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Slow file transfer over SCTP internode link using SCP command

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0

I am observing slow SCP file transfer over SCTP internode link after upgrading the lk-sctp version 1.0.17.
The internode link is just between 2 gateway nodes which are in Active and Standby modes and has no connection to Service Routers.

It takes > 3mins for transferring a file at the rate of 3MB/sec.

Whereas the same SCP command execution for the same file transfer over the non SCTP link is quick only ~~8 sec at the rate of 13 MB/sec.

File size - 762835531.

This scp command execution slowness over sctp link was not observed prior SCTP Upgrade.
The working lksctp version was 1.0.10.
Our OS version is RHEL 7.6
Please let me know what has changed in the lksctp latest version w.r.t to SCP file transfer.
Whether any SCTP settings or linux parameter needs to be fine tuned ?

Thanks,
Murali

rhel7 sctp

share|improve this question

asked Jun 10 at 3:13

user11221955user11221955

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  When scp is run with the verbose option -vvv see the following prints continuously.debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 What does these prints mean.Whether this is affecting the speed of scp file transfer.How to resolve this?
  
  – user11221955
  Jun 14 at 13:51
  
  

  
  
  
  

add a comment | 

0

I am observing slow SCP file transfer over SCTP internode link after upgrading the lk-sctp version 1.0.17.
The internode link is just between 2 gateway nodes which are in Active and Standby modes and has no connection to Service Routers.

It takes > 3mins for transferring a file at the rate of 3MB/sec.

Whereas the same SCP command execution for the same file transfer over the non SCTP link is quick only ~~8 sec at the rate of 13 MB/sec.

File size - 762835531.

This scp command execution slowness over sctp link was not observed prior SCTP Upgrade.
The working lksctp version was 1.0.10.
Our OS version is RHEL 7.6
Please let me know what has changed in the lksctp latest version w.r.t to SCP file transfer.
Whether any SCTP settings or linux parameter needs to be fine tuned ?

Thanks,
Murali

rhel7 sctp

share|improve this question

asked Jun 10 at 3:13

user11221955user11221955

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  When scp is run with the verbose option -vvv see the following prints continuously.debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 debug2: channel 0: rcvd adjust 131072 What does these prints mean.Whether this is affecting the speed of scp file transfer.How to resolve this?
  
  – user11221955
  Jun 14 at 13:51
  
  

  
  
  
  

add a comment | 

I am observing slow SCP file transfer over SCTP internode link after upgrading the lk-sctp version 1.0.17.
The internode link is just between 2 gateway nodes which are in Active and Standby modes and has no connection to Service Routers.

It takes > 3mins for transferring a file at the rate of 3MB/sec.

Whereas the same SCP command execution for the same file transfer over the non SCTP link is quick only ~~8 sec at the rate of 13 MB/sec.

File size - 762835531.

This scp command execution slowness over sctp link was not observed prior SCTP Upgrade.
The working lksctp version was 1.0.10.
Our OS version is RHEL 7.6
Please let me know what has changed in the lksctp latest version w.r.t to SCP file transfer.
Whether any SCTP settings or linux parameter needs to be fine tuned ?

Thanks,
Murali

rhel7 sctp

share|improve this question

asked Jun 10 at 3:13

user11221955user11221955

1

share|improve this question

asked Jun 10 at 3:13

user11221955user11221955

1

share|improve this question

asked Jun 10 at 3:13

user11221955user11221955

1

asked Jun 10 at 3:13

user11221955user11221955

1

asked Jun 10 at 3:13

user11221955user11221955

1