bandwidth check? Post: 14442

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Top Forums UNIX for Dummies Questions & Answers bandwidth check? Post 14442 by Neo on Thursday 31st of January 2002 04:21:50 PM

01-31-2002

Administrator

Your question is interesting but a little ambiguous:

Do you want to verify the size of a circuit that you use alone?
Or, is the T1 shared with others?
Do you want to see if you get T1 throughput across the ISP to the backbone (differnet question)?
Do you want to see if congestion is such that you actuall get T1 speeds and where?

Remember that you are using IP.... .and TCP/IP tools can only verify TCP/IP related parameters..... a T1 congested with loads of IP traffic can perform like a 28 KB modem, right? So, TCP/IP tools have only limited value when discussing circuits and other wire-speed parameters.

The broader anwer to you question is that MANY people pay for T1 ISP connections but for many reasons cannot get the benefits of T1 because of:

How their ISP is configured?
How circuits and router ports are shared.
The underlying transport of the T1 (frame relay, ATM, etc.)
Poor ISP connections to the big I backbone.
Oversold pipes and ports by ISP (congestion problems).
Firewalls and proxy services slowing down the link.
etc. etc. etc.

As you might guess, it is necessary to be very configuration and topologically specific when discussing network performance issues......

Neo

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vxvoladmtask

vxvoladmtask(1M)														  vxvoladmtask(1M)

NAME

       vxvoladmtask - administer ISP tasks

SYNOPSIS

       vxvoladmtask abort task_tag

       vxvoladmtask clear [task_tag]

       vxvoladmtask list

       vxvoladmtask [-t time] [-n] monitor task_tag

       vxvoladmtask set task_tag=new_task_tag

DESCRIPTION

       The  vxvoladmtask utility can be used to perform basic administrative operations on tasks that have been created by the Intelligent Storage
       Provisioning (ISP) feature of Veritas Volume Manager (VxVM).  You can use the command to list ISP tasks, to monitor their  states,  and	if
       required, to cancel tasks.

KEYWORDS

       abort	 Cancels the specified ISP task.

       clear	 Removes  all  ISP  task objects from the specified task.  If no task is specified, this keyword clears all task objects for tasks
		 that have a status of CANCELLED, DONE or FAILED.

       help	 Displays information on vxvoladmtask usage.

       list	 Lists all ISP tasks.

       monitor	 Monitors the specified ISP task.

       set	 Renames the tag for an ISP task.

OPTIONS

       -n	 Monitors ISP tasks that are newly registered while the program is running, as well as	the  specified	ISP  tasks.   This  option
		 applies only to the monitor keyword.

       -t time	 Exits monitoring after time seconds.  This option applies only to the monitor keyword.

EXAMPLES

       List all ISP tasks:

	      vxvoladmtask list

       Remove the ISP task object with the tag, Task1:

	      vxvoladmtask clear Task1

       Cancel the allocator task object with the tag, Task2:

	      vxvoladmtask abort Task2

EXIT STATUS

       The  vxvoladmtask  utility exits with a non-zero status if the attempted operation fails.  A non-zero exit code is not a complete indicator
       of the problems encountered, but rather denotes the first condition that prevented further execution of the utility.

SEE ALSO

       vxvoladm(1M), vxpool(1M), vxtemplate(1M), vxusertemplate(1M)

VxVM 5.0.31.1							    24 Mar 2008 						  vxvoladmtask(1M)