8-7
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
78-6511-05
Chapter 8 Configuring VLANs
Assigning VLAN Port Membership Modes
Assigning VLAN Port Membership Modes
You configure a port to belong to a VLAN by assigning a membership mode that
determines the kind of traffic the port carries and the number of VLANs it can
belong to. Table 8-2 lists the membership modes and characteristics.
Table 8-2 Port Membership Modes
Membership Mode VLAN Membership Characteristics
Static-access A static-access port can belong to one VLAN and is manually assigned. By
default, all ports are static-access ports assigned to VLAN 1.
Multi-VLAN A multi-VLAN port can belong to up to 250 VLANs (some models only support
64 VLANs) and is manually assigned. You cannot configure a multi-VLAN port
when a trunk is configured on the switch. VLAN traffic on the multi-VLAN port
is not encapsulated.
Trunk (ISL, ATM,
or
IEEE 802.1Q)
A trunk is a member of all VLANs in the VLAN database by default, but
membership can be limited by configuring the allowed-VLAN list. You can also
modify the pruning-eligible list to block flooded traffic to VLANs on trunk ports
that are included in the list.
VLAN Trunk Protocol (VTP) maintains VLAN configuration consistency by
managing the addition, deletion, and renaming of VLANs on a network-wide
basis. VTP exchanges VLAN configuration messages with other switches over
trunk links.
Note By using the Asynchronous Transfer Mode (ATM) module CLI, you
can map the LAN emulation (LANE) client to a VLAN or bind one or
more permanent virtual connections (PVCs) to a VLAN. The VLAN
ID is then displayed in the Assigned VLANs column of the VLAN
Membership window. An ATM port can only be a trunk port. For more
information, refer to the Catalyst 2900 Series XL ATM Modules
Installation and Configuration Guide.
Dynamic access A dynamic-access port can belong to one VLAN and is dynamically assigned by
a VLAN Membership Policy Server (VMPS). The VMPS can be a Catalyst 5000
series switch but never a Catalyst 2900 XL or Catalyst 3500 XL switch.
To Next Page
Loading...
