Specifications

1349
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(27)S2
Conditions: This symptom is observed when LFI is enabled with one member link in the MLP
bundle.
Workaround: Either remove dCEF or remove LFI. (A combination of CEF and MLP is not
supported.) Note that if there are two member links in the interleaving-enabled MLP bundle, the
problem does not occur.
• CSCee22933
Symptoms: CBR-type or VBR-type VP cell-relay or cell-packing AToM VCs may not be able to
retain their bandwidth to the configured CBR or VBR shaping rate. This situation persists even when
the total shaping rate of the VPs and VCs is far below the physical bandwidth of the interface.
Conditions: This symptom is observed when there are many other cell-relay or cell-packing AToM
VCs configured.
Workaround: There is no workaround.
• CSCee24263
Symptoms: A PVC may be inactive and may not come up.
Conditions: This symptom is observed when a VC is deleted or removed and you try to recreate the
same VC.
Workaround: Save the configuration and reload the router.
• CSCee24389
Symptoms: MPLS packets that are larger than 1496 bytes and that have the DF bit set are dropped,
even when the tag-switching mtu 1508 command is enabled on all interfaces.
Conditions: This symptom is observed on a Cisco 12000 series that is configured as an MPLS PE
router, when all of the following conditions are met:
– MPLS VPN packets enter through a 4-port Gigabit Ethernet (GE) ISE line card and leave from
an ATM OC-3 Engine 0 line card
– Output CAR is configured on the ATM interface.
– You reload the router, reload the ATM line card, or enter the shutdown command followed by
the no shutdown command on the ATM interface.
Workaround: There are two workarounds:
– Disable output CAR on the ATM interface and reboot the router.
– Disable output CAR on the ATM interface and change the MTU or tag-switching MTU for the
ATM subinterface.
• CSCee28754
Symptoms: GE interfaces on an EPA-GE/FE-BBRD line card may drop tag packets.
Conditions: The problem is reported on a Cisco 12000 series running Cisco IOS Release 12.0(23)S5
only when you perform an OIR of an EPA-GE/FE-BBRD to install or remove additional
EPA-3GE-SX/LH line cards.
Workaround: Perform a second OIR of the line card.
• CSCee29196
Symptoms: When a Cisco 10000 series does not have a specific route for both end points of a voice
connection, the Cisco 10000 series duplicates one-way audio only for the specific route that
populates its routing table, not for the end point that uses the default route from the routing table.
Conditions: This symptom is observed on a Cisco 10000 series that is runs Cisco IOS
Release 12.0(25)S3 and that is configured with a PRE-1.