NETGEAR ProSafe GSM7224P User Manual page 243

OSPF advertises the IP MTU in the Database Description packets it sends to its neighbors
during database exchange. If two OSPF neighbors advertise different IP MTUs, they will not
form an adjacency. (unless OSPF has been instructed to ignore differences in IP MTU with
the ip ospf mtu-ignore command.)
Note: The IP MTU size refers to the maximum size of the IP packet (IP
Header + IP payload). It does not include any extra bytes that may
be required for Layer-2 headers. To receive and process packets,
the Ethernet MTU (see
size of the Ethernet header.
Default
1500 bytes
Format
ip mtu <68-9198>
Mode
Interface Config
no ip mtu
This command resets the ip mtu to the default value.
Format
no ip mtu <mtu>
Mode
Interface Config
encapsulation
This command configures the link layer encapsulation type for the packet. The encapsulation
type can be ethernet or snap.
Default
ethernet
Format
encapsulation {ethernet | snap}
Mode
Interface Config
Note: Routed frames are always ethernet encapsulated when a frame is
routed to a VLAN.
ProSafe Managed Switch
mtu on page 40) must take into account the
Routing Commands
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