Open Caveats-Cisco Ios Xe Release 3.7(1)As - Cisco ASR 903 Release Notes

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Open Caveats—Cisco IOS XE Release 3.7(1)aS
This section documents the unexpected behavior that might be seen with the Cisco ASR 903 Router in
Cisco IOS XE Release 3.7(1)aS.
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OL-26630-08
Symptom: Interface module (IM) IM FPGA upgrade fails.
Conditions: Occurs on some IMs when you install an IOS image with bundled FPGA software.
Workaround: Manually upgrade the FPGA.
CSCuc98590
Symptom: The router can crash when you remove a boundary clock (BC) configuration.
Conditions: Occurs very rarely when you remove a BC configuration.
Workaround: There is no workaround. However, the issue occurs very rarely.
CSCud12587
Symptom: When handling IS-IS packets, the router punts the traffic to the Route Switch Processor
(RSP) and applies policing to limit the traffic to 1 Mbps.
Conditions: Occurs when you enable IS-IS over an Ethernet over MPLS (EoMPLS) connection.
Workaround: Use IS-IS over another connection type or limit the IS-IS traffic to less than 1 Mbps.
CSCud13535
Symptom: The router drops imposition traffic sent to a neighbor device over a VPLS pseudowire.
Conditions: Occurs when the neighbor device configuration includes the no split horizon group
command.
Workaround: Remove the no split horizon group command from the VPLS neighbor device.
CSCud28787
Symptom: The 10 gigabit Ethernet interface module (IM) flaps.
Conditions: Occurs when the IM passes high traffic volumes for an extended period of time.
Workaround: There is no workaround.
CSCud43580
Symptom: The router does not apply the bandwidth remaining percent command within a QoS
policy in some instances.
Conditions: The issue can occur occasionally when:
There is a large discrepancy in bandwidth remaining values between QoS classes
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The classes containing the bandwidth remaining statements are oversubscribed at a low rate
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or have a low queue-limit.
Workaround: Apply the following workaround:
Increase the queue-limit value to 120 kilobytes or above.
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If the QoS configuration uses WRED, increase the minimum threshold value.
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Alter the bandwidth remaining values to reduce the ratio between values.
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CSCts95896
Symptoms: The router stops passing traffic on EVC interfaces.
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
Caveats in Cisco IOS XE 3.7S Releases
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