Cisco ASR 903 Release Notes page 224

Caveats in Cisco IOS XE 3.9S Releases
CSCuc25058
•
Symptoms: Forced QL value on BITS port gets overwritten when a new primary clock source with
different QL value is selected.
Conditions:
Network clocking should be enabled in QL mode and with BITS port configured to output system
clock with forced QL value.
Workaround: Reconfigured the forced Tx QL value on the BITS port after the system switches to
clock source with different QL value than the current selected.
Further Problem Description: When the system selects a new primary clock source, it propagates
the QL value of that primary clock source on all the timing ports, so that all timing ports reflect the
system QL value. When this update is send the forced TX QL value configured on each port gets
overwritten by the system QL Value.
CSCuc34088
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Symptom: The router passes lower traffic levels when you add links to an IMA bundle and perform
IM OIR/router reload.
Conditions: Occurs when you send traffic above the E1 line rate on one link within an IMA bundle
and reset (OIR) the interface module.
Workaround: Remove and re-apply the IMA interface configuration.
CSCuc35618
Symptoms: REP session flaps post SSO and traffic is dropped until the session re-converges after
the SSO.
Conditions: Upon SSO.
Workaround: None
CSCuc36241
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Symptoms: The router is unable to select a given PTP clock as a network clock source.
Conditions: Occurs when you configure PTP as an input network clock source while the slave clock
is still in a holdover state. In the holdover state, the slave clock has not yet attempted to establish a
frequency lock with a master clock.
Workaround: Wait for the PTP slave clock to lock to the master clock before configuring PTP as a
network clock input source.
CSCuc36381
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Symptoms: CLI show satellite env and show satellite alarm not displaying any output.
Conditions: Show satellite env and show satellite alarm CLI is not supported in satellite mode in
4.3.0
Workaround: Can check the status in ASR9k.
CSCuc41871
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Symptoms: ATM interfaces stay down during normal operations
Conditions: 1. Post router reload 2. When peer interface cable is pulled out & put back
Workaround: Interface reset (shut/no shut)
CSCuc42002
•
Symptoms: The router crashes when configuring the ATM interface, displaying a segmentation
fault error.
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
38
OL-26630-08