>> 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 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… The platform version is joyent_20160218T022556Z. Dirk > 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
