Extreme Networks Summit1 manual Extreme Discovery Protocol, Summit4/FX, Summit48

SUMMIT VIRTUAL CHASSIS

Table 4-8:Summit Ports to Use to Connect to the Summit Virtual Chassis (continued)

	One Virtual Chassis	Two Virtual Chassis	Four Virtual Chassis
Summit4	Any of ports 17 - 22	Ports 17 and 18, or	Ports 19, 20, 21, and 22
		Ports 19 and 20, or
		Ports 21 and 22
Summit4/FX	Any of ports 17 - 22	Ports 17 and 18, or	Ports 19, 20, 21, and 22
		Ports 19 and 20, or
		Ports 21 and 22
Summit48	Port 49 or Port 50	Ports 49 and 50

EXTREME DISCOVERY PROTOCOL

The Extreme Discovery Protocol (EDP) is used to locate neighbor Extreme Networks switches connected to the Summit Virtual Chassis. When running on a normal switch port, EDP is used to by the Summit switches to exchange topology information with each other. Information communicated using EDP includes the following:

•Switch MAC address (switch ID)

•Switch software version information

•Switch IP address

•Switch VLAN-IP information

•Switch port number

•Summit Virtual Chassis identifier and port number

•Listing of all virtual chassis identifiers

EDP cannot be disabled on ports that are connected to a Summit Virtual Chassis.

When a Gigabit Ethernet port is configured to be connected to a SummitLink port on a Summit Virtual Chassis, the Activity LED on the Summit flashes once per second, even when no traffic is present on the network. The flashing Activity LED indicates that EDP is running successfully between all of the Summit switches connected to the Summit Virtual Chassis.

SUMMIT SWITCH INSTALLATION AND USER GUIDE 4-11