Configuring Node Aliases
Enterasys C3 Configuration Guide 18-17
Example
This example enables forwarding of the standard group multicast MAC addresses.
C3(su)->set mac unreserved-flood enable
Configuring Node Aliases
The node alias feature enables administrators to determine the MAC address and location of a
given end-station (or node) using the node’s Layer 3 alias information (IP address) as a key. With
this method, it is possible to determine that, for instance, IP address 123.145.2.23 is located on
switch 5 port 3.
The passive accumulation of a network's node/alias information is accomplished by “snooping”
on the contents of network traffic as it passes through the switch fabric.
In the C3, node data is automatically accumulated into the ct-alias mib, and by default this feature
is enabled. The NetSight Console Compass utility and Automated Security Manager (ASM) use
the information in the node/alias MIB table.
It's important to make sure that inter-switch links are not learning node/alias information, as it
would slow down searches by the NetSight Compass and ASM tools and give inaccurate results.
Purpose
To review, disable, and re-enable node (port) alias functionality on the switch.
Commands
show nodealias config
Use this command to display node alias configuration settings on one or more ports.
Syntax
show nodealias config [port-string]
Parameters
Defaults
If port-string is not specified, node alias configurations will be displayed for all ports.
Mode
Switch command, read-only.
For information about... Refer to page...
show nodealias config 18-17
set nodealias 18-18
clear nodealias config 18-19
port-string (Optional) Displays node alias configuration settings for specific port(s).
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