CISCO7#show interfaces serial 0/1
Serial0/1 is up, line protocol is down
  Hardware is QUICC with integrated T1 CSU/DSU
  Internet address is 192.168.0.2/30
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation HDLC, loopback not set
  Keepalive set (10 sec)
  Last input 00:27:54, output 00:00:01, output hang never
  Last clearing of "show interface" counters 00:19:26
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 2 giants, 0 throttles
     22 input errors, 1 CRC, 19 frame, 0 overrun, 0 ignored, 1 abort
     124 packets output, 5100 bytes, 0 underruns
     0 output errors, 0 collisions, 41 interface resets
     0 output buffer failures, 0 output buffers swapped out
     5 carrier transitions
     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up



ip subnet-zero
ip cef
!
!
no ip domain-lookup
ip domain-name ncxti.com
ip host cons 10.255.255.1
ip name-server 204.244.252.35
ip audit notify log
ip audit po max-events 100
partition flash 2 8 8
!
!
!
!
interface Loopback0
 ip address 10.255.255.1 255.255.255.0
!
interface Tunnel1
 no ip address
!
interface Ethernet0/0
 ip address 10.0.0.251 255.255.255.0
 ip access-group test in
 ip access-group test out
 ip accounting output-packets
 ip accounting mac-address input
 ip accounting mac-address output
 ip accounting access-violations
 half-duplex
interface Serial0/0
 no ip address
 no ip proxy-arp
 no ip mroute-cache
 no fair-queue
 invert txclock
!
interface Ethernet0/1
 ip address 172.20.1.145 255.255.255.248
 ip access-group test in
 ip access-group test out
 full-duplex
!
interface Ethernet0/1.1
!
interface Serial0/1
 ip address 192.168.0.2 255.255.255.252
 no ip proxy-arp
 no ip mroute-cache
 no fair-queue
 service-module t1 clock source internal
 service-module t1 lbo -15db
!
interface Ethernet1/0
 ip address 172.20.1.161 255.255.255.248
 full-duplex
!
interface Ethernet2/0
 ip address 172.20.1.185 255.255.255.248
 shutdown
 half-duplex
!

....