In Cisco terms ANSI = Annex-d on the PortMaster.
In Cisco terms Cisco = LMI on the PortMaster.
>What about CCITT?
I believe that this is another standard. The PortMaster only supports LMI
and Annex-d
>What is better Annex-d or LMI?
Good question. Most frame-relay setups I've seen use LMI, but Annex-D is
newer. I've heard some of the older telco frame-relay switches don't
support Annex-D, but practically speaking it dosen't really matter. You
can have LMI on one PVC, Annex-d on another PVC in the same cloud and
you'll still be ok.
The only difference on the PortMaster from a configuration point of view is
that for LMI you will do a :
set W1 LMI 10
and for Annex-D you will do a:
set W1 Annex-d 10
The '10' is the polling interval which is how often polls are sent between
the switch and the Portmaster. 3 exchanges of polls and the link is
considered established. Faster polls will bring the link up faster.
Generally, the telco will tell you what to set your polling interval to,
and usually it is once every 10 seconds.
To watch the LMI/Annex-d polling from the portmaster issue the following
commands:
set console
set deb 0x51
To turn off
reset console
set debug
For more information see our Technial Notes about frame-relay.
http://www.livingston.com/Tech/Technotes/Routing/index.shtml#Frame
--- jstorms@livingston.com Diplomacy: The art of saying good doggie while seaching for a big rock.