I have a chuck of the configuration of a AdTran router used to connect a remote site to our data center. Now I am just beginning in the enterprise world and some of this is new to me. Can someone explain the highlighted portions of this config to me? I don't understand what it is used for, or I haven't learned about it yet. I am googling it, but it is hard to get a definitive answer from other forums.
If you need to look up the router, it is an Adtran 1335 PoE with a T1 NIM installed. Thank you!
interface vlan 1
description Office LAN
ip address 10.40.43.1 255.255.255.0
no shutdown
!
!
interface t1 1/1
description Connection to PIP Network
tdm-group 1 timeslots 1-16 speed 64
no shutdown
!
interface modem 1/1
dialin
no shutdown
!
!
interface fr 1 point-to-point
frame-relay lmi-type cisco
qos-policy out MCI_QoS
no shutdown
cross-connect 1 t1 1/1 1 frame-relay 1
!
interface fr 1.190 point-to-point
frame-relay interface-dlci 170
ip address 162.181.125.152 255.255.255.252
