Extreme Networks Summit1 - Manual (Page 100)

5-14 S UMMIT S WITCH I NSTALLATION AND U SER G UIDE
V IRTUAL LAN S (VLAN S )
VLAN names are locally significant. That is, VLAN names used on one switch are only
meaningful to that switch. If another switch is connected to it, the VLAN names have
no significance to the other switch. The exception to this is when a switch is connected
to a Summit Virtual Chassis. In this case, the VLAN name is used as part of the
connectivity negotiation process. You should use VLAN names consistently across your
entire network.
D EFAULT VLAN
The Summit ships with one default VLAN that has the following properties:
• The VLAN name is default.
• It contains all the ports on a new or initialized switch.
• The default VLAN is untagged on all ports. It has an internal VLANid of 1.
C
ONFIGURING
VLAN
S ON THE
S
UMMIT
This section describes the commands associated with setting up VLANs on the Summit.
Configuring a VLAN involves the following steps:
1 Create and name the VLAN.
2 Assign an IP address and mask (if applicable) to the VLAN, if needed.
Each IP address and mask assigned to a VLAN must represent a unique IP
subnet. You cannot configure the same IP subnet on different VLANs.
3 Assign a VLANid, if any ports in this VLAN will use a tag.
4 Assign one or more ports to the VLAN.
As you add each port to the VLAN, decide if the port will use an 802.1Q tag.
Table 5-2 describes the commands used to configure a VLAN.
Table 5-2: VLAN Configuration Commands
Command Description
create vlan <name> Creates a named VLAN.
create protocol <protocol_name> Creates a user-defined protocol.
Summit.bk : 5VLAN.FM Page 14 Thursday, June 18, 1998 9:27 AM