Nokia Network Voyager, Reference Manual

Page: 81 / 700

Voyager Reference Guide 81
The Nokia implementation supports adding a logical interface with a VLAN
ID to a physical interface. In a VLAN packet, the OSI layer-two header, or
MAC header, contains four more bytes than the typical ethernet header for a
total of 18 bytes. When traffic arrives at the physical interface, the system
examines it for the VLAN layer-two header and accepts and forwards the
traffic if a VLAN logical interface is configured. If the traffic that arrives at
the physical interface does not have a VLAN header, it is directed to the
channel 0, or untagged, interface. In the Nokia implementation the untagged
channel 0 interface drops VLAN packets sent to the subnets on that interface.
Outgoing traffic from a VLAN interface is tagged with the VLAN header. The
Nokia appliance can receive and generate fully conformant IEEE 802.1Q
tags. The IEEE802.1Q standard defines the technology for virtual bridged
networks. The Nokia implementation is completely interoperable as a router,
not as a switch.
Configuring a VLAN Interface
1. Click C
ONFIG
on the home page.
2.
Click the Interfaces link.
3.
Click the link to the physical ethernet interface for which you want to
enable a VLAN interface in the
P
HYSICAL
field. This action takes you to
the physical interface page for that interface.
4.
Enter a value to identify the VLAN interface in the
C
REATE A NEW
VLAN I
D
edit box. The range is 2 to 4094. The values 0 and 4095 are
reserved by the IEEE standard. VLAN ID 1 is reserved by convention.
There is no default. Click
A
PPLY
.
5.
The new logical interface for the VLAN appears in the
L
OGICAL
I
NTERFACES
field with the name
eth-sXpYcZ
, where
X
is the slot
number,
Y
is the physical port number and
Z
is the channel number. The
channel numbers increment starting with 1 with each VLAN ID that you
create.
6. Click S
AVE
to make your changes permanent.