Operating instructions

142 Cisco Systems Intelligent Gigabit Ethernet Switch Module
Step 3: Configuring Cisco Systems IGESMs
This section steps through the sequence of actions required to configure the Cisco Systems
IGESMs for this example. It is broken into two major sections, one for configuring the Cisco
Systems IGESM in bay 1 and one for configuring the Cisco Systems IGESM in bay 2.
The following assumptions have been made for both Cisco Systems IGESM configurations in
this example:
򐂰 The user is already logged on to the Cisco Systems IGESM, and the switch is in enable
mode (or logged on to CMS and using the GUI therein).
򐂰 Commands are being performed in the sequence shown.
򐂰 The Cisco Systems IGESM is starting from a base configuration per the example shown in
“Cisco Systems IGESM base configurations” on page 108.
򐂰 The operating systems in use on the blade servers are Windows 2000. This is important,
because which port is considered
first and which port is considered second on a blade
server has several dependences, not the least of which is the operating system in use. For
an explanation of the blade servers connection names and how they are derived, see
Appendix A, “Hints and tips” on page 227.
Step 2.2: Configure VLAN
and trunking options
.
All desired VLANs were
already created as part of the
base configuration, and IP
addresses were added at
that time. This step sets up
the aggregated links created
in step 2.1 to be 802.1Q
trunks and allows the desired
VLANs to be carried.
Note the different VLANs on
the different aggregations. As
noted previously, controlling
VLANs is considered a good
security practice (although it
might increase the amount of
work for network
administrators).
int port-channel 2
description EtherChannel to CIGESM1
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport trunk allowed vlan
2,10,15,30,35,40,45,50
switchport mode trunk
spanning-tree guard root
Note: Configuring root guard on the port
channel interface between 6500s and the
Cisco Systems IGESMs will help to
ensure stability in your network.
int port-channel 3
description EtherChannel to CIGESM2
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport trunk allowed vlan
2,20,25,30,35,40,45,50
switchport mode trunk
spanning-tree guard root
end
int port-channel 2
description EtherChannel to CIGESM1
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport trunk allowed vlan
2,10,15,30,35,40,45,50
switchport mode trunk
spanning-tree guard root
Note: Configuring root guard on the port
channel interface between 6500s and the
Cisco Systems IGESMs will help to
ensure stability in your network.
int port-channel 3
description EtherChannel to CIGESM2
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport trunk allowed vlan
2,20,25,30,35,40,45,50
switchport mode trunk
spanning-tree guard root
end
Step 2.3:
Save configuration
to NVRAM
.
Note: Failure to save your
configuration will result in
possible network down
conditions if the switch is
restarted prior to the save (all
changes since the last save
will be lost).
copy running-config startup-config copy running-config startup-config
Description and comments On the 6500-1 On the 6500-3