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5.2.6.15 Alias
With large deployments, the configuration of remote sites utilizes a set of shared attributes, of which a small set of attributes
are unique for each location. For such deployments, maintaining separate configuration (WLANs, profiles, policies and ACLs)
for each remote site is complex. Migrating any global change to a particular configuration item to all the remote sites is a
complex and time consuming operation.
Also, this practice does not scale gracefully for quick growing deployments.
An
alias
enables an administrator to define a configuration item, such as a hostname, as an
alias
once and use the defined
alias
across different configuration items such as multiple ACLs.
Once a configuration item, such as an ACL, is utilized across remote locations, the
alias
used in the configuration item (ACL) is
modified to meet local deployment requirement. Any other ACL or other configuration items using the modified alias also get
modified, simplifying maintenance at the remote deployment.
Aliases have scope depending on where the Alias is defined. Alias are defined with the following scopes:
•
Global aliases
are defined from the
Configuration > Network > Alias
screen. Global aliases are available for use globally
across all devices, profiles and RF Domains in the system.
•
Profiles aliases
are defined from
Configuration > Devices > System Profile > Network > Alias
screen. These aliases
are available for use to a specific group of wireless controllers or access points.
Alias
values defined in this profile override
alias values defined within global aliases.
•
RF Domain aliases
are defined from
Configuration > Devices > RF Domain > Alias
screen. These aliases are available
for use for a site as a RF Domain is site specific. RF Domain alias values override alias values defined in a global alias or a
profile alias configuration.
•
Device aliases
are defined from
Configuration > Devices > Device Overrides > Network > Alias
screen. Device alias
are utilized by a single device only. Device alias values override alias values defined in a global alias
,
profiles alias or
RF
Domain alias configuration.
Using an alias, configuration changes made at a remote location override any updates at the management center. For example,
if an
Network Alias
defines a network range as 192.168.10.0/24 for the entire network, and at a remote deployment location,
the local network range is 172.16.10.0/24, the
Network Alias
can be overridden at the deployment location to suit the local
requirement. For the remote deployment location, the
Network Alias
works with the 172.16.10.0/24 network. Existing ACLs
using this
Network Alias
need not be modified and will work with the local network for the deployment location. This simplifies
ACL definition and management while taking care of specific local deployment requirements.
Alias can be classified as:
•
•
•
5.2.6.15.1Network Basic Alias
A
basic alias
is a set of configurations that consist of VLAN, host, network and address range alias configurations. VLAN
configuration is a configuration for optimal VLAN re-use and management for local and remote deployments. A host alias
configuration is for a particular host device’s IP address. A network alias configuration is utilized for an IP address on a
particular network. An address range alias is a configuration for a range of IP addresses.
A basic alias configuration can contain multiple instances for each of the five (5) alias types.
To edit or delete a basic alias configuration:
1. Select
Configuration
tab from the Web user interface.
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