Specifications

Chapter 5. IBM System Networking RackSwitch implementation 167
Run show vlan to show the VLANs member ports (Example 5-14).
Example 5-14 Port allocation shown by using the show vlan command
AGG-1#show vlan
VLAN Name Status Ports
---- -------------------------------- ------ -------------------------
1 Default VLAN ena 2-4 6-16 21-64
100 AGG1-AGG2 ena 1 5
101 AGG1-ACC1 ena 17 18
103 AGG1-ACC2 ena 19 20
4095 Mgmt VLAN ena MGT
AGG-1#
VLAN tagging
IBM Networking OS software supports 802.1Q VLAN tagging, which provides
standards-based VLAN support for Ethernet systems. The default configuration settings for
RackSwitch switches have all the ports set as untagged members of VLAN 1 with all ports
configured as PVID = 1.
For a detailed description about tagging and terminology, see Chapter 3, “Reference
architectures” on page 107.
VLAN tagging is required only on ports that are connected to other switches or on ports that
connect to tag-capable endpoints, such as servers with VLAN-tagging adapters.
Tagging is enabled only on the trunk that connects ACC-1 and ACC-2 access switches in the
reference architecture. For more details, see Figure 3-2 on page 111 and Table 3-3 on
page 111.
To enable tagging for a port, run tagging in interface configuration mode (Example 5-15).
Example 5-15 Tagging configuration
ACC-2#configure terminal
ACC-2(config-if)#interface port 5,6
ACC-2(config-if)#tagging
ACC-2(config-if)#^Z
ACC-2#
The port configuration will look like this:
interface port 5
name "ACC1-ACC2"
tagging
exit
!
interface port 6
name "ACC1-ACC2"
tagging
exit
Important: Example 5-13 on page 166 is a template. Complete the configuration of the
ports and VLAN assignment for all the reference architecture switches according to the
details provided in Chapter 3, “Reference architectures” on page 107.