IBM 12.1(22)EA6 User Manual
12-14
Cisco Systems Intelligent Gigabit Ethernet Switch Modules for the IBM BladeCenter, Software Configuration Guide
24R9746
Chapter 12 Configuring VLANs
Configuring VLAN Trunks
For more details about the show command options and explanations of output fields, see the command
reference for this release.
reference for this release.
Configuring VLAN Trunks
These sections describe how VLAN trunks function on the switch:
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•
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Trunking Overview
A trunk is a point-to-point link between one or more Ethernet switch interfaces and another networking device
such as a router or a switch. Gigabit Ethernet trunks carry the traffic of multiple VLANs over a single link,
and you can extend the VLANs across an entire network.
such as a router or a switch. Gigabit Ethernet trunks carry the traffic of multiple VLANs over a single link,
and you can extend the VLANs across an entire network.
The switch supports IEEE 802.1Q, the industry-standard trunking encapsulation.
shows a network of switches that are connected by IEEE 802.1Q trunks.
Table 12-3
VLAN Monitoring Commands
Command
Command Mode
Purpose
show
VLAN configuration
Display status of VLANs in the VLAN database.
show current [vlan-id]
VLAN configuration
Display status of all or the specified VLAN in the
VLAN database.
VLAN database.
show interfaces [vlan
vlan-id]
vlan-id]
Privileged EXEC
Display characteristics for all interfaces or for
the specified VLAN configured on the switch.
the specified VLAN configured on the switch.
show running-config vlan Privileged EXEC
Display all or a range of VLANs on the switch.
show vlan [id vlan-id]
Privileged EXEC
Display parameters for all VLANs or the
specified VLAN on the switch.
specified VLAN on the switch.