Cisco Nexus 4001I and 4005I Switch Module for IBM BladeCenter NX-OS Configuration Guide
SoL Features and Concepts and Configuring CIN
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SoL Features and Concepts and Configuring CIN

Table Of Contents

SoL Features and Concepts and Configuring CIN

Information About Serial over LAN Management VLAN

Configuration Restrictions

CIN VLAN Configuration

Associating a VLAN as a CIN VLAN

Disassociating a CIN VLAN

Deleting a VLAN Configured as CIN

Adding CIN VLAN Configuration on a Port

Deleting CIN VLAN

Verifying CIN VLAN Configuration

Displaying the CIN VLAN Association

Viewing SoL and CIN Traffic Counters


SoL Features and Concepts and Configuring CIN


This chapter describes features and concepts for Serial over LAN (SoL) and Chassis Internal Network (CIN) VLAN configuration for the Cisco Nexus 4001I and 4005I Switch Module for IBM BladeCenter and includes the following sections:

Information About Serial over LAN Management VLAN

Configuration Restrictions

Verifying CIN VLAN Configuration

Information About Serial over LAN Management VLAN

This section describes the SoL management VLAN features.

The switch is managed through the Advanced Management Module (AMM) in the chassis as well as from the management port on the front faceplate.

The 14 (12 for IBM Blade Center HT) Blade Servers hosted on a chassis are also managed through the AMM. The switch provides the switching for traffic between the Ethernet interface on the Blade Servers and the AMM. For an overview of the SoL management VLAN feature, see Figure 31-1.

Figure 31-1 SoL Management VLAN Feature Overview

All unicast, multicast, and broadcast traffic between the IBM-AMM and the Blade Servers are switched at Layer 2.

The IBM-AMM and the Blade Servers communicate over a VLAN configured by the administrator. The default VLAN is 4095.


Note In this release, the default VLAN is 4095, and it is always enabled.


Apart from the SoL management VLANs, 14 other CIN VLANs can be configured on specific ports for communication between the AMM and the corresponding Blade Servers.

VLAN tagged frames are relayed between the Blade Servers and AMM without any changes.

To avoid disruption of traffic between the AMM and the Blade Servers, this feature cannot be turned off.

No management traffic is switched to and from the uplink ports and the out-of-band management port that are located on the front panel of the switch.

Configuration Restrictions

This section lists the restrictions to note during configuration.

The user interface for the switch to support CIN VLANs is through the IBM-AMM. The CIN VLAN can also be configured using the CLI of the out-of-band management port on the front panel of the switch.

The switch supports 10Mbps of SoL, cKVM, and CIN traffic.

For SoL and CIN traffic to be switched correctly between the downlink ports (backplane ports) and the backplane management port, the corresponding downlink ports must be set up in the trunkmode (switchport mode trunk) as a prerequisite.

CIN VLAN Configuration

This section shows how to configure CIN VLAN. It includes the following topics:

Associating a VLAN as a CIN VLAN

Disassociating a CIN VLAN

Deleting a VLAN Configured as CIN

Adding CIN VLAN Configuration on a Port

Deleting CIN VLAN

Associating a VLAN as a CIN VLAN

To configure CIN VLAN, perform this task:

 
Command
Purpose

Step 1 

switch# configure terminal

Enters configuration mode.

Step 2 

switch(config)# vlan {vlan-id | vlan-range}

Enters VLAN submode.

Step 3 

switch(config-vlan)# cin

Associates the VLAN as CIN VLAN.

The following example shows how to associate a VLAN as a CIN VLAN:

switch# configure terminal

switch(config)#
switch(config)# vlan 3
switch(config-vlan)#
switch(config-vlan)# cin
switch(config-vlan)#

Disassociating a CIN VLAN

To disassociate a CIN VLAN, perform this task:

 
Command
Purpose

Step 1 

switch# configure terminal

Enters configuration mode.

Step 2 

switch(config)# vlan {vlan-id | vlan-range}

Enters VLAN submode.

Step 3 

switch(config-vlan)# no cin

Disassociates the CIN VLAN.

The following example shows how to disassociate a CIN VLAN:

switch# configure terminal

switch(config)#
switch(config)# vlan 3
switch(config-vlan)#
switch(config-vlan)# no cin
switch(config-vlan)#

Deleting a VLAN Configured as CIN

To delete a CIN VLAN, perform this task:

 
Command
Purpose

Step 1 

switch# configure terminal

Enters configuration mode.

Step 2 

switch(config)# no vlan {vlan-id | vlan-range}

Deletes the CIN VLAN configuration.

The following example shows how to delete a configured CIN VLAN:

switch# configure terminal

switch(config)#
switch(config)# vlan 3
switch(config-vlan)#
switch(config-vlan)# cin
switch(config-vlan)#
switch(config-vlan)# no vlan 3
switch(config)#

Adding CIN VLAN Configuration on a Port

To add CIN VLAN on an existing trunk VLAN port configuration, perform this task:

 
Command
Purpose

Step 1 

switch# configure terminal

Enters configuration mode.

Step 2 

switch(config)# interface ethernet slot/port

Enter interface configuration mode. The port numbers can be 1-20.

Step 3 

switch(config-if)# switchport trunk allowed vlan add vlan id

Add the CIN VLAN to the allowed VLAN list for an interface. The VLAN IDs when this port is in trunking mode can be 1-3967, 4048-4093.

The following example shows how to add CIN VLAN configuration on an Ethernet port:

switch# configure terminal
switch(config)# interface ethernet 1/20
switch(config-if)# switchport trunk allowed vlan add 3967
switch(config-if)#

Deleting CIN VLAN

To delete CIN VLAN from an existing trunk VLAN port configuration, perform this task:

 
Command
Purpose

Step 1 

switch# configure terminal

Enters configuration mode.

Step 2 

switch(config)# interface ethernet slot/port

Enters interface configuration mode.

Step 3 

switch(config-if)# switchport trunk allowed vlan remove vlan id

Removes the CIN VLAN from the allowed VLAN list for an interface.

The following example shows how to delete CIN VLAN from an existing trunk VLAN port configuration:

switch# configure terminal
switch(config)# interface ethernet 1/20
switch(config-if)# switchport trunk allowed vlan remove 3967
switch(config-if)#

Verifying CIN VLAN Configuration

This section includes the following topics:

Displaying the CIN VLAN Association

Viewing SoL and CIN Traffic Counters

Displaying the CIN VLAN Association

To display a CIN VLAN association, perform this task:

 
Command
Purpose

Step 1 

switch# show solm cin

Displays the CIN VLANs association.

The following is sample output from the show solm cin command:

switch# show solm cin
20-24,26-33,100

Viewing SoL and CIN Traffic Counters

To view SoL and CIN traffic counters, perform this task:

 
Command
Purpose

Step 1 

switch# show solm counters [interface ethernet slot/port | mgmt port]

Displays the SoL and CIN unicast and multicast counters associated with interfaces.

The following is sample output from the show solm counters command:

switch# show solm counters
----------------------------------------------------------------------
Interface           TX-UCast      TX-MCast      RX-UCast      RX-MCast
----------------------------------------------------------------------
mgmt1               0             0             0             0
Ethernet1/1         0             0             0             0
Ethernet1/2         0             0             0             0
Ethernet1/3         0             0             0             0
Ethernet1/4         0             0             0             0
Ethernet1/5         0             0             0             0
Ethernet1/6         0             0             0             0
Ethernet1/7         0             0             0             0
Ethernet1/8         0             0             0             0
Ethernet1/9         0             0             0             0
Ethernet1/10        0             0             0             0
Ethernet1/11        0             0             0             0
Ethernet1/12        0             0             0             0
Ethernet1/13        0             0             0             0
Ethernet1/14        0             0             0             0