From: Lord, Chris (chris.lord@lorien.co.uk)
Date: Wed Jun 30 2004 - 14:47:06 GMT-3
Thanks to everyone for their suggestions. I've sometimes found that the clear frame inv doesn't work reliably in the lab or on my practice kit. I think a reboot strategy will be the one to go for next time!
C.
-----Original Message-----
From: Brian McGahan [mailto:bmcgahan@internetworkexpert.com]
Sent: 30 June 2004 16:54
To: Tom Martin; Group Study
Cc: Lord, Chris
Subject: RE: Unused DLCIs in the real lab
This only works if it is not an error in InARP. If you issue a
"show frame-relay map" and you have mappings that point to 0.0.0.0, it
is an error in inverse-arp. This error occurs when inverse-arp is in
the process of resolving a remote device, and is then disabled. In
order to resolve this case you must reboot. If the problem is that
there are unwanted dynamic unicast mappings then you can just issue the
"clear frame inarp" command and it will remove them.
BTW reloading your devices is highly recommended, as it may
expose holes in your network that were not evident until the reload
occurs.
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987 x 705
Outside US: 775-826-4344 x 705
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Tom Martin
> Sent: Wednesday, June 30, 2004 9:10 AM
> To: Group Study
> Cc: Lord, Chris
> Subject: RE: Unused DLCIs in the real lab
>
> Chris,
>
> You can just clear the dynamically learned mappings after entering "no
> frame-relay inverse-arp". That will save time rebooting:
>
>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/
fw
> an_r/frcmds/wrffr1.htm#1017673
>
> Note that the command is "clear frame-relay inarp", the Cisco command
> reference docs is wrong.
>
> -- Tom
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Lord, Chris
> Sent: Wednesday, June 30, 2004 5:36 AM
> To: Group Study
> Subject: Unused DLCIs in the real lab
>
>
> Quite often in the lab scenarios we are asked only to use the dlci's
> marked on the diagram, e.g. use no frame inverse-arp. However, the
base
> config often has the interface ip addresses specified and frame
> encapsulation and no shutdown already defined so dynamic mapping has
> already kicked-in before you ever touch the rack. Once you have
applied
> your final config is it best practice to reboot the routers to clear
out
> all of the junk we don't want. Doing this might loose you valuable
time.
> If we don't do it will we loose marks or run the risk of false
> connectivity if we we just leave the mappings there? Thoughts!
>
> Regards,
>
> Chris.
>
>
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