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ATM0/0/0.777

what does these two int mean?

ATM0/0/0.777 is up, line protocol is up

Hardware is ATM AIM E1

ATM0/0/0 is up, line protocol is up

Hardware is ATM AIM E1

Description:-att-MPLS-E1-2M-1.6M-ePVC.777

5 REPLIES
Blue

Re: ATM0/0/0.777

ATM0/0/0 is the physical interface. The physical circuit is terminated by this interface.

ATM0/0/0.777 is a virtual subinterface that maps to an ATM pvc.

The subinterfaces are typically used in a hub and spoke topology. The hub router's ATM interface will terminate the physical circuit that goes to the service provider. Subinterfaces are built under that physical interface to map a PVC that faces each spoke.

HTH

Victor

New Member

Re: ATM0/0/0.777

thanks for reply

so if i need to see Load on circuit or errros

on circuit which interface should i check

ATM00/0/0

Thanks

Mahesh

Blue

Re: ATM0/0/0.777

Mahesh:

It depends on what exactly you are troubleshooting.

If you are interested in looking at errors and utilization on the physical interface, you would view the ATM0/0/0 interface.

If you wanted to examine the utilization, etc, on a specific PVC, you would view the virtual interface.

Victor

New Member

Re: ATM0/0/0.777

Thanks for reply

so PVC is always mapped to virtual inetrface?

I call telco they told me CIR at there end is 2700KB i was told to check on my end

i had these 3 inetrfaces

ATM0/IMA0.777 is up, line protocol is up

Hardware is ATM AIM IMA

Description: -att-MPLS-2xT1.IMA-ATM-3M-2.7M-ePVC.777

MTU 4470 bytes, BW 3000 Kbit, DLY 20000 usec,

ATM0/0/0 is up, line protocol is up

Hardware is ATM AIM T1

Description: FLR-MJ01-att-MPLS-2xT1.IMA1-ATM-3M-2.7M

MTU 4470 bytes, sub MTU 4470, BW 1544 Kbit, DLY 20000 usec,

ATM0/0/1 is up, line protocol is up

Hardware is ATM AIM T1

Description: att-MPLS-2xT1.IMA2-ATM-3M-2.7M

MTU 4470 bytes, sub MTU 4470, BW 1544 Kbit, DLY 20000 usec,

Now to check CIR which interface should i look for from above 3 ?

Many thanks

Mahesh

New Member

Re: ATM0/0/0.777

Thanks for reply

so PVC is always mapped to virtual inetrface?

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