Cisco ASR 903 Release Notes

32
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-08
Chapter
Caveats in Cisco IOS XE 3.7S Releases
• CSCue26927
Symptom: Alarms are not forwarded in Circuit Emulation Services over Packet (CESoP).
Conditions: This issue occurs when alarms are not forwarded when AC goes down.
Workaround: There is no workaround.
• CSCue30481
Symptom: The Cisco ASR 903 router does not lock to the synchronous Ethernet clock source after
reload. It remains in Ql-failed state.
Conditions: This issue occurs after a reload of router with saved synchronous Ethernet clock
configurations is performed.
Workaround: Unconfigure and reconfigure the clock source.
• CSCue32753
Symptom: The OC-3 interface modules are lost after a In Service Software Upgrade (ISSU) is
performed on the Cisco ASR 903 router and configuration mismatch errors are displayed on router
console. The standby RSP reaches standby-hot state causing continuous IOMD crash messages at
regular intervals.
Conditions: This issue occurs when ISSU is performed.
Workaround: There is no workaround.
Try unconfiguring the OC-3 interface module configuration and reconfigure again. Reload the
standby RSP to stop IOMD crashes. Perform a hard OIR or process kill if the interface module enters
out of service state
• CSCue34618
Symptom: Traffic stops flowing with a combination of Bandwidth Remaining Ratio (BRR) and
policer in different class-maps under a policy.
Conditions: This issue occurs when the bandwidth remaining ratio is configured as a combination
of police with cir (total brr and police cir equal to 1000M).
Workaround: Configure total BRR and police cir lesser than 1000M. For example, class A Police
cir 100m and class B BRR 90% fails but BRR 89% works.
• CSCue42315
Symptom: CPU hog messages and IOMD crash observed on the Cisco ASR 903 router.
Conditions: This issue occurs with OC-3 interface module after executing the shutdown command
followed by a no shutdown command of the multilink bundle when traffic is sent with a packet size
greater then 1500 byte.
Workaround: There is no workaround.
• CSCue45498
Symptom: CPU utilization is high when sending traffic with varying source MAC addresses for
multiple streams for a bridge domain (BD).
Conditions: This issue occurs when port-channel is configured as Ethernet Flow Point (EFP) for the
BD and mac-limit is configured to 0 for that BD.
Workaround: There is no workaround.

Cisco ASR 903 Specifications

General

Form Factor	Modular
Storage Temperature	-40°C to 70°C (-40°F to 158°F)
Humidity	5% to 95% non-condensing
Redundancy	Yes, redundant power supplies and route processors
Operating System	Cisco IOS XE
Power Supply	AC or DC
Switching Capacity	240 Gbps
Operating Temperature	-40°C to 65°C (-40°F to 149°F)
MTBF	200, 000 hours
Supported Protocols	IPv4, IPv6, MPLS, L2VPN, L3VPN
Interfaces	Gigabit Ethernet, 10 Gigabit Ethernet, T1/E1