Table Of Contents

Configuring Interfaces

Configuring Fibre Channel Interfaces

About Interface Modes

E Port

F Port

FL Port

TL Port

TE Port

SD Port

Fx Port

Auto Mode

About Interface States

Administrative States

Operational States

Reason Codes

Configuring FC Interfaces

Configuring a Range of Interfaces

Disabling Interfaces

Configuring Interface Modes

Configuring Administrative Speeds

Configuring Interface Descriptions

Configuring Buffer-to-Buffer Credits

Configuring Receive Data Field Size

Configuring the Beacon Mode

Identifying the Beacon LEDs

Configuring Switchport Defaults

Default Settings

Configuring the Management Interface

Configuring VSAN Interfaces

Displaying Interface Information

Displaying TL Port Information

Configuring Interfaces

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A switch's main function is to relay frames from one data link to another. To do that, the characteristics of the interfaces through which the frames are received and sent must be defined. The configured interfaces can be Fibre Channel interfaces, management interface (mgmt0), or VSAN interfaces.

This chapter describes the basic interface configuration to get your switch up and running. It includes the following sections:

•Configuring Fibre Channel Interfaces

•Default Settings

•Configuring the Management Interface

•Configuring VSAN Interfaces

•Displaying Interface Information

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Note See "Initial Configuration" and "Configuring IP Services," for more information on configuring mgmt0 interfaces.

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Before you begin configuring the switch, you need to ensure that the modules in the chassis are functioning as designed. To verify the status of a module at any time, issue the show module command in EXEC mode (see the "Verifying the Module Status" section).

Configuring Fibre Channel Interfaces

This section describes Fibre Channel interface characteristics, including (but are not limited to) modes, states, and speeds. It includes the following sections:

•About Interface Modes

•About Interface States

•Configuring FC Interfaces

•Configuring a Range of Interfaces

•Disabling Interfaces

•Configuring Interface Modes

•Configuring Administrative Speeds

•Configuring Interface Descriptions

•Configuring Buffer-to-Buffer Credits

•Configuring the Beacon Mode

About Interface Modes

Each physical Fibre Channel interface in a switch may operate in one of several modes: E port, F port, FL port, TL port, TE port, and SD port (see Figure 9-1). Besides these modes, each interface may be configured in auto or Fx port mode. These two modes determine the port type during interface initialization. A brief description of each interface mode follows.

Figure 9-1 Cisco MDS 9000 Family Switch Interface Modes

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Note Interfaces are created in VSAN 1 by default. See "Configuring and Managing VSANs."

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Each interface has an associated administrative configuration and an operational status:

•The administrative configuration does not change unless you modify it. The administrative configuration has various attributes that you can configure in administrative mode.

•The operational status represents the current status of a specified attribute like the interface speed. Operational status cannot be changed and is read-only. Some values may not be valid when the interface is down (for example, the operational speed).

E Port

In expansion port (E port) mode, an interface functions as a fabric expansion port. This port may be connected to another E port to create an Inter-Switch Link (ISL) between two switches. E ports carry frames between switches for configuration and fabric management. They serve as a conduit between switches for frames destined to remote N ports and NL ports. E ports support class 2, class 3, and class F service.

An E port connected to another switch may also be configured to form a PortChannel (see "Configuring PortChannels").

F Port

In fabric port (F port) mode, an interface functions as a fabric port. This port may be connected to a peripheral device (host or disk) operating as an N port. An F port can be attached to only one N port. F ports support class 2 and class 3 service.

FL Port

In fabric loop port (FL port) mode, an interface functions as a fabric loop port. This port may be connected to one or more NL ports (including FL ports in other switches) to form a public arbitrated loop. If more than one FL port is detected on the arbitrated loop during initialization, only one FL port becomes operational and the other FL ports enter nonparticipating mode. FL ports support class 2 and class 3 service.

TL Port

In translative loop port (TL port) mode, an interface functions as a translative loop port. It may be connected to one or more private loop devices (NL ports). TL port mode is specific to Cisco MDS 9000 family switches and have similar properties as FL ports. TL ports enable communication between a private loop device and one of the following devices:

•A device attached to any switch on the fabric

•A device on a public loop anywhere in the fabric

•A device on a different private loop anywhere in the fabric

•A device on the same private loop

See the "Displaying TL Port Information" section. TL ports support class 2 and class 3 services.

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Note Devices attached to TL ports are recommended to be configured in zones which have up to 64 zone members.

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TE Port

In trunking E port (TE port) mode, an interface functions as a trunking expansion port. It may be connected to another TE port to create an Extended ISL (EISL) between two switches. TE ports are specific to Cisco MDS 9000 family switches. They expand the functionality of E ports to support the following:

•VSAN trunking

•Transport quality of service (QoS) parameters

•Fibre Channel trace (fctrace) feature

In TE-port mode, all frames are transmitted in EISL frame format, which contains VSAN information. Interconnected switches use the VSAN ID to multiplex traffic from one or more VSANs across the same physical link. This feature is referred to as trunking in the Cisco MDS 9000 Family (see "Configuring Trunking"). TE ports support class 2, class 3, and class F service.

SD Port

In SPAN destination port (SD port) mode, an interface functions as a switched port analyzer (SPAN). The SPAN feature is specific to switches in the Cisco MDS 9000 Family. It monitors network traffic that passes though a Fibre Channel interface. This monitoring is done using a standard Fibre Channel analyzer (or a similar switch probe) that is attached to an SD port. SD ports do not receive frames, they merely transmit a copy of the source traffic. The SPAN feature is nonintrusive and does not affect switching of network traffic for any SPAN source ports (see "Monitoring Network Traffic Using SPAN").

Fx Port

Interfaces configured as Fx ports are allowed to operate in either F port or FL port mode. The Fx port mode is determined during interface initialization depending on the attached N port or NL port. This administrative configuration disallows interfaces to operate in any other mode—for example, preventing an interface to connect to another switch.

Auto Mode

Interfaces configured as auto are allowed to operate in one of the following modes: F port, FL port, E port, or TE port. The port mode is determined during interface initialization. For example, if the interface is connected to a node (host or disk), it operates in F port or FL port mode depending on the N port or NL port mode. If the interface is attached to a third-party switch, it operates in E port mode. If the interface is attached to another switch in the Cisco MDS 9000 Family, it may become operational in TE port mode (see "Configuring Trunking"). TL ports and SD ports are not determined during initialization and are administratively configured.

About Interface States

The interface state depends on the administrative configuration of the interface and the dynamic state of the physical link.

Administrative States

The administrative state refers to the administrative configuration of the interface as described in Table 9-1.

Table 9-1 Administrative States 

Administrative State	Description
Up	Enables an interface.
Down	Disables an interface. When an interface is administratively disabled (shutdown command), the physical link layer state change is ignored.

Operational States

The operational state indicates the current operational state of the interface as described in Table 9-2.

Table 9-2 Operational States 

Operational State	Description
Up	Interface is transmitting or receiving traffic as desired. To be in this state, an interface must be administratively up, the interface link layer state must be up, and the interface initialization must be completed.
Down	Interface cannot transmit or receive (data) traffic.
Trunking	Interface is operational in TE mode.

Reason Codes

Reason codes are dependent on the operational state of the interface as described in Table 9-3.

Table 9-3 Reason Codes for Interface States 

Administrative Configuration	Operational Status	Reason Code
Up	Up	None.
Down	Down	Administratively down—If you administratively configure an interface as down, you disable the interface. No traffic is received or transmitted.
Up	Down	See Table 9-4.

If the administrative state is up and the operational state is down, the reason code differs based on the nonoperational reason code as described in Table 9-4.

Table 9-4 Reason Codes for Nonoperational States 

Reason Code	Description	Applicable Modes
Link failure or not connected	Physical layer link is not operational.	All
Fcot not present	The Fibre Channel optical transmitter hardware is not plugged in.
Initializing	The physical layer link is operational and the protocol initialization is in progress.
Reconfigure fabric in progress	The fabric is currently being reconfigured.
Offline	Waiting for the specified R_A_TOV time before retrying initialization.
Inactive	The interface VSAN is deleted or is in a suspended state. To make the interface operational, assign that port to a configured and active VSAN.
Hardware failure	A hardware failure is detected.
Error disabled	Error conditions require administrative attention. Interfaces may be error-disabled for various reasons. For example: •Configuration failure. •Incompatible buffer-to-buffer credit configuration. To make the interface operational, you must first fix the error conditions causing this state; and next, administratively configure the interface as shutdown followed by no shutdown.
Isolation due to ELP failure	Port negotiation failed.	Only E ports and TE ports
Isolation due to ESC failure
Isolation due to domain overlap	The Fibre Channel domains (fcdomain) overlap.
Isolation due to domain ID assignment failure	The assigned domain ID is not valid.
Isolation due to other side E port isolated	The E port at the other end of the link is isolated.
Isolation due to invalid fabric reconfiguration	The port is isolated due to fabric reconfiguration.
Isolation due to domain manager disabled	The fcdomain feature is disabled.
Isolation due to zone merge failure	The zone merge operation failed.
Isolation due to VSAN mismatch	The VSANs at both ends of an ISL are different.
Nonparticipating	FL ports cannot participate in loop operations. It may happen if more than one FL port exists in the same loop, in which case all but one FL port in that loop automatically enters nonparticipating mode.	Only FL ports and TL ports
PortChannel administratively down	The interfaces belonging to the PortChannel are down.	Only PortChannel interfaces
Suspended due to incompatible speed	The interfaces belonging to the PortChannel have incompatible speeds.
Suspended due to incompatible mode	The interfaces belonging to the PortChannel have incompatible modes.
Suspended due to incompatible remote switch WWN	An improper connection is detected. All interfaces in a PortChannel must be connected to the same pair of switches.

Configuring 32-port Switching Modules

The 32-port 1/2-Gbps switching module contains 8 port groups of 4 ports each. When configuring these modules the following guidelines apply:

•You can configure only the first port in each 4-port group (for example, the first port in ports 1-4, the fifth port in ports 5-8 and so on) as an E port. If the first port in the group is configured as an E port, the other three ports in each group (ports 2-4, 6-8 and so on) are not usable and remain in the shutdown state.

•If any of the other three ports are configured in a no shutdown state, you cannot configure the first port as an E port. The other three ports continue to remain in a no shutdown state.

•Generally, the default port mode is auto. The auto option is not allowed in a 32-port switching module.

•The default port mode for 32-port switching modules is Fx (Fx negotiates to F or FL).

Configuring FC Interfaces

To configure a Fibre Channel interface, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config)# interface fc1/1	Configures the specified interface.

When a Fibre Channel interface is configured, it is automatically assigned a unique world wide name (WWN). If the interface's operational state is up, it is also assigned a Fibre Channel ID (FC ID).

Configuring a Range of Interfaces

To configure a range of interfaces, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config)# interface fc1/1 - 4 , fc2/1 - 3	Configures the range of specified interfaces. Note In this command, provide a space before and after the comma.

Disabling Interfaces

Interfaces on a port are shut down by default (unless you modified the initial configuration). To enable traffic flow, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config)# interface fc1/1	Configures the specified interface.
Step 3	switch(config-if)# no shutdown switch(config-if)#	Enables traffic flow to administratively allow traffic when the no prefix is used (provided the operational state is up).
	switch(config-if)# shutdown switch(config-if)#	Shuts down the interface and disables traffic flow (default).

Configuring Interface Modes

To configure the interface mode, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config)# interface fc1/1 switch(config-if)#	Configures the specified interface.
Step 3	switch(config-if)# switchport mode F switch(config-if)#	Configures the administrative mode of the port. You can set the operational state to auto, E, F, FL, Fx, TL, or SD port mode. Note Fx ports refers to an F port or an FL port (host connection only), but not E ports.
	switch(config-if)# switchport mode auto switch(config-if)#	Configures the interface mode to auto-negotiate an E, F, FL, or TE port mode (not TL or SD-port modes) of operation. Note TL ports and SD ports cannot be configured automatically. They must be administratively configured.

Configuring Administrative Speeds

By default, the administrative speed for an interface is automatically calculated by the switch. To configure the administrative speed of the interface, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config-if)# switchport speed 1000 switch(config-if)#	Configures the administrative speed of the interface to 1000 Mbps. The number indicates the speed in megabits per second (Mbps). You can set the speed to 1000 Mbps (for 1Gbps interfaces), 2000 Mbps (for 2 Gbps interfaces), or auto (default).
	switch(config-if)# switchport speed auto switch(config-if)#	Reconfigures the factory default (auto) administrative speed of the interface.

Configuring Interface Descriptions

To configure a description for an interface, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config)# interface fc1/1 switch(config-if)#	Configures the specified interface.
Step 3	switch(config-if)# switchport description cisco-HBA2	Configures the description of the interface. The string may be up to 80 characters long.
	switch(config-if)# no switchport description	Clears the description of the interface.

Configuring Buffer-to-Buffer Credits

Buffer-to-buffer credits (BB_credits) are a flow control mechanism to ensure that FC switches do not run out of buffers, since switches must not drop frames. Buffer Credits are negotiated on a per-hop basis.

The receive BB_credit value may be configured for each FC interface. In most cases, you don't need to modify the default configuration.

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Note BB_credits can only be changed on the 16-port switching modules.

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To configure buffer-to-buffer credits to a Fibre Channel interface, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config)# interface fc1/1 switch(config-if)#	Configures the specified interface.
Step 3	switch(config-if)# switchport fcrxbbcredit default switch(config-if)#	Applies the default operational value to the selected interface. The operational value depends on the port mode. The default values are assigned based on the port capabilities.
	switch(config-if)# switchport fcrxbbcredit 5 switch(config-if)#	Assigns a BB_credit of 5 to the selected interface. The range to assign BB_credits is between 1 and 255.
	switch(config-if)# switchport fcrxbbcredit 5 mode E switch(config-if)#	Assigns this value if the port is operating in E or TE mode. The range to assign BB_credits is between 1 and 255.
	switch(config-if)# switchport fcrxbbcredit 5 mode Fx switch(config-if)#	Assigns this value if the port is operating in F or FL mode. The range to assign BB_credits is between 1 and 255.

Configuring Receive Data Field Size

You can also configure the receive data field size for Fibre Channel interfaces by issuing the switchport fcrxbufsize command. The default data field size is 2112 bytes, the frame length will be 2148 bytes.

To configure data field size for a Fibre Channel interface, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config)# interface fc1/1 switch(config-if)#	Configures the specified interface.
Step 3	switch(config-if)# switchport fcrxbufsize 2000 switch(config-if)#	Reduces the data field size for the selected interface to 2000 bytes. The default is 2112 bytes and the range is from 256 to 2112 bytes.

Configuring the Beacon Mode

By default, the beacon mode is disabled on all switches. The beacon mode is indicated by a flashing green light that helps you identify the physical location of the specified interface. The beacon command has no effect on the operation of the interface.

To disable beacon mode for a specified interface or range of interfaces, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config)# interface fc1/1 switch(config-if)#	Configures the specified interface.
Step 3	switch(config-if)# switchport beacon switch(config-if)#	Enables the beacon mode for the interface.
	switch(config-if)# no switchport beacon switch(config-if)#	Disables the beacon mode for the interface.

Identifying the Beacon LEDs

Figure 9-2 displays the status, link, and speed LEDs in a 16-port switching module.

Figure 9-2 Cisco MDS 9000 Family Switch Interface Modes

   

1	Status LED (see the "Identifying Module LEDs" section)	3	Link LEDs (see the "Identifying Module LEDs" section) and speed LEDs (explained in this section).
2	1/2-Gbps Fibre Channel port group (see the "Configuring 32-port Switching Modules" section)	4	Asset tag (See the Cisco MDS 9000 Family Hardware Installation Guide).

Each port has one link LED on the left and one speed LED on the right.

The speed LED displays the speed of the port interface:

•Off—the interface attached to that port is functioning at 1000 Mbps.

•On (solid green)—the interface attached to that port is functioning at 2000 Mbps (for 2 Gbps interfaces).

The speed LED also displays if the beacon mode is enabled or disabled:

•Off—beacon mode is disabled

•On (flashing green)—the beacon mode is enabled. The LED flashes at one-second intervals.

Configuring Switchport Defaults

You can configure default values for various switchport attributes. If you configure the following attributes, they will be applied globally to all future switchport configurations, even if you do not individually specify them at that time.

To configure switchport attributes, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config)# no system default switchport shutdown switch(config-if)#	Disables all ports.
	switch(config)# system default switchport shutdown switch(config-if)#	Reverts the switch to its factory default of all ports being enabled by default.
Step 3	switch(config)# system default switchport trunkmode auto switch(config-if)#	Configures the default administrative trunk mode state for all switchports (The default is on for all ports in trunk mode)

Default Settings

Table 9-5 lists the default settings for Fibre Channel interface parameters.

Table 9-5 Default Fibre Channel Interface Parameters 

Parameters	Default
Interface mode	Auto
Interface speed	Auto
Administrative state	Shutdown (unless changed during initial setup)
Trunk mode	On (unless changed during initial setup)
Trunk-allowed VSANs	1 to 4093
Interface VSAN	Default VSAN (1)
Beacon mode	Off

Configuring the Management Interface

You can remotely configure the switch through the management interface (mgmt0). To configure a connection remotely, you must configure the IP parameters (IP address, subnet mask, and default gateway) from the CLI so that the switch is reachable.

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Note Before you begin to configure the management interface manually, obtain the switch's IP address and IP subnet mask.

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To configure the mgmt0 Ethernet interface, follow these steps:

	Command	Purpose
Step 1	switch# config terminal switch(config)#	Enters configuration mode.
Step 2	switch(config)# interface mgmt0 switch(config-if)#	Configures the management Ethernet interface on the switch to configure the management interface.
Step 3	switch(config-if)# ip address 172.16.1.2 255 255.255.0	Enters the IP address and IP subnet mask for the interface specified in Step 2.
Step 4	switch(config-if)# no shutdown	Enables the interface.
Step 5	switch(config-if)# exit switch(config)#	Returns to configuration mode.
Step 6	switch(config)# ip default-gateway 1.1.1.4 switch(config)#	Configures the default gateway IP address.
Step 7	switch(config)# exit switch#	Returns to EXEC mode.
Step 8	switch# copy running-config startup-config	Saves your configuration changes to the file system. Note This step is optional. If you wish to save your configuration, you can issue this command at any time.

The management port (mgmt0) is autosensing and operates as full duplex mode and 100 Mbps speed. The speed and mode cannot be configured.

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Note You need to explicitly configure a default gateway to connect to the switch and send IP packets or add a route for each subnet.

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Configuring VSAN Interfaces

VSANs apply to Fibre Channel fabrics and enable you to configure multiple isolated SAN topologies within the same physical infrastructure. You can create an IP interface on top of a VSAN. You can then use this interface to send frames to this VSAN. To use this feature, you must configure the IP address for this VSAN. VSAN interfaces cannot be created for nonexisting VSANs.

Follow these guidelines when creating or deleting VSAN interfaces:

•Create a VSAN before creating the interface for that VSAN. If a VSAN does not exist, the interface cannot be created.

•Create the interface using the interface VSAN command. This is not done automatically.

•If you delete the VSAN, the attached interface is automatically deleted.

To create a VSAN interface, follow these steps:

	Command	Purpose
Step 1	switch# config t	Enters configuration mode.
Step 2	switch(config)# interface vsan 5 switch(config-if)#	Configures a VSAN with the ID 5.

You can configure each interface only in one VSAN.

After configuring the VSAN interface, you can configure an IP address or Virtual Router Redundancy Protocol (VRRP) features (see "Configuring IP Services").

Displaying Interface Information

The show interface command is invoked from the EXEC mode and displays the interface configurations. Without any arguments, this command displays the information for all the configured interfaces in the switch. See Examples 9-1 to 9-9.

Example 9-1 Displays All Interfaces

switch# show interface 

fc3/1 is trunking

    Hardware is Fibre Channel

    Port WWN is 20:81:00:05:30:00:12:5e

    Peer port WWN is 22:01:00:05:30:00:12:9e

    Admin port mode is E, trunk mode is auto

    Port mode is TE

    Port vsan is 2

    Speed is 2 Gbps

    Receive B2B Credit is 255

    Receive Buffer Size is 2112

    Beacon is turned off

    Trunk vsans (admin allowed and active) (1-15)

    Trunk vsans (up)                       (1-15)

    Trunk vsans (isolated)                 ()

    Trunk vsans (initializing)             ()

    5 minutes input rate 40 bits/sec, 5 bytes/sec, 0 frames/sec

    5 minutes output rate 24 bits/sec, 3 bytes/sec, 0 frames/sec

      2161 frames input, 182556 bytes, 0 discards

        0 CRC,  0 unknown class

        0 too long, 0 too short

      2164 frames output, 139904 bytes, 0 discards

      1 input OLS, 1 LRR, 1 NOS, 0 loop inits

      2 output OLS, 1 LRR, 1 NOS, 0 loop inits

.

.

.

fc9/9 is up

    Hardware is Fibre Channel

    Port WWN is 22:09:00:05:30:00:12:5e

    Admin port mode is auto, trunk mode is auto

    Port mode is FL, FCID is 0xef0100

    Port vsan is 1

    Speed is 1 Gbps

    Receive B2B Credit is 16

    Receive Buffer Size is 2112

    Beacon is turned off

    5 minutes input rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

    5 minutes output rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

      5 frames input, 560 bytes, 0 discards

        0 CRC,  0 unknown class

        0 too long, 0 too short

      4 frames output, 524 bytes, 0 discards

      0 input OLS, 0 LRR, 0 NOS, 2 loop inits

      2 output OLS, 0 LRR, 1 NOS, 1 loop inits

.

.

.

sup-fc0 is up

    Hardware is Fibre Channel

    Speed is 1 Gbps

    74994 packets input, 8076884 bytes

      0 multicast frames, 0 compressed

      0 input errors, 0 frame, 0 overrun 0 fifo

    74991 packets output, 7689168 bytes, 0 underruns

      0 output errors, 0 collisions, 0 fifo

      0 carrier errors

mgmt0 is up

    Hardware is FastEthernet

    Address is 0005.3000.2c5a

    Internet address is 172.22.90.38/24

    MTU 1500 bytes, Speed is 100 Mbps

    9319 packets input, 738784 bytes

      0 multicast frames, 0 compressed

      0 input errors, 0 frame, 0 overrun 0 fifo

    150 packets output, 34090 bytes, 0 underruns

      0 output errors, 0 collisions, 0 fifo

      0 carrier errors

vsan1 is up, line protocol is up

    WWPN is 10:00:00:05:30:00:12:63, FCID is 0xef001e

    Internet address is 10.10.11.10/24

    MTU 1500 bytes, BW 1000000 Kbit

    0 packets input, 0 bytes, 0 errors, 0 multicast

    0 packets output, 0 bytes, 0 errors, 0 dropped

.

.

.

port-channel 2 is trunking

    Hardware is Fibre Channel

    Port WWN is 24:02:00:05:30:00:26:1e

    Admin port mode is E, trunk mode is on

    Port mode is TE

    Port vsan is 1

    Speed is 4 Gbps

    Trunk vsans (admin allowed and active) (1-5)

    Trunk vsans (up)                       (1-5)

    Trunk vsans (isolated)                 ()

    Trunk vsans (initializing)             ()

    5 minutes input rate 8 bits/sec, 1 bytes/sec, 0 frames/sec

    5 minutes output rate 8 bits/sec, 1 bytes/sec, 0 frames/sec

      3534 frames input, 251672 bytes, 0 discards

        0 CRC, 0 unknown class

        0 too long, 0 too short

      3534 frames output, 176108 bytes, 0 discards

      9 input OLS, 8 LRR, 0 NOS, 0 loop inits

      13 output OLS, 11 LRR, 11 NOS, 0 loop inits

.

.

.

You can also specify arguments to display interface information.

Example 9-2 Displays a Range of Interfaces

switch# show interface fc2/5 - 6 , fc2/9

switch# show int fc2/5 - 10

fc2/5 is trunking

    Hardware is Fibre Channel

    Port WWN is 20:45:00:05:30:00:26:1e

    Peer port WWN is 21:85:00:05:30:00:25:9e

    Admin port mode is E, trunk mode is on

    Port mode is TE

    Port vsan is 1

    Speed is 2 Gbps

    Receive B2B Credit is 255

    Receive Buffer Size is 2112

    Encapsulation is normal

    Beacon is turned off

    Belongs to port-channel 2

    Trunk vsans (admin allowed and active) (1-5)

    Trunk vsans (up)                       (1-5)

    Trunk vsans (isolated)                 ()

    Trunk vsans (initializing)             ()

    5 minutes input rate 8 bits/sec, 1 bytes/sec, 0 frames/sec

    5 minutes output rate 8 bits/sec, 1 bytes/sec, 0 frames/sec

      1542 frames input, 105748 bytes, 0 discards

        0 CRC,  0 unknown class

        0 too long, 0 too short

      1542 frames output, 76656 bytes, 0 discards

      5 input OLS, 5 LRR, 0 NOS, 0 loop inits

      8 output OLS, 6 LRR, 6 NOS, 0 loop inits

fc2/9 is up

    Hardware is Fibre Channel

    Port WWN is 20:49:00:05:30:00:26:1e

    Peer port WWN is 21:89:00:05:30:00:25:9e

    Admin port mode is E, trunk mode is off

    Port mode is E, FCID is 0x7c0000

    Port vsan is 3

    Speed is 2 Gbps

    Receive B2B Credit is 255

    Receive Buffer Size is 2112

    Encapsulation is normal

    Beacon is turned off

    5 minutes input rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

    5 minutes output rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

      624 frames input, 37736 bytes, 0 discards

        0 CRC,  0 unknown class

        0 too long, 0 too short

      625 frames output, 30248 bytes, 0 discards

      3 input OLS, 3 LRR, 2 NOS, 0 loop inits

      7 output OLS, 5 LRR, 5 NOS, 0 loop inits

Example 9-3 Displays a Specific Interface

switch# show interface fc2/9

fc2/9 is up

    Hardware is Fibre Channel

    Port WWN is 20:49:00:05:30:00:26:1e

    Peer port WWN is 21:89:00:05:30:00:25:9e

    Admin port mode is E, trunk mode is off

    Port mode is E, FCID is 0x7c0000

    Port vsan is 3

    Speed is 2 Gbps

    Receive B2B Credit is 255

    Receive Buffer Size is 2112

    Encapsulation is normal

    Beacon is turned off

    5 minutes input rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

    5 minutes output rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

      624 frames input, 37736 bytes, 0 discards

        0 CRC,  0 unknown class

        0 too long, 0 too short

      625 frames output, 30248 bytes, 0 discards

      3 input OLS, 3 LRR, 2 NOS, 0 loop inits

      7 output OLS, 5 LRR, 5 NOS, 0 loop inits

Example 9-4 Displays a VSAN Interface

switch# show int vsan 2

vsan2 is up, line protocol is up

    WWPN is 10:00:00:05:30:00:59:1f, FCID is 0xb90100

    Internet address is 10.1.1.1/24

    MTU 1500 bytes, BW 1000000 Kbit

    0 packets input, 0 bytes, 0 errors, 0 multicast

    0 packets output, 0 bytes, 0 errors, 0 dropped 

Example 9-5 Displays Port Description

switch# show interface description

-------------------------------------------------------------------------------

Interface          Description

-------------------------------------------------------------------------------

fc3/1              test intest

fc3/2              --

fc3/3              --

fc3/4              TE port

fc3/5              --

fc3/6              --

fc3/10             Next hop switch 5

fc3/11             --

fc3/12             --

fc3/16             --

-------------------------------------------------------------------------------

Interface          Description

-------------------------------------------------------------------------------

port-channel 1     --

port-channel 5     --

port-channel 6     --

Example 9-6 Displays Interface Information in a Brief Format

switch# show interface brief

-------------------------------------------------------------------------------

Interface  Vsan   Admin  Admin   Status           Oper  Oper   Port-channel

                  Mode   Trunk                    Mode  Speed

                         Mode                           (Gbps)

-------------------------------------------------------------------------------

fc2/5      1      E      on      trunking         TE    2      port-channel 2 
fc2/6      1      E      on      trunking         TE    2      port-channel 2 
fc2/7      1      E      on      down             --    --     -- 
fc2/8      1      auto   on      fcotAbsent       --    --     -- 
fc2/9      3      E      off     up               E     2      -- 
fc2/12     3      E      on      down             --    --     port-channel 4 
fc3/14     1      SD     --      up               SD    1      -- 
fc9/1      1      auto   on      fcotAbsent       --    --     -- 
fc9/9      1      auto   auto    up               FL    1      -- 
-------------------------------------------------------------------------------

Interface          Status                            Speed

-------------------------------------------------------------------------------

sup-fc0            up                                1

-------------------------------------------------------------------------------

Interface          Status   IP Address               Speed        MTU

-------------------------------------------------------------------------------

mgmt0              up       172.22.90.38/24          100 Mbps     1500

-------------------------------------------------------------------------------

Interface          Status   IP Address               Speed        MTU

-------------------------------------------------------------------------------

vsan1                 up    10.10.11.10/24           1 Gbps       1500

vsan2                 up    10.10.12.10/24           1 Gbps       1500

-------------------------------------------------------------------------------

Interface          Vsan     Admin    Status            Oper   Oper

                            Trunk                      Mode   Speed

                            Mode                              (Gbps)

-------------------------------------------------------------------------------

port-channel 1     1        off      noOperMembers     --     --

port-channel 2     1        on       trunking          TE     4

port-channel 3     3        off      noOperMembers     --     --

Example 9-7 Displays Interface Counters

switch# show interface counters

fc3/1

    5 minutes input rate 24 bits/sec, 3 bytes/sec, 0 frames/sec

    5 minutes output rate 16 bits/sec, 2 bytes/sec, 0 frames/sec

    3502 frames input, 268400 bytes

      0 discards, 0 CRC, 0 unknown class

      0 too long, 0 too short

    3505 frames output, 198888 bytes

      0 discards

    1 input OLS, 1 LRR, 1 NOS, 0 loop inits

    2 output OLS, 1 LRR, 1 NOS, 0 loop inits

    1 link failures, 1 sync losses, 1 signal losses

.

.

.

fc9/8

    5 minutes input rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

    5 minutes output rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

    0 frames input, 0 bytes

      0 class-2 frames, 0 bytes

      0 class-3 frames, 0 bytes

      0 class-f frames, 0 bytes

      0 discards, 0 CRC, 0 unknown class

      0 too long, 0 too short

    0 frames output, 0 bytes

      0 class-2 frames, 0 bytes

      0 class-3 frames, 0 bytes

      0 class-f frames, 0 bytes

      0 discards

    0 input OLS, 0 LRR, 0 NOS, 0 loop inits

    0 output OLS, 0 LRR, 0 NOS, 0 loop inits

    0 link failures, 0 sync losses, 0 signal losses

.

.

.

sup-fc0

    114000 packets input, 11585632 bytes

      0 multicast frames, 0 compressed

      0 input errors, 0 frame, 0 overrun 0 fifo

    113997 packets output, 10969672 bytes, 0 underruns

      0 output errors, 0 collisions, 0 fifo

      0 carrier errors

mgmt0

    31557 packets input, 2230860 bytes

      0 multicast frames, 0 compressed

      0 input errors, 0 frame, 0 overrun 0 fifo

    26618 packets output, 16824342 bytes, 0 underruns

      0 output errors, 0 collisions, 7 fifo

      0 carrier errors

vsan1

    0 packets input, 0 bytes, 0 errors, 0 multicast

    0 packets output, 0 bytes, 0 errors, 0 dropped

.

.

.

port-channel 1

    5 minutes input rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

    5 minutes output rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

    0 frames input, 0 bytes

      0 class-2 frames, 0 bytes

      0 class-3 frames, 0 bytes

      0 class-f frames, 0 bytes

      0 discards, 0 CRC, 0 unknown class

      0 too long, 0 too short

    0 frames output, 0 bytes

      0 class-2 frames, 0 bytes

      0 class-3 frames, 0 bytes

      0 class-f frames, 0 bytes

      0 discards

    0 input OLS, 0 LRR, 0 NOS, 0 loop inits

    0 output OLS, 0 LRR, 0 NOS, 0 loop inits

    0 link failures, 0 sync losses, 0 signal losses

---

Note Interfaces 9/8 and 9/9 are not trunking ports and display class 2, 3, and F information as well.

---

Example 9-8 Displays Interface Counters in Brief Format

switch# show interface counters brief

-------------------------------------------------------------------------------

Interface          Input (rate is 5 min avg)      Output (rate is 5 min avg)

                   -----------------------------  -----------------------------

                   Rate     Total                 Rate     Total

                   Mbits/s  Frames                Mbits/s  Frames

-------------------------------------------------------------------------------

fc3/1              0        3871                  0        3874

fc3/2              0        3902                  0        4232

fc3/3              0        3901                  0        4138

fc3/4              0        3895                  0        3894

fc3/5              0        3890                  0        3897

fc9/8              0        0                     0        0

fc9/9              0        5                     0        4

fc9/10             0        4186                  0        4182

fc9/11             0        4331                  0        4315

-------------------------------------------------------------------------------

Interface          Input (rate is 5 min avg)      Output (rate is 5 min avg)

                   -----------------------------  -----------------------------

                   Rate     Total                 Rate     Total

                   Mbits/s  Frames                Mbits/s  Frames

-------------------------------------------------------------------------------

port-channel 1     0        0                     0        0

port-channel 2     0        3946                  0        3946

Example 9-9 Displays Transceiver Information

switch# show interface transceiver 

.

.

.

fc9/6 fcot is present

    name is CISCO-AGILENT

    part number is QFBR-5796L

    revision is

    serial number is A00156980

    basic id fields (bytes 0-63)

      0x03 0x04 0x07 0x00 0x00 0x00 0x00 0x20

      0x40 0x0C 0x05 0x01 0x15 0x00 0x00 0x00

      0x1E 0x0F 0x00 0x00 0x43 0x49 0x53 0x43

      0x4F 0x2D 0x41 0x47 0x49 0x4C 0x45 0x4E

      0x54 0x20 0x20 0x20 0x00 0x00 0x30 0xD3

      0x51 0x46 0x42 0x52 0x2D 0x35 0x37 0x39

      0x36 0x4C 0x20 0x20 0x20 0x20 0x20 0x20

      0x20 0x20 0x20 0x20 0x00 0x00 0x00 0x86

    extended id fields (bytes 64-95)

      0x00 0x1A 0x00 0x00 0x41 0x30 0x30 0x31

      0x35 0x36 0x39 0x38 0x30 0x20 0x20 0x20

      0x20 0x20 0x20 0x20 0x30 0x32 0x30 0x38

      0x32 0x30 0x20 0x20 0x00 0x00 0x00 0x44

    vendor specific data (bytes 96-127)

      0x00 0x00 0x06 0x36 0x31 0x8D 0x23 0xB5

      0x8E 0xC2 0x13 0x9E 0xAC 0x57 0x47 0xB8

      0xAB 0x37 0x19 0x00 0x00 0x00 0x00 0x00

      0x00 0x00 0x00 0x00 0x01 0x7D 0x67 0x74

fc9/7 fcot is present but not supported

    name is IBM

    part number is IBM42P21SNY

    revision is AA20

    serial number is 53P1487000WDN

    basic id fields (bytes 0-63)

      0x03 0x00 0x07 0x00 0x00 0x00 0x00 0x20

      0x40 0x0C 0x05 0x01 0x15 0x00 0x00 0x00

      0x1E 0x0F 0x00 0x00 0x49 0x42 0x4D 0x20

      0x20 0x20 0x20 0x20 0x20 0x20 0x20 0x20

      0x20 0x20 0x20 0x20 0x00 0x08 0x00 0x5A

      0x49 0x42 0x4D 0x34 0x32 0x50 0x32 0x31

      0x53 0x4E 0x59 0x20 0x20 0x20 0x20 0x20

      0x41 0x41 0x32 0x30 0x00 0x00 0x00 0x07

    extended id fields (bytes 64-95)

      0x00 0x1A 0x05 0x05 0x35 0x33 0x50 0x31

      0x34 0x38 0x37 0x30 0x30 0x30 0x57 0x44

      0x4E 0x20 0x20 0x20 0x30 0x32 0x30 0x35

      0x31 0x30 0x30 0x31 0x00 0x00 0x00 0x12

    vendor specific data (bytes 96-127)

      0x49 0x42 0x4D 0x20 0x53 0x46 0x50 0x53

      0x20 0x41 0x52 0x45 0x20 0x43 0x4C 0x41

      0x53 0x53 0x20 0x31 0x20 0x4C 0x41 0x53

      0x45 0x52 0x20 0x53 0x41 0x46 0x45 0x20

.

.

.

Displaying TL Port Information

Private loop devices refer to legacy devices that reside on arbitrated loops. These devices are not aware of a switch fabric since they only communicate with devices on the same physical loop.

The legacy devices are used in Fibre Channel networks and devices outside the loop may need to communicate with them.The communication functionality is provided through TL ports.

Use the switchport mode command to configure a TL port (see the "Configuring Interface Modes" section).

The show tlport command displays the TL port interface configurations. This command provides a list of all TL ports configured on a box and shows the associated VSAN, the FC ID for the port (only domain and area are valid), and the current operational state of the TL port (up or initializing). See Examples 9-10 to 9-9.

Example 9-10 Displays the TL Ports in All VSANs

switch# show tlport list 

------------------------------- 

Interface Vsan FC-ID    State 

------------------------- ------ 

fc1/16    1    0x420000 Init 

fc2/26    1    0x150000 Up 

TL ports allow a private device (devices that physically reside on the loop) to see a fabric device and vice-versa by proxying fabric devices on the loop. Fabric devices are proxied by allocating each fabric device an ALPA on this loop.

In addition to these proxied devices, other virtual devices (local or remote domain controller addresses) are also allocated ALPAs on the loop. A switch reserves the ALPA for its own communication with private devices, and the switch acts as a SCSI Initiator.

The first column in the output of the show tlport interface command is the ALPA identity of the device on the loop. The second lists the port WWNs, the third lists the node WWNs for each device, the fourth identifies the device as a SCSI initiator or target, and the last column is the real FC ID of the device.

Example 9-11 Displays the Detailed Information for a Specific TL Port

switch# show tlport interface fc1/16 all 

fc1/16 is up, vsan 1, FCID 0x420000 

--------------------------------------------------------------------------------  
alpa pWWN                    nWWN                    SCSI Type Device  FC-ID  
--------------------------------------------------------------------------------  
0x01 20:10:00:05:30:00:4a:de 20:00:00:05:30:00:4a:de Initiator Proxied 0xfffc42  
0x73 22:00:00:20:37:39:ae:54 20:00:00:20:37:39:ae:54 Target    Private 0x420073  
0xef 20:10:00:05:30:00:4a:de 20:00:00:05:30:00:4a:de Initiator Switch  0x0000ef 

Example 9-12 Displays TL Port Information for Private Devices

switch# show tlport int fc1/16 pri 

fc1/16 is up, vsan 1, FCID 0x420000 

------------------------------------------------------------------------ 

alpa pWWN                    nWWN                    SCSI Type FC-ID 
------------------------------------------------------------------------ 

0x73 22:00:00:20:37:39:ae:54 20:00:00:20:37:39:ae:54 Target    0x420073 

0x74 22:00:00:20:37:38:d3:de 20:00:00:20:37:38:d3:de Target    0x420074 

Example 9-13 Displays TL Port Information for Proxied Devices

switch# show tlport int fc1/16 prox 

fc1/16 is up, vsan 1, FCID 0x420000 

------------------------------------------------------------------------ 

alpa pWWN                    nWWN                    SCSI Type FC-ID 
------------------------------------------------------------------------ 

0x01 20:10:00:05:30:00:4a:de 20:00:00:05:30:00:4a:de Initiator 0xfffc42 

0x02 21:00:00:e0:8b:01:95:e7 20:00:00:e0:8b:01:95:e7 Initiator 0x420100