Configuring Promiscuous Mode; Verifying Gigabit Ethernet Connectivity - Cisco MDS 9000 series Configuration Manual

Verifying Gigabit Ethernet Connectivity

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
You do not need to explicitly issue the shutdown and no shutdown commands.
To configure the MTU frame size, 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 mtu 3000

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

Verifying Gigabit Ethernet Connectivity

Once the Gigabit Ethernet interfaces are connected with valid IP addresses, verify the interface
connectivity on each switch. Ping the IP host using the IP address of the host to verify that the static IP
route is configured correctly.
Note If the connection fails, verify the following, and ping the IP host again:
- The IP address for the destination (IP host) is correctly configured.
- The host is active (powered on).
- The IP route is configured correctly.
- The IP host has a route to get to the Gigabit Ethernet interface subnet.
- The Gigabit Ethernet interface is in the up state.
Use the ping command to verify the Gigabit Ethernet connectivity (see
command sends echo request packets out to a remote device at an IP address that you specify (see the
"Using the ping and ping ipv6 Commands" section on page
Cisco MDS 9000 Family NX-OS IP Services Configuration Guide
7-4
Chapter 7 Configuring IPv4 for Gigabit Ethernet Interfaces
Purpose
Enters configuration mode.
Enters the interface configuration mode on the
Gigabit Ethernet interface (slot 2, port 2).
Changes the MTU size to 3000 bytes. The
default is 1500 bytes.
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.
Example
2-15).
OL-19525-01,Cisco MDS NX-OS Release 4.2(1)
7-1). The ping