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I have this device Layer 2-3 Gigabit Ethernet Switch Module for IBM eServer BladeCenter and I need to know how to enable jumbo frames to 9000 if this is possible. I searched a lot but I was unable to find any info but that the jumbo frames are supported. Does anyone know how it can be done, and if it is possible to set MTU of 9000 per VLAN, interface etc !?

End how I can see if the jumbo-frames are enabled. I am using the user interface that is not like on cisco devices.

Like: /c/l2/vlan etc

How can I see if jumbos are enabled using this interface!?

  • Did any answer help you? if so, you should accept the answer so that the question doesn't keep popping up forever, looking for an answer. Alternatively, you could provide and accept your own answer. – Ron Maupin Aug 10 '17 at 1:20
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Assuming Blade OS - the command reference is a good place to start.

To see if jumbo support is enabled per vlan, navigate to

/info/l2/vlan

To enable jumbo support per vlan, navigate to

/cfg/l2/vlan <VLAN number>

I don't see anything for more granular control.
Source: http://bladenetwork.net/userfiles/file/PDFs/IBM_GbE_L2-7_Command_Ref.pdf

  • When I am going to cfg/l2/vlan <vlan number> I get this (not jumbo command is present): pvlan - Protocol VLAN Menu privlan - Private-VLAN Menu name - Set VLAN name stg - Assign VLAN to a Spanning Tree Group add - Add port to VLAN rem - Remove port from VLAN def - Define VLAN as list of ports bwidth - Bandwidth Management mgmt - Enable/Disable this VLAN as additional management VLAN ena - Enable VLAN dis - Disable VLAN del - Delete VLAN cur - Display current VLAN configuration – ipermo Jan 8 '15 at 10:33
  • Do you have a part number for the module? – alib_15 Jan 8 '15 at 10:54
  • I have this, if this is it: PCBA Part Number: 317857-C – ipermo Jan 8 '15 at 13:37
  • is very strange because the documentation says that the jumbos are supported, but there is no command to enable it or disable or set the value – ipermo Jan 8 '15 at 14:07
  • Can you send a few jumbo frames and check statistics? – alib_15 Jan 8 '15 at 14:22

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