Примечания к выпуску для Cisco Cisco IOS Software Release 12.2(4)YH

Caveats describe unexpected behavior in Cisco IOS software releases. Severity 1 caveats are the most 
serious caveats, severity 2 caveats are less serious, and severity 3 caveats are the least serious of these 
three severity levels.

Caveats in Cisco IOS Releases 12.2 and 12.2 T are also in Cisco IOS Release 12.2(4)YH. For 
information on caveats in Cisco IOS Release 12.2, see 

. For 

information on caveats in Cisco IOS Release 12.2 T, see 

. These 

two documents list severity 1 and 2 caveats and are located on 

Cisco.com

and the Documentation 

CD-ROM. 

If you have an account with Cisco.com, you can also use the Bug Toolkit to find select caveats of any 
severity. To reach the Bug Toolkit, log in toCisco.com and click Service & Support: Technical 
Assistance Center: Tool Index: Bug Toolkit. Another option is to go to 

http://www.cisco.com/cgi-bin/Support/Bugtool/launch_bugtool.pl

.

This section describes possibly unexpected behavior by Release 12.2(4)YH. Only severity 1 through 3 
caveats are included.

The 806uut is unable to resolve the domain name and the router probe timeout occurs for a DNS 
operation. 

The router timeout is lost after a reload if the timeout value is set to a value greater than 60,000 ms and 
the frequency parameter is set to 300 seconds. Although the timeout setting works in the running 
configuration, when the configuration is saved and the router is reloaded, the timeout is set to 30,000 ms 
and the following error message appears. 

%Illegal Value:  Cannot set Timeout to be greater than Frequency 

When a Cisco router listens for TFTP Protocol in a non-standard port using a PAM configuration and 
with nat overload configured, the TFTP transfer fails.

The default value for the object rttMonEchoAdminCache variable cannot be read using SNMP.