50MBs Comcast Business class cable & MPLS 1.5 MBs T-1 line. Where's the bottleneck?
Posted on 2011-02-16
Have a question I'm pretty sure I know the answer to already, just looking for confirmation or alternatives to my quandary. Here goes:
Our business division has a 50MBs Comcast Business class internet line in house. On any given day measured speeds run from 35MBs -53 MBs- not too shabby for the low cost we pay. Corp wants us to route *most* of our IP traffic over the MPLS line which is only 1.5 MBs, and we have an excellent Zultys VOIP phone system in house which uses approx 30% of a T-1 line. All traffic outbound is routed back to the Corp office through a Cisco router and into one of 2 DS3 Hubs, located west coast and east coast in the U.S. The big problem we have been seeing are horrible overall bandwidth and slowdowns on our outbound traffic to the DS3 hubs, while the internal Comcast connection we don't route outbound to the DS3 hubs rocks.
I understand the so-called value of a MPLS line and the SLA levels, and that our WAN is tied together via the MPLS etc... but what I really want is raw bandwidth. I want to use our Comcast phat line as our primary and have already located an SLA failover config for the Cisco router that would switch us over to the thin 1.5MBs MPLS T-1 in the event Comcast burped. The network folks at Corp simply do not have the bandwidth available to handle our massive pipe however, since the west coast DS3 is at 98.7% use already and the east coast DS3 is at 95.5%. There are approx 20 locations US wide that share these 2 DS3 hubs and frankly, they are past overloaded. The fault tolerance no longer exists since each DS3 hub is extremely overloaded and they cannot fail over to each other without the bottom falling out.
My suggestion to alleviate these issues would be to add at *least* one more hub location on the west coast (preferably a 50-80MBs fiber line) and optimally another on the east coast. This would take the load off of the 2 over worked DS3 hubs we have now, and create some real fault tolerance in the form of an 'X' with the four locations. Even if 2 points drop off you still have 2 left.
So I ask you experts: Have I described what sound like real infrastructure issues to you?
Is it so wrong to tell people that we have outgrown our dated WAN setup and need to modernize? NOW?
Is it that wrong to route all your traffic over the 50MBs Comcast line when you have an MPLS T-1 as a backup?
Or would you route your traffic through the MPLS line even though 30% of the 1.5MBs is already consumed by the VOIP phones?
Sanity check time, because this needs to be fixed ASAP!