Hyper-V switch jumbo frames

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hi,

 i have dell server win 2012 , hyper-v server role installed. enable jumbo frames in guest machines(2012 , 2008 r2) can send frame mtu 2002 bytes max, wireshark analysis seems frames dont pass hyper-v switch reason. nic broadcom nextreme mtu 9000(hyper- v machines have 9014 taught issue problem occurs lower mtu in guests). have setup other servers (ibm , dell intel nic) , work fine(have mtu 9014). can encountered issue? thanks.

pete

sfs

on broadcom card have set jumbo frames , mtu in 2 different places using broadcom advanced control suite - can't set through device manager alone.

open bacs, drill down ndis vbd client, hit configuration tab , set jumbo packet. hit iscsi adapter, configuration tab, , set mtu.

then open properties of hyper-v virtual switch adapter , set jumbo packet there too.

my broadcom cards set follows:

mtu: 9600
jumbo packet: 9614

my hyper-v switch virtual adapter (vethernet) set to:

jumbo packet: 9014



Windows Server  >  Hyper-V



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