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тАО02-03-2010 12:30 AM
тАО02-03-2010 12:30 AM
I have done APA on HP Unix 11.31.
Now i want to change the MTU size for lan901.
How can i achieve that?
Page 88 of the document
http://docs.hp.com/en/J4240-90049/APA-Admin-Guide.pdf
is showing test it is not possible to reset speed, duplex mode AND MTU over a link aggregate.
How i can achieve my requirement (New MTU Size)?
Manoj K
Solved! Go to Solution.
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тАО02-03-2010 12:48 AM
тАО02-03-2010 12:48 AM
Re: Change MTU size for APA
I delayed this configuration in the past until I had to install a set of patches, since a reboot of the server does all the above.
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тАО02-03-2010 01:58 AM
тАО02-03-2010 01:58 AM
SolutionYou can change the MTU size of the underlying interfaces( for example lan901=lan50 and lan52)
Below are the list of steps to change to mtu size to 1476 0n lan50.
nwmgr -s -f -c lan50 -A mtu=1476 --cu
lan50 current values:
New MTU = 1476
lanadmin -m 50
MTU Size = 1476
Now to make the changes available across reboot use the below command
nwmgr -s -A all --sa --fr cu -c lan50.
lan50 saved values:
New Speed = auto_on
New MTU = 1476
New MAC Address = 0x001e0bfdb0a6
New Receive Flow Control = On
New Transmit Checksum Offload = Off
New Receive Checksum Offload = Off
New Virtual MTU = 0
TCP Segmentation Offload is now disabled.
New Max Send Buffers = 1
New Max Send Coalesce Ticks = 150
New Max Recv Buffers = 1
New Max Recv Coalesce Ticks = 0
New Interrupt Throttle Mode = -1
New Diagnostics Threshold = 0
nwmgr -s -c lan52 -A mtu=1476 --cu
lan52 current values:
New MTU = 1476
nwmgr -s -c lan52 -A all --saved --from cu
lan52 saved values:
New Speed = auto_on
New MTU = 1476
New MAC Address = 0x001e0bfdc060
New Receive Flow Control = On
New Transmit Checksum Offload = Off
New Receive Checksum Offload = Off
New Virtual MTU = 0
TCP Segmentation Offload is now disabled.
New Max Send Buffers = 1
New Max Send Coalesce Ticks = 150
New Max Recv Buffers = 1
New Max Recv Coalesce Ticks = 0
New Interrupt Throttle Mode = -1
New Diagnostics Threshold = 0
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тАО02-03-2010 02:58 AM
тАО02-03-2010 02:58 AM
Re: Change MTU size for APA
Manoj
Manoj K
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тАО02-03-2010 03:28 AM
тАО02-03-2010 03:28 AM
Re: Change MTU size for APA
No you've to shut down the interfaces.
Login through the console and do the changes.
Sagar
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тАО02-13-2010 10:21 PM
тАО02-13-2010 10:21 PM
Re: Change MTU size for APA
Thanks.
The steps which you provided works fine.
Any idea about the settings to be changed in switch side.
Manoj K
Manoj K
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тАО02-14-2010 08:28 PM
тАО02-14-2010 08:28 PM
Re: Change MTU size for APA
I've no idea about what needs to be changed on the swicth side
Sagar
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тАО05-12-2011 12:42 AM
тАО05-12-2011 12:42 AM