!"#$%&'<)'=$>?2'@%.>&'%2$0";#'02-232#4'
Juniper!commands!
Jumbo frame support is enabled by adding the mtu keyword when configuring interfaces.
Note that the mtu keyword applies to the physical interface and not the logical unit
interface where an IPv4 address is assigned.
Note that the Junos mtu keyword does not include the Ethernet CRC. Thus, to pass
9,216-byte Ethernet frames (including CRC), the routing interface will take a command
of mtu 9212.
These commands assign MTU and IP address to interface xe-0/1/0:
admin@VCF> configure
admin@VCF# set interfaces xe-1/0/2 mtu 9212
admin@VCF# set interfaces xe-1/0/2 description "Nexus 7010 e3/3"
admin@VCF# set interfaces xe-1/0/2.0 family inet address 192.18.64.2/24
Next, this command starts OSPF routing on interface xe-1/0/2.0. In this example, the
interface is a member of OSPF area 0:
admin@VCF# set protocols ospf area 0.0.0.0 interface xe-1/0/2.0
admin@VCF# commit
Cisco!commands!
Cisco devices also use the mtu keyword in the interface configuration context to enable
switching of jumbo frames. Cisco IOS has separate commands for mtu, describing the
maximum transmission unit for the Ethernet frame and for the ip mtu, describing the
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