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YouTube AMA – How to spec out a server for IT Labs
YouTube AMA – How to spec out a server for IT Labs
#YouTube #AMA #spec #server #Labs
“Rob Riker’s Tech Channel”
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Hello Rob, I have some question regarding failover by means of BGP. I have some designs at work which I don't understand. Could you please explain this design?
Design:
There is Core Switch connected to WAN with MPLS and it has eBGP peering with SP's provider edge Router. Also there is Router which is connected to Internet and it's being used as DMVPN router and it has eBGP peering over DMVPN cloud. So, MPLS connected to Core Switch is primary WAN link and DMVPN configured on Router is back up WAN link. Also, there is iBGP peering between Core Switch and DMVPN Router. Core Switch has SVIs and runs EIGRP and it's redistribute SVIs networks with EIGRP into BGP to send it to MPLS cloud. Also Core Switch has EIGRP adjacency with DMVPN router.
I'll try to summarize in order not to confuse you:
Core Switch connected to MPLS and has eBGP peering with MPLS SP.
Router runs DMVPN and has eBGP peering over DMVPN cloud.
There is iBGP peering and EIGRP adjacency between Core Switch and Router.
MPLS is used as primary and DMVPN as secondary.
LAN network is connected to Core Switch.
Redistribution config on Core Switch: mutual redistribution between BGP and EIGRP. Also static routes are redistributed into BGP.
Redistribution config on Router: EIGRP is redistributed into BGP.
Could you please explain why iBGP between Core Switch and Router is needed there? And what about redistribution, I don't understand why BGP to EIGRP redistribution is needed on Core Switch. Could you please reply to this comment during upcoming Tech Support Thursday?
Are the 'cores' a limitation to the # of devices you can have in an Eve instance ?? i.e. If I have 20 ….errr logical processors ( 2 sockets, 10 cores per) does that mean I can only have, for instance, 10 Nexus 9K images running (2 cpu's per device) or is it more a function of available GHZ ??
Thanks for the video. I have 2 C220 m4s , learning for VCTA-DCV on them
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Thank you for the server information. Researching to buy my first server to mainly do cisco SP studies
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