Cisco Cisco IOS Software Release 12.4(23) 릴리즈 노트
597
Caveats for Cisco IOS Release 12.4
OL-7656-15 Rev. J0
Resolved Caveats—Cisco IOS Release 12.4(7d)
flex_dsprm_voice_connect: voice tdm connect failed
Conditions: This symptom is observed on a Cisco router that processes a large number of calls with
a short call duration via an E1 PRI.
a short call duration via an E1 PRI.
Workaround: There is no workaround.
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CSCse05777
Symptoms: A router may reload unexpectedly when you configure more multilink interfaces than
the maximum number that the router can support. The router should not reload but should generate
an error message.
the maximum number that the router can support. The router should not reload but should generate
an error message.
Conditions: This symptom is observed on any Cisco router that imposes a limit on the number of
multilink interfaces.
multilink interfaces.
Workaround: Do not exceed the maximum number of multilink interfaces.
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CSCse12198
Symptoms: Individual B-channels on the primary T1 in the NFAS group sometimes go OOS for no
reason.
reason.
Conditions: This symptom is observed when connected to a Cisco PGW that is running Cisco IOS
Release 9.3(2). The Cisco AS5400 is connected to the Cisco PGW that is running RLM in the
Signaling/Nailed mode.
Release 9.3(2). The Cisco AS5400 is connected to the Cisco PGW that is running RLM in the
Signaling/Nailed mode.
Also, sometimes ISDN service goes OOS, and also channel states goes to 5 which is maintenance
pending.
pending.
Workaround: When this happens, put ISDN service can be put back in service manually for
individual CIC, but channel state cannot manually be put back in service unless the whole serial
interface is bounced. This cannot be done when there is other traffic on the other b-channels.
individual CIC, but channel state cannot manually be put back in service unless the whole serial
interface is bounced. This cannot be done when there is other traffic on the other b-channels.
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CSCse34162
Symptoms: A Cisco router hangs after 5 to 10 minutes of passing traffic over a dialer interface.
Conditions: This symptom has been observed on a Cisco router running Cisco IOS Release 12.4(8)
with PPP Multilink configured on a dialer interface and traffic is passing.
with PPP Multilink configured on a dialer interface and traffic is passing.
Workaround: There is no workaround. A reboot is required to recover.
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CSCse78652
Symptoms: The queuing mode on multilink interfaces erroneously defaults to fair-queuing instead
of FIFO, causing distributed Cisco Express Forwarding (dCEF) to fail.
of FIFO, causing distributed Cisco Express Forwarding (dCEF) to fail.
Conditions: This symptom is observed on a Cisco 7500 series and occurs for all multilink interfaces.
However, the symptom is platform-independent.
However, the symptom is platform-independent.
Workaround: There is no workaround.
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CSCse81069
Symptoms: Unconfiguring the isdn service b_channel command is not taking effect. The command
is not removed from the running configuration.
is not removed from the running configuration.
Conditions: This symptom occurs when configuring the isdn service b_channel command to a state
other than the default value of 0 on the ISDN D channel.
other than the default value of 0 on the ISDN D channel.
Workaround: To remove the command, shut down the T1/E1 controller first and then unconfigure
the command under the D channel serial interface.
the command under the D channel serial interface.
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CSCse98867
Symptoms: A router may reload when a multilink bundle goes down while packets are flowing.