Cisco Ethernet switch Operations Instructions download pdf (Page 179)

Chapter 7. Cisco Systems IGESM configuration and network integration 165

Step 1: Taking down the link or links

It is always advisable to disable the link or links prior to making any configuration changes.

See Table 7-1 on page 122 for the needed procedures.

Step 2: Configuring the external switches

The following assumptions have been made for this example:

򐂰 The bulk of the configuration for the 6500s is included in the base configuration (see “Cat

6500 base configurations” on page 109), because the goal of this document is to show

how to configure the BladeCenter components rather than generic Cisco devices. This

section specifically focuses on how to configure the 6500 ports that connect to the

BladeCenter.

򐂰 VLAN 2 has already been created on the 6500s as part of the base configuration.

򐂰 The VTP Domain has already been named and set to transparent as part of the base

configuration.

򐂰 Spanning Tree root commands have already been set as part of the base configuration (to

make 6500-1 the primary root and 6500-3 as the secondary root).

򐂰 The user is already logged on to the switch, and the switch is in enable mode.

򐂰 Commands are being performed in the sequence shown.

򐂰 Cisco Switch Modules in the 6500s being used to connect to the Cisco Systems IGESMs

are 1000Base-T-based, and we will be leaving the ports at 1Gbps full duplex.

򐂰 The aggregation link between the 6500s has already been created as part of the base

config and is carrying the desired VLANs (for example, 2, 10, 15, 20).

Table 7-15 Configuring the external switches

Description and comments On the 6500-1 On the 6500-3

Step 2.1: Configure Link

Aggregations and single link

from the 6500s to the Cisco

Systems IGESMs

This is for the port-channels

between the 6500s and each

of the Cisco Systems

IGESMs. Note that it is

always a good practice to

provide a description to an

interface. Also note that

Spanning-Tree guard root is

added to both the individual

ports and the port-channel to

ensure it is in place.

config t

int range g2/25 - 26

switchport

spanning-tree guard root

description to-BladeCenter CIGESM1

channel-group 2 mode active

This creates a logical interface named

Port-Channel2 and places interfaces

g2/25 and g2/26 into it.

int g2/28

switchport

spanning-tree guard root

description to-BladeCenter CIGESM2

config t

int range g2/25 - 26

switchport

spanning-tree guard root

description to-BladeCenter CIGESM2

channel-group 2 mode active

This creates a logical interface named

Port-Channel2 and places interfaces

g2/25 and g2/26 into it.

int g2/28

switchport

spanning-tree guard root

description to-BladeCenter CIGESM1

1 ... 178 179 180 ... 266

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