Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Community Member

CISCO 1750 Serial interface line protocol not coming UP

After upgrading bandwidth from 128 Kbps to 256 Kbps, serial interface showing "Serial0 is up, line protocol is down" , is there any chance of issue with Framing config mismach or what all possibilities can be.

Kindly help me out to resolve the same issue....

Regards,

Rajesh Raghavan

2 REPLIES

Re: CISCO 1750 Serial interface line protocol not coming UP

Hi rajesh,

Yes there is chance of framing mismatch if  younare using framed circuit.

please verify both end for same no. of timeslots

regards

Mahesh

Silver

Re: CISCO 1750 Serial interface line protocol not coming UP

Hi Rajesh,

I assume your topology is something like this:

router ---- Telco CSU/DSU ----- Telco network/Internet

If the Telco increased just the bandwidth, I would expect that they didn't change the framing...

What is your original configuration and what did you change after the upgrade?

Marco

304
Views
0
Helpful
2
Replies
CreatePlease to create content