Extreme Networks Summit1 - Manual (Page 83)

S UMMIT S WITCH I NSTALLATION AND U SER G UIDE 4-11
S UMMIT V IRTUAL C HASSIS
E XTREME D ISCOVERY P ROTOCOL
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.
Summit4 Any of ports 17 - 22 Ports 17 and 18, or
Ports 19 and 20, or
Ports 21 and 22 Ports 19, 20, 21, and 22
Summit4/FX Any of ports 17 - 22 Ports 17 and 18, or
Ports 19 and 20, or
Ports 21 and 22 Ports 19, 20, 21, and 22
Summit48 Port 49 or Port 50 Ports 49 and 50
Table 4-8: Summit Ports to Use to Connect to the Summit Virtual Chassis (continued)
One Virtual Chassis Two Virtual Chassis Four Virtual Chassis
Summit.bk : 4PORTS.FM Page 11 Thursday, June 18, 1998 9:27 AM