Cisco ASR 903 Release Notes

40
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-08
Caveats in Cisco IOS XE 3.9S Releases
Further Problem Description: ASR903 when locked to internal free-running clock, then ASR903
PTP master function transmits clockclass value 14 which corresponds to holdover state instead of
58 which corresponds to free-running clock.
• CSCuc64899
Symptom: The router does not learn remote Connectivity Fault Management (CFM) Maintenance
Endpoint (MEPs).
Conditions: Occurs on interfaces with an xconnect statement after a reload on a peer device.
Workaround: Remove and re-apply the CFM configuration.
• CSCuc66393
Symptom: The router loses OC-3 interface configurations after an ISSU upgrade.
Conditions: Occurs on OC-3 serial and POS interfaces after an ISSU software upgrade.
Workaround: There is no workaround.
• CSCuc66895
Symptom: Layer 2 traffic loop seen in REP topology for a transient time, when the Cisco ASR 903
which is a part of the REP ring is reloaded.
Conditions: This symptom is observed when the Cisco ASR 903 is part of an REP ring, and the box
is reloaded with saved REP configurations.
Workaround: Traffic loop is transient, once REP convergence looping is stopped.
• CSCuc68246
Symptom: The standby IOMD crashes on booting up the standby RSP.
Conditions: This symptom occurs when booting up the standby RSP with a configuration that is
already present.
Workaround: Boot up the standby without any configurations and start configuration once the
standby has reached STANDBY_HOT state.
• CSCuc68462
Symptom: The router drops PTP traffic.
Conditions: The issue occurs occasionally when you configure PTP slave clock to receive
VLAN-tagged traffic.
Workaround: There is no workaround.
• CSCuc70509
Symptom: Packet rate counters i.e. packets per second is not cleared to 0 when interface goes down.
Conditions: Applies to all TDM interfaces like serial , mlppp , POS , etc. Issue seen on controller
shut etc, not seen on interface shut.
Workaround: None. Should be fixed now.
• CSCuc71410
Symptoms: Config sync failure but it doesn’t have much of an impact on the service
Conditions: We have a mac limit configured with action as limit and when the configured limit is
exceeded, the standby comes up after the limit is hit
Workaround: none

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