Cisco Cisco IOS Software Release 12.0 S
1916
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(24)S
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You deencapsulate the interface by using the no encapsulation frame- relay interface
configuration command, and you unconfigure the interface by entering the no map-class
frame-relay global configuration command.
configuration command, and you unconfigure the interface by entering the no map-class
frame-relay global configuration command.
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While you unconfigure FRTS, FR encapsulation occurs, and the traffic load is still high so that
the shaping function is activated and outbound packets on per-virtual circuit (VC) queues are
throttled.
the shaping function is activated and outbound packets on per-virtual circuit (VC) queues are
throttled.
Workaround: Avoid the situation in which all of the above-mentioned conditions take place
concurrently. For example, when an FR link is configured on a VIP interface and you require traffic
shaping, use distributed FRTS, or unconfigure FRTS while user traffic is low so as not to activate
the shaping function.
concurrently. For example, when an FR link is configured on a VIP interface and you require traffic
shaping, use distributed FRTS, or unconfigure FRTS while user traffic is low so as not to activate
the shaping function.
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CSCdy56074
Symptoms: Alignment errors may occur on a Route Switch Processor (RSP) when IP packets that
are destined for the RSP are processed, and the following error message is generated:
are destined for the RSP are processed, and the following error message is generated:
%ALIGN-3-CORRECT: Alignment correction made at 0x6054B844 reading 0x63354DD6
The alignment errors do not affect the functionality of the RSP.
Conditions: This symptom is observed on an RSP that is installed in a Cisco 7500 series router that
is running Cisco IOS Release 12.2(12.6)T or a later release when the RSP receives Layer 2
Tunneling Protocol (L2TP) or Layer 2 Forwarding (L2F) control packets on an Ethernet interface
that has the encapsulation isl subinterface configuration command enabled.
is running Cisco IOS Release 12.2(12.6)T or a later release when the RSP receives Layer 2
Tunneling Protocol (L2TP) or Layer 2 Forwarding (L2F) control packets on an Ethernet interface
that has the encapsulation isl subinterface configuration command enabled.
Workaround: Do not enable the encapsulation isl subinterface configuration command.
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CSCdy56616
Symptoms: Disabling the frame-relay interface-dlci interface configuration command on an
interface while traffic is passing through a permanent virtual circuit (PVC) on the same interface
may cause a router to reload.
interface while traffic is passing through a permanent virtual circuit (PVC) on the same interface
may cause a router to reload.
Conditions: This symptom is observed only on a Cisco 7200 series router.
Workaround: Disable IP fast switching.
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CSCdy63771
Symptoms: Virtual Private Network (VPN) routing and forwarding (VRF) may not function on a
High-Speed Serial Interface (HSSI) port adapter.
High-Speed Serial Interface (HSSI) port adapter.
Conditions: This symptom is observed on a Cisco 7500 series router.
Workaround: Remove and reconfigure the affected subinterface on the HSSI port adapter.