READ Free Dumps For Cisco- 400-101
| Question ID 18505 | Which Cisco IOS XE process administers routing and forwarding?
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| Option A | Forwarding manager
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| Option B | Interface manager
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| Option C | Cisco IOS
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| Option D | Host manager
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| Correct Answer | C |
Explanation Explanation: Some of the processes are listed in the table below: Process Purpose Affected FRUs SubPackage Mapping Host Manager Provides an interface between the IOS process and many of the information-gathering functions of the underlying platform kernel and operating system. RP (one instance per RP) SIP (one instance per SIP) ESP (one instance per ESP) RPControl SIPBase ESPBase Interface Manager Provides an interface between the IOS process and the per-SPA interface processes on the SIP. RP (one instance per RP) SIP (one instance per SIP) RPControl SIPBase IOS The IOS process implements all forwarding and routing features for the router. RP (one per software redundancy instance per RP). Maximum of two instances per RP. RPIOS Forwarding Manager Manages the downloading of configuration to each of the ESPs and the communication of forwarding plane information, such as statistics, to the IOS process. RP (one per software redundancy instance per RP). Maximum of two instances per RP. ESP (one per ESP) RPControl ESPBase Reference: http://www.cisco.com/c/en/us/td/docs/routers/asr1000/configuration/guide/chassis/asrswcfg /Software_Packaging_Architecture.html
| Question ID 18506 | Refer to the exhibit.
A Cisco Catalyst 6500 Series Switch experiences high CPU utilization. What can be the
cause of this issue, and how can it be prevented?
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| Option A | The hardware routing table is full. Redistribute from BGP into IGP.
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| Option B | The software routing table is full. Redistribute from BGP into IGP.
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| Option C | The hardware routing table is full. Reduce the number of routes in the routing table.
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| Option D | The software routing table is full. Reduce the number of routes in the routing table.
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| Correct Answer | C |
Explanation Explanation: FIB TCAM Exception - If you try to install more routes than are possible into the FIB TCAM you will see the following error message in the logs: CFIB-SP-STBY-7-CFIB_EXCEPTION : FIB TCAM exception, Some entries will be software switched %CFIB-SP-7-CFIB_EXCEPTION : FIB TCAM exception, Some entries will be software switched. %CFIB-SP-STBY-7-CFIB_EXCEPTION : FIB TCAM exception, Some entries will be software switched. This error message is received when the amount of available space in the TCAM is exceeded. This results in high CPU. This is a FIB TCAM limitation. Once TCAM is full, a flag will be set and FIB TCAM exception is received. This stops from adding new routes to the TCAM. Therefore, everything will be software switched. The removal of routes does not help resume hardware switching. Once the TCAM enters the exception state, the system must be reloaded to get out of that state. You can view if you have hit a FIB TCAM exception with the following command: 6500-2#sh mls cef exception status Current IPv4 FIB exception state = TRUE Current IPv6 FIB exception state = FALSE Current MPLS FIB exception state = FALSE When the exception state is TRUE, the FIB TCAM has hit an exception. The maximum routes that can be installed in TCAM is increased by the mls cef maximum- routes command. Reference: https://supportforums.cisco.com/document/59926/troubleshooting-high-cpu- 6500-sup720