01-30-2004 10:54 AM - edited 03-02-2019 01:15 PM
Hi
I have T1 link to internet on my 3640 route. It is configured with all time slots 1-24. Upon looking at show interface output, it says the "Available Bandwidth 1152 kilobits/sec". What could be the reason.
My serial interace config and show interface output are as per below.
I am curious to know the reason and want to make sure if I have full T1.
thanks and regards
Rakesh
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EG624BGR#sh inter ser 0/0
Serial0/0 is up, line protocol is up
Hardware is QUICC with integrated T1 CSU/DSU
Description: Internet connection to AT&T - ckt id xxxx
Internet address is xx.xx.xx.xx/30
MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
reliability 255/255, txload 15/255, rxload 184/255
Encapsulation PPP, loopback not set
Keepalive set (10 sec)
LCP Open
Open: IPCP
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 6d23h
Input queue: 0/75/1738/0 (size/max/drops/flushes); Total output drops: 315
Queueing strategy: weighted fair
Output queue: 0/1000/64/315 (size/max total/threshold/drops)
Conversations 0/158/256 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
**** Available Bandwidth 1152 kilobits/sec ****
5 minute input rate 1111000 bits/sec, 136 packets/sec
5 minute output rate 92000 bits/sec, 88 packets/sec
40097316 packets input, 3009557303 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
39033933 packets output, 726165775 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
==============
interface Serial0/0
description Internet connection to AT&T - ckt id DHEC538546
ip address xx.xx.xx.xx 255.255.255.252
ip access-group worm in
no ip redirects
ip accounting output-packets
encapsulation ppp
no ip mroute-cache
service-module t1 timeslots 1-24
no cdp enable
Solved! Go to Solution.
01-30-2004 04:59 PM
01-30-2004 03:04 PM
as per bandwidth calculations you are getting same bandwidth what you have taken..
184*1536/255 = 5 minute input rate 1111000 bits/sec
15*1536/255 = 5 minute output rate 92000 bits/sec
01-30-2004 04:00 PM
Thanks for responding.
I think, your calulation translates the two different type of same value. And that matches as expected. What i am thinking is, why it says "Available Bandwidth 1152 kilobits/sec" instead of T1 bw i.e.1536kb.
The no. 1152 translates to 18 timeslots (64 x 18 = 1152). So i am thinking if the provider has only configured 18 timeslots instead of 24 at their end.
regds
Rakesh
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01-30-2004 04:59 PM
02-02-2004 09:23 AM
thanks for the post. This explains and clears my question exactly.
regds
Rakesh
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