[j-nsp] Cisco -- Juniper

[K.K. Verma]

Hi Usman,

If you are copying the running config of Cisco for Juniper E1 interface, 
please make sure which PIC you are going to use in Juniper side:
4xE1 or 10xCE1 or 10xCHE1 (IQ PIC)

For both 4xE1 and 10xCE1 PICs  : timeslots range of Cisco's 1-31 is 
equivalent to default E1 of Juniper. No need to configure time-slots.
If you want, can configure it for 2-32.

For 10xCHE1 IQ PIC, you need to make E1 partitions.See Juniper Documents 
  for details.
For Juniper E1 PICs, time-slots range is 1-32, where time-slots 1 is 
reserved for framing byte.

For the current config of Cisco, duplicate config on Juniper's E1 should be:

interfaces {
     e1-1/0/0 {
          unit 0 {
               family inet {
                  address 172.16.2.253/24;
             }
         }
     }

You may configure other parameters, but not needed, because:

Default encapsulation is: PPP
Default time-slots : 2-32
Default Framing : g704
Default MTU : 1504

Cisco is also configured to work with PPP encapsualtions, g704 framing 
and time-slots 1-31, which is full framed E1.

Thanks,
KK Verma


nicolas.fevrier at free.fr wrote:
> Selon Usman Tahir <ukhant at apollo.com.pk>:
> 
> Hey Usman,
>  
> 
>>PS: in some of the access sites certain timeslots are not utilised meaning
>>in some sites only 2 timeslots are used, I`ll appreciate the help.
>>controller E1 1/0
>>channel-group 1 timeslots 1-31
> 
> 
> AFAIK, there is a "trick" here since Juniper use a different
> range for the slot numbering (1-32) than Cisco does (0-31).
> 
> e1-0/0/0 {
>         mtu 4470;
>         clocking external;
>         encapsulation cisco-hdlc;
>         e1-options {
>             timeslots 2-3;   <--- to connect to slot 1-2 on your cisco.
>             framing g704-no-crc4; 
>         }
>         unit 0 {
>             family inet {
>                 address x.x.x.x/y;
> 		}
> 
> Rest of the config is quite straightforward.
> 
> HTH,
> 
> Nicolas.
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