Specifications

1251
Cross-Platform Release Notes for Cisco IOS Release 12.0S
OL-1617-14 Rev. Q0
Resolved Caveats—Cisco IOS Release 12.0(28)S
Conditions: This symptom is observed on a Cisco router that is configured with an ATM interface
when a packet that contains a virtual circuit descriptor (VCD) that is out range is passed on to the
ATM driver of the interface in order to be transmitted.
Workaround: There is no workaround.
• CSCed29275
Symptoms: IP VRF interfaces that are configured Frame Relay may not work. That is, locally
generated and forwarded packets that are received on these interfaces may not be processed
correctly.
Conditions: This symptom is observed on a Cisco 7500 series.
Workaround: Enter the shutdown command followed by the no shutdown command on the Frame
Relay subinterfaces that have a VRF configured.
• CSCed40110
Symptoms: When a router running Cisco IOS Release 12.0S, 12.1, 12.2, or 12.2T receives a
multilink packet with Protocol Field Compression (PFC) applied, the packet is not interpreted
correctly, and is subsequently rejected. The following debug messages appear in the debug trace
when the debug ppp negotiation command is enabled:
MLP: I UNKNOWN(192) [Not negotiated] id 0 len 0
LCP: O PROTREJ [Open] id 2 len 95 protocol MLP
Conditions: This symptom is observed when the router requests PFC during Link Control Protocol
(LCP) negotiations and the peer applies PFC to its outbound packets. PFC is enabled by default on
asynchronous serial interfaces, it is disabled by default on other interfaces.
Workaround: In Cisco IOS Release 12.2 and 12.2T, PFC can be disabled using the ppp pfc local
forbid interface configuration command. In Release 12.0S and 12.1, there is no workaround.
• CSCed52817
Symptoms: Even though you remove the frame-relay fragment command from an active RP, the
command may be back in the configuration after a switchover.
Conditions: This symptom is observed on a Cisco 10000 series, but not on a Cisco 7500 series and
Cisco 12000 series.
Workaround: After you have removed the frame-relay fragment, frame-relay interface-queue, or
frame-relay ip rtp command from a map class on the active RP, reset the standby RP to enable the
standby RP to read the configuration changes.
• CSCed59264
Symptoms: L3 broadcasts such as EIGRP are not transmitted on Frame Relay PVC bundles.
Conditions: This symptom is observed when EIGRP or OSPF is unable to set up routes that are
learnt via an interface that has a Frame Relay PVC bundle configured.
Workaround: There is no workaround.