Node Alias NEW!

Table 1. Node Alias product support
Feature	Product	Release introduced
Node Alias and DHCP Fingerprinting	5320 Series	Fabric Engine 9.1
	5420 Series	Fabric Engine 9.1
	5520 Series	Fabric Engine 9.1
	5720 Series	Fabric Engine 9.1
	7520 Series	Fabric Engine 9.1
	7720 Series	Fabric Engine 9.1
	VSP 4900 Series	VOSS 9.1
	VSP 7400 Series	VOSS 9.1

Node Alias is a powerful troubleshooting tool. With Node Alias functionality, you can discover information about the end systems in the network on a per-port basis. DHCP Fingerprinting is integrated into Node Alias functionality and can provide information about the device that sent a DHCP request.

As the packets from the end systems transit through the Node Alias-enabled port, the switch stores key attributes in a client information database that you can query to retrieve specific system information, including protocol and DHCP client information.

The client database stores the following client, protocol, and DHCP Fingerprint information for each client:

Source MAC address
I-SID
VLAN
Incoming interface
Protocols the client uses
IPv4 Address
IPv6 Address
IsActive flag
First learned time
Last learned time
Host name
OS type
Device type
OS version
Protocol information type
Protocol information value
Option 12 information
Option 53 information
Option 55 information
Option 60 information