Need Help Interpreting Sho int cmd

win2k8

Can anybody breakdown what all the different outputs line in a sho int s0 or e0 cmd mean? Or find me the link that says where to find out this information? Its not covered in my cisco press books.... And i'm just really curious as to what all the lines means and stuff in terms of related to troubleshooting. I know the first one pretty is easy either up/down, up/up, down/down, etc... its all the rest of the output i need help understanding what it all means?

Thanks before hand,

win2k4

Paul Boz

Serial1/0 is up, line protocol is up
  Hardware is M8T-X.21
  Internet address is 172.12.124.2/24
  MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation FRAME-RELAY, crc 16, loopback not set
  Keepalive set (10 sec)
  Restart-Delay is 0 secs
  LMI enq sent  30292, LMI stat recvd 30289, LMI upd recvd 0, DTE LMI up
  LMI enq recvd 0, LMI stat sent  0, LMI upd sent  0
  LMI DLCI 0  LMI type is ANSI Annex D  frame relay DTE
  Broadcast queue 0/64, broadcasts sent/dropped 1/0, interface broadcasts 0
  Last input 00:00:00, output 00:00:01, output hang never
  Last clearing of "show interface" counters 3d12h
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations  0/1/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1158 kilobits/sec
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     45814 packets input, 2670513 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     40814 packets output, 1209486 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up

R3#

Hardware is just that - the type of hardware.
Internet address is whatever IP address is assigned.
MTU is the MTU value, which is changable, BW is the bandwidth of the interface, delay is a metric used by various routing protocols.
Reliability is also a metric, txload and rxload are the transmit and reply load. It's an EIGRP metric.
Encapsulation is just that, the encapsulation type. CRC is I believe the cyclic redundancy check value.
Keepalive is the keepalive value.
restart-dalay is just that

everything else are just conters and stuff. What you see is dependent on what protocol you're running, what kind of interface it is, and how it's configured.