On 3/4/16 8:32 , Dirk Steinberg wrote: > >>> On the older Broadwell NUCs (I218) I was unable to set >>> any MTU higher than 1500. I found that disappointing, >>> but maybe I did something wrong. >> >> The I218 in theory supports jumbo frames. We'll need to work out a bit >> more information about what went wrong. The best starting point is to >> get the output of dladm show-linkprop -p mtu on one of the e1000g's for >> the I218. > > [root@nuc0 ~]# dladm show-phys > LINK MEDIA STATE SPEED DUPLEX DEVICE > e1000g0 Ethernet up 1000 full e1000g0 > [root@nuc0 ~]# dladm show-linkprop -p mtu e1000g0 > LINK PROPERTY PERM VALUE DEFAULT POSSIBLE > e1000g0 mtu rw 1500 1500 1500-9216 > > Setting a higher MTU in a running system does not work > (I read that this is expected, although on Linux this has always worked) > > [root@nuc0 ~]# ifconfig e1000g0 mtu 9000 > ifconfig: setifmtu: SIOCSLIFMTU: e1000g0: Invalid argument > [root@nuc0 ~]# dladm set-linkprop -p mtu=9000 e1000g0 > dladm: warning: cannot set link property ‚mtu' on 'e1000g0': link busy
Yes, this is a known limitation with that driver. > So I changed the MTU in the boot-time config in /usbkey/config: > > # underlay_nic is the underlay for SDC fabric networking > underlay_nic=b8:ae:ed:72:8a:17 > underlay0_vlan_id=4 > underlay0_ip=10.88.88.2 > underlay0_netmask=255.255.255.0 > underlay0_mtu=9000 > > But this leads to an error in the boot-up process. > Or do I have to increase the MTU of the physical > e1000g0 as well? Since the untagged e1000g0 > is running the admin network I thought I was > supposed to leave that at 1500… Is this SmartOS or SDC? Is this an SDC headnode? Robert ------------------------------------------- smartos-discuss Archives: https://www.listbox.com/member/archive/184463/=now RSS Feed: https://www.listbox.com/member/archive/rss/184463/25769125-55cfbc00 Modify Your Subscription: https://www.listbox.com/member/?member_id=25769125&id_secret=25769125-7688e9fb Powered by Listbox: http://www.listbox.com
