Cisco Catalist 3850 Series Configurazione delle impostazioni di rete - Pagina 5

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Configuring VLANs

Deleting a VLAN, on page 14

Assigning Static-Access Ports to a VLAN, on page 17

Monitoring VLANs, on page 26

Creating an Extended-Range VLAN, on page 20

Creating an Extended-Range VLAN with an Internal VLAN ID, on page 23

Monitoring VLANs, on page 26

Creating or Modifying an Ethernet VLAN, on page 11

Deleting a VLAN, on page 14

Assigning Static-Access Ports to a VLAN, on page 17

Monitoring VLANs, on page 26

Creating an Extended-Range VLAN, on page 20

Creating an Extended-Range VLAN with an Internal VLAN ID, on page 23

Monitoring VLANs, on page 26

VLAN Port Membership Modes

You configure a port to belong to a VLAN by assigning a membership mode that specifies the kind of traffic

the port carries and the number of VLANs to which it can belong.

When a port belongs to a VLAN, the switch learns and manages the addresses associated with the port on a

per-VLAN basis.

Table 1: Port Membership Modes and Characteristics

Membership Mode

Static-access

Trunk (IEEE 802.1Q) :

OL-29322-01

• IEEE 802.1Q—

Industry-standard trunking

encapsulation.

Consolidated Platform Configuration Guide, Cisco IOS XE Release 3SE (Catalyst 3850 Switches)

VLAN Membership Characteristics

A static-access port can belong to

one VLAN and is manually

assigned to that VLAN.

A trunk port is a member of all

VLANs by default, including

extended-range VLANs, 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 Port Membership Modes

VTP Characteristics

VTP is not required. If you do not

want VTP to globally propagate

information, set the VTP mode to

transparent. To participate in VTP,

there must be at least one trunk port

on the switch or the switch stack

connected to a trunk port of a

second switch or switch stack.

VTP is recommended but not

required. 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.