AIS Router AI2524 - Manual (Page 322)

AI2524 Router Card User’s Manual
Page 13-6 August 1997
2524UM
The router decodes the reply and configures itself automatically. If
more than one reply is received, the router configures itself according
to the most recent reply, accommodating intelligent switches that can
handle multiple formats simultaneously.
Using an intelligent retry scheme, LMI autosense attempts to deter
mine the LMI type every N391 interval if initially unsuccessful. De-
fault is 60 seconds, which is 6 keep exchanges at 10 seconds each.
To make the typically transparent LMI autosense process visible to the
user, turn on "debug frame lmi.” Every N391 interval, the user will se
three rapid status queries coming from the serial interface.
Configuring LMI Autosense
No configuration options are provided. You can turn off LMI au
tosense by explicitly configuring an LMI type. When the LMI type is
written into NVRAM, the next time the router powers up, LMI au
tosense is inactive.
Explicitly Configure the LMI
If you want to configure the LMI and thus deactivate LMI autosense,
complete the tasks. The tasks in the first two sections are required if
you choose to configure the LMI.
z Set the LMI Typ
z Set the LMI Keepalive Interval
z Set the LMI Polling and Timer Intervals
Set the LMI Type
If the router or access server is attached to a public data network
(PDN), the LMI type must match the type used on the public network.
Otherwise, the LMI type can be set to suit the needs of your privat
Frame Relay network.
In interface configuration mode, set one of three types of LMIs—
ANSI T1.617 Annex D, Cisco, or ITU-T Q.933 Annex A:
1. Set the LMI type.
frame-relay lmi-type {ansi | cisco | q933a}
2. Write the LMI type to NVRAM. Use the command form that is
appropriate to your router platform.
copy running-config destination