Caveats In Cisco Ios Xe 3.9S Releases - Cisco ASR 900 Series Release Notes

Software Upgrade Limitation
We recommend you set the interface-module-delay value to 150 or greater in order to ensure sufficient
time for IM software upgrades.
Subinterfaces Limitation
T1/E1 IM Limitations
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Caveats in Cisco IOS XE 3.9S Releases

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Note If you have an account on Cisco.com, you can also use the Bug Toolkit to find select caveats of any
severity. To reach the Bug Toolkit, log in to Cisco.com and go to
http://www.cisco.com/pcgi-bin/Support/Bugtool/launch_bugtool.pl. (If the defect that you have
requested cannot be displayed, this may be due to one or more of the following reasons: the defect
number does not exist, the defect does not have a customer-visible description yet, or the defect has been
marked Cisco Confidential.)
The Dictionary of Internetworking Terms and Acronyms contains definitions of acronyms that are not
defined in this document:
http://docwiki.cisco.com/wiki/Category:Internetworking_Terms_and_Acronyms_(ITA)
The following sections describe the open and resolved caveats in 3.9S Releases:
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OL-26630-12
The Cisco ASR 903 Router does not support subinterface configurations except on ATM interfaces.
You can configure similar functionality using multiple Ethernet Virtual Connections on an interface.
For more information, see
Inverting data on the T1/E1 interface is not supported—Inverting the data stream using the invert
data interface command is not supported.
Bit error rate test (BERT) patterns have limited support—Currently, only the 2^11, 2^15,
2^20-O153, and 2^20-QRSS patterns are supported for BERT.
If you issue the no card type command on the controller, you must reload the router in order to
configure a new card type value.
Caveats describe unexpected behavior. Severity 1 caveats are the most serious caveats. Severity 2
caveats are less serious. Severity 3 caveats are moderate caveats and only select severity 3 caveats
are included in this chapter.
This section describes caveats in Cisco IOS XE 3.9S releases. The following information is
provided for each caveat:
Symptom—A description of what is observed when the caveat occurs.
Conditions—The conditions under which the caveat has been known to occur.
Workaround—Solutions, if available, to counteract the caveat.
Open Caveats—Cisco IOS XE Release 3.9(2)S, page 6
Resolved Caveats—Cisco IOS XE Release 3.9(2)S, page 6
Open Caveats—Cisco IOS XE Release 3.9(1a)S, page 14
Resolved Caveats—Cisco IOS XE Release 3.9(1a)S, page 18
Open Caveats—Cisco IOS XE Release 3.9(0)S, page 27
Configuring Ethernet Virtual Connections on the Cisco ASR 903
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
Caveats in Cisco IOS XE 3.9S Releases
Router.
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