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Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(31)S
Conditions: This symptom is observed on Cisco 12000 series POS ISE line card that is configured
for Frame Relay encapsulation when one of its subinterfaces is used for Layer 3 VPN de-aggregation
and when a Frame Relay DLCI that is used for Layer 2 VPN traffic is configured on the same main
interface.
Workaround: There is no workaround.
• CSCeh15364
Symptoms: On a router that is configured for multi-router APS, the APS interfaces remain in the
Active/Inactive states. One of the interfaces is Active, while the other is Inactive. However, when
the line card holding the APS protect interface is reloaded and the line card comes back up, both the
Working and Protect interfaces end up in Active state.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(28)S2. Not every protect line card reload causes the symptom occur. The symptom is
readily observed when the reload of a Protect line card is accompanied by a simultaneously
occurring Signal Fail/Signal Degrade (set/clear) event on the Working line card.
Workaround: There is no workaround to prevent the symptom from occurring. However, when both
interfaces are in the Active state, a manual or forced APS switch may restore sanity to the APS
states.
• CSCeh17756
Symptoms: The PIM assert mechanism may not function properly, causing PE routers to remove
VRF subinterfaces from output interface lists, and, in turn, causing multicast traffic to be dropped.
Conditions: This symptom is observed when redundant PE routers and CE routers are located on one
LAN segment and when the CE routers select different PE routers as their next hop.
Workaround: Change the configuration in such a way that all CE routers on one LAN segment select
the same PE router as their next hop.
• CSCeh20201
Symptoms: Traffic entering a 1-port channelized OC-12/STM-4 (DS1/E1) ISE line card is dropped.
Conditions: This symptom is observed on a Cisco 12000 series when an MLP interface is moved
from the 1-port channelized OC-12/STM-4 (DS1/E1) ISE line card to another line card.
Workaround: There is no workaround.
• CSCeh20219
Symptoms: The policer does not function for nxDs0 interfaces.
Conditions: This symptom is observed on a Cisco 12000 series that is configured with a 1-port
channelized OC-12c/STM-4 (DS1/E1) ISE line card.
Workaround: There is no workaround.
• CSCeh20236
Symptoms: A Gigabit Ethernet port of an Engine 2 line card generates various error messages and
tracebacks when it is brought up. This situation affects the traffic flow.
Conditions: This symptom is observed when the line card is installed in a Cisco 12816 that runs a
Cisco IOS interim release for Release 12.0(31)S
Workaround: There is no workaround.
• CSCeh22267
Symptoms: A ping failure occurs between two SRP nodes.
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