Alcatel Carrier Internetworking Solutions Switch/Router 사용자 설명서

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19
Managing Groups and Ports
In a traditional hub-based network, a broadcast domain is confined to a single network inter-
face, such as Ethernet, or even a specific physical location, such as a department or building 
floor. In a switch-based network, such as one comprised on Omni Switch/Routers, 
(OmniS/Rs) a broadcast domain—or Group— can span multiple physical switches and can 
include ports using multiple network interfaces. For example, a single OmniS/R Group could 
span three different switches located in different buildings and include Ethernet and 
WAN
 
physical ports.
An unconfigured Omni Switch/Router contains one Group, or broadcast domain. It also 
contains one default Virtual Network, or 
VLAN
, referred to as “default 
VLAN
 #1”. The default 
Group, Group #1, and its default VLAN contain all physical ports in the switch. When a 
switching module is added to the switch all of these additional physical ports are also 
assigned to Group #1, 
VLAN
 #1.
You can create Groups in addition to this default Group. When you add a new Group, you 
give it a name and number, optionally configure a virtual router port for its default 
VLAN
, and 
then add switch ports to it. The switch ports you add to a new Group are moved from the 
default Group #1 to this new Group. (For more information on how ports are assigned to 
Groups, see How Ports Are Assigned to Groups on page 19-2.)
Up to 500 Groups can be configured on each OmniS/R. An entire OmniS/R network can 
contain up to 65,535 Groups. Each Group is treated as a separate entity.
There are three main types of Groups: 
1. Mobile Groups. These groups allow ports to be dynamically assigned to the Group based 
on AutoTracker polices. In contrast to non-mobile Groups, AutoTracker rules are assigned 
directly to a mobile Group. No AutoTracker VLANs are contained within a mobile Group. 
(However, mobile groups do contain a default VLAN 1 to which AutoTracker policies are 
assigned; policies assigned to this default VLAN apply to the entire mobile group.) Any 
AutoTracker policy may be used as criteria for membership in a mobile Group. Mobile 
groups are described in more detail in Mobile Groups on page 19-5.
2. Mobile Groups based on authentication. Authenticated Groups are a special form of 
mobile Group. These Groups include devices that are dynamically assigned based on an 
authentication criteria. Typically the user will have to log in with a valid password before 
being included in an authenticated mobile Group. Group membership is based on users 
proving their identity rather than the physical location of user devices. Authenticated 
Groups are described in more detail in the Switch Network Services User Manual.
3. Non-mobile Groups. These Groups are the original Group type used in previous releases. 
They contain statically assigned ports and may contain AutoTracker or Multicast VLANs. 
These VLANs within a non-mobile Group use AutoTracker policies to filter traffic. 
AutoTracker rules are not assigned to non-mobile Groups, they are assigned to the VLANs 
within the Group. Non-mobile groups are described in more detail in Non-Mobile Groups 
and AutoTracker VLANs
 on page 19-15.
All three types of Groups may co-exist on the same switch. However, a switch port cannot 
belong to a non-mobile group and a mobile group.