Guys, I have a customer who's getting a L3 MPLS service from one of the major providers soon. They won't be doing any VRF tags as it's L3 MPLS
Where would one typically terminate these connections? It's an ethernet hand-off so should I simply terminate it into the internal LAN 4500 switch? Do I really need a router to terminate it to? Are there any advantages or disadvantages to either?
A MPLS L3 solution looks to the customer like one big IPv4 router. From this point of view one can rephrase your question: What should I connect to a router? does it have to be another router or can it be a Cat4500?
Well, unless there are specific requirements/features which cannot be achieved with a Cat4500, but only with a 3800 or the like, you should be fine with the LAN switch.
Things you might or might not have to consider: difference in QoS capabilities, security features like FW feature set, NAT etc.
In brief: you will be fine connecting with your Cat4500 unless you need a feature it does not support. The MPLS service is not imposing such requirements towards your equipment.
Do most of these services providers who provide L3 MPLS also allow QOS tags to flow through the network? They are planning to deploy VOIP in the future so if this is the case, I should probably forego the 4500 switch and terminate into a 3800 ISR
They do and if you ask your sales rep they can give you a bunch of options. I prefer to keep a boundary between the carrier and my network for reasons Martin hit on. You'll probably have to do BGP and you'll have to make sure you have the right IOS, enough memory, etc.
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...