I had considered the ES20 card , this will be used for core routing , BFD, OSFP, BGP and MPLS. I was under the impression that the WS-6724-SFP was a LAN card?? > I was considering to get this line card + DFC for the mentioned chassis > over the SIP-600 and SPA-10x1GE, any comments? You might want to look at ES20, you'd be paying 10k more (list) and getting additional 10GE port. ES20 delivers L2+L3 inluding EVC which allows very rich L2 features. What you'd lose is some buffer depth (still massively more than LAN) and single tag vlan local signifance in subinterfaces. Also as it's newer card, you'd need to spend more time approving it. Also, as you didn't specify any task you're using it, I have to ask, have you considered LAN cards? -- ++ytti
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