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Home > Archive > CCNA > January 2004 > Configuring Frame Relay
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Configuring Frame Relay
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| DrWatsonJr 2004-01-12, 8:56 pm |
| I am unclear on the dynamic/static nature when configuring frame relay. In what scenarios should the frame relay mapping and DLCI configuration be configured statically, and when should it be left to be configured dynamically? I hope this is making sense...
For instance, I know when using subinterfaces, the command "frame-relay interface-dlci x" is used to manually configure the DLCI on the interface. I also believe that Inverse ARP will be involked, therefore, there's no need for the "frame-relay map ip x.x.x.x dlci broadcast" command.
On links that have only 1 PVC, should the mapping and the DLCI be hard coded or should it be left to LMI and Inverse ARP?
Lastly, on a multipoint interface, should the DLCI be hard coded and a static mapping be configured? Or again, should this be left to LMI and Inverse ARP?
I ask this because, I am seeing several different configurations all of which are contradicting.
Thanks in advance. | |
| DrWatsonJr 2004-01-12, 9:21 pm |
| I hate to reply to my own post here but...
It almost seems like that on point to point interfaces (whether they be subinterfaces or physical interfaces), the "frame-relay interface-dlci dlci#" command is used and on multipoint interfaces, the "frame-relay map ip x.x.x.x dlci# broadcast" command is used. Does this sound accurate?
Thanks | |
| DrWatsonJr 2004-01-12, 9:59 pm |
| Hi, it's me again haha
Ok, here's the deal. The following is a quote taken out of the CCIE Bruce Caslow book regarding this issue...
"Frame-relay interface-dlci statements are useless in a physical interface only configuration because the whole purpose of the frame-relay interface-dlci command is to associate a particular DLCI to a particluar sub interface"
Now, I've got a CCNA book from Todd Lammle who's very first example of configuring frame-relay uses the frame-relay interface-dlci command on a physical interface.
Should I be worried about this exam now?? | |
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