Cisco Cisco IOS XR Software Release 4.3
Serial0/6/1/1/8/1:0
Serial0/6/1/1/9/1:0
Serial0/6/1/1/10/1:0
Serial0/6/1/1/11/1:0
Serial0/6/1/1/12/1:0
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Serial0/6/1/1/10/1:0
Serial0/6/1/1/11/1:0
Serial0/6/1/1/12/1:0
• Starting with Cisco IOS XR Software Release 3.9 the pw-class <class-name> encapsulation mpls command control-word
option default is now disable -In Cisco IOS XR Software Release 3.9 and above the control word is disabled by default. To
configure the control word, enter the control-word keyword shown in the following example:
configure the control word, enter the control-word keyword shown in the following example:
pw-class class1 encapsulation mpls control-word
• For configured policer rates of less than 1 Mbps, the actual policer rate can be approximately 10 percent less than the configured
rate. For example, for a configured policer rate of 500 kbps, the actual policer rate is 448 kbps due to a granularity round down
in hardware.
in hardware.
• In Cisco ASR 9000 Series Aggregation Services Router Software Release 4.0.0, the minimum configurable logging buffered
size has been increased to 307200. Any configuration with a value less than 307200 fails to upgrade to Release 4.0.1.
◦Run the show configuration failed startup command on startup to display the failed configuration.
◦Workaround: Prior to upgrading to Release 4.0.1, set the logging buffer size to a value of 307200 or greater (logging
buffered 307200) .
• dsu mode Command Default— For E3 interfaces on the 4-Port Clear Channel T3/E3 SPA that interoperate with E3 interfaces
on a Cisco 10000 Series router, the default data service unit (DSU) mode is digital-link. To change the DSU mode to cisco,
configure scrambling.
configure scrambling.
• In Cisco ASR 9000 Series Aggregation Services Router Software Release 4.1.0, you use the cablelength short command to
set a cable length of 655 feet or shorter for a DS1 link on a 4-Port Channelized T1/E1 SPA. The cablelength short command
options are listed as follows:
options are listed as follows:
RP/0/RSP0/CPU0:(config-t1)#cablelength short ?
133ft
0-133ft
266ft
134-266ft
399ft
267-399ft
533ft
400-533ft
655ft
534-655ft
However, when using the cablelength short command on a 4-Port Channelized T1/E1 SPA in Cisco ASR 9000 Series Aggregation
Services Router Software Release 4.1.0, only the 133ft option (for cable lengths from 0 to 133 feet) works. The other values
that are greater than 133 feet (266, 399, 533, or 655) all cause the T1 controller to go down. The workaround is to restart the
controller after you set the cable length to 266, 399, 533, or 655 feet. The cablelength long command works correctly
Services Router Software Release 4.1.0, only the 133ft option (for cable lengths from 0 to 133 feet) works. The other values
that are greater than 133 feet (266, 399, 533, or 655) all cause the T1 controller to go down. The workaround is to restart the
controller after you set the cable length to 266, 399, 533, or 655 feet. The cablelength long command works correctly
Caveats
Caveats describe unexpected behavior in Cisco IOS XR Software releases. Severity-1 caveats are the most critical caveats; severity-2
caveats are less critical.
caveats are less critical.
This section contains the caveats for Cisco ASR 9000 Series Aggregation Services Router Software Release4.3.1 and the Cisco ASR
9000 Series Aggregation Services Router platform.
9000 Series Aggregation Services Router platform.
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