Chapter 16


1:

What is dynamic mapping?

A1:

Using Inverse ARP to request the next hop protocol address for a specific DLCI .

2:

For Router-frame, map the IP address 10.0.0.1 to DLCI = 100, using the IETF encapsulation.

A2:

 Router-frame(config-if)#  frame-relay map ip 10.0.1.1 100 broadcast ietf  

3:

Can you use IP unnumbered with Frame Relay?

A3:

You can, but you must use point-to-point subinterfaces and static routes or dynamic routing for your traffic to get routed.

4:

Can you ping your own interface address? Can you ping one spoke router from another?

A4:

In point-to-point interfaces, you can. In point-to-multipoint interfaces, you cannot, unless you configure Frame Relay map.

5:

What happens to deleted subinterfaces?

A5:

Deleted subinterfaces show up as deleted until the router is reloaded.

6:

In point-to-point configurations that are running EIGRP, type the command for Router-frame that prevents all routing updates for interface Serial3/0:0.64?

A6:

 Router-frame(config)#  passive-interface Serial3/0:0.64  

7:

Configure the Frame Relay broadcast queue for Router-framesubinterface S3/0:0.71 with queue size 100, byte rate 1200, and packet rate 120.

A7:

 Router-frame(config-if)#  frame-relay broadcast-queue 100 1200 120  

8:

Can you configure the Cisco router as a DCE?

A8:

You can, if you use the frame-relay intf-type [dce nni] command in the general configuration mode.

9:

Under the interface Serial3/0:0.200, what is the backup delay command with enable delay = 5 seconds and disable delay = 10 seconds?

A9:

 Router-frame(config-if)#  backup delay 5 10  

10:

For Router-frame and interface Serial1, what is the command for TCP header compression, which is active only for the destinations that are sending compressed headers?

A10:

 Router-frame(config-if)#  frame-relay ip tcp header-compression passive  

11:

For Router-frame and interface Serial4/2:0.200, define that FRF9 payload compression will be performed on CSA 3.

A11:

 Router-frame(config-if)#  frame-relay payload-compression FRF9 stac csa 3  

12:

Enable the multicast routing in Router-frame.

A12:

 Router-frame(config)#  ip multicast-routing  

13:

In Router-frame, for interface Serial4/2:0.100, define the upper limit of the rate for traffic shaping to 128000.

A13:

 Router-frame(config-if)#  traffic-shape rate 128000  

14:

What Frame Relay timer defines the Cisco autosense feature? How do you configure it?

A14:

N391. At every N391 interval, LMI autosenses the LMI type. The default is 6 attempts in 60 seconds. It is configurable with the command frame-relay lmi-n391dte value.




Troubleshooting Remote Access Networks CCIE Professional Development
Troubleshooting Remote Access Networks (CCIE Professional Development)
ISBN: 1587050765
EAN: 2147483647
Year: 2002
Pages: 235

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