Cisco Cisco IOS Software Release 12.4(23)
435
Caveats for Cisco IOS Release 12.4
OL-7656-15 Rev. J0
Resolved Caveats—Cisco IOS Release 12.4(10b)
The first command will display all the RTP pipes. The second command will display a summary of
all the memory with a “GraphIt” identifier. There should be approximately two blocks with the
“GraphIt Client” identifier for each non-RSETUP RTP pipe.
all the memory with a “GraphIt” identifier. There should be approximately two blocks with the
“GraphIt Client” identifier for each non-RSETUP RTP pipe.
If there are significantly more than two “GraphIt Client” blocks per RTP pipe, then SNASwitch is
leaking memory.
leaking memory.
Wide-Area Networking
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CSCek56250
Symptoms: A router may reload while executing the show ppp multilink command.
Conditions: This symptom is observed when a multilink bundle goes down while the output is being
generated.
generated.
Workaround: There is no workaround.
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CSCek59078
Symptoms: An L2TPv3 session is established when voluntary tunneling is configured and both peers
have corresponding configurations. However, after configuring the pseudowire on UUT virtual-PPP
interface, sessions on UUT and peer are UP, but “virtual-PPP1 is up, line protocol is down.”
have corresponding configurations. However, after configuring the pseudowire on UUT virtual-PPP
interface, sessions on UUT and peer are UP, but “virtual-PPP1 is up, line protocol is down.”
Conditions: For this symptom to occur, the virtual-ppp interface was previously deleted using the
no interface virtual-ppp n command, and then reinstated using the interface virtual-ppp n
command.
no interface virtual-ppp n command, and then reinstated using the interface virtual-ppp n
command.
Workaround: Be certain that the virtual-PPP interface has never been unconfigured using the no
interface virtual- ppp n configuration command since the router was booted.
interface virtual- ppp n configuration command since the router was booted.
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CSCek62099
Symptoms: When PPP Multilink is enabled over a PPP over Ethernet (PPPoE) session, outbound
packets are incorrectly sent without PPPoE headers. This causes them to be dropped.
packets are incorrectly sent without PPPoE headers. This causes them to be dropped.
Conditions: This symptom is observed in Cisco IOS version 12.4 on all software- forwarding router
platforms. It only affects packets which are not multilink encapsulated (due to the bundle only
having a single link).
platforms. It only affects packets which are not multilink encapsulated (due to the bundle only
having a single link).
Workaround: Either disable multilink PPP, or use the ppp multilink fragment delay interface
command to force multilink headers to be applied to all outbound packets.
command to force multilink headers to be applied to all outbound packets.
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CSCir00712
Symptoms: When a LAC receives fragmented data traffic over an L2TP tunnel, the IP layer
reassembles the packets and routes them over the wrong interface instead of processing them locally.
reassembles the packets and routes them over the wrong interface instead of processing them locally.
Conditions: This symptom is observed on a Cisco router that runs Cisco IOS Release 12.3(14)T
when fragmented L2TP data traffic is received on the LAC from the LNS over the L2TP tunnel. The
symptom is release-independent.
when fragmented L2TP data traffic is received on the LAC from the LNS over the L2TP tunnel. The
symptom is release-independent.
Workaround: There is no workaround.
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CSCsb24255
Symptoms: A router may generate the following error message and a MALLOC failure may occur:
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.