NAD 3020 manual Trunking Configuration

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Trunking Configuration

Design Guide

(config-if)# channel-group 1 mode active

Configure the passive LACP members on Cisco Catalyst Blade Switch 3020 switch A as follows:

(config) # interface GigabitEthernet0/19

(config-if)# description <<** Connected to Aggregation-1 **>> (config-if)# channel-group 1 mode on

(config) # interface GigabitEthernet0/20

(config-if)# description <<** Connected to Aggregation-1 **>> (config-if)# channel-group 1 mode on

Trunking Configuration

Use the following guidelines when configuring trunks:

●Allow only those that are necessary on the trunk.

●Use IEEE 802.1q trunking.

●Tag all VLANs over a trunk from the aggregation switches.

Configure trunks using the standard encapsulation method IEEE 802.1q as follows:

(config-if)# switchport trunk encapsulation dot1q

Define the VLANs permitted on a trunk as follows:

(config-if)# switchport trunk allowed vlan <VLAN IDs>

Modify the VLANs allowed on a trunk using one of the following commands:

(config-if)# switchport trunk allowed vlan add <VLAN IDs> (config-if)# switchport trunk allowed vlan remove <VLAN IDs>

Define a port as a trunk port as follows:

(config-if)# switchport mode trunk

Note: The autonegotiation of a trunk requires that the ports be in the same VTP domain and be able to pass DTP frames.

To secure and enforce a spanning-tree topology, configure the Root Guard feature on the aggregate-switch interfaces that connect to the blade switches. The following is an example of the interface configuration between the aggregate and blade switch with Root Guard enabled:

(config)# interface GigabitEthernet12/13 (config-if)# description <text> (config-if)# no ip address (config-if)# switchport

(config-if)# switchport trunk encapsulation dot1q (config-if)# switchport trunk native vlan <vlan id> (config-if)# switchport trunk allowed vlan <vlan id> (config-if)# switchport mode trunk

(config-if)# spanning-tree guard root (config-if)# channel-protocol lacp (config-if)# channel-group <group id> mode active

© 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.

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Contents Integrating the Cisco Catalyst Blade Switch 3020 for the HP c-ClassBladeSystem into the Cisco Data Center Network ArchitectureContents HP c-ClassBladeSystem Enclosure Overview IntroductionDesign Guide Design Guide Page 5 of Cisco Catalyst Blade Switch 3020 for HPSpanning Tree Cisco Catalyst Blade Switch 3020 FeaturesDesign Guide Traffic Monitoring Design Guide Figure 5. RSPAN Example Link Aggregation ProtocolsData Center Network Components Data Center Network ArchitectureAggregation Layer Access LayerDesign Goals High AvailabilityHigh Availability Design GuideHigh Availability for the Blade Servers Physical Port Count ScalabilityDesign Guide Slot CountOut-of-BandManagement ManagementSerial Console Port In-BandManagementDesign Guide Network Management Recommendations Design and Implementation DetailsRecommended Topology Primary root switch failure and recovery Configuring the Cisco Catalyst Blade Switch 3020s Configuring the Aggregate SwitchesAdditional Aggregation-SwitchConfiguration Alternative Topology Configuring the Aggregate Switches Configuration DetailsConfiguring the Cisco Catalyst Blade Switch 3020s VLAN Configuration Port-ChannelConfigurationRPVST+ Configuration Inter-SwitchLink ConfigurationTrunking Configuration Server-PortConfiguration Server Default Gateway Configuration Page 28 of RSPAN Configuration
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3020 specifications

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