HP-UX Reference (11i v3 07/02) - 7 Device (Special) Files, 9 General Information, Index (vol 10)

VLAN(7) VLAN(7)

NAME

VLAN - virtual local area network

DESCRIPTION

This manpage provides a brief overview of VLAN (virtual LAN) technology.

VLANs are logical, or virtual, network segments that can span multiple physical network segments. A

primary beneﬁt of VLANs is that they can isolate broadcast and multicast trafﬁc by determining which des-

tinations should receive that trafﬁc, thereby making better use of switch and end-station resources.

Logical separation using VLAN allows for the logical grouping of PCs, servers and other network resources

to behave as if they were connected to the same, physical segment, even if they are not.

HP-UX VLAN is an implementation of IEEE 802.1p/Q standards.

VLAN interfaces can be conﬁgured in HP-UX servers using the command

nwmgr (see nwmgr_vlan(1M)) or

lanadmin (see lanadmin_vlan(1M)). HP recommends that you use

nwmgr for HP-UX Release 11i Ver-

sion 3 and forward. Interfaces can also be conﬁgured using the web-based management tool HP-UX System

Management Homepage (HP SMH).

Each VLAN interface created is assigned a VLAN PPA (VPPA) that is unique across the system and a

VLAN ID, that identiﬁes the virtual LAN it is part of. The VLAN ID is unique on the interface on which

the VLAN interface is created.

WARNINGS

The

lanadmin, lanscan, and linkloop commands are deprecated. These commands will be removed

in a future HP-UX release. HP recommends the use of replacement command nwmgr(1M) to perform all

network interface-related tasks.