Cisco ASR 903 Release Notes

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Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-08
Caveats in Cisco IOS XE 3.9S Releases
Symptom: Receive a event hog msg when advertise 21k to 25 k routes into MBGP and export from
a PE to other PE.
Conditions: When the redistributing routes from range of 21k to 25k customer routes from ospf into
MBGP and export from a PE to other PE.
Workaround: No workaround as of now.
• CSCud35689
Symptoms: Queue-limit configuration at parent level of a policy or in a Vlan class/ port level is
accepted. It should be rejected
Conditions: When configuring queue limit on policy at parent level or in vlan class/ port level.
Workaround: None
• CSCud36014
Symptoms: Multiple entries are seen in configs
Conditions: while configuring licence in bootlevel
Workaround: -none-
• CSCud37927
Symptoms: The router does not learn remote Connectivity Fault Management (CFM) Maintenance
Endpoint (MEPs).
Conditions: If we have REP or STP on core with one port as ALT or BLK state.
Workaround: None.
• CSCud38038
Symptom: The router records incorrect delay measurements after a reload.
Conditions: Occurs under the following conditions:
– You configure Delay Measurement Message (DMM) on a port-channel interface.
– The port-channel member links are on different interface modules (IMs).
– You reload the router.
Workaround: You can use the following workarounds:
– Remove the ethernet cfm global command and re-apply it after the port-channel member links
recover.
– Configure PTP clock synchronization.
• CSCud38115
Symptom: OSPF connections flap and drop traffic for approximately 20 seconds
Conditions: Occurs during stateful switchover (SSO).
Workaround: There is no workaround.
• CSCud38433
Symptom: The router is unable to establish MPLS neighborship or ping the destination loopback
interface.
Conditions: Occurs when you configure two Equal Cost Multipath (ECMP) paths on a bridge
domain interface (BDI) using static routes.
Workaround: The following workarounds exist:
– Use Interior Gateway Protocol (IGP) instead of static IP routes.

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