Deployment Guide
33 VxFlex Network Deployment Guide using Dell EMC Networking 25GbE switches and OS10EE
To enable jumbo frames for the SVM, perform the following steps:
1. Run the ifconfig command to get the NIC information. The following is an example from an SVM
deployed in this solution, VxFlex-172.16.33.12:
VxFlex-172-16-33-12:~ # ifconfig
eth0 Link encap:Ethernet HWaddr 00:50:56:B7:81:28
inet addr:172.16.33.12 Bcast:172.16.33.255 Mask:255.255.255.0
inet6 addr: fe80::250:56ff:feb7:8128/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:438 errors:0 dropped:0 overruns:0 frame:0
TX packets:118 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:32011 (31.2 Kb) TX bytes:14726 (14.3 Kb)
eth1 Link encap:Ethernet HWaddr 00:50:56:B7:A1:31
inet addr:172.16.34.12 Bcast:172.16.34.255 Mask:255.255.255.0
inet6 addr: fe80::250:56ff:feb7:a131/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:44348476 errors:0 dropped:1 overruns:0 frame:0
TX packets:20392679 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:150867588100 (143878.5 Mb) TX bytes:187404794725
(178723.1 Mb)
eth2 Link encap:Ethernet HWaddr 00:50:56:B7:C4:C8
inet addr:172.16.35.12 Bcast:172.16.35.255 Mask:255.255.255.0
inet6 addr: fe80::250:56ff:feb7:c4c8/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:44461343 errors:0 dropped:1 overruns:0 frame:0
TX packets:20318888 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:159199012195 (151824.0 Mb) TX bytes:181980663115
(173550.2 Mb)
In this example, eth1 and eth2 correspond to VxFlex Data Network 1 (subnet 172.16.34.0/24, VLAN
1634) and VxFlex Data Network 2 (subnet 172.16.35.0/24, VLAN 1635). Administrative access uses
Eth0.
2. Using the interface name, edit the appropriate network configuration files, and append MTU value of
9000 to the end of the configuration. The following is an example for interface eth1:
VxFlex-172-16-33-12:~ # vi /etc/sysconfig/network/ifcfg-eth1
DEVICE=eth1
STARTMODE=onboot
USERCONTROL=no
BOOTPROTO=static
NETMASK=255.255.255.0
IPADDR=172.16.34.12
MTU=9000