User guide

E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
9-25
D
YNAMIC
L
INK
C
ONTEXT
S
YSTEM
D
YNAMIC
L
INK
C
ONTEXT
S
YSTEM
The Dynamic Link Context System (DLCS) is a feature that snoops WINS NetBIOS
packets and creates a mapping between a user name, the IP address or MAC address,
and the switch/port. Based on the information in the packet, DLCS can detect when an
end station boots up or a user logs in or out, and dynamically maps the end station
name to the current IP address and switch/port. This information is available for use
by ExtremeWare Enterprise Manager (EEM) version 2.1, or later, in setting policies that
may be applied to users and may dynamically follow a user's location. DLCS provides
you with valuable information on a user’s location and associated network attributes.
For DLCS to operate within ExtremeWare, the user or end station must allow for
automatic DLCS updates.
This feature should only be used in conjunction with the ExtremeWare Enterprise
Manager Policy System. Refer to the ExtremeWare Enterprise Manager 2.0
documentation for more information.
DLCS G
UIDELINES
Follow these guidelines when using DLCS:
• Only one user is allowed on one workstation at a given time.
• A user may be logged into many workstations simultaneously.
• An IP-address can be learned on only one port in the network at a given time.
• Multiple IP-addresses can be learned on the same port.
• DLCS mapping is flushed when a user logs in or logs out, or when an end-station is
shutdown.
create isq-server <servers-listname> Creates a remote destination that should be
snooped.
delete isq-server <servers-listname> Deletes a remote destination.
disable isq <vlan name> Disables ISQ.
enable isq <vlan name> Enables ISQ.
Table 9-13: ISQ Configuration Commands (continued)
Command Description