Specifications

1094
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S4
• CSCei07556
Symptoms: The PPP protocols flap on a 64K-port of an interface of a 1-port channelized
OC-12/STM-4 (DS1/E1) ISE line card that is configured for CoS and that is congested.
Conditions: This symptom is observed when two Cisco 12000 series are connected back-to-back,
when the routers are connected via 1-port channelized OC-12/STM-4 (DS1/E1) ISE line cards, and
when you send real-time traffic.
Workaround: Change the QoS output policy to prevent traffic from being for longer than 10 seconds
and enable keepalive packets to time out.
Further Problem Description: The symptom does not occur when you do not send real-time traffic.
• CSCei07946
Symptoms: When the active rate for a destination PE router is evenly distributed at 4 pps for
20 flows and the active rate for a destination CE router is evenly distributed at 4 pps for 19 flows,
one flow is reported at twice that rate (that is, 8 pps).
Conditions: This symptom is observed on a Cisco 12000 series that functions in a MVPN VRF-Lite
environment with 20 multicast streams that have a single sustained cell rate (SCR) and that have the
pps rate evenly distributed across all streams.
Workaround: There is no workaround.
• CSCei12771
Symptoms: All traffic with a 0 label plus another label is dropped by a 3-port Gigabit Ethernet egress
ISE line card.
Conditions: This symptom is observed on a Cisco 12000 series that runs Cisco IOS
Release 12.0(31)S.
Workaround: There is no workaround.
• CSCei15701
Symptoms: The active PRP pauses indefinitely after it changes from standby to active.
Conditions: This symptom is observed when the redundant PRPs are configured for RPR+ mode,
the router has two APS-protected CHOC12 line cards, the router has mVPNs configured, and the
router runs Cisco IOS Release 12.0(28)S3.
Workaround: There is no workaround.
• CSCei22697
Symptoms: Some MVPN tunnels are mapped to an incorrect VRF forwarding table.
Conditions: This symptom is observed on a Cisco router that is configured for data MDT groups.
Workaround: There is no workaround.
• CSCei27448
Symptoms: A router may crash while displaying the output of the show ip pim mdt bgp command.
Conditions: This symptom is observed when withdraws for a MDT source group are received by
PIM from BGP while you enter the show ip pim mdt bgp command.
Workaround: There is no workaround. To reduce the chance of the router crashing, change the
screen-length argument in the terminal length screen-length command to 0. Doing so prevents the
router from pausing between multiple output screens. (The default of the screen-length argument
is 24.)