Cisco OL-4015-08 Bedienungsanleitung Seite 135

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487
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Caveats
Resolved Caveats—Cisco IOS Release 12.0(32)S14
Conditions: This symptom occurs with all the serial links configured on a Channelized
OC48-DS3/Engine 3 card. Serial interfaces flap, bringing down BGP/OSPF for no apparent reason.
No configs were done.
Workaround: There is no workaround.
CSCsx48975
Symptoms: Channelized interfaces on a Cisco 7500 series router may face txacc loss and emit
interface “not transmitting” messages.
Conditions: The symptoms are observed when, for example:
1. Flapping the E1 controller; or
2. Flapping the channelized interfaces continuously.
3. Performing an OIR of the other slot. 4. Adding and removing the E1 channel groups.
Workaround:
1. Delete the channel-group and reconfigure it.
2. Use the command test rsp stall. This will get back the txaccs and the router will do a MEMD
recarve. The expected downtime is just 2-3 seconds.
CSCsx70889
Cisco devices running affected versions of Cisco IOS Software are vulnerable to a denial of service
(DoS) attack if configured for IP tunnels and Cisco Express Forwarding.
Cisco has released free software updates that address this vulnerability.
This advisory is posted at http://www.cisco.com/warp/public/707/cisco-sa-20090923-tunnels.shtml.
CSCsx96402
Symptoms: The LC (E3/E5) crashes upon executing certain show controller... commands 3-4
times.
Conditions: The symptom is observed with scale configurations on MLPPP, MFR, serial interfaces
with features like VRF, VPN, basic QOS, ACL, and netflow.
Workaround: There is no workaround.
CSCsy33936
Symptoms: The CEF process is hogging the CPU because of many incomplete fibidbs, because CEF
was disabled and re-enabled.
Conditions: This symptom is observed in a scale testbed when an RPR+ switchover is performed.
Workaround: There is no workaround.
CSCsy82104
Symptoms: I/O memory leaks after several days. The output of the E1 serial interface may be
blocked as well.
Conditions: The symptoms are observed on a Cisco 7200 series router that is running Cisco IOS
Release 12.0(33)S and when an E1 interface serial flaps. The QoS outgoing service-policy needs to
be provisioned on this serial interface.
Workaround: Remove the outgoing QoS service-policy from the flapped/blocked serial interface.
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