Extreme Networks Summit WM Series Uživatelská příručka stáhnout pdf (Strana 173)

Summit WM-Series WLAN Switch and Altitude Access Point Software Version 1.0 User Guide

173

C DHCP, SLP, and Option 78 reference

For the Altitude AP’s process to “discover” the Summit WM-Series Switch, the Summit WM-Series

Switch Software system relies on a DHCP server that supports Option 78 and 79 for Service Location

Protocol (SLP). The combination of Dynamic Host Configuration Protocol (DHCP), Option 78 and 79,

and SLP provide a technique that defines the Summit WM-Series Switch as the only element on the

network that the Altitude AP can communicate with.

Option 78 is a list of IP addresses of Directory Agents, used by Service Agents and Users Agents.

For the purposes of the Summit WM-Series Switch Software system, Option 78 should be set to the IP

address of the Summit WM-Series Switch management port. The Summit WM-Series Switch will run

the SLP daemon and act as a directory service.

NOTE

One of the ethernet ports on the Summit WM-Series Switch should be set to allow management traffic so that SLP

messages can arrive on that port.

Option 79 is an identifier that refers to a set of services called a “scope”. If a User Agent has been

assigned to a scope, it can only see the services in that scope. This will limit the IP addresses of

Directory Agents available to the User Agent.

Here's how Summit WM-Series Switch Software uses these SLP options:

1 The Summit WM-Series Switch Manager or the Altitude AP Manager use the Service Agent:

● to look up the location of the Directory Agent using Option 78 and 79 in the DHCP server

● to register with the Directory Agent

2 The Altitude AP User Agent looks up the location of the Directory Agent using Option 78 and 79 in

the DHCP server.

3 The Altitude AP User Agent contacts the Directory Agent for services of the types “extreme”.

4 The Altitude AP attempts to connect with the Summit WM-Series Switch or Altitude AP Manager.

Now the use of SLP is completed and the Altitude AP and Summit WM-Series Switch will now

communicate using a UDP-based tunneling protocol.

1 2 ... 168 169 170 171 172 173 174 175 176 177 178 ... 227 228

Žádné komentáře

Extreme Networks Summit WM Series Uživatelská příručka Strana 173