I am trying to put up a loopback to my self by issueing the looback internal command but when I do so the interface shows up/down looped. Shouldnt it show up up looped? Do I need to do somehting else?
pcf-ipfr#sh int pos2/0
POS2/0 is up, line protocol is down (looped)
Hardware is Packet over Sonet
Internet address is 172.x.x.x.x.xx.x.x
MTU 4470 bytes, BW 155000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation PPP, LCP REQsent, crc 32, loopback set (internal)
Keepalive set (10 sec)
Scramble enabled
Last input 00:00:00, output never, output hang never
Last clearing of "show interface" counters 00:12:57
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: Class-based queueing
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/205/256 (active/max active/max total)
Reserved Conversations 1/1 (allocated/max allocated)
Available Bandwidth 139500 kilobits/sec
30 second input rate 0 bits/sec, 0 packets/sec
30 second output rate 0 bits/sec, 0 packets/sec
217 packets input, 29697 bytes, 0 no buffer
Received 0 broadcasts, 1 runts, 0 giants, 0 throttles
0 parity
42 input errors, 68 CRC, 0 frame, 0 overrun, 0 ignored, 2 abort
195 packets output, 3986 bytes, 0 underruns
0 output errors, 0 applique, 4 interface resets
0 output buffer failures, 0 output buffers swapped out
1 carrier transitions
