Cisco Cisco IOS Software Release 12.4(23)
892
Caveats for Cisco IOS Release 12.4
OL-7656-15 Rev. J0
Resolved Caveats—Cisco IOS Release 12.4(3)
•
CSCef58201
Symptoms: The CEF-Dialer feature fails to add an adjacency for a virtual-access1 CEF interface
because the IP route is installed after the feature attempts to add the adjacency.
because the IP route is installed after the feature attempts to add the adjacency.
Conditions: This symptom is observed during a test on a Cisco router that runs Cisco IOS
Release 12.3 or interim Release 12.3(10.3)T.
Release 12.3 or interim Release 12.3(10.3)T.
Workaround: Configure a static host entry for the neighbor in the routing table, pointing to the Dialer
interface:
interface:
ip route prefix mask 255.255.255.255 Dialer1
For the prefix mask argument, enter the IP address of the neighbor.
•
CSCeg03958
Symptoms: A router may crash while performing an SNMP walk on VPDN-related MIB Objects.
SNMP get and set operations function fine.
SNMP get and set operations function fine.
Conditions: This symptom is observed on a Cisco router that is configured with MLP interfaces.
Workaround: Reload the router and do not perform an SNMP walk. Instead use get operations.
•
CSCeg15248
Symptoms: Uninteresting traffic is blocked even after the link is up.
Conditions: This symptom is observed only on an interface that is configured for dialer DTR.
Workaround: There is no workaround.
•
CSCeg22171
Symptoms: Calls fail to connect when they are switched from the primary D channel to the backup D
channel.
channel.
Conditions: This symptom is observed when you either unplug the cable or shut down the controller
of the primary D channel.
of the primary D channel.
Workaround: There is no workaround.
•
CSCeg22533
Symptoms: A signal-only call fails when an INVALID message is generated because a B-channel
IDB is not found.
IDB is not found.
Conditions: This symptom is observed when ISDN PRI QSIG Voice Signaling is configured.
Workaround: There is no workaround.
•
CSCeg42148
Symptoms: Attempts to change a B-channel service state by entering the isdn service nfas-int
number b_channel number {state {0 | 1 | 2} [hard | immediate | soft]} command appear to succeed
but the service state does not change.
number b_channel number {state {0 | 1 | 2} [hard | immediate | soft]} command appear to succeed
but the service state does not change.
Conditions: This symptom is observed when a voice application uses a B-channel. The output of the
show isdn service detail command shows a locale of ISDN_NEAR_END_APP.
show isdn service detail command shows a locale of ISDN_NEAR_END_APP.
Workaround: There is no workaround.
•
CSCeg55098
Symptoms: When an ISDN switch deactivates layer 2, a router immediately activates layer 2. The
output of the debug isdn q921 command shows that the router activates layer 2 within 6
milliseconds:
output of the debug isdn q921 command shows that the router activates layer 2 within 6
milliseconds:
ISDN BR0 Q921: User RX <- DISCp sapi=0 tei=65