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New Member

Line clock settings 2Mb leased line

Hi

Believe it or not but a providor in Norway delivers not a clock signal in a point to point 2 Mb leased line.

What is now the best way to configure the clock setting on both routers ?

Normaly the config is; clock source internal But must you set that on both sides or only on one? And how do know that than both clocks are in sync ?

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Silver

Re: Line clock settings 2Mb leased line

Hello Rene,

use clock source internal on one side and clock source line on the other side.

This should be fine.

>> And how do know that than both clocks are in sync ?

there is no direct way to see this you need to consider interface statistics over time if some type of interface errors don't increment over time clocking should be correct.

see

http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1915.html

for T1/E1

http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a758d.shtml

Hope to help

Giuseppe

2 REPLIES
Hall of Fame Super Silver

Re: Line clock settings 2Mb leased line

Hello Rene,

use clock source internal on one side and clock source line on the other side.

This should be fine.

>> And how do know that than both clocks are in sync ?

there is no direct way to see this you need to consider interface statistics over time if some type of interface errors don't increment over time clocking should be correct.

see

http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1915.html

for T1/E1

http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a758d.shtml

Hope to help

Giuseppe

New Member

Re: Line clock settings 2Mb leased line

Hi Giuseppe

Thanks for your time and the answer. It is what I expected, but now I am sure.

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