Cisco Cisco IOS Software Release 12.2(11)YV Release Notes
9
Release Notes for the Cisco 800 and SOHO 90 Series Routers for Cisco IOS Release 12.2(11)YV
OL-3705-03
Caveats
Flash File System Squeeze Utility
When a Flash memory device is full, the files must be rearranged so that the space used by the deleted
files can be reclaimed. The squeeze feature erases all the deleted files from the router’s file system and
copies all the valid files from the beginning of the Flash memory. The squeeze operation can take as long
as several minutes because it involves erasing and rewriting almost an entire Flash memory space. To
enable this feature, the entire Flash device, including any partitions, has to be completely erased. There
is a provision in the erase command to disable this squeeze utility.
files can be reclaimed. The squeeze feature erases all the deleted files from the router’s file system and
copies all the valid files from the beginning of the Flash memory. The squeeze operation can take as long
as several minutes because it involves erasing and rewriting almost an entire Flash memory space. To
enable this feature, the entire Flash device, including any partitions, has to be completely erased. There
is a provision in the erase command to disable this squeeze utility.
New Software Features in Release 12.2(11)T
For information regarding the features supported in Cisco IOS Release 12.2 T, refer to the
Cross-Platform Release Notes and New Feature Documentation links at the following location on
Cisco.com:
Cross-Platform Release Notes and New Feature Documentation links at the following location on
Cisco.com:
This URL is subject to change without notice. If it changes, point your web browser to Cisco.com, and
click the following path:
click the following path:
Service & Support
:
Technical Documents
:
Cisco IOS Software
:
Release 12.2
:
Release Notes
:
Cross-Platform Release Notes (Cisco IOS Release 12.2T)
Caveats
Caveats describe unexpected behavior or defects 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.
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 Release 12.2 T are also in Release 12.2(11)YV2. For information on caveats in Cisco IOS
Release 12.2 T, refer to the
Release 12.2 T, refer to the
document. For information on caveats
in Cisco IOS Release 12.2, refer to the
document. These documents
list severity 1 and 2 caveats, and are located on Cisco.com and the Documentation CD.
Note
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
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
.
Resolved Caveats - Release 12.2(11)YV2
Cisco IOS Release 12.2(11)YV2 is a rebuild release for Cisco IOS Release 12.2(11)YV. This section
describes unexpected behavior that is fixed in Release 12.2(11)YV2.
describes unexpected behavior that is fixed in Release 12.2(11)YV2.
CSCdz71127
Cisco routers and switches running Cisco IOS software and configured to process Internet Protocol
version 4 (IPv4) packets are vulnerable to a Denial of Service (DoS) attack. A rare sequence of crafted
IPv4 packets sent directly to the device may cause the input interface to stop processing traffic once the
version 4 (IPv4) packets are vulnerable to a Denial of Service (DoS) attack. A rare sequence of crafted
IPv4 packets sent directly to the device may cause the input interface to stop processing traffic once the