Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual page 1416

Complete Software Guide for Junos
1312
®
OS for EX Series Ethernet Switches, Release 10.4
Table 203: Encapsulation Overhead by Encapsulation Type (continued)
Interface Encapsulation
Ethernet over ATM
Ethernet SNAP
Ethernet translational cross-connect (TCC)
Ethernet version 2
Extended virtual local area network (VLAN) CCC and
VPLS
Extended VLAN TCC
Frame Relay
PPP
VLAN CCC
VLAN VPLS
VLAN TCC
The default media MTU is calculated as follows:
Default media MTU = Default IP MTU + encapsulation overhead
When you are configuring point-to-point connections, the MTU sizes on both sides of the
connections must be the same. Also, when you are configuring point-to-multipoint
connections, all interfaces in the subnet must use the same MTU size.
Encapsulation Overhead (Bytes)
32
22
18
14
4
22
4
4
4
4
22
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