Specifications

1099
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S4
• CSCsa96941
Symptoms: When VBR ATM traffic is sent through a Cisco 12000 series 4-port ATM OC-3 ISE line
card via an L2TPv3 IP tunnel to another 4-port ATM OC-3 ISE line card on another Cisco 12000
series, the VBR ATM traffic passes at lower rates than what is configured on the routers, and cell
loss occurs.
Conditions: These symptoms are observed on a Cisco 12000 series that is connected back-to-back
via an OC-192 POS link to another Cisco 12000 series.
Workaround: There is no workaround.
• CSCsb00493
Symptoms: Packets do not switch through a core interface of a line card that has hardware
acceleration enabled.
Conditions: This symptom is observed on a Cisco 12000 series when the line card that contains the
core interface has also a VRF interface that is shut down.
Workaround: Disable hardware acceleration on the line card.
• CSCsb01461
Symptoms: A 4-port OC-12/STM-4 ATM ISE line card may forcefully reload. The following log
message may also be reported after the forceful reload:
Linecard Reset with %PM622-3-CPK24_INTR: Egr Mismatch.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(27)S5.
Workaround: There is no workaround.
• CSCsb02964
Symptoms: When a class map that contains an access control list (ACL) that is too large and
complex to fit in memory is applied to an MQC policy map on a Cisco 10720, the router pauses
indefinitely while compiling the ACL and generates a MALLOCFAIL error. The router should
report an out-of-memory situation.
Conditions: This symptom is observed when the ACL contains 2000 lines and is complex.
Workaround: There is no workaround.
• CSCsb07591
Symptoms: On a 1-port OC-48 Engine 3 line card that has 350 Frame Relay subinterfaces on which
VRF is enabled, traffic is forwarded on all subinterfaces with the exception of one subinterface.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(28)S and that functions as a CE router when the 1-port OC-48 Engine 3 line card
provides a connection to a PE router.
Workaround: Remove and reconfigure VRF forwarding on the affected subinterface.
• CSCsb08198
Symptoms: On a Cisco 12000 series that is configured for MR-APS, traffic duplication occurs in the
ingress direction on a 1-port channelized OC-12 (DS1/E1) ISE line card.
Conditions: This symptom is observed after an RP switchover, after the router reloads, or after an
APS switchover. The inactive APS interface should drop all ingress traffic, but this does not occur,
causing traffic duplication.
Workaround: There is no workaround.