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1. #Network administrator software for mac 2018 how to#
2. #Network administrator software for mac 2018 full#

SW2(config-ra-if)#channel-group 1 mode active Remember, you need to configure the same thing on the other switch too if you want the EtherChannel to get up: SW2(config)#interface range Gi 1/17, Gi 1/19, Gi 1/21, Gi 1/23 SW1(config-ra-if)#channel-group 1 mode activeĬreating a port-channel interface Port-channel 1 I will configure LACP using the command below: SW1(config)#interface range Gi 1/17, Gi 1/19, Gi 1/21, Gi 1/23 There is another, Cisco proprietary PAgP protocol which can be used to make an EtherChannel but this one is rarely used given that we have a standard LACP which is supported widely. Passive Enable LACP only if a LACP device is detectedĪs you can see, there are more options offered when you want to configure EtherChannel 1 mode.ĭifferent modes can enable different LACP protocol way of working and bundling. I took my 4 ports which I connected to other side (Gi 1/17, Gi 1/19, Gi 1/21, Gi 1/23) and enter into interface configuration mode and configure “channel-group”: SW1(config)#interface range Gi 1/17, Gi 1/19, Gi 1/21, Gi 1/23Īuto Enable PAgP only if a PAgP device is detected

#Network administrator software for mac 2018 how to#

Here’s how to do it with the example from above: EtherChannel is enabled by the standardised vendor independent LACP protocol which creates one virtual link out of multiple physical links.ĭepending on the platform and for LACP EtherChannel in case of 3850’s, you can bundle up to 16 interfaces of the same type in the EtherChannel but only up to eight ports can be active at one time. We need to go a step further and simply take those, up to 8 x 1G Interfaces, and configure link aggregation – EtherChannel. With multiple interconnections added and no additional configuration, we created L2 loops between switches and Spanning-tree protocol will block out all but one of those to avoid loops, so no luck with this one. We have another solution and that is the main reason for this article, adding more interconnections between two switches. With new switches like 3850’s and with some money, we can add to both of them a C3850-NM-2-10G network service module which can take u to 4 x 1G optic SFPs or 2x 1G SFPs + 2 x 10G SFPs.īy adding those modules and one 10G SFP on each side, we can increase the interconnection to 10G and solve the congestion issue.

#Network administrator software for mac 2018 full#

In this case, when all of those four clients on the left side start simultaneously sending traffic at full speed to different computers on the right side, they will congest the uplink between switches and some traffic will be dropped. The clients are also connected to 1G ports. For start, those two switches are connected together with 1G copper on Interface Ge1/23. I made an example with 8 clients connected to two Cisco 3850 switches. What Load Balance Algorithm is better when it doesn’t matter?.About Switch Independent Server Side Config.