Cisco Cisco IOS Software Release 12.2
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Caveats for Cisco IOS Release 12.2
OL-3513-16 Rev. G0
Resolved Caveats—Cisco IOS Release 12.2(3a)
Workaround: Configure the isdn sending-complete command on the serial interface. This action
forces ISDN to send a “sending complete” information element in the outgoing setup, so the switch
will simply reply with a “Call Proceeding” message.
forces ISDN to send a “sending complete” information element in the outgoing setup, so the switch
will simply reply with a “Call Proceeding” message.
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A Cisco 3600 series router that is running Cisco IOS Release 12.2(1a) reloads with a bus error after
an ISDN BRI outgoing call is sent from a Cisco 3600 router to an ISDN switch. This condition
occurs when the Cisco 3600 router sends “SETUP” messages on the BRI port and receives
“SETUP_ACK” and “CALL_PROC/w PI=8” messages. There is no workaround
an ISDN BRI outgoing call is sent from a Cisco 3600 router to an ISDN switch. This condition
occurs when the Cisco 3600 router sends “SETUP” messages on the BRI port and receives
“SETUP_ACK” and “CALL_PROC/w PI=8” messages. There is no workaround
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Some ISDN calls may not be cleared when the dial idle-timeout period expires. The calls end
normally when the user exits or when a shutdown interface configuration command is issued. There
is no workaround.
normally when the user exits or when a shutdown interface configuration command is issued. There
is no workaround.
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On a Cisco AS5300 access server that is running Cisco IOS Release 12.2(3a) or 12.2(4)T, all voice
calls that are running ISDN signaling may fail to process a disconnect, which leads to a buffer leak.
There is no workaround.
calls that are running ISDN signaling may fail to process a disconnect, which leads to a buffer leak.
There is no workaround.
Resolved Caveats—Cisco IOS Release 12.2(3a)
Cisco IOS Release 12.2(3a) is a rebuild release for Cisco IOS Release 12.2(3). The caveats in this section
are resolved in Cisco IOS Release 12.2(3a) but may be open in previous Cisco IOS releases.
are resolved in Cisco IOS Release 12.2(3a) but may be open in previous Cisco IOS releases.
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CSCdu24249
A Cisco router with a Cisco 2600 or 3600 hardware Virtual Private Network (VPN) module may
pause indefinitely when is processing a burst of large packets (more than 2 KB). This condition
occurs when the show running-config privileged EXEC command is issued while the router is
passing a moderate amount of large-packet data. This condition is more likely to occur when double
authentication is used (when esp-sha-hmac and ah-sha-hmac are used).
pause indefinitely when is processing a burst of large packets (more than 2 KB). This condition
occurs when the show running-config privileged EXEC command is issued while the router is
passing a moderate amount of large-packet data. This condition is more likely to occur when double
authentication is used (when esp-sha-hmac and ah-sha-hmac are used).
A change that was introduced in Cisco IOS Release 12.2(3)T fixes the indefinite pause but
introduces a different problem. In Cisco IOS Release 12.2(3)T, the driver stops processing packets
that are queued for processing when all the jumbo buffers are in use. The router does not pause
indefinitely, but the VPN module stops processing packets. In either case, the router must be
reloaded to correct the condition.
introduces a different problem. In Cisco IOS Release 12.2(3)T, the driver stops processing packets
that are queued for processing when all the jumbo buffers are in use. The router does not pause
indefinitely, but the VPN module stops processing packets. In either case, the router must be
reloaded to correct the condition.
There is no workaround.
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Inbound calls from a channel-associated signaling (CAS) peer to a Cisco VG200 telephony voice
gateway that are bound for an IP phone may experience audio dropouts. The called party will hear
approximately the first half second of audio and then lose one to three seconds. After that time, the
audio will return, and no further issues occur with the call after the initial dropout. Outbound calls
do not experience this condition.
gateway that are bound for an IP phone may experience audio dropouts. The called party will hear
approximately the first half second of audio and then lose one to three seconds. After that time, the
audio will return, and no further issues occur with the call after the initial dropout. Outbound calls
do not experience this condition.
Workaround: Run Cisco IOS Release 12.1(5)T9.
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CSCdu69124
A Cisco AS5300 universal access server that is running Cisco IOS Release 12.2(1), 12.2(2b), or
12.2(2.4) may see the %SYS-3-INVMEMINT and %SYS-2-MALLOCFAIL error messages and
cdapi_create_raw_msg tracebacks. There is no workaround.
12.2(2.4) may see the %SYS-3-INVMEMINT and %SYS-2-MALLOCFAIL error messages and
cdapi_create_raw_msg tracebacks. There is no workaround.
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