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HI all let’s say we have a similar topology like the one above in which we have 2 arista switches forming a mlag peership between them and on the other side we just have 1 uplink router connected to both switches. is it possible to configure the router with a portchannel connected to both arista while running 2 different eBGP sessions one of each towards each arista? can this x2 eBGP sessions be runnig over the same vlan? let’s say svi1 on sw1, svi2 on sw2, svi3 on router port-channel sharing the same lan. If so, should that vlan be configured over the peerlink? somehow i could not manage to config it on a simulator. It did work if we use 2 different uplink vlans. Thanks in advance. |
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HI Tyler,
thanks for your reply. definitively the vEOS behavior with this setup is quite unstable. So if i understand you correctly you mean going to a traditional approach in which each Arista box will peer with through a p2p L3 interface towards the uplink router (Arista1 L3 p2p_#1 to R1 and Arista2 p2p L3 p2p_#2 to R1). If so, this means no MLAG between the Arista switches and the uplink router right, and no portchannel on the uplink router towards the Aristas? doesn’t this configuration restrict the possible future uplink router mlag configuration towards the arista?
Best
Gab