Vlans Overview; Vlans And Port Vlan Id Numbers; Vlan Numbers - Lenovo RackSwitch G8264CS Application Manual

VLANs Overview

VLANs and Port VLAN ID Numbers

VLAN Numbers

134
G8264CS Application Guide for ENOS 8.4
Setting up virtual LANs (VLANs) is a way to segment networks to increase
network flexibility without changing the physical network topology. With network
segmentation, each switch port connects to a segment that is a single broadcast
domain. When a switch port is configured to be a member of a VLAN, it is added
to a group of ports (workgroup) that belong to one broadcast domain.
Ports are grouped into broadcast domains by assigning them to the same VLAN.
Frames received in one VLAN can only be forwarded within that VLAN, and
multicast, broadcast, and unknown unicast frames are flooded only to ports in the
same VLAN.
The RackSwitch G8264CS (G8264CS) supports jumbo frames with a Maximum
Transmission Unit (MTU) of 9,216 bytes. Within each frame, 18 bytes are reserved
for the Ethernet header and CRC trailer. The remaining space in the frame (up to
9,198 bytes) comprise the packet, which includes the payload of up to 9,000 bytes
and any additional overhead, such as 802.1q or VLAN tags. Jumbo frame support
is automatic: it is enabled by default, requires no manual configuration, and cannot
be manually disabled.
The G8264CS supports up to 4095 VLANs per switch. Each can be identified with
any number between 1 and 4094. VLAN 1 is the default VLAN for the data ports.
VLAN 4095 is used by the management network, which includes the management
port.
Use the following command to view VLAN information:
RS 8264CS# show vlan
VLAN Name
---- ------------------------
1 Default VLAN
2 VLAN 2
4095 Mgmt VLAN
Status Ports
------ -------------------------
ena 1-64
dis empty
ena MGMT