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EtherChannels
EtherChannels Cisco offer another method to scale link bandwidth by Aggregation Parallel link turn the ether channel technology. An EtherChannel is a way of combining several physical links between switches into one logical connection. Normally, Spanning Tree blocks redundant links; EtherChannels get around that and enable load balancing across those links. Traffic is balanced between the channel links on the basis of such things as source or destination MAC address or IP address. The EtherChannel load-balancing method is configured at global configuration mode. A logical interface—called the Port Channel interface—is created. Configuration can be applied to both the logical and physical interfaces. Terms for EtherChannel Configuration Can consist up to maximum 8 physical port. All ports must be the same speed and duplex. All ports in the bundle should be enabled. None of the bundle ports can be a SPAN port. Interfaces in the channel do not h...
InterVLAN Routing
VLANs divide the network in to smaller broadcast domains but also prohibit communication between domains. To enable communication, we use InterVLAN Routing. In InterVLAN routing, use two or more VLAN connectivity. InterVLAN routing also called Router on Stick Method. Figure: InterVLAN Routing InterVLAN Routing Configuration Switch Configuration Step 1: Create two VLANs in switch and name it. 1st VLAN Switch#configure terminal Switch(config)#vlan 20 Switch(config-vlan)# name HR Switch(config-vlan)# exit 2nd VLAN Switch#configure terminal Switch(config)#vlan 30 Switch(config-vlan)#name Sales Switch(config-vlan)#exit Step 2: Assign Port with separate VLAN For VLAN 20 Switch(config)#interface e0/1 Switch(config-if)#switchport access vlan 20 Switch(config-if)#exit For VLAN 30 Switch(config)#interface e0/2 Switch(config-if)#switchport access vlan 30 Switch(config-if)#exit Step 3: Trunk the Port Switch(config)#interface e...
