Specifications

54
Release Notes for Cisco IOS Release 12.0 S
78-7130-11 Rev. B0
Caveats
• CSCds14076
A Cisco 12000 series Gigabit Switch Router (GSR) that is running the gsr-p-mz.120-11.5.S image
with 4-Port OC-12 and OC-48 Packet-over-SONET (POS) line cards might experience a condition
where the line protocol does not come up when PPP encapsulation and IP access lists are configured
on the interface.
Workaround: Use High-Level Data Link Control (HDLC) encapsulation and access lists, or use
PPP encapsulation and remove IP access lists from the interface.
• CSCds16062
When a link is added to a bundle from another port adapter while Distributed Multilink PPP
(DML-PPP) is running, a Cisco 7500/RSP series router may reload, and the port adapter in the bay
will be switched off. There is no workaround.
• CSCds23164
A Cisco 7500 series router with a spatial reuse protocol (SRP) interface that is running distributed
Cisco Express Forwarding (dCEF) might not correctly process the access control lists (ACLs) that
are applied to the SRP interface.
Workaround: Disable dCEF on the SRP interface by entering the no ip route-cache distributed
interface configuration command, or run centralized CEF by using the ip cef global configuration
command.
• CSCds29058
A Cisco 12000 series Gigabit Switch Router (GSR) might reload unexpectedly if all Multiprotocol
Label Switching Traffic Engineering (MPLS TE) tunnels are removed. This situation occurs under
heavy load conditions (for example, when several thousand routes and several hundred TE tunnels
are removed).
Workaround: Allow a delay of a couple of seconds between tunnel removals.
• CSCds29675
A Cisco 12000 series Gigabit Switch Router (GSR) with a single-port OC-48 Packet-over-SONET
(POS) line card might reload with a software-forced crach on the line card if the line card is
experiencing over 120 MB of traffic. There is no workaround.
• CSCds30121
A Cisco 12000 series Gigabit Switch Router (GSR) with approximately 100 switched virtual
circuits (SVCs) may stop sending data randomly across any SVC. This situation is accompanied by
“encapsualtion error2” failure messages.
Workaround: Remove the SVC from the map group, and add it back again.
• CSCds30651
Writing to an AT Attachment (ATA) device might cause the device to become unusable and result
in the following error message:
ATA_Status time out waiting for 1
There is no workaround.
• CSCds32423
A Cisco 12000 series Gigabit Switch Router (GSR) that is running the gsr-p-mz.12.0(10.3)S1
image reloads with the following error message when the no aps protect interface configuration
command is entered:
System returned to ROM by bus error at PC 0x60180B9C, address 0xD0D0D19
There is no workaround.