Does new Ethernet service card ES20-GE3C support only SFP-GE (DOM) tranceivers, or tranceives GLC-LH-SM and GLC-SX-MM is also supported and working in this card?

Does SPA interface (SPA-2X1GE) support DWDM SFP? What is maximum number of SPA-2x1GE in one SIP-400 module? Does OSM-4G and 7600-ES20 module support DWDM SFP. What is difference between those cards if we talk about this card as core-facing card, and...

What do you think about VPLS as way of transport to centralized BRAS location. I know that cisco propose EoMPLS for HSI in aggragation network, but we have one centralized BRAS, and this BRAS is connected directly to PE router(7609). Is it only solut...

What do you think about VPLS as way of transport to centralized BRAS location. I know that cisco propose EoMPLS for HSI in aggragation network, but we have one centralized BRAS, and this BRAS is connected directly to PE router(7609). Is it only solut...

Please can you provide me information about differencess between those 2 modules, considering MPLS support. I am interested in VPLS feature support. Is this new ES20 card support non H-VPLS, like situation where we have access or trunk (dot1q) port o...