11-02-2005 05:03 AM - edited 03-03-2019 10:52 AM
Hi,
I have just installed an NM-1T3/E3 in a cisco 2821. I need to activate this interface. Would anyone know the appropriate command?
Thanks!
Solved! Go to Solution.
11-02-2005 07:57 AM
Did you make sure that your /30 address falls withing the appropriate range? (i.e. 192.168.1.5 255.255.255.252, as 192.168.1.4 /30 is the network address and 192.168.1.7 /30 is the broadcast). Sounds basic, but we all have miscalculated when subnetting.
HTH,
Dean
11-02-2005 05:36 AM
The NM-1T3/E3 does not show up in running config by default. You can do a 'show version' to ensure that the router recognizes the card. To activate the card you need at a minimum:
Router> enable
Router# configure terminal
Router(config)# card type t3
Router(config)# controller t3
You can also set the framing, lincode, and cable legnth as follows;
Router(config-controller)# framing {c-bit | m23}
Router(config-controller)# linecode {ami | b8zs | hdb3}
Router(config-controller)# cablelength
Router(config-controller)# clock source {internal | line}
These are the basics for activating the NM-1T3/E3.
HTH,
Dean
11-02-2005 07:32 AM
Hi Dean,
That seems to have worked, thanks so much!
However, I now have the problem that I cannot assign a /30 address to this interface. I have both ip classless and ip subnet-zero turned on, but still no luck.
Anyone come across this before?
11-02-2005 07:57 AM
Did you make sure that your /30 address falls withing the appropriate range? (i.e. 192.168.1.5 255.255.255.252, as 192.168.1.4 /30 is the network address and 192.168.1.7 /30 is the broadcast). Sounds basic, but we all have miscalculated when subnetting.
HTH,
Dean
11-02-2005 08:46 AM
Rather embarrassingly you are completely correct! I double-checked my calculations and was trying to enter the network address.
Many thanks for your help and advice!
Eavan
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