03-12-2009 12:37 PM - edited 03-04-2019 03:54 AM
Hi again
I need to test a T1 going from RT1 to csu/dsu.. now It shows down/down... when I had a telco tech put a hardloop on it I see up/down.. what could be the problem
the second issue that I have is that on the other end of the router I am doing the same testing RT2 with hard loopset by the telco on the other side.. RT2 is down/down.. when we put hardloop we still get down /down..
can you help isolate the issue.. on RT1 and RT2...
HERE IS THE HOW IT LAYS OUT
RT1---CSU/DSU--SMARTJACK--TELCO---SMARTJACK--CSU/DSU--RT2
Thanks
03-12-2009 12:54 PM
Telco should be isolating the issues for you.
When telco loops your equipment you should see (looped) besides the interface.
You can test your interface with a loopback plug.
Run over to your CSU/DSU and push the little loop button? Do you see a loop? Look on both sides.
You can also loop the CSU yourself.
Change your encap to HDLC so you can send pings. Can you loop your interface?
Check this document out: http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a754b.shtml
03-12-2009 01:09 PM
pkurdziel
Thanks for the reply
I am doing this remotely
RT1 already have 0/0 up/up
now I am working w/ 0/1:0
here is what I did
config t
router ospf 1
passive-interface 0/1:0
end
wr
config t
int s0/1:0
no encap
end
wr
so when he I do show int s0/1:0
it shows down/down
when the tech tech the loopout it show up/down
03-12-2009 03:31 PM
It looks like you have an internal controller.
When telco has a loop up check to see if they put it in the wrong place. Do a show controller t1 0/1.
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