User Manual
Chapter 3 - Operation and Administration of the Macro BTS NPU Configuration
4Motion 135 System Manual
3.4.2.1.2.5 Configuring the MTU for physical interfaces
You can configure the MTU for the physical interface. If the port receives packets
that are larger than the configured MTU, packets are dropped.
Run the following command to configure the MTU of the physical interface:
npu(config-if)# mtu <frame-size(1518-9000)>
3.4.2.1.3 Managing VLAN Translation
4Motion supports translation of the VLAN ID for packets received and transmitted
on the DATA port to a configured VLAN ID. the data port operates in VLAN-aware
bridging mode (tagged-trunk mode). the values configured for VLAN ID(s) used on
this port are the VLAN IDs used internally (including tagging of R6 traffic). these
are the VLAN ID for the bearer IP interface (the default is 11) and, in in-band
connectivity mode, the VLAN ID of the external-management IP interface (the
default is 12).
Command
Syntax
npu(config-if)# mtu <frame-size(1518-9000)>
Privilege
Level
10
Syntax
Description
Parameter Description Presence Default
Value
Possible
Values
<frame-size(1518-
9000)>
Indicates the MTU (in bytes)
to be configured for the
physical interface.
For the DATA interface the
range is from 1518 to 9000.
For all other interfaces the
following values are
supported by the hardware:
1518, 1522, 1526, 1536,
1552, 1664, 2048, 9022.
mandatory For the
DATA and
CSCD
interface the
default is
1664.
For the
MGMT
interface the
default is
1522.
1518-9000
for the
DATA
interface.
1518, 1522,
1526, 1536,
1552, 1664,
2048, 9022
for all other
interfaces.
Command
Modes
Interface configuration mode