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
40-20
Cisco MDS 9000 Family CLI Configuration Guide
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Chapter 40 Configuring FCIP
Configuring FCIP
By default, the special frame feature is disabled. You must enable special frames on the interfaces on
both peers to establish the FCIP link.
Note
Refer to the Fibre Channel IP standards for further information on special frames.
Tip
Special frame negotiation provides an additional authentication security mechanism because the link
validates the WWN of the peer switch.
To enable special frames, follow these steps:
Active Connections
You can configure the required mode for initiating a TCP connection. By default, active mode is enabled
to actively attempt an IP connection. If you enable the passive mode, the switch does not initiate a TCP
connection rather waits for the peer to connect to it.
Note
Ensure that both ends of the FCIP link are not configured as passive mode. If both ends are configured
as passive, the connection is not initiated.
To enable the passive mode, follow these steps:
Number of TCP Connections
You can specify the number of TCP connections from an FCIP link. By default, the switch tries two (2)
TCP connections for each FCIP link. You can configure one or two TCP connections. For example, the
Cisco PA-FC-1G Fibre Channel port adapter, which has only one (1) TCP connection, interoperates with
Command
Purpose
Step 1
switch(config-if)#
special-frame peer-wwn
12:12:34:45:ab:bc:cd:00
Enables special frames and sets the peer WWN
as specified.
Note
The peer WWN is the WWN of the peer
switch. Use the
show wwn switch
command to obtain the peer WWN.
switch(config-if)#
no
special-frame peer-wwn
12:12:34:45:ab:bc:cd:00
Disables special frames (default).
Step 2
switch(config-if)#
special-frame peer-wwn
12:12:34:45:ab:bc:cd:00 peer profile-id 155
Enables special frames and sets the peer WWN
and the profile ID (155).
switch(config-if)#
no
special-frame peer-wwn
12:12:34:45:ab:bc:cd:00 peer profile-id 155
Disables special frames (default).
Step 3
switch(config-if)#
no shutdown
Enables the interface.
Command
Purpose
Step 1
switch(config-if)#
passive-mode
Enables passive mode while attempting a TCP connection.
switch(config-if)#
no
passive-mode
Reverts to the factory set default of using the active mode
while attempting the TCP connection.
Step 2
switch(config-if)#
no shutdown
Enables the interface.