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Configuration examples – Brocade BigIron RX Series Configuration Guide User Manual

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BigIron RX Series Configuration Guide

347

53-1002484-04

PVST/PVST+ compatibility

12

Syntax: show span pvst-mode

This command displays the following information.

Configuration examples

The examples use two common configurations:

Untagged IEEE 802.1Q BPDUs on VLAN 1 and tagged PVST+ BPDUs on other VLANs

Tagged IEEE 802.1Q BPDUs on VLAN 1 and untagged BPDUs on another VLAN

Tagged port using default VLAN 1 as its port native VLAN

In

Figure 32

, a PVST+ configuration uses VLAN 1 as the untagged default VLAN and VLANs 2, 3,

and 4 as tagged VLANs.

FIGURE 32

Default VLAN 1 for untagged BPDUs

To implement this configuration, enter the following commands on the device.

BigIron RX(config)# vlan-group 1 vlan 2 to 4

BigIron RX(config-vlan-group-1)# tagged ethernet 1/1

BigIron RX(config-vlan-group-1)# exit

BigIron RX(config)# interface ethernet 1/1

BigIron RX(config-if-e10000-1/1)# pvst-mode

TABLE 81

CLI Display of PVST+ Information

This field...

Displays...

Port

The Brocade port number.
NOTE: The command lists information only for the ports on which

PVST+ support is enabled.

Method

The method by which PVST+ support was enabled on the port. The
method can be one of the following:

Set by configuration – You enabled the support.

Set by auto-detect – The support was enabled automatically when
the port received a PVST+ BPDU.

BigIron RX(config)# show span pvst-mode

PVST+ Enabled on:

Port Method

1/1 Set by configuration

1/2 Set by configuration

2/10 Set by auto-detect

3/12 Set by configuration

4/24 Set by auto-detect

Port3/2

Port1/1

Untagged IEEE BPDU for VLAN 1
Untagged PVST BPDU for VLAN 1
Tagged PVST BPDUs for VLANs 2, 3, 4

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device