Reference Guide

MTU of 1518 and IP MTU of 1500. The VLAN’s Link MTU cannot be higher than 1518
bytes and its IP MTU cannot be higher than 1500 bytes.
The following describes the difference between Link MTU and IP MTU.
Layer 2 Overhead Difference between Link MTU and IP MTU
Ethernet (untagged) 18 bytes
VLAN Tag Tag 22 bytes
Untagged Packet
with VLAN-Stack
Header
22 bytes
Tagged Packet with
VLAN-Stack Header
26 bytes
Related
Commands
mtu — sets the link MTU for an Ethernet interface.
ip name-server
Enter up to six IPv4 addresses of name servers. The order you enter the addresses determines the order of their use.
S4820T
Syntax
ip name-server ipv4-address [ipv4-address2...ipv4-address6]
To remove a name server, use the no ip name-server ip-address command.
Parameters
ipv4-address Enter the IPv4 address, in dotted decimal format, of the name server
to be used.
ipv4-address2...
ipv4-address6
(OPTIONAL) Enter up five more IPv4 addresses, in dotted decimal
format, of name servers to be used. Separate the addresses with a
space.
Defaults No name servers are configured.
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.7.0 Introduced on the S4810.
Version 8.1.1.0 Introduced on the E-Series ExaScale.
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