Ge Wan Physical Interface - Dell Force10 C150 Configuration Manual

Configuring Maximum Transmission Unit (MTU)
Maximum Transmission Unit is an integer value that represents the greatest number of bytes that any given
interface on the system can handle. MTU settings allow the router to determine if a large packet needs to
be fragmented before transmission. PPP must be enabled on a SONET interface before MTU can become
configurable. MTU size can be changed in INTERFACE mode by entering the command
Figure 49-1. MTU configuration display
interface SONET 0/0
no shutdown
FTOS(conf-if-so-0/0)#encap ?
ppp
FTOS(conf-if-so-0/0)#encap ppp
FTOS(conf-if-so-0/0)#mtu ?
<8-9252>
FTOS(conf-if-so-0/0)#ip mtu ?
<576-9230>

10GE WAN Physical Interface

10GE interfaces support LAN and WAN modes. When in WAN mode, the 10GE interface operates as a
SONET interface. Use the
WAN mode.
Note that the port must be in shutdown state before the
(Figure 49-2).
Note: For E-Series ExaScale systems, you must configure all the ports in a port-pipe to either WANPHY
or non-WANPHY. They cannot be mixed on the same port-pipe. If you configure port 3 for example to be
a WANPHY port then ports 0-4 (same port pipe) all must be WANPHY as well.
Step Task
1 Place the port in shutdown state
2 Place the port in WAN mode
3 Display the active/defective alarms
PPP encapsulation
POS MTU size (default = 4506)
Interface IP MTU (default is 1500)
wanport
command in INTERFACE mode to transition a 10GE interface into
Command Syntax
shutdown
wanport
show controllers tengigabitethernet
port
wanport
command can be executed successfully.
mtu size.
Command Mode
INTERFACE
INTERFACE
EXEC
slot/
SONET/SDH | 1009