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IPv6 in Telugu by G Sudhakar

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UPGRADING EOS in the ARISTA Switches

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UPGRADING EOS in the ARISTA Switches: EOS is the Firmware for Arista Switches whereas IOS for Cisco. This blog post shows the detailed procedures to follow and to upgrade the EOS in the Arista Switches. This Post was supports for any platform or the Version you are going to upgrade in the Arista Switches. This Post was divided into three parts : Pre-Upgrade Process Upgrade Process Post-Upgrade Process PRE-UPGRADING-PROCESS: 1       1)        Check the Upgrade Path tool by clicking the below link. https://www.arista.com/en/support/mlag-portal/mlaglist and confirm it is in mlag issu compatible 2)       Check if the  STP agent is restartable by giving the command switch-1# show spanning-tree bridge detail | grep agent Stp agent restartable                      :      ...
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OSI Model in Telugu

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How Virtual Port Channel Avoid Duplicate Frames

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How Virtual Port Channel Avoid Duplicate Frames There is one critical rule with vPC.  If a member port receives a frame, it is forwarded across the peer-link. When the peer switch receives it, it will not forward the frame out a vPC member port . Why does this happen? Have a look at the diagram below. Frames received on a member port, then forwarded across the peer-link, will not be forwarded out another member port There are two servers connected by vPC member ports. Server-1 sends a frame to Server-2. The traffic flows like this: 1.        The frame travels up the link from Server-1 to Peer-1 2.        Peer-1 forwards the frame down the link to Server-2 3.        Peer-1 also forwards the frame across the peer-link to Peer-2 4.        Peer-2 sees that the frame came from a vPC member port, and refuses to forward it to Ser...
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