Help needed Cisco 3660

Unanswered Question
Dec 29th, 2003
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Greetings Cisco Experts,

I’m trying to connect two Cisco 3660 back-back using VWIC-2MFT-E1 (RJ 48 cross over)



Cisco 3660(VWIC-2MFT-E1)=====(VWIC-2MFT-E1)Cisco3660


One of the VWIC-2MFT-E1 is in the 2W slot and the other is in the 2FE-2W slot

But for some reasons both of them are not talking to each other and I’m getting

A lot of slip alarms on the controllers



Following is the simple config of both routers


Router 1



controller E1 5/0

shutdown

framing NO-CRC4

clock source free-running

!

controller E1 5/1

framing NO-CRC4

clock source internal

channel-group 1 timeslots 1-31

!

!

interface FastEthernet0/0

no ip address

shutdown

duplex auto

speed auto

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial4/0

no ip address

shutdown

!

interface Serial4/1

no ip address

shutdown

!

interface Serial4/2

no ip address

shutdown

!

interface Serial4/3

no ip address

shutdown

!

interface FastEthernet5/0

no ip address

shutdown

duplex auto

speed auto

!

interface FastEthernet5/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial5/1:1

ip address 10.160.63.22 255.255.255.252

!

router eigrp 1

network 10.160.63.20 0.0.0.3

auto-summary

no eigrp log-neighbor-changes

!





E1 5/1 is up.

Applique type is Channelized E1 - balanced

No alarms detected.

alarm-trigger is not set

Version info Firmware: 20000922, FPGA: 15

Framing is NO-CRC4, Line Code is HDB3, Clock Source is Internal.

Current port master clock: local osc on this network module

Data in current interval (191 seconds elapsed):

0 Line Code Violations, 0 Path Code Violations

191 Slip Secs, 0 Fr Loss Secs, 0 Line Err Secs, 0 Degraded Mins

191 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs





Router 2 Config




controller E1 5/1

framing NO-CRC4

channel-group 1 timeslots 1-31

!

!

interface FastEthernet0/0

no ip address

shutdown

duplex auto

speed auto

!

interface FastEthernet0/1

no ip address

shutdown

duplex auto

speed auto

!

interface Serial2/0

no ip address

shutdown

clockrate 2015232

!

interface Serial2/1

no ip address

shutdown

!

interface Serial2/2

no ip address

shutdown

!

interface Serial2/3

no ip address

shutdown

!

interface Serial5/1:1

ip address 10.160.63.21 255.255.255.252

!

router eigrp 1

network 10.160.63.20 0.0.0.3

auto-summary

no eigrp log-neighbor-changes



E1 5/1 is up.

Applique type is Channelized E1 - balanced

No alarms detected.

alarm-trigger is not set

Version info Firmware: 20000922, FPGA: 15

Framing is NO-CRC4, Line Code is HDB3, Clock Source is Line.

Current port master clock: recovered from controller 5/1

Data in current interval (868 seconds elapsed):

1 Line Code Violations, 0 Path Code Violations

0 Slip Secs, 0 Fr Loss Secs, 1 Line Err Secs, 0 Degraded Mins

1 Errored Secs, 0 Bursty Err Secs, 0 Severely Err Secs, 0 Unavail Secs



Thanks in Advance

aht


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thisisshanky Mon, 12/29/2003 - 23:07
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For the VWICs I think you need to configure the channel group command with the speed option specified as follows.


channel-group 1 timeslots 1-31 speed 64


This will use each DS0 channel at 64K. Default value is 56Kbps if you do not specify the speed option.


Hope that helps!



UN-FALD Tue, 12/30/2003 - 21:36
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thisisshanky,

Thank you very much for the quick reply

Yes I already configured that as 64 but still didn't work.

In one of the manual I found that VWIC-2MFT-E1 has

built in DSU but not CSU,so I'm not sure whether

can I connect them back to back,or should I connect to it a third party CSU to give clocking to it.



Any ideas will be highly appreciated


aht

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