Design Guide
VLAN Configuration
To configure the VLANs on the switches, complete the following tasks:
Set the VTP administrative domain name and mode and create the
(config)# vtp domain <domain name> (config)# vtp mode transparent (config)# vlan 60
RPVST+ Configuration
Configure Spanning Tree Protocol to manage the physical loops in the topology. Cisco recommended using RPVST+ for its
(config)#
Configure the path cost to use 32 bits in the Spanning Tree Protocol calculations:
(config)#
Configure the primary and secondary root switches as follows:
(config)#
Inter-Switch Link Configuration
The topologies discussed in this guide require connectivity between the switches. The following three types of interswitch connections exist:
●Aggregate 1 to aggregate 2
●Aggregate 1 or aggregate 2 to HP
●HP BladeSystem switch A to switch B
Each of these connections is a Layer 2 Cisco EtherChannel connection consisting of multiple physical interfaces bound together as a channel group or port channel. These
Port-Channel Configuration
Link Aggregate Control Protocol (LACP) is the IEEE standard for creating and managing Cisco EtherChannel connections between switches. Each aggregate switch uses this feature to create a port channel across the line cards. The use of multiple line cards within a single switch reduces the possibility of the
Configure the active LACP members on aggregate 1 to Cisco Catalyst Blade Switch 3020 switch A as follows:
(config)# interface GigabitEthernet12/1
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