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Questions tagged [jumboframes]

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Is it correct to use the term "Jumbo" when referring to any packets > 1500 bytes, even those created in software by LRO

I can be a bit of a stickler for correct terminology at work. Recently we have been dealing with the effects of Large Receive Offload on our application. To quote wikipedia It works by aggregating multiple incoming packets from a single stream…
Sam Elstob
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Enabling jumbo frames on switch but not on devices: looking for trouble?

The switch at hand is a Dell PowerConnect 2716 which does support both VLANs and Jumbo Frames but, as far as I can understand from its manual, it only has a global Jumbo enable/disable setting and no per-port or per-vlan MTU settings. I have two…
Luke404
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Broadcom BCM5709C Jumbo Frames on Windows 2008R2

I have a broadcom bcm5709c quad port nic (gigabit netxtreme II); I download the broadcom utility from there site, I can setup teaming and all, but I can't seem to find the setting to enable jumbo frames at all ? Can you please assist or provide some…
Mutahir
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Configure LeftHand iSCSI SAN for jumbo frames after clients are configured

This is similar to enabling jumbo frames on an iSCSI network after the fact but in our case we configured the switches and then went through all the hosts, enabling jumbo frames (we may have screwed ourselves here). The SAN is a Lefthand (actually…
murisonc
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Missing Jumbo and MTU for Broadcom NIC?

I have two Broadcom BCM5708C NetXtreme II GigE NICs in my Dell Windows SBS 2008 server. I would like make one them them Jumbo Frames enabled so that I can add it to my SAN whose VLAN on the switch is already using 9000 MTU. Broadcom's own data…
Mike
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Setup link aggregation and jumbo frames on VMware ESXi 4

I'm setting up an ESXi 4 server to connect to an NFS datastore. I'd like to bond two of the NICs together and use jumbo frames for the NFS connection on a private (non-management) network. I setup a new switch with the 2 NICs and am able to connect…
Sysadminicus
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Requirements to achieve Jumbo Frame (mtu = 9000) with PXE Enabled networks

What I should be looking for when trying to enable Jumbo Frames in networks that relies on PXE for server booting? As far as I know I must have: Network switch capable of MTU >= 9000 The ability to enable Jumbo Frames not only on the network…
Vinícius Ferrão
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Cisco 2960X and Jumbo frames on particular ports

I would like to setup several ports to be able handle jumbo frames. This will be only for my backup nas connected to ESXi host. I did create vlan 103 where I changed mtu size to 9000. Problem is when I want to check accpetation of jumbo frames…
Roman Bielich
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RX errors when using jumbo packets

We have a device outputting high speed data over UDP connected directly to a processor (no switch). The processor is running CentOS 6.6. The connection is gigabit Ethernet. When we use packet sizes in the 1400 byte range, everything works great. …
bobbark
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Cisco PIX 501 and jumbo frames

We currently have a cisco pix 501 running in our office building and we just got word that our network is going to updated to run jumbo frames. I haven't been able to find much information, but from what I gather our PIX does not support jumbo…
Raymond Holguin
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Enabling Jumbo Frame on Cisco 2960G

I'm having issue with enabling jumbo frame on my Cisco 2960G. Here is what I tried, and what I got: Switch(config)#system mtu jumbo 9000 vb:: Read-only file system Changes to the system jumbo MTU will not take effect until the next reload is…
Brice
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TCP packets larger than 4 KB don't get a reply from Linux

I'm running Linux 3.2.51 in a virtual machine (192.168.33.15). I'm sending Ethernet frames to it. I'm writing custom software trying to emulate a TCP peer, the other peer is Linux running in the virtual machine guest. I've noticed that TCP packets…
pts
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Jumbo Frame configuration & VMware

I am hoping one of you can help clear up some of my confusion on this matter. We have 2 new catalyst 3750 switches to support our VM hosts and SAN arrays. The SAN arrays utilize jumbo frames with an MTU of 9000. In the switch config- we specified…
Mike P
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Implementing jumbo frames on one interface and not the other

I have a distributed application that passes a whole lot of traffic among a number of machines. Currently, those machines share a gigabit network with the rest of the machines in the rack, and I'm starting to see problems (packet collisions). …
Jim Mischel
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Ping with jumbo frames fail but returns default ping fail message

I need to set up a local connection between my Windows 11 PC and an external device (IP 10.0.0.10), with jumbo frames enabled (MTU 9000). The end goal on my PC is to connect to the remote device from WSL2, which currently works but has the same MTU…
C. Crt
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