Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements
Webcast-Catalyst9k
New Member

Local Router Shows Line Protocol DOWN, DOWN & Remote Router Shows UP, UP

Hi all.  We have an ASR 9000 that has just been connected with fiber to a Comcast router to give us more bandwidth.  When they test their end, they are showing a line protocol of up, up and they are able to ping our side of the router.  We are showing down, down on our end and cannot ping their side.  What are some reasons that this could happen?  It has left me baffled.  Thanks.

1 ACCEPTED SOLUTION

Accepted Solutions
VIP Purple

Re: Local Router Shows Line Protocol DOWN, DOWN & Remote Router

Please check again the physical connectivity or make no shut on your interface.

If line is down and protocol is down means there is a connectivity problem.

Reagrds

3 REPLIES
VIP Purple

Re: Local Router Shows Line Protocol DOWN, DOWN & Remote Router

Please check again the physical connectivity or make no shut on your interface.

If line is down and protocol is down means there is a connectivity problem.

Reagrds

Purple

Local Router Shows Line Protocol DOWN, DOWN & Remote Router Show

Hi,

having one side down and the other up is possible if you have a switch in between but I wonder how they can ping your interface which is down/down because in this case it can't reply.

Regards

Alain

Don't forget to rate helpful posts.

Don't forget to rate helpful posts.
New Member

Local Router Shows Line Protocol DOWN, DOWN & Remote Router Show

Yeah that's what didn't make sense because they were directly connected with fiber.  We tried to shut down the ports and then no shut them earlier this week and that didn't work.  We were able make it out to the site where our ASR is with extra jumpers and sfp's in hand.  We are using two connections.  One came up from a simple move to another point (same configurations on both ports).  We moved the other one and it did not come up.  We replaced the sfp with the exact same model (Cisco SX) and it came up.  For some reason the ASR was having trouble getting everything together.  Thank you guys for the replies.

173
Views
5
Helpful
3
Replies
CreatePlease to create content