Specifications

1107
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S3
Conditions: This symptom is observed when the no access-list command fails while a nonvolatile
generation (NVGEN) occurs.
Workaround: There is no workaround.
• CSCef89470
Symptoms: After you enter the shutdown interface configuration command followed by the no
shutdown interface configuration command on an active GE interface or after you reload the router
while an GE interface is active, the correct ARP entry is missing from the interface.
Conditions: This symptom is observed on a Cisco 10000 series that runs a Cisco IOS release later
than Release 12.0(23)S.
Workaround: There is no workaround.
• CSCef90783
Symptoms: The output counter on the interface of a PE router that faces a P router generates almost
twice the value that is should provide.
Conditions: This symptom is observed in the following MPLS topology in which Cisco 12000 series
routers are connected via interfaces of Engine 3 line cards:
A CE router (CE1) connects to a PE router (PE1) that connects, in turn, to a P router. This P router
connects to another PE router (PE2) that, in turn, connects to another CE (CE2) router.
The symptom occurs when a VRF ping is generated from PE1 to the VRF interface of PE2, that is,
the interface that is connected to CE2. The output counter on PE2 generates incorrect values.
Workaround: There is no workaround.
• CSCeg03606
Symptoms: Multicast VPN (MVPN) traffic does not resume.
Conditions: This symptom is observed on a Cisco 12000 series that runs a Cisco IOS interim release
for Release 12.0(30)S and that functions as a PE router that is configured for MVPN.
Workaround: Enter the clear ip mroute command.
• CSCeg05681
Symptoms: A CSC OIR may cause all line cards in a router to enter the disabled state and the
standby RP to reload continuously.
Conditions: The symptom is observed on a Cisco 12000 series that has dual PRPs and that runs a
Cisco IOS interim release for Release 12.0(30)S.
Workaround: There is no workaround.
• CSCeg12649
Symptoms: On a Cisco router that functions as an egress PE router in an MPLS VPN network, after
the customer-facing line card is reloaded, the ingress line card that receives an incoming VPN label
with a destination with a glean adjacency (which requires an ARP request) without a BGP session
may not properly complete the adjacency, causing traffic to be dropped.
Conditions: This symptom is mostly observed with static recursive route configurations. You can
recover from the symptom by manually pinging the interface of the CE router from the adjacent PE
router.
Workaround: Configure static ARP entries for the next hop router in the static recursive routes.
• CSCeg19635
Symptoms: The PXF engine on a Cisco 10000 series may crash, causing traffic through the router
to be interrupted temporarily.