Switching Commands
70
M4100 Series ProSAFE Managed Switches
show interfaces switchport (for a group ID)
This command displays the status of the interface (protected/unprotected) under the groupid.
• Privileged EXEC
• User EXEC
Private VLAN Commands
The Private VLANs feature separates a regular VLAN domain into two or more subdomains.
Each subdomain is defined (represented) by a primary VLAN and a secondary VLAN. The
primary VLAN ID is the same for all subdomains that belong to a private VLAN. The
secondary VLAN ID differentiates subdomains from each other and provides Layer 2 isolation
between ports of the same private VLAN. The types of VLANs within a private VLAN are as
follows:
• Primary VLAN—Forwards the traf
fic from the promiscuous ports to isolated ports,
community ports, and other promiscuous ports in the same private VLAN. Only one
primary VLAN can be configured per private VLAN. All ports within a private VLAN share
primary VLAN.
• Isolated VLAN—A secondary VLAN that carries traf
fic from isolated ports to promiscuous
ports. Only one isolated VLAN can be configured per private VLAN.
• Community VLAN—A secondary VLAN that forwards traf
fic between ports that belong to
the same community and the promiscuous ports. There can be multiple community
VLANs per private VLAN.
Term Definition
Group ID The number that identifies the protected port group.
Name An optional name of the protected port group. The name can be up to 32 alphanumeric
characters long, including blanks. The default is blank.
List of Physical
Ports
List of ports, which are configured as protected for the group identified with <groupid>. If
no port is configured as protected for this group, this field is blank.
Format show interfaces switchport <slot/port> <groupid>
Mode
Term Definition
Name A string associated with this group as a convenience. It can be up to 32 alphanumeric
characters long, including blanks. The default is blank. This field is optional.
Protected port Indicates whether the interface is protected or not. It shows TRUE or FALSE. If the group
is a multiple groups then, it shows TRUE in Group <groupid>.
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