From: Pat Bodin (pbodin@xxxxxxxxx)
Date: Fri Apr 27 2001 - 03:23:41 GMT-3
Wayne,
This ilmi-pvc-discovery is configure on the interface. So, does this
basically work like frame-relay inverse-arp and you will receive your pvcs
(vpi, vcis) dynamically? Then can you goto sh atm map and look at what your
pvc are and configure them statically. Here is the description of the
subinterface command:
subinterface Discovered PVCs will be assigned to a configured
subinterface
whose number is equal to VPI
Does this mean that the pvc won't dynamically attach to the interface
without this command? If you configure all of your settings on the physical
interface, would you need this command?
Thanks for your help! I'm starting to get it!
Pat
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Wayne Gustavus
Sent: Friday, April 27, 2001 1:21 PM
To: 'Johnny Dedon'; 'Pat Bodin'; james.patterson@compsys.com.au
Cc: ccielab@groupstudy.com
Subject: RE: ATM-CLIP
the command you are looking for is: atm ilmi-pvc-discovery
this command is also helpful if you are told to setup a pvc on a
subinterface w/o putting any pvc commands on the interface (see bootcamp
lab; the command also requires the optional keyword 'subinterface')
Another comment on ilmi: This is the mechanism that is used to register
YOUR address with the ATM switch. The UNI client (ie. the router interface)
takes the 13 octet switch prefix it learns via ilmi and appends its own ESI
(6 octets) and SEL (1 octet) to create a full 20-octet NSAP that it sends
back to the switch via ilmi. This is how the ATM switch knows which
addresses are connected to it so that it can perform dynamic connection
setup (ie. assign the appropriate VPI/VCI) based on the called NSAP. Once
address registration is complete, you technically don't need ilmi anymore.
However, if the ATM switch hiccups and loses the address registration
(simulate with a shut/no shut on the LS1010), then the CLIP won't work b/c
the LS1010 won't know the NSAP of the connected port.
HTH,
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