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New Member

E1 bandwidth

Can Router 3640-IOS 12.0(7) support E1 bandwidth? When we connect E1 bandwidth by two 2500 or 2600, they are working fine but when we connect 3640 to either 2500 or 2600, it fails.

Please help!


Re: E1 bandwidth

What kind of card is in the 3640 ? Can tou paste in a sh interface serial x and a sh version

New Member

Re: E1 bandwidth

Below is our "tested 3640 router" info.

1. WIC 2T card

2. sh int

Serial0/1 is up, line protocol is down

Hardware is DSCC4 Serial

Internet address is

MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation PPP, loopback not set

Keepalive set (10 sec)

LCP Listen


Last input 00:04:58, output 00:00:18, output hang never

Last clearing of "show interface" counters 22:11:38

Input queue: 0/75/0 (size/max/drops); 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)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

10745 packets input, 150430 bytes, 0 no buffer

Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

6 input errors, 3 CRC, 2 frame, 0 overrun, 0 ignored, 1 abort

35791 packets output, 501074 bytes, 0 underruns

0 output errors, 0 collisions, 4081 interface resets

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions

DCD=up DSR=up DTR=up RTS=up CTS=up

3. sh version

Cisco Internetwork Operating System Software

IOS (tm) 3600 Software (C3640-I-M), Version 12.0(7)XK1, EARLY DEPLOYMENT RELEASE


TAC:Home:SW:IOS:Specials for info

Copyright (c) 1986-2000 by cisco Systems, Inc.

Compiled Thu 16-Mar-00 22:09 by phanguye

Image text-base: 0x600088F0, data-base: 0x608C2000

ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (f


ROM: 3600 Software (C3640-I-M), Version 12.0(7)XK1, EARLY DEPLOYMENT RELEASE SOF

TWARE (fc1)

Router uptime is 22 hours, 4 minutes

System returned to ROM by power-on

System image file is "flash:c3640-i-mz.120-7.XK1"

cisco 3640 (R4700) processor (revision 0x00) with 27648K/5120K bytes of memory.

Processor board ID 26604484

R4700 CPU at 100Mhz, Implementation 33, Rev 1.0

Bridging software.

X.25 software, Version 3.0.0.

2 FastEthernet/IEEE 802.3 interface(s)

2 Serial(sync/async) network interface(s)

DRAM configuration is 64 bits wide with parity disabled.

125K bytes of non-volatile configuration memory.

8192K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102


Re: E1 bandwidth

I think your code rev is not high enough see this URL

New Member

Re: E1 bandwidth

I upgrade IOS to 12.1(1)T suggested by the link but we still can not make it work. We found out when we connect to E1 by WIC 1T card and IOS 12.0(7) version, connection is up!

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