AutoTracker VLANs
Page 22-5
How Devices are Assigned to AutoTracker VLANs
When a broadcast frame, a multicast frame, or a unicast frame from an unknown device is
received at a switching module, the frame is forwarded to the
MPX
for processing. Source
learning logic on the
MPX
module examines the entire frame to determine the
VLAN
or
VLAN
s
in which the originating device should be a member. If the frame matches any one policy
defined for a
VLAN
, the originating device (and the port to which it is connected) are made
members of that
VLAN
. If the frame does
not
match any
VLAN
policy, one of the following
occurs:
• If the
defvl
command is on, the source device is made a member of Default
VLAN
#1 in the
Group of which the source port is a member. The
defvl
command determines whether traf-
fic from devices that do not match any policies is assigned to the default
VLAN
or dropped.
(See “The defvl Command” below for more information on this command.)
• If the
defvl
command is off, all traffic from the source device is dropped.
Please Take Note
A broadcast or multicast frame is processed to
determine the source device’s
VLAN
membership
each time it is received. A unicast frame is
processed to determine the source device’s
VLAN
membership only the first time it is received.
When the
MPX
module has determined the
VLAN
or
VLAN
s in which the originating device
belongs, it relays this information to the switching module. The switching module updates a
VLAN
membership flag attached to the frame’s source
MAC
address in the
CAM
(content-
addressable memory). The frame is then switched based on this membership flag.
Refer to Chapter 24, “AutoTracker VLAN Application Examples,” for information on
AutoTracker
VLAN
assignments in specific network situations.
The defvl Command
You can turn the
defvl
command on and off simply by entering
defvl on
or
defvl off
. If you
enter the command without any parameters, it displays the current setting for the Default
VLAN
. For example, if source devices are automatically placed in the Default
VLAN
when they
do not match any
VLAN
policy rule, the following message would display:
membership in default vlan is currently on
If source devices are automatically dropped when they do not match any
VLAN
policy, the
following message would display:
membership in default vlan is currently off
The
defvl
command applies to all Groups in an Omni Switch/Router and it is only applicable
if there is at least one AutoTracker rule configured.
Содержание Omni Switch/Router
Страница 1: ...Part No 060166 10 Rev C March 2005 Omni Switch Router User Manual Release 4 5 www alcatel com ...
Страница 4: ...page iv ...
Страница 110: ...WAN Modules Page 3 40 ...
Страница 156: ...UI Table Filtering Using Search and Filter Commands Page 4 46 ...
Страница 164: ...Using ZMODEM Page 5 8 ...
Страница 186: ...Displaying and Setting the Swap State Page 6 22 ...
Страница 202: ...Creating a New File System Page 7 16 ...
Страница 270: ...Displaying Secure Access Entries in the MPM Log Page 10 14 ...
Страница 430: ...OmniChannel Page 15 16 ...
Страница 496: ...Configuring Source Route to Transparent Bridging Page 17 48 ...
Страница 542: ...Dissimilar LAN Switching Capabilities Page 18 46 ...
Страница 646: ...Application Example DHCP Policies Page 20 30 ...
Страница 660: ...GMAP Page 21 14 ...
Страница 710: ...Viewing the Virtual Interface of Multicast VLANs Page 23 16 ...
Страница 722: ...Application Example 5 Page 24 12 ...
Страница 788: ...Viewing UDP Relay Statistics Page 26 24 ...
Страница 872: ...The WAN Port Software Menu Page 28 46 ...
Страница 960: ...Deleting a PPP Entity Page 30 22 ...
Страница 978: ...Displaying Link Status Page 31 18 ...
Страница 988: ...Displaying ISDN Configuration Entry Status Page 32 10 ...
Страница 1024: ...Backup Services Commands Page 34 14 ...
Страница 1062: ...Diagnostic Test Cable Schematics Page 36 24 ...
Страница 1072: ...Configuring a Switch with an MPX Page A 10 ...
Страница 1086: ...Page B 14 ...
Страница 1100: ...Page I 14 Index ...