01-07-2020 06:41 PM
Looking for some guidance and advice...So planning a MPLS migration to an ATT Layer 2 ASE(switched ethernet network).Infrastructure is pretty standard as in 20 sites that are connected thru MPLS i.e. BGP. We use EIGRP internally throughout the netwrok. We have 2 data centers that are primary exit points for the sites. The data centers also have SIP trucks associated with them as well as 1 of the sites.
Anyone have any experience with such a conversion? We are thinking of eliminating all the branch routers and upgrading the current switches to newer C9300/9400 and just using the Layer 3 function to route traffic using our EIGRP as BGP will going away.
My main concern is the elimination of the routers which we are being told we don't need. BGP will essentially go away and we use our EIGRP across the VPLS. However I'm unclear as to how QoS would work on the 9300/9400 which we have set on our current routers. Are there are downsides to not using the router I guess or are we handicapping ourselves for future designs like SD WAN?
01-08-2020 10:03 AM
01-08-2020 05:13 PM
Thanks for the quick response.Our current ISP(ATT) does preform some QoS on their routers but I don't know off hand. I know we have our own QoS policy applied at 40% for all VOIP traffic. Currently most sites range from 10-20mbps with larger ones at 100mbps. With that being said some sites have "voice issues" like jitter and static. We use 3 SIP trucks provided the same ISP. With the amount of bandwidth that we are upgrading to we are being advised that VOIP issues will go away so no need to worry. I take that with a grain of salt...needless to say you do bring up some valid points...the QoS functions on a router will differ, how much I'm not too sure and does the ISP offer any L2 QoS for "cloud" egress traffic. I will follow up with them regarding the last point.
I would hate to remove all branch routers, upgrade to new switches and then come a day wheres there some congestion or VOIP quality...someone in the background... "I told you so"
01-09-2020 09:46 AM
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