+1 Mark There’s no modern silicon that doesn’t support MPLS (and is capable of imposing at least 3 labels). There’s 0 additional price for vendors to enable MPLS on their devices. The rest is subject to vendors’ licensing and is completely artificial. SR-MPLS uses MPLS data-plane and requires no changes to silicon, since head-end might be required to push more labels (TE, BSIDs, services)one needs to pay attention - (RFC8491/8476) allow signaling of MSD (maximum SID depth) if centralized controller/PCE is used for path computation. LDP after all the years of bug fixing is still a crappy protocol, moving to SR-MPLS makes all the sense.
Cheers, Jeff > On Jan 15, 2022, at 11:50, Mark Tinka <[email protected]> wrote: > > > >> On 1/15/22 19:22, Colton Conor wrote: >> >> True, but in general MPLS is more costly. It's available on limited >> devices, from limited vendors. Infact, many of these vendors, like >> Extreme, charge you if you want to enable MPLS features on a box. > > Well, I don't entirely agree. > > Pretty much all chips shipping now, either custom or merchant silicon, will > support MPLS. Whether the vendor chooses to implement it in code or not is a > whole other matter. > > If you need MPLS, chances are you can afford it. If you don't, then you don't > have to worry about it. > > For Extreme, are you referring to before or after they picked up Brocade? > > There is MPLS available in a number of cheap software suites. Even Mikrotik > provides MPLS support. Whether it works or not, I can't tell you. > > VyOS supports is too. Whether it works or not, I can't tell you. > > But I think we are long past the days of "MPLS is expensive". > > Mark.
