Specifications

1356
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(27)S1
Miscellaneous
• CSCeb22276
Symptoms: Some Simple Network Management Protocol (SNMP) packets may linger in the input
queue while they are processed. However, the packets do exit the queue on their own without any
intervention from the user. This fix allows these packets to be removed from the queue more quickly.
Conditions: This symptom is observed on a device that runs Cisco IOS software and that supports
SNMP operations. In addition, the SNMP request must contain a valid community string.
Workaround: Protect the SNMP community strings with good password management. Permit SNMP
traffic only from trusted devices.
• CSCec07354
Symptoms: On dual Performance Route Processors (PRPs), the secondary PRP does not boot up.
When logging into the card, it is in the ROMmon state.
Conditions: This symptom occurs when upgrading to Cisco IOS Release 12.0(15)S1.
Workrooms: Boot up the card manually with the boot command on the Common prompt.
• CSCec63687
Symptoms: An E3 4xOC12 channelized line card keeps resetting.
Conditions: This symptom is observed under load sharing between a POS channel interface and a
regular POS interface.
Workrooms: There is no workaround.
• CSCec77256
Symptoms: Basic VPN with SRP Dense (E4P) links fail the ping test.
Conditions: This symptom is observed on a Cisco 12000 series router that is running the Cisco IOS
Release 12.0 S image gsr-p-mz.
Workaround: There is no workaround.
• CSCed02802
Symptoms: A 1-port 10-Gigabit Ethernet line card may generate pause frames under an inbound
heavy load if there is a bottle neck in the router, for example an egress line card. The pause frames
may cause FCS errors at the remote end device.
Conditions: This symptom is observed on a Cisco 12000 series router that is running Cisco IOS
Release 12.0(25)S2.
Workaround: There is no workaround.
• CSCed03096
Symptoms: Shutting down the loopback 0 causes the 3xGigabit Ethernet (engine 2) line card that is
configured with EoMPLS and VPN to fail.
Conditions: This symptom is observed on a Cisco 12000 series router that is running Cisco IOS
Release 12.0(27)S.
Workaround: There is no workaround.
• CSCed06014
Symptoms: On a Cisco router, IPv6 traffic is counted under IPv4 counter on the Engine 4 POS line
cards on the egress side when using the show interface number [accounting] command.
Conditions: This symptom is observed on a Cisco 12000 series router.