, and the standby RSP has Smart Licensing configured on the router. If the active RSP has Smart Licensing configured, the state of the standby RSP is undetermined. The state could be pending or authorized as the sync between the RSP modules is not performed.

  • Evaluation mode feature licenses may not be available to use after disabling, and enabling the smart licensing on the RSP2 module. A reload of the router is required.

  • Ingress counters are not incremented for packets of the below format on the RSP3 module for the 10 Gigabit Ethernet interfaces, 100 Gigabit Ethernet interfaces, and 40 Gigabit Ethernet interfaces:

    Packet Format

    MAC header---->Vlan header---->Length/Type

    When these packets are received on the RSP3 module, the packets are not dropped, but the counters are not incremented.

  • T1 SAToP, T3 SAToP, and CT3 are supported on an UPSR ring only with local connect mode. Cross-connect configuration of T1, T3, and CT3 circuits to UPSR are not supported.

  • PTP is not supported when 8-port 10 Gigabit Ethernet interface module is in oversubscribed mode.

  • ISSU is not supported between a Cisco IOS XE 3S release and the Cisco IOS XE Gibraltar 16.12.x release.

  • Port channel 61-64 is not supported in the 16.11.1a release. The range of configurable port channel interfaces has been limited to 60.

  • In the Cisco IOS XE Release 16.12.1, IPSec is not supported on the Cisco RSP3 module.

  • Effective with Cisco IOS XE Everest 16.6.1, the Port-channel (PoCH) scale is reduced to 24 from 48 for Cisco ASR 900 RSP3 module.


    Note

    The PoCH scale for Cisco ASR 907 routers is 48.

  • Remote loopback under STS1E controllers is not supported in Cisco IOS XE Release 16.12.5.

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