Re: [c-nsp] synchronisation

2012-04-23 Thread Edward Salonia
Are you possibly referring to SyncE?

http://www.cisco.com/en/US/prod/collateral/routers/ps9853/white_paper_c11-500360_ns523_Networking_Solutions_White_Paper.html

-Original Message-
From: ujjwal maghaiya ujjwal...@hotmail.com
Sender: cisco-nsp-bounces@puck.nether.netDate: Mon, 23 Apr 2012 10:26:53 
To: j...@west.net; cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] synchronisation


hi, 
thanks for the reply
but i dont think frequecy and time synchronisation are not the same thing. 
Specially in the field of telecommunication, radio part, frequecy 
synchronisation has great significance than time.
 
 
 
 
 
 
 

 

 Date: Sun, 22 Apr 2012 21:10:52 -0700
 From: j...@west.net
 To: cisco-nsp@puck.nether.net
 Subject: Re: [c-nsp] synchronisation
 
 On 4/22/12 8:56 PM, ujjwal maghaiya wrote:
 
  what is the type of synchronisation in CISCO devices,
  Time synchronisationo or Frequency synchronisation or both??? 
 
 Depends on the context.
 
 NTP is time synchronization. (Clock/calendar time)
 
 T1 clocking is frequency synchronization.
 
 BGP/IGP synchronization is an entirely different animal.
 
 And from a practical standpoint, time synchronization and frequency
 synchronization are essentially the same thing. Frequency is nothing
 more than a measure of events per unit time.
 
 --
 Jay Hennigan - CCIE #7880 - Network Engineering - j...@impulse.net
 Impulse Internet Service - http://www.impulse.net/
 Your local telephone and internet company - 805 884-6323 - WB6RDV
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[c-nsp] synchronisation

2012-04-22 Thread ujjwal maghaiya

 
what is the type of synchronisation in CISCO devices,
Time synchronisationo or Frequency synchronisation or both???   
  
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Re: [c-nsp] synchronisation

2012-04-22 Thread Jay Hennigan
On 4/22/12 8:56 PM, ujjwal maghaiya wrote:

 what is the type of synchronisation in CISCO devices,
 Time synchronisationo or Frequency synchronisation or both??? 
   

Depends on the context.

NTP is time synchronization.  (Clock/calendar time)

T1 clocking is frequency synchronization.

BGP/IGP synchronization is an entirely different animal.

And from a practical standpoint, time synchronization and frequency
synchronization are essentially the same thing.  Frequency is nothing
more than a measure of events per unit time.

--
Jay Hennigan - CCIE #7880 - Network Engineering - j...@impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV
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Re: [c-nsp] synchronisation

2012-04-22 Thread ujjwal maghaiya

hi, 
thanks for the reply
but i dont think frequecy and time synchronisation are not the same thing. 
Specially in the field of telecommunication, radio part, frequecy 
synchronisation has great significance than time.
 
 
 
 
 
 
 

 

 Date: Sun, 22 Apr 2012 21:10:52 -0700
 From: j...@west.net
 To: cisco-nsp@puck.nether.net
 Subject: Re: [c-nsp] synchronisation
 
 On 4/22/12 8:56 PM, ujjwal maghaiya wrote:
 
  what is the type of synchronisation in CISCO devices,
  Time synchronisationo or Frequency synchronisation or both??? 
 
 Depends on the context.
 
 NTP is time synchronization. (Clock/calendar time)
 
 T1 clocking is frequency synchronization.
 
 BGP/IGP synchronization is an entirely different animal.
 
 And from a practical standpoint, time synchronization and frequency
 synchronization are essentially the same thing. Frequency is nothing
 more than a measure of events per unit time.
 
 --
 Jay Hennigan - CCIE #7880 - Network Engineering - j...@impulse.net
 Impulse Internet Service - http://www.impulse.net/
 Your local telephone and internet company - 805 884-6323 - WB6RDV
 ___
 cisco-nsp mailing list cisco-nsp@puck.nether.net
 https://puck.nether.net/mailman/listinfo/cisco-nsp
 archive at http://puck.nether.net/pipermail/cisco-nsp/
  
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