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Notes
1.
The table below describes the MTU of the applicable port and the frame length that
can be sent or received (the maximum length of frames in Ethernet V2 format#,
excluding the FCS).
#: For details about the frame format, see 12.1.3 Control on the MAC and LLC
sublayers in Configuration Guide Vol. 1.
Line type
10BASE-T (full and
half-duplex),
100BASE-TX
(half-duplex)
All other cases
#1: The value set by using the
#2: The value set by the
2.
Use the same MTU value for the ports belonging to the VLAN. If the MTU is different,
the following operation is performed:
Related commands
None
mtu setting
system mtu
setting
Not related
Not related
Set
Not related
Not set
Set
Not set
mtu
system mtu
If the MTU of the output port is smaller than the MTU of the input port, and the
length of the frames to be forwarded exceeds the maximum length of frames
that can be sent on the output port, the MTU on the output port is discarded.
Length of a frame that
can be sent or received
(in octets)
Tagged 1518
Untagged 1514
#1
Tagged M1
Untagged M1
#2
Tagged M1
Untagged M2
Tagged 1518
Untagged 1514
command of
interface
command.
Port MTU (in
octets)
1500
#1
+18
M1
#1
+14
#2
+18
M2
#2
+14
1500
.
mtu
89
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