Making fiber optic link with 100 Gb/s optics, you have to consider FEC (Forward error correction) Connection with different vendors can cause some issues with. In this case we discuss about making a 100Gb/s link between Arista Switch and Checkpoint firewall. The error correction under the 2 vendors are different and thankfully on Arista is possibly specify how we would …
Arista – Cli access without password
A good practise for manage a switch is to use certificate instead a password STEP 1.Add a local user : username admin privilege 15 secret kdfhsdfk_adfksbfjksbdpppp 2.Associate a public key username admin sshkey ssh-rsa AAAAAAAAAAAAAAAAAAAAAAAAetc admin@mydomain 3. Associate a role to user username admin role network-admin Well Done!
Arista MLS packet flooding
Arista – Trunk Native Vlan
In Arista switch, on trunk port, if you need to change native vlan and you have deployed all using a trunk group option and not a classical trunk mode you have to put inside a trunk group also the new native vlan : Now your hybrid port is ready to deploy!
Arista Security Advisory 0041
Yesterday (2019-06-26) Arista announced a security advisory for a kernel problem on multi platform device that run those SW version : EOS 4.22.0F 4.21.6M and below 4.20.13M and below 4.19.12M and below 4.18.11M and below The currently end of support code trains (4.17 and below) CloudVision: CVP: 2018.2.4 and below CVA: 2.1.1 and below MOS (Metamako OS): 0.21.0 and below …
ARISTA – Install and activate an extension
With Arista switch it’s possible that you need to install an extension for fix some bug or for use some extra functionality. Follow those simple steps for activating an extension : Move a swix file to switch under a vrf : Install an extension : Verify the state of extension : Copy the extension on boot sector
Vxlan routing on Arista DCS-7050tx
A vxlan routing isn’t available in default configuration on Arista DCS-7050TX, the switch born with vxlan bridging For activate a feature is needed to dedicate a physical interface to vxlan routing and you can follow those simple steps : Choose the physical interface and configure it as follow : now you have to configure a virtual interface : well done, …
Rate Limit on Arista switch
If you need to limit egress/ingress trafic on Arista switch read this First create a policy-map : It is important to select class-default for applying the policy to all traffic, if you need a certains queue you can do it Second apply the policy to an interface Verify : That’s all
Multi-Chassis Link Aggregation is the possibility with the Arista switch in order to utilize all interconnects in an active/active manner. We will start from the below design : with the the mlag configured between the 2 switch, all the path are in forward mode CONFIGURATION PORT-CHANNEL NO SPANNING-TREE FOR MLAG VLAN CONFIGURATION INTERFACE PTP CONFIGURATION MLAG VERIFY CONFIGURATION DUAL-HOMED LINK …