> and hence being implemented on IOS-XR within the Cisco environment today
I disagree! .. Engineering is all about optimization, and using an ASR1k (which is being marketed as an "edge/PE router") in my edge doesn't mean that my network is not a "high-scale environment", it does mean that it fits my needs in this location, where other IOS-XR (ASR9k) fits in others. Plus, PCEP is no magic, Juniper's MX series starting from the vMX is supporting PCEP. They didn't claim that, a "higher-scale environment" is being required for this. > the demand for online calculation has increased - either due to dependencies > for new TE path-instantiating protocols (e.g., SR), or more complex > constraints that cannot be well met by offline calculation or CSPF That's why PCEP support should be added to the road-map in the near future. Mohamed Kamal Core Network Sr. Engineer On 4/5/2015 8:33 PM, Rob Shakir wrote: > On 30 March 2015 at 15:42:59, Mohamed Kamal (mka...@noor.net) wrote: >> I'm wondering, why there is no MPLS-TE PCE support for IOS-XE till now?! >> >> Should I be getting a 9k/CRS on the edge to implement an automatic tool >> to build MPLS-TE tunnels! > In general, PCE(P) implementations have been limited. IMHO the last 10 years > of RSVP-TE management has generally been done with auto-mesh tools, or > in-house driven offline path calculation tools (e.g., WANDL, Cariden, Aria…). > > As such, the demand for online calculation has increased - either due to > dependencies for new TE path-instantiating protocols (e.g., SR), or more > complex constraints that cannot be well met by offline calculation or CSPF > (e.g., path-diversity with disjoint head-end PEs). This demand is mainly > coming in higher-scale environments - and hence being implemented on IOS-XR > within the Cisco environment today. I expect this is why IOS-XE is lagging. > There are certainly requests for support - but as Mark says, you’ll need to > interface with your account team to figure out when code will be available > for your platform. > > As to whether you should buy an IOS XR device for your edge, I’m not sure > what kind of logic would mean that device selection is solely based on PCEP > support :-). I would certainly look more into the existing “automatic” tools, > and possibilities for offline calculation in the interim period. > > r. >
