Cisco ASR 903 Release Notes

17
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-08
Chapter Restrictions and Caveats in Cisco IOS XE 3.6S Releases
Caveats in Cisco IOS XE 3.6S Releases
Symptoms: The router drops PTP packets.
Conditions: Occurs when PTP packets traverse a BDI with encapsulation configured.
Workaround: There is no workaround.
• CSCtz55566
Symptoms: The router displays I2C error messages intermittently.
Conditions: Occurs when you insert a copper SFP in the SFP interface module.
Workaround: There is no workaround.
• CSCtz83050
Symptoms: An interface module goes into Inserted state during ISSU.
Conditions: Occurs when you perform an ISSU upgrade or downgrade.
Workaround: There is no workaround.
• CSCtz96120
Symptoms: The router does not recognize interface modules after they are reset during a software
upgrade.
Conditions: Occurs during ISSU upgrade or downgrade.
Workaround: There is no workaround.
Open Caveats—Cisco IOS XE Release 3.6(0)S
This section documents the unexpected behavior that might be seen with the Cisco ASR 903 Router in
Cisco IOS XE Release 3.6(0)S.
• CSCtr40582
Symptoms: Ping fails.
Conditions: Occurs when you configure AMI line code on a T1 controller.
Workaround: There is no workaround.
• CSCts75456
Symptoms: Multicast (S,G) entry not established.
Conditions: Occurs when you configure OIF and IIF within BDI that are part of a trunk EFP.
Workaround: Configure normal EVCs instead of trunk EVCs.
• CSCts95896
Symptoms: The router stops passing traffic on EVC interfaces.
Conditions: Occurs when you issue the default interface command and immediately restore the
configuration. The issue occurs with configurations containing either a large number of EFPs or
features that impact EFP programming at a lesser scale, such as QoS.
Workaround: Wait for the router to clear the old EFP configuration before adding a new
configuration.
• CSCtv15403
Symptoms: 64 byte Line rate traffic not achieved.
Conditions: Occurs with more than 11 links in a MLP bundle with A900-IMA16D interface module
and packet size 64 bytes.

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English