Configuring Node Aliases; Purpose; Commands; Show Nodealias Config - Enterasys SECURESTACK C3 Configuration Manual

Configuring Node Aliases

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 networkʹs 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.
Itʹs 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

For information about...

show nodealias config

set nodealias
clear nodealias config
show nodealias config
Use this command to display node alias configuration settings on one or more ports.
Syntax
show nodealias config [port-string]
Parameters
port‐string
Defaults
If port‐string is not specified, node alias configurations will be displayed for all ports.
Mode
Switch command, read‐only.
Example
This example shows how to display node alias configuration settings for ports ge.2.1 through 9:
C3(rw)->show nodealias config ge.2.1-9
Port Number
14-40 Logging and Network Management
(Optional) Displays node alias configuration settings for specific port(s).
Max Entries Used Entries
Refer to page...
14-40
14-41
14-42
Status