Configuring Promiscuous Mode; About Vlans For Gigabit Ethernet - Cisco DS-X9530-SF1-K9 - Supervisor-1 Module - Control Processor Configuration Manual

Chapter 37 Configuring IP Storage
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .

Configuring Promiscuous Mode

You can enable or disable promiscuous mode on a specific Gigabit Ethernet interface. By enabling the
promiscuous mode, the Gigabit Ethernet interface receives all the packets and the software then filters
and discards the packets that are not destined for that Gigabit Ethernet interface.
To configure the promiscuous mode, follow these steps:
Command
Step 1
switch# config terminal
switch(config)#
Step 2
switch(config)# interface gigabitethernet 2/2
switch(config-if)#
Step 3
switch(config-if)# switchport promiscuous-mode
on
switch(config-if)# switchport promiscuous-mode
off
switch(config-if)# no switchport
promiscuous-mode

About VLANs for Gigabit Ethernet

Virtual LANs (VLANs) create multiple virtual Layer 2 networks over a physical LAN network. VLANs
provide traffic isolation, security, and broadcast control.
Gigabit Ethernet ports automatically recognize Ethernet frames with IEEE 802.1Q VLAN
encapsulation. If you need to have traffic from multiple VLANs terminated on one Gigabit Ethernet port,
configure subinterfaces—one for each VLAN.
If the IPS module or MPS-14/2 module is connected to a Cisco Ethernet switch, and you need to have
Note
traffic from multiple VLANs coming to one IPS port, verify the following requirements on the Ethernet
switch:
- The Ethernet switch port connected to the IPS module or MPS-14/2 module is configured as a trunking
port.
- The encapsulation is set to 802.1Q and not ISL, which is the default.
Use the VLAN ID as a subscription to the Gigabit Ethernet interface name to create the subinterface
name (the
OL-6973-03, Cisco MDS SAN-OS Release 2.x
<slot-number>/<port-number>.<VLAN-ID>
Configuring Gigabit Ethernet Interfaces
Purpose
Enters configuration mode.
Enters the interface configuration mode on the
Gigabit Ethernet interface (slot 2, port 2).
Enables promiscuous mode for this Gigabit
Ethernet interface. The default is off.
Disables (default) promiscuous mode for this
Gigabit Ethernet interface.
Disables (default) the promiscuous mode for
this Gigabit Ethernet interface.
).
Cisco MDS 9000 Family Configuration Guide
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