I am new to this world of router so bear with me. I have 1700 with a wic-1dsu-t1 interface at one end and a Adtran TSC at the other. The clock is at the Adtran and the Teleco is telling me it is running fast thus dropping of the link from time to time. They said to change end for the clock but can not find out how to program clock in router and help or web page would be appreicated. Thank's
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1700 with wic-1dsu-t1
- Thread starter rvw
- Start date
computerhighguy
IS-IT--Management
go into the interface
conf t
interface s0 (or whatever the interface is)
clock rate xxxxxx
router(config-if)#clock rate ?
Speed (bits per second)
1200
2400
4800
9600
14400
19200
28800
32000
38400
56000
57600
64000
72000
115200
125000
128000
148000
192000
250000
256000
384000
500000
512000
768000
800000
1000000
2000000
4000000
8000000
<300-4000000> Choose clockrate from list above
It is what it is!!
__________________________________
A+, Net+, I-Net+, Certified Web Master, MCP, MCSA, MCSE, CCNA, CCDA, and few others (I got bored one day)
conf t
interface s0 (or whatever the interface is)
clock rate xxxxxx
router(config-if)#clock rate ?
Speed (bits per second)
1200
2400
4800
9600
14400
19200
28800
32000
38400
56000
57600
64000
72000
115200
125000
128000
148000
192000
250000
256000
384000
500000
512000
768000
800000
1000000
2000000
4000000
8000000
<300-4000000> Choose clockrate from list above
It is what it is!!
__________________________________
A+, Net+, I-Net+, Certified Web Master, MCP, MCSA, MCSE, CCNA, CCDA, and few others (I got bored one day)
If your ISP is telling you to change the clock source on your C1700 to external (DTE) that means that the Adtran TSC is providing clocking (DCE).
Setup your T1 WIC module with the following commands:
config term
!
int s0
service-module t1 clock source line
!
end
This will force your C1700 to act as the DTE (receives clocking from the line), and your Adtran is providing clocking (DCE).
You wouldn't change the clock rate command for this situation because you have an integrated CSU/DSU which is doing TDM w/ 24 timeslots (64k in width) to achieve T1 speed (1536k/s). If you were going router -> router without CSU/DSU's then you'd have to adjust the clock rate but since there are CSU/DSU's involved no need to do that.
-Rainman
Setup your T1 WIC module with the following commands:
config term
!
int s0
service-module t1 clock source line
!
end
This will force your C1700 to act as the DTE (receives clocking from the line), and your Adtran is providing clocking (DCE).
You wouldn't change the clock rate command for this situation because you have an integrated CSU/DSU which is doing TDM w/ 24 timeslots (64k in width) to achieve T1 speed (1536k/s). If you were going router -> router without CSU/DSU's then you'd have to adjust the clock rate but since there are CSU/DSU's involved no need to do that.
-Rainman
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