Specifications

Total Access 600 Series System Manual Section 4.2 T1 TDM UIG

The default value is ANNEX D (ANSI).

L2 PROTOCOL (T1[0] - FRE) > CONFIG > POLLING FREQUENCY (5-30)

This parameter is the interval that the unit polls the Frame Relay switch using the maintenance protocol

selected. The unit is required to poll the Frame Relay switch periodically to determine whether the link is

active. The value is in seconds and ranges from

5 TO 30 seconds with a default of 10 SECONDS.

L2 PROTOCOL (T1[0] - FRE) > CONFIG > DLCI MAPPING

This menu allows each DLCI to be mapped to a particular Frame Relay maintenance protocol. Each

protocol parameter can be individually configured for each DLCI. By factory default, the DLCI map is

empty.

When empty and a maintenance protocol other than static is used, the unit will poll the switch to determine

which DLCIs are active. These active DLCIs will attempt to determine the IP addresses on the other end of

the virtual circuit using Inverse ARP (IARP). If there is a response, the network learned will be added to

the router tables and the virtual circuit will be treated as an unnumbered interface. Bridge connections are

made using bridge group 1. When more than one DLCI mapping is listed, the unit will try to match the

DLCIs learned from the Frame Relay switch with the DLCI values in the map. If there is a match, the

protocols specified in the map are used. However, if an active DLCI is not in the list, it looks for an entry

that has 0 in the DLCI field. This entry is considered the default entry to use when no match occurs. If this

default entry is not present, the unit falls back to using IARP to determine the protocols to use with that

particular virtual circuit. If a static maintenance protocol is used, at least one DLCI mapping must be

specified.

L2 PROTOCOL (T1[0] - FRE) > CONFIG > DLCI MAPPING > NUM

Displays the index number in the DLCI mapping table.

L2 PROTOCOL (T1[0] - FRE) > CONFIG > DLCI MAPPING > ACTIVE

When this parameter is set to YES (def), the mapping is used to determine the protocols used. If set to NO,

the unit will ignore the virtual circuit with this DLCI.

STATIC (NO SIG)

This should be selected when there is no Frame Relay switch in the circuit. The

DLCIs are assigned in the DLCI Mapping and must be the same for the device it

will communicate with.

To insert a new profile, press the I key when over the Num column. A new inserted profile

will always be set up with the default parameters. To copy parameters from an old profile

to this newly inserted profile, use the copy (C) and paste (P) keys. Entire configuration

trees can be copied with this method.

To delete an unused profile, use the D key when the cursor is over the number in the Num

column. Once deleted, the profile is gone permanently.