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Chapter 7. Nortel Networks L2/3 GbESM configuration and network integration 71
Summary of disconnect procedure to be performed for each example
When performing initial configurations or making changes to existing configurations that
might have an impact on Spanning Tree (such as changing link aggregation), it is
recommended that you leave connections uncabled or shut down prior to making the
configuration changes. This reduces the likelihood of any temporary Spanning Tree loops
and possible network-down conditions that might result in the process of adding or changing
configurations.
Shut down the ports on GbESM_1 and GbESM_2
/oper/port EXT1/dis
/oper/port EXT2/dis
Shut down the ports on Core1 and Core2
conf t
int range g0/1-2
shut
Cisco 3560G switch configuration
In this topology, each Cisco switch connects two ports (g0/1 and g0/2) to its adjoining Nortel
GbESM (EXT1 and EXT2). These aggregated links are to carry VLAN 5, 10, 20, and 99.
VLAN 99 is meant to be a management VLAN, and the only blade server in the chassis to
have access to it is blade server 4. The native VLAN here is 5.
In the switch configuration mode, create the VLANs and IP interfaces first, as shown in
Example 7-1.
Example 7-1 Create the VLANs and IP interfaces first
:
conf t
!
vlan 5
name native
vlan 10
name vlan_green
vlan 20
name vlan_red
vlan 99
name mgmt
By issuing do sh vlan, you can see the intended VLAN layout, as shown in Example 7-2.
Example 7-2 Verifying the VLAN setup
Core1(config)#do sh vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi0/3, Gi0/4, Gi0/5, Gi0/6
Gi0/7, Gi0/8, Gi0/9, Gi0/10
Gi0/11, Gi0/12, Gi0/13, Gi0/14
Gi0/15, Gi0/16, Gi0/17, Gi0/18
Gi0/19, Gi0/20, Gi0/21, Gi0/22
Gi0/25, Gi0/26, Gi0/27, Gi0/28
5 native active
10 vlan_green active
20 vlan_red active
99 mgmt active
1002 fddi-default act/unsup